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Text File | 1993-10-05 | 138.3 KB | 5,262 lines |
- ;; GCC machine description for Intel 80386.
- ;; Copyright (C) 1988 Free Software Foundation, Inc.
- ;; Mostly by William Schelter.
-
- ;; This file is part of GNU CC.
-
- ;; GNU CC is free software; you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation; either version 2, or (at your option)
- ;; any later version.
-
- ;; GNU CC is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
-
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU CC; see the file COPYING. If not, write to
- ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
-
- ;; The original PO technology requires these to be ordered by speed,
- ;; so that assigner will pick the fastest.
-
- ;; See file "rtl.def" for documentation on define_insn, match_*, et. al.
-
- ;; Macro #define NOTICE_UPDATE_CC in file i386.h handles condition code
- ;; updates for most instructions.
-
- ;; Macro REG_CLASS_FROM_LETTER in file i386.h defines the register
- ;; constraint letters.
-
- ;; the special asm out single letter directives following a '%' are:
- ;; 'z' mov%z1 would be movl, movw, or movb depending on the mode of
- ;; operands[1].
- ;; 'L' Print the opcode suffix for a 32-bit integer opcode.
- ;; 'W' Print the opcode suffix for a 16-bit integer opcode.
- ;; 'B' Print the opcode suffix for an 8-bit integer opcode.
- ;; 'S' Print the opcode suffix for a 32-bit float opcode.
- ;; 'Q' Print the opcode suffix for a 64-bit float opcode.
-
- ;; 'b' Print the QImode name of the register for the indicated operand.
- ;; %b0 would print %al if operands[0] is reg 0.
- ;; 'w' Likewise, print the HImode name of the register.
- ;; 'k' Likewise, print the SImode name of the register.
- ;; 'h' Print the QImode name for a "high" register, either ah, bh, ch or dh.
- ;; 'y' Print "st(0)" instead of "st" as a register.
- ;; 'T' Print the opcode suffix for an 80-bit extended real XFmode float opcode.
-
- ;; UNSPEC usage:
- ;; 0 This is a `scas' operation. The mode of the UNSPEC is always SImode.
- ;; operand 0 is the memory address to scan.
- ;; operand 1 is a register containing the value to scan for. The mode
- ;; of the scas opcode will be the same as the mode of this operand.
- ;; operand 2 is the known alignment of operand 0.
- ;; 1 This is a `sin' operation. The mode of the UNSPEC is MODE_FLOAT.
- ;; operand 0 is the argument for `sin'.
- ;; 2 This is a `cos' operation. The mode of the UNSPEC is MODE_FLOAT.
- ;; operand 0 is the argument for `cos'.
-
- ;; "movl MEM,REG / testl REG,REG" is faster on a 486 than "cmpl $0,MEM".
- ;; But restricting MEM here would mean that gcc could not remove a redundant
- ;; test in cases like "incl MEM / je TARGET".
- ;;
- ;; We don't want to allow a constant operand for test insns because
- ;; (set (cc0) (const_int foo)) has no mode information. Such insns will
- ;; be folded while optimizing anyway.
-
- ;; All test insns have expanders that save the operands away without
- ;; actually generating RTL. The bCOND or sCOND (emitted immediately
- ;; after the tstM or cmp) will actually emit the tstM or cmpM.
-
- (define_insn "tstsi_1"
- [(set (cc0)
- (match_operand:SI 0 "nonimmediate_operand" "rm"))]
- ""
- "*
- {
- if (REG_P (operands[0]))
- return AS2 (test%L0,%0,%0);
-
- operands[1] = const0_rtx;
- return AS2 (cmp%L0,%1,%0);
- }")
-
- (define_expand "tstsi"
- [(set (cc0)
- (match_operand:SI 0 "nonimmediate_operand" ""))]
- ""
- "
- {
- i386_compare_gen = gen_tstsi_1;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- (define_insn "tsthi_1"
- [(set (cc0)
- (match_operand:HI 0 "nonimmediate_operand" "rm"))]
- ""
- "*
- {
- if (REG_P (operands[0]))
- return AS2 (test%W0,%0,%0);
-
- operands[1] = const0_rtx;
- return AS2 (cmp%W0,%1,%0);
- }")
-
- (define_expand "tsthi"
- [(set (cc0)
- (match_operand:HI 0 "nonimmediate_operand" ""))]
- ""
- "
- {
- i386_compare_gen = gen_tsthi_1;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- (define_insn "tstqi_1"
- [(set (cc0)
- (match_operand:QI 0 "nonimmediate_operand" "qm"))]
- ""
- "*
- {
- if (REG_P (operands[0]))
- return AS2 (test%B0,%0,%0);
-
- operands[1] = const0_rtx;
- return AS2 (cmp%B0,%1,%0);
- }")
-
- (define_expand "tstqi"
- [(set (cc0)
- (match_operand:QI 0 "nonimmediate_operand" ""))]
- ""
- "
- {
- i386_compare_gen = gen_tstqi_1;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- (define_insn "tstsf_cc"
- [(set (cc0)
- (match_operand:SF 0 "register_operand" "f"))
- (clobber (match_scratch:HI 1 "=a"))]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "*
- {
- if (! STACK_TOP_P (operands[0]))
- abort ();
-
- output_asm_insn (\"ftst\", operands);
-
- if (find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fstp,%y0), operands);
-
- return (char *) output_fp_cc0_set (insn);
- }")
-
- ;; Don't generate tstsf if generating IEEE code, since the `ftst' opcode
- ;; isn't IEEE compliant.
-
- (define_expand "tstsf"
- [(parallel [(set (cc0)
- (match_operand:SF 0 "register_operand" ""))
- (clobber (match_scratch:HI 1 ""))])]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "
- {
- i386_compare_gen = gen_tstsf_cc;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- (define_insn "tstdf_cc"
- [(set (cc0)
- (match_operand:DF 0 "register_operand" "f"))
- (clobber (match_scratch:HI 1 "=a"))]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "*
- {
- if (! STACK_TOP_P (operands[0]))
- abort ();
-
- output_asm_insn (\"ftst\", operands);
-
- if (find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fstp,%y0), operands);
-
- return (char *) output_fp_cc0_set (insn);
- }")
-
- ;; Don't generate tstdf if generating IEEE code, since the `ftst' opcode
- ;; isn't IEEE compliant.
-
- (define_expand "tstdf"
- [(parallel [(set (cc0)
- (match_operand:DF 0 "register_operand" ""))
- (clobber (match_scratch:HI 1 ""))])]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "
- {
- i386_compare_gen = gen_tstdf_cc;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- (define_insn "tstxf_cc"
- [(set (cc0)
- (match_operand:XF 0 "register_operand" "f"))
- (clobber (match_scratch:HI 1 "=a"))]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "*
- {
- if (! STACK_TOP_P (operands[0]))
- abort ();
-
- output_asm_insn (\"ftst\", operands);
-
- if (find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fstp,%y0), operands);
-
- return (char *) output_fp_cc0_set (insn);
- }")
-
- ;; Don't generate tstdf if generating IEEE code, since the `ftst' opcode
- ;; isn't IEEE compliant.
-
- (define_expand "tstxf"
- [(parallel [(set (cc0)
- (match_operand:XF 0 "register_operand" ""))
- (clobber (match_scratch:HI 1 ""))])]
- "TARGET_80387 && ! TARGET_IEEE_FP"
- "
- {
- i386_compare_gen = gen_tstxf_cc;
- i386_compare_op0 = operands[0];
- DONE;
- }")
-
- ;;- compare instructions. See comments above tstM patterns about
- ;; expansion of these insns.
-
- (define_insn "cmpsi_1"
- [(set (cc0)
- (compare (match_operand:SI 0 "nonimmediate_operand" "mr,r")
- (match_operand:SI 1 "general_operand" "ri,mr")))]
- "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
- "*
- {
- if (CONSTANT_P (operands[0]) || GET_CODE (operands[1]) == MEM)
- {
- cc_status.flags |= CC_REVERSED;
- return AS2 (cmp%L0,%0,%1);
- }
- return AS2 (cmp%L0,%1,%0);
- }")
-
- (define_expand "cmpsi"
- [(set (cc0)
- (compare (match_operand:SI 0 "nonimmediate_operand" "")
- (match_operand:SI 1 "general_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
- operands[0] = force_reg (SImode, operands[0]);
-
- i386_compare_gen = gen_cmpsi_1;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- (define_insn "cmphi_1"
- [(set (cc0)
- (compare (match_operand:HI 0 "nonimmediate_operand" "mr,r")
- (match_operand:HI 1 "general_operand" "ri,mr")))]
- "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
- "*
- {
- if (CONSTANT_P (operands[0]) || GET_CODE (operands[1]) == MEM)
- {
- cc_status.flags |= CC_REVERSED;
- return AS2 (cmp%W0,%0,%1);
- }
- return AS2 (cmp%W0,%1,%0);
- }")
-
- (define_expand "cmphi"
- [(set (cc0)
- (compare (match_operand:HI 0 "nonimmediate_operand" "")
- (match_operand:HI 1 "general_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
- operands[0] = force_reg (HImode, operands[0]);
-
- i386_compare_gen = gen_cmphi_1;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- (define_insn "cmpqi_1"
- [(set (cc0)
- (compare (match_operand:QI 0 "nonimmediate_operand" "q,mq")
- (match_operand:QI 1 "general_operand" "qm,nq")))]
- "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
- "*
- {
- if (CONSTANT_P (operands[0]) || GET_CODE (operands[1]) == MEM)
- {
- cc_status.flags |= CC_REVERSED;
- return AS2 (cmp%B0,%0,%1);
- }
- return AS2 (cmp%B0,%1,%0);
- }")
-
- (define_expand "cmpqi"
- [(set (cc0)
- (compare (match_operand:QI 0 "nonimmediate_operand" "")
- (match_operand:QI 1 "general_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
- operands[0] = force_reg (QImode, operands[0]);
-
- i386_compare_gen = gen_cmpqi_1;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- ;; These implement float point compares. For each of DFmode and
- ;; SFmode, there is the normal insn, and an insn where the second operand
- ;; is converted to the desired mode.
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:XF 0 "nonimmediate_operand" "f")
- (match_operand:XF 1 "nonimmediate_operand" "f")]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387
- && (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM)"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:XF 0 "register_operand" "f")
- (float:XF
- (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(float:XF
- (match_operand:SI 0 "nonimmediate_operand" "rm"))
- (match_operand:XF 1 "register_operand" "f")]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:XF 0 "register_operand" "f")
- (float_extend:XF
- (match_operand:DF 1 "nonimmediate_operand" "fm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:XF 0 "register_operand" "f")
- (float_extend:XF
- (match_operand:SF 1 "nonimmediate_operand" "fm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (compare:CCFPEQ (match_operand:XF 0 "register_operand" "f")
- (match_operand:XF 1 "register_operand" "f")))
- (clobber (match_scratch:HI 2 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:DF 0 "nonimmediate_operand" "f,fm")
- (match_operand:DF 1 "nonimmediate_operand" "fm,f")]))
- (clobber (match_scratch:HI 3 "=a,a"))]
- "TARGET_80387
- && (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM)"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:DF 0 "register_operand" "f")
- (float:DF
- (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(float:DF
- (match_operand:SI 0 "nonimmediate_operand" "rm"))
- (match_operand:DF 1 "register_operand" "f")]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:DF 0 "register_operand" "f")
- (float_extend:DF
- (match_operand:SF 1 "nonimmediate_operand" "fm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(float_extend:DF
- (match_operand:SF 0 "nonimmediate_operand" "fm"))
- (match_operand:DF 1 "register_operand" "f")]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (compare:CCFPEQ (match_operand:DF 0 "register_operand" "f")
- (match_operand:DF 1 "register_operand" "f")))
- (clobber (match_scratch:HI 2 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- ;; These two insns will never be generated by combine due to the mode of
- ;; the COMPARE.
- ;(define_insn ""
- ; [(set (cc0)
- ; (compare:CCFPEQ (match_operand:DF 0 "register_operand" "f")
- ; (float_extend:DF
- ; (match_operand:SF 1 "register_operand" "f"))))
- ; (clobber (match_scratch:HI 2 "=a"))]
- ; "TARGET_80387"
- ; "* return (char *) output_float_compare (insn, operands);")
- ;
- ;(define_insn ""
- ; [(set (cc0)
- ; (compare:CCFPEQ (float_extend:DF
- ; (match_operand:SF 0 "register_operand" "f"))
- ; (match_operand:DF 1 "register_operand" "f")))
- ; (clobber (match_scratch:HI 2 "=a"))]
- ; "TARGET_80387"
- ; "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn "cmpsf_cc_1"
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:SF 0 "nonimmediate_operand" "f,fm")
- (match_operand:SF 1 "nonimmediate_operand" "fm,f")]))
- (clobber (match_scratch:HI 3 "=a,a"))]
- "TARGET_80387
- && (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM)"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(match_operand:SF 0 "register_operand" "f")
- (float:SF
- (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (match_operator 2 "VOIDmode_compare_op"
- [(float:SF
- (match_operand:SI 0 "nonimmediate_operand" "rm"))
- (match_operand:SF 1 "register_operand" "f")]))
- (clobber (match_scratch:HI 3 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_insn ""
- [(set (cc0)
- (compare:CCFPEQ (match_operand:SF 0 "register_operand" "f")
- (match_operand:SF 1 "register_operand" "f")))
- (clobber (match_scratch:HI 2 "=a"))]
- "TARGET_80387"
- "* return (char *) output_float_compare (insn, operands);")
-
- (define_expand "cmpxf"
- [(set (cc0)
- (compare (match_operand:XF 0 "register_operand" "")
- (match_operand:XF 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "
- {
- i386_compare_gen = gen_cmpxf_cc;
- i386_compare_gen_eq = gen_cmpxf_ccfpeq;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- (define_expand "cmpdf"
- [(set (cc0)
- (compare (match_operand:DF 0 "register_operand" "")
- (match_operand:DF 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "
- {
- i386_compare_gen = gen_cmpdf_cc;
- i386_compare_gen_eq = gen_cmpdf_ccfpeq;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- (define_expand "cmpsf"
- [(set (cc0)
- (compare (match_operand:SF 0 "register_operand" "")
- (match_operand:SF 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "
- {
- i386_compare_gen = gen_cmpsf_cc;
- i386_compare_gen_eq = gen_cmpsf_ccfpeq;
- i386_compare_op0 = operands[0];
- i386_compare_op1 = operands[1];
- DONE;
- }")
-
- (define_expand "cmpxf_cc"
- [(parallel [(set (cc0)
- (compare (match_operand:XF 0 "register_operand" "")
- (match_operand:XF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "")
-
- (define_expand "cmpxf_ccfpeq"
- [(parallel [(set (cc0)
- (compare:CCFPEQ (match_operand:XF 0 "register_operand" "")
- (match_operand:XF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "
- {
- if (! register_operand (operands[1], XFmode))
- operands[1] = copy_to_mode_reg (XFmode, operands[1]);
- }")
-
- (define_expand "cmpdf_cc"
- [(parallel [(set (cc0)
- (compare (match_operand:DF 0 "register_operand" "")
- (match_operand:DF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "")
-
- (define_expand "cmpdf_ccfpeq"
- [(parallel [(set (cc0)
- (compare:CCFPEQ (match_operand:DF 0 "register_operand" "")
- (match_operand:DF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "
- {
- if (! register_operand (operands[1], DFmode))
- operands[1] = copy_to_mode_reg (DFmode, operands[1]);
- }")
-
- (define_expand "cmpsf_cc"
- [(parallel [(set (cc0)
- (compare (match_operand:SF 0 "register_operand" "")
- (match_operand:SF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "")
-
- (define_expand "cmpsf_ccfpeq"
- [(parallel [(set (cc0)
- (compare:CCFPEQ (match_operand:SF 0 "register_operand" "")
- (match_operand:SF 1 "register_operand" "")))
- (clobber (match_scratch:HI 2 ""))])]
- "TARGET_80387"
- "
- {
- if (! register_operand (operands[1], SFmode))
- operands[1] = copy_to_mode_reg (SFmode, operands[1]);
- }")
-
- ;; logical compare
-
- (define_insn ""
- [(set (cc0)
- (and:SI (match_operand:SI 0 "general_operand" "%ro")
- (match_operand:SI 1 "general_operand" "ri")))]
- ""
- "*
- {
- /* For small integers, we may actually use testb. */
- if (GET_CODE (operands[1]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))
- && (! REG_P (operands[0]) || QI_REG_P (operands[0])))
- {
- /* We may set the sign bit spuriously. */
-
- if ((INTVAL (operands[1]) & ~0xff) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- return AS2 (test%B0,%1,%b0);
- }
-
- if ((INTVAL (operands[1]) & ~0xff00) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (INTVAL (operands[1]) >> 8);
-
- if (QI_REG_P (operands[0]))
- return AS2 (test%B0,%1,%h0);
- else
- {
- operands[0] = adj_offsettable_operand (operands[0], 1);
- return AS2 (test%B0,%1,%b0);
- }
- }
-
- if (GET_CODE (operands[0]) == MEM
- && (INTVAL (operands[1]) & ~0xff0000) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (INTVAL (operands[1]) >> 16);
- operands[0] = adj_offsettable_operand (operands[0], 2);
- return AS2 (test%B0,%1,%b0);
- }
-
- if (GET_CODE (operands[0]) == MEM
- && (INTVAL (operands[1]) & ~0xff000000) == 0)
- {
- operands[1] = GEN_INT ((INTVAL (operands[1]) >> 24) & 0xff);
- operands[0] = adj_offsettable_operand (operands[0], 3);
- return AS2 (test%B0,%1,%b0);
- }
- }
-
- if (CONSTANT_P (operands[1]) || GET_CODE (operands[0]) == MEM)
- return AS2 (test%L0,%1,%0);
-
- return AS2 (test%L1,%0,%1);
- }")
-
- (define_insn ""
- [(set (cc0)
- (and:HI (match_operand:HI 0 "general_operand" "%ro")
- (match_operand:HI 1 "general_operand" "ri")))]
- ""
- "*
- {
- if (GET_CODE (operands[1]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))
- && (! REG_P (operands[0]) || QI_REG_P (operands[0])))
- {
- if ((INTVAL (operands[1]) & 0xff00) == 0)
- {
- /* ??? This might not be necessary. */
- if (INTVAL (operands[1]) & 0xffff0000)
- operands[1] = GEN_INT (INTVAL (operands[1]) & 0xff);
-
- /* We may set the sign bit spuriously. */
- cc_status.flags |= CC_NOT_NEGATIVE;
- return AS2 (test%B0,%1,%b0);
- }
-
- if ((INTVAL (operands[1]) & 0xff) == 0)
- {
- operands[1] = GEN_INT ((INTVAL (operands[1]) >> 8) & 0xff);
-
- if (QI_REG_P (operands[0]))
- return AS2 (test%B0,%1,%h0);
- else
- {
- operands[0] = adj_offsettable_operand (operands[0], 1);
- return AS2 (test%B0,%1,%b0);
- }
- }
- }
-
- if (CONSTANT_P (operands[1]) || GET_CODE (operands[0]) == MEM)
- return AS2 (test%W0,%1,%0);
-
- return AS2 (test%W1,%0,%1);
- }")
-
- (define_insn ""
- [(set (cc0)
- (and:QI (match_operand:QI 0 "general_operand" "%qm")
- (match_operand:QI 1 "general_operand" "qi")))]
- ""
- "*
- {
- if (CONSTANT_P (operands[1]) || GET_CODE (operands[0]) == MEM)
- return AS2 (test%B0,%1,%0);
-
- return AS2 (test%B1,%0,%1);
- }")
-
- ;; move instructions.
- ;; There is one for each machine mode,
- ;; and each is preceded by a corresponding push-insn pattern
- ;; (since pushes are not general_operands on the 386).
-
- (define_insn ""
- [(set (match_operand:SI 0 "push_operand" "=<")
- (match_operand:SI 1 "general_operand" "g"))]
- "! TARGET_486"
- "push%L0 %1")
-
- ;; On a 486, it is faster to move MEM to a REG and then push, rather than
- ;; push MEM directly.
-
- (define_insn ""
- [(set (match_operand:SI 0 "push_operand" "=<")
- (match_operand:SI 1 "general_operand" "ri"))]
- "TARGET_486"
- "push%L0 %1")
-
- ;; General case of fullword move.
-
- ;; If generating PIC code and operands[1] is a symbolic CONST, emit a
- ;; move to get the address of the symbolic object from the GOT.
-
- (define_expand "movsi"
- [(set (match_operand:SI 0 "general_operand" "")
- (match_operand:SI 1 "general_operand" ""))]
- ""
- "
- {
- extern int flag_pic;
-
- if (flag_pic && SYMBOLIC_CONST (operands[1]))
- emit_pic_move (operands, SImode);
- }")
-
- ;; On i486, incl reg is faster than movl $1,reg.
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=g,r")
- (match_operand:SI 1 "general_operand" "ri,m"))]
- ""
- "*
- {
- rtx link;
- if (operands[1] == const0_rtx && REG_P (operands[0]))
- return AS2 (xor%L0,%0,%0);
-
- if (operands[1] == const1_rtx
- && (link = find_reg_note (insn, REG_WAS_0, 0))
- /* Make sure the insn that stored the 0 is still present. */
- && ! INSN_DELETED_P (XEXP (link, 0))
- && GET_CODE (XEXP (link, 0)) != NOTE
- /* Make sure cross jumping didn't happen here. */
- && no_labels_between_p (XEXP (link, 0), insn)
- /* Make sure the reg hasn't been clobbered. */
- && ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
- /* Fastest way to change a 0 to a 1. */
- return AS1 (inc%L0,%0);
-
- return AS2 (mov%L0,%1,%0);
- }")
-
- (define_insn ""
- [(set (match_operand:HI 0 "push_operand" "=<")
- (match_operand:HI 1 "general_operand" "g"))]
- ""
- "push%W0 %1")
-
- ;; On i486, an incl and movl are both faster than incw and movw.
-
- (define_insn "movhi"
- [(set (match_operand:HI 0 "general_operand" "=g,r")
- (match_operand:HI 1 "general_operand" "ri,m"))]
- ""
- "*
- {
- rtx link;
- if (REG_P (operands[0]) && operands[1] == const0_rtx)
- return AS2 (xor%L0,%k0,%k0);
-
- if (REG_P (operands[0]) && operands[1] == const1_rtx
- && (link = find_reg_note (insn, REG_WAS_0, 0))
- /* Make sure the insn that stored the 0 is still present. */
- && ! INSN_DELETED_P (XEXP (link, 0))
- && GET_CODE (XEXP (link, 0)) != NOTE
- /* Make sure cross jumping didn't happen here. */
- && no_labels_between_p (XEXP (link, 0), insn)
- /* Make sure the reg hasn't been clobbered. */
- && ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
- /* Fastest way to change a 0 to a 1. */
- return AS1 (inc%L0,%k0);
-
- if (REG_P (operands[0]))
- {
- if (REG_P (operands[1]))
- return AS2 (mov%L0,%k1,%k0);
- else if (CONSTANT_P (operands[1]))
- return AS2 (mov%L0,%1,%k0);
- }
-
- return AS2 (mov%W0,%1,%0);
- }")
-
- (define_insn "movstricthi"
- [(set (strict_low_part (match_operand:HI 0 "general_operand" "+g,r"))
- (match_operand:HI 1 "general_operand" "ri,m"))]
- ""
- "*
- {
- rtx link;
- if (operands[1] == const0_rtx && REG_P (operands[0]))
- return AS2 (xor%W0,%0,%0);
-
- if (operands[1] == const1_rtx
- && (link = find_reg_note (insn, REG_WAS_0, 0))
- /* Make sure the insn that stored the 0 is still present. */
- && ! INSN_DELETED_P (XEXP (link, 0))
- && GET_CODE (XEXP (link, 0)) != NOTE
- /* Make sure cross jumping didn't happen here. */
- && no_labels_between_p (XEXP (link, 0), insn)
- /* Make sure the reg hasn't been clobbered. */
- && ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
- /* Fastest way to change a 0 to a 1. */
- return AS1 (inc%W0,%0);
-
- return AS2 (mov%W0,%1,%0);
- }")
-
- ;; emit_push_insn when it calls move_by_pieces
- ;; requires an insn to "push a byte".
- ;; But actually we use pushw, which has the effect of rounding
- ;; the amount pushed up to a halfword.
- (define_insn ""
- [(set (match_operand:QI 0 "push_operand" "=<")
- (match_operand:QI 1 "general_operand" "q"))]
- ""
- "*
- {
- operands[1] = gen_rtx (REG, HImode, REGNO (operands[1]));
- return AS1 (push%W0,%1);
- }")
-
- ;; On i486, incb reg is faster than movb $1,reg.
-
- ;; ??? Do a recognizer for zero_extract that looks just like this, but reads
- ;; or writes %ah, %bh, %ch, %dh.
-
- (define_insn "movqi"
- [(set (match_operand:QI 0 "general_operand" "=q,*r,qm")
- (match_operand:QI 1 "general_operand" "*g,q,qn"))]
- ""
- "*
- {
- rtx link;
- if (operands[1] == const0_rtx && REG_P (operands[0]))
- return AS2 (xor%B0,%0,%0);
-
- if (operands[1] == const1_rtx
- && (link = find_reg_note (insn, REG_WAS_0, 0))
- /* Make sure the insn that stored the 0 is still present. */
- && ! INSN_DELETED_P (XEXP (link, 0))
- && GET_CODE (XEXP (link, 0)) != NOTE
- /* Make sure cross jumping didn't happen here. */
- && no_labels_between_p (XEXP (link, 0), insn)
- /* Make sure the reg hasn't been clobbered. */
- && ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
- /* Fastest way to change a 0 to a 1. */
- return AS1 (inc%B0,%0);
-
- /* If mov%B0 isn't allowed for one of these regs, use mov%L0. */
- if (NON_QI_REG_P (operands[0]) || NON_QI_REG_P (operands[1]))
- return (AS2 (mov%L0,%k1,%k0));
-
- return (AS2 (mov%B0,%1,%0));
- }")
-
- ;; If it becomes necessary to support movstrictqi into %esi or %edi,
- ;; use the insn sequence:
- ;;
- ;; shrdl $8,srcreg,dstreg
- ;; rorl $24,dstreg
- ;;
- ;; If operands[1] is a constant, then an andl/orl sequence would be
- ;; faster.
-
- (define_insn "movstrictqi"
- [(set (strict_low_part (match_operand:QI 0 "general_operand" "+qm,q"))
- (match_operand:QI 1 "general_operand" "*qn,m"))]
- ""
- "*
- {
- rtx link;
- if (operands[1] == const0_rtx && REG_P (operands[0]))
- return AS2 (xor%B0,%0,%0);
-
- if (operands[1] == const1_rtx
- && (link = find_reg_note (insn, REG_WAS_0, 0))
- /* Make sure the insn that stored the 0 is still present. */
- && ! INSN_DELETED_P (XEXP (link, 0))
- && GET_CODE (XEXP (link, 0)) != NOTE
- /* Make sure cross jumping didn't happen here. */
- && no_labels_between_p (XEXP (link, 0), insn)
- /* Make sure the reg hasn't been clobbered. */
- && ! reg_set_between_p (operands[0], XEXP (link, 0), insn))
- /* Fastest way to change a 0 to a 1. */
- return AS1 (inc%B0,%0);
-
- /* If mov%B0 isn't allowed for one of these regs, use mov%L0. */
- if (NON_QI_REG_P (operands[0]) || NON_QI_REG_P (operands[1]))
- {
- abort ();
- return (AS2 (mov%L0,%k1,%k0));
- }
-
- return AS2 (mov%B0,%1,%0);
- }")
-
- (define_insn ""
- [(set (match_operand:SF 0 "push_operand" "=<,<")
- (match_operand:SF 1 "general_operand" "gF,f"))]
- ""
- "*
- {
- if (STACK_REG_P (operands[1]))
- {
- rtx xops[3];
-
- if (! STACK_TOP_P (operands[1]))
- abort ();
-
- xops[0] = AT_SP (SFmode);
- xops[1] = GEN_INT (4);
- xops[2] = stack_pointer_rtx;
-
- output_asm_insn (AS2 (sub%L2,%1,%2), xops);
-
- if (find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fstp%S0,%0), xops);
- else
- output_asm_insn (AS1 (fst%S0,%0), xops);
- RET;
- }
- return AS1 (push%L1,%1);
- }")
-
- ;; Allow MEM-MEM moves before reload. The reload class for such a
- ;; move will be ALL_REGS. PREFERRED_RELOAD_CLASS will narrow this to
- ;; GENERAL_REGS. For the purposes of regclass, prefer FLOAT_REGS.
-
- (define_insn "movsf"
- [(set (match_operand:SF 0 "general_operand" "=*rfm,*rf,f,!*rm")
- (match_operand:SF 1 "general_operand" "*rf,*rfm,fG,fF"))]
- ""
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- /* First handle a `pop' insn or a `fld %st(0)' */
-
- if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
- {
- if (stack_top_dies)
- return AS1 (fstp,%y0);
- else
- return AS1 (fld,%y0);
- }
-
- /* Handle a transfer between the 387 and a 386 register */
-
- if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- /* Handle other kinds of writes from the 387 */
-
- if (STACK_TOP_P (operands[1]))
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%y0);
- else
- return AS1 (fst%z0,%y0);
- }
-
- /* Handle other kinds of reads to the 387 */
-
- if (STACK_TOP_P (operands[0]) && GET_CODE (operands[1]) == CONST_DOUBLE)
- return (char *) output_move_const_single (operands);
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- /* Handle all SFmode moves not involving the 387 */
-
- return (char *) singlemove_string (operands);
- }")
-
- ;;should change to handle the memory operands[1] without doing df push..
- (define_insn ""
- [(set (match_operand:DF 0 "push_operand" "=<,<")
- (match_operand:DF 1 "general_operand" "gF,f"))]
- ""
- "*
- {
- if (STACK_REG_P (operands[1]))
- {
- rtx xops[3];
-
- xops[0] = AT_SP (SFmode);
- xops[1] = GEN_INT (8);
- xops[2] = stack_pointer_rtx;
-
- output_asm_insn (AS2 (sub%L2,%1,%2), xops);
-
- if (find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fstp%Q0,%0), xops);
- else
- output_asm_insn (AS1 (fst%Q0,%0), xops);
-
- RET;
- }
- else
- return (char *) output_move_double (operands);
- }")
-
- (define_insn "swapdf"
- [(set (match_operand:DF 0 "register_operand" "f")
- (match_operand:DF 1 "register_operand" "f"))
- (set (match_dup 1)
- (match_dup 0))]
- ""
- "*
- {
- if (STACK_TOP_P (operands[0]))
- return AS1 (fxch,%1);
- else
- return AS1 (fxch,%0);
- }")
-
- ;; Allow MEM-MEM moves before reload. The reload class for such a
- ;; move will be ALL_REGS. PREFERRED_RELOAD_CLASS will narrow this to
- ;; GENERAL_REGS. For the purposes of regclass, prefer FLOAT_REGS.
-
- (define_insn "movdf"
- [(set (match_operand:DF 0 "general_operand" "=*rfm,*rf,f,!*rm")
- (match_operand:DF 1 "general_operand" "*rf,*rfm,fG,fF"))]
- ""
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- /* First handle a `pop' insn or a `fld %st(0)' */
-
- if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
- {
- if (stack_top_dies)
- return AS1 (fstp,%y0);
- else
- return AS1 (fld,%y0);
- }
-
- /* Handle a transfer between the 387 and a 386 register */
-
- if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- /* Handle other kinds of writes from the 387 */
-
- if (STACK_TOP_P (operands[1]))
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%y0);
- else
- return AS1 (fst%z0,%y0);
- }
-
- /* Handle other kinds of reads to the 387 */
-
- if (STACK_TOP_P (operands[0]) && GET_CODE (operands[1]) == CONST_DOUBLE)
- return (char *) output_move_const_single (operands);
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- /* Handle all DFmode moves not involving the 387 */
-
- return (char *) output_move_double (operands);
- }")
-
- (define_insn ""
- [(set (match_operand:XF 0 "push_operand" "=<,<")
- (match_operand:XF 1 "general_operand" "gF,f"))]
- ""
- "*
- {
- if (STACK_REG_P (operands[1]))
- {
- rtx xops[3];
-
- xops[0] = AT_SP (SFmode);
- xops[1] = GEN_INT (12);
- xops[2] = stack_pointer_rtx;
-
- output_asm_insn (AS2 (sub%L2,%1,%2), xops);
- output_asm_insn (AS1 (fstp%T0,%0), xops);
- if (! find_regno_note (insn, REG_DEAD, FIRST_STACK_REG))
- output_asm_insn (AS1 (fld%T0,%0), xops);
-
- RET;
- }
- else
- return (char *) output_move_double (operands);
- }")
-
- (define_insn "swapxf"
- [(set (match_operand:XF 0 "register_operand" "f")
- (match_operand:XF 1 "register_operand" "f"))
- (set (match_dup 1)
- (match_dup 0))]
- ""
- "*
- {
- if (STACK_TOP_P (operands[0]))
- return AS1 (fxch,%1);
- else
- return AS1 (fxch,%0);
- }")
-
- (define_insn "movxf"
- [(set (match_operand:XF 0 "general_operand" "=f,fm,!*rf,!*rm")
- (match_operand:XF 1 "general_operand" "fmG,f,*rfm,*rfF"))]
- ;; [(set (match_operand:XF 0 "general_operand" "=*rf,*rfm,f,!*rm")
- ;; (match_operand:XF 1 "general_operand" "*rfm,*rf,fG,fF"))]
- ""
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- /* First handle a `pop' insn or a `fld %st(0)' */
-
- if (STACK_TOP_P (operands[0]) && STACK_TOP_P (operands[1]))
- {
- if (stack_top_dies)
- return AS1 (fstp,%y0);
- else
- return AS1 (fld,%y0);
- }
-
- /* Handle a transfer between the 387 and a 386 register */
-
- if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- /* Handle other kinds of writes from the 387 */
-
- if (STACK_TOP_P (operands[1]))
- {
- output_asm_insn (AS1 (fstp%z0,%y0), operands);
- if (! stack_top_dies)
- return AS1 (fld%z0,%y0);
-
- RET;
- }
-
- /* Handle other kinds of reads to the 387 */
-
- if (STACK_TOP_P (operands[0]) && GET_CODE (operands[1]) == CONST_DOUBLE)
- return (char *) output_move_const_single (operands);
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- /* Handle all XFmode moves not involving the 387 */
-
- return (char *) output_move_double (operands);
- }")
-
- (define_insn ""
- [(set (match_operand:DI 0 "push_operand" "=<")
- (match_operand:DI 1 "general_operand" "roiF"))]
- ""
- "*
- {
- return (char *) output_move_double (operands);
- }")
-
- (define_insn "movdi"
- [(set (match_operand:DI 0 "general_operand" "=r,rm")
- (match_operand:DI 1 "general_operand" "m,riF"))]
- ""
- "*
- {
- return (char *) output_move_double (operands);
- }")
-
- ;;- conversion instructions
- ;;- NONE
-
- ;;- zero extension instructions
- ;; See comments by `andsi' for when andl is faster than movzx.
-
- (define_insn "zero_extendhisi2"
- [(set (match_operand:SI 0 "general_operand" "=r")
- (zero_extend:SI
- (match_operand:HI 1 "nonimmediate_operand" "rm")))]
- ""
- "*
- {
- if ((TARGET_486 || REGNO (operands[0]) == 0)
- && REG_P (operands[1]) && REGNO (operands[0]) == REGNO (operands[1]))
- {
- rtx xops[2];
- xops[0] = operands[0];
- xops[1] = GEN_INT (0xffff);
- output_asm_insn (AS2 (and%L0,%1,%k0), xops);
- RET;
- }
-
- #ifdef INTEL_SYNTAX
- return AS2 (movzx,%1,%0);
- #else
- return AS2 (movz%W0%L0,%1,%0);
- #endif
- }")
-
- (define_insn "zero_extendqihi2"
- [(set (match_operand:HI 0 "general_operand" "=r")
- (zero_extend:HI
- (match_operand:QI 1 "nonimmediate_operand" "qm")))]
- ""
- "*
- {
- if ((TARGET_486 || REGNO (operands[0]) == 0)
- && REG_P (operands[1]) && REGNO (operands[0]) == REGNO (operands[1]))
- {
- rtx xops[2];
- xops[0] = operands[0];
- xops[1] = GEN_INT (0xff);
- output_asm_insn (AS2 (and%L0,%1,%k0), xops);
- RET;
- }
-
- #ifdef INTEL_SYNTAX
- return AS2 (movzx,%1,%0);
- #else
- return AS2 (movz%B0%W0,%1,%0);
- #endif
- }")
-
- (define_insn "zero_extendqisi2"
- [(set (match_operand:SI 0 "general_operand" "=r")
- (zero_extend:SI
- (match_operand:QI 1 "nonimmediate_operand" "qm")))]
- ""
- "*
- {
- if ((TARGET_486 || REGNO (operands[0]) == 0)
- && REG_P (operands[1]) && REGNO (operands[0]) == REGNO (operands[1]))
- {
- rtx xops[2];
- xops[0] = operands[0];
- xops[1] = GEN_INT (0xff);
- output_asm_insn (AS2 (and%L0,%1,%k0), xops);
- RET;
- }
-
- #ifdef INTEL_SYNTAX
- return AS2 (movzx,%1,%0);
- #else
- return AS2 (movz%B0%L0,%1,%0);
- #endif
- }")
-
- (define_insn "zero_extendsidi2"
- [(set (match_operand:DI 0 "register_operand" "=r")
- (zero_extend:DI
- (match_operand:SI 1 "register_operand" "0")))]
- ""
- "*
- {
- operands[0] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1);
- return AS2 (xor%L0,%0,%0);
- }")
-
- ;;- sign extension instructions
-
- (define_insn "extendsidi2"
- [(set (match_operand:DI 0 "register_operand" "=r")
- (sign_extend:DI
- (match_operand:SI 1 "register_operand" "0")))]
- ""
- "*
- {
- if (REGNO (operands[0]) == 0)
- {
- /* This used to be cwtl, but that extends HI to SI somehow. */
- #ifdef INTEL_SYNTAX
- return \"cdq\";
- #else
- return \"cltd\";
- #endif
- }
-
- operands[1] = gen_rtx (REG, SImode, REGNO (operands[0]) + 1);
- output_asm_insn (AS2 (mov%L0,%0,%1), operands);
-
- operands[0] = GEN_INT (31);
- return AS2 (sar%L1,%0,%1);
- }")
-
- ;; Note that the i386 programmers' manual says that the opcodes
- ;; are named movsx..., but the assembler on Unix does not accept that.
- ;; We use what the Unix assembler expects.
-
- (define_insn "extendhisi2"
- [(set (match_operand:SI 0 "general_operand" "=r")
- (sign_extend:SI
- (match_operand:HI 1 "nonimmediate_operand" "rm")))]
- ""
- "*
- {
- if (REGNO (operands[0]) == 0
- && REG_P (operands[1]) && REGNO (operands[1]) == 0)
- #ifdef INTEL_SYNTAX
- return \"cwde\";
- #else
- return \"cwtl\";
- #endif
-
- #ifdef INTEL_SYNTAX
- return AS2 (movsx,%1,%0);
- #else
- return AS2 (movs%W0%L0,%1,%0);
- #endif
- }")
-
- (define_insn "extendqihi2"
- [(set (match_operand:HI 0 "general_operand" "=r")
- (sign_extend:HI
- (match_operand:QI 1 "nonimmediate_operand" "qm")))]
- ""
- "*
- {
- if (REGNO (operands[0]) == 0
- && REG_P (operands[1]) && REGNO (operands[1]) == 0)
- return \"cbtw\";
-
- #ifdef INTEL_SYNTAX
- return AS2 (movsx,%1,%0);
- #else
- return AS2 (movs%B0%W0,%1,%0);
- #endif
- }")
-
- (define_insn "extendqisi2"
- [(set (match_operand:SI 0 "general_operand" "=r")
- (sign_extend:SI
- (match_operand:QI 1 "nonimmediate_operand" "qm")))]
- ""
- "*
- {
- #ifdef INTEL_SYNTAX
- return AS2 (movsx,%1,%0);
- #else
- return AS2 (movs%B0%L0,%1,%0);
- #endif
- }")
-
- ;; Conversions between float and double.
-
- (define_insn "extendsfdf2"
- [(set (match_operand:DF 0 "general_operand" "=fm,f")
- (float_extend:DF
- (match_operand:SF 1 "general_operand" "f,fm")))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- if (GET_CODE (operands[0]) == MEM)
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%y0);
- else
- return AS1 (fst%z0,%y0);
- }
-
- abort ();
- }")
-
- (define_insn "extenddfxf2"
- [(set (match_operand:XF 0 "general_operand" "=fm,f,f,!*r")
- (float_extend:XF
- (match_operand:DF 1 "general_operand" "f,fm,!*r,f")))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- if (GET_CODE (operands[0]) == MEM)
- {
- output_asm_insn (AS1 (fstp%z0,%y0), operands);
- if (! stack_top_dies)
- return AS1 (fld%z0,%y0);
- RET;
- }
-
- abort ();
- }")
-
- (define_insn "extendsfxf2"
- [(set (match_operand:XF 0 "general_operand" "=fm,f,f,!*r")
- (float_extend:XF
- (match_operand:SF 1 "general_operand" "f,fm,!*r,f")))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
- RET;
- }
-
- if (NON_STACK_REG_P (operands[0]))
- {
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
-
- if (STACK_TOP_P (operands[0]))
- return AS1 (fld%z1,%y1);
-
- if (GET_CODE (operands[0]) == MEM)
- {
- output_asm_insn (AS1 (fstp%z0,%y0), operands);
- if (! stack_top_dies)
- return AS1 (fld%z0,%y0);
- RET;
- }
-
- abort ();
- }")
-
- (define_expand "truncdfsf2"
- [(parallel [(set (match_operand:SF 0 "nonimmediate_operand" "")
- (float_truncate:SF
- (match_operand:DF 1 "register_operand" "")))
- (clobber (match_dup 2))])]
- "TARGET_80387"
- "
- {
- operands[2] = (rtx) assign_386_stack_local (SFmode, 0);
- }")
-
- ;; This cannot output into an f-reg because there is no way to be sure
- ;; of truncating in that case. Otherwise this is just like a simple move
- ;; insn. So we pretend we can output to a reg in order to get better
- ;; register preferencing, but we really use a stack slot.
-
- (define_insn ""
- [(set (match_operand:SF 0 "nonimmediate_operand" "=f,m")
- (float_truncate:SF
- (match_operand:DF 1 "register_operand" "0,f")))
- (clobber (match_operand:SF 2 "memory_operand" "m,m"))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (GET_CODE (operands[0]) == MEM)
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%0);
- else
- return AS1 (fst%z0,%0);
- }
- else if (STACK_TOP_P (operands[0]))
- {
- output_asm_insn (AS1 (fstp%z2,%y2), operands);
- return AS1 (fld%z2,%y2);
- }
- else
- abort ();
- }")
-
- (define_insn "truncxfsf2"
- [(set (match_operand:SF 0 "general_operand" "=m,!*r")
- (float_truncate:SF
- (match_operand:XF 1 "register_operand" "f,f")))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (NON_STACK_REG_P (operands[0]))
- {
- if (stack_top_dies == 0)
- {
- output_asm_insn (AS1 (fld,%y1), operands);
- stack_top_dies = 1;
- }
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
- else if (GET_CODE (operands[0]) == MEM)
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%0);
- else
- {
- output_asm_insn (AS1 (fld,%y1), operands);
- return AS1 (fstp%z0,%0);
- }
- }
- else
- abort ();
- }")
-
- (define_insn "truncxfdf2"
- [(set (match_operand:DF 0 "general_operand" "=m,!*r")
- (float_truncate:DF
- (match_operand:XF 1 "register_operand" "f,f")))]
- "TARGET_80387"
- "*
- {
- int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
- if (NON_STACK_REG_P (operands[0]))
- {
- if (stack_top_dies == 0)
- {
- output_asm_insn (AS1 (fld,%y1), operands);
- stack_top_dies = 1;
- }
- output_to_reg (operands[0], stack_top_dies);
- RET;
- }
- else if (GET_CODE (operands[0]) == MEM)
- {
- if (stack_top_dies)
- return AS1 (fstp%z0,%0);
- else
- {
- output_asm_insn (AS1 (fld,%y1), operands);
- return AS1 (fstp%z0,%0);
- }
- }
- else
- abort ();
- }")
-
-
- ;; The 387 requires that the stack top dies after converting to DImode.
-
- ;; Represent an unsigned conversion from SImode to MODE_FLOAT by first
- ;; doing a signed conversion to DImode, and then taking just the low
- ;; part.
-
- (define_expand "fixuns_truncxfsi2"
- [(set (match_dup 4)
- (match_operand:XF 1 "register_operand" ""))
- (parallel [(set (match_dup 2)
- (fix:DI (fix:XF (match_dup 4))))
- (clobber (match_dup 4))
- (clobber (match_dup 5))
- (clobber (match_dup 6))
- (clobber (match_scratch:SI 7 ""))])
- (set (match_operand:SI 0 "general_operand" "")
- (match_dup 3))]
- "TARGET_80387"
- "
- {
- operands[2] = gen_reg_rtx (DImode);
- operands[3] = gen_lowpart (SImode, operands[2]);
- operands[4] = gen_reg_rtx (XFmode);
- operands[5] = (rtx) assign_386_stack_local (SImode, 0);
- operands[6] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fixuns_truncdfsi2"
- [(set (match_dup 4)
- (match_operand:DF 1 "register_operand" ""))
- (parallel [(set (match_dup 2)
- (fix:DI (fix:DF (match_dup 4))))
- (clobber (match_dup 4))
- (clobber (match_dup 5))
- (clobber (match_dup 6))
- (clobber (match_scratch:SI 7 ""))])
- (set (match_operand:SI 0 "general_operand" "")
- (match_dup 3))]
- "TARGET_80387"
- "
- {
- operands[2] = gen_reg_rtx (DImode);
- operands[3] = gen_lowpart (SImode, operands[2]);
- operands[4] = gen_reg_rtx (DFmode);
- operands[5] = (rtx) assign_386_stack_local (SImode, 0);
- operands[6] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fixuns_truncsfsi2"
- [(set (match_dup 4)
- (match_operand:SF 1 "register_operand" ""))
- (parallel [(set (match_dup 2)
- (fix:DI (fix:SF (match_dup 4))))
- (clobber (match_dup 4))
- (clobber (match_dup 5))
- (clobber (match_dup 6))
- (clobber (match_scratch:SI 7 ""))])
- (set (match_operand:SI 0 "general_operand" "")
- (match_dup 3))]
- "TARGET_80387"
- "
- {
- operands[2] = gen_reg_rtx (DImode);
- operands[3] = gen_lowpart (SImode, operands[2]);
- operands[4] = gen_reg_rtx (SFmode);
- operands[5] = (rtx) assign_386_stack_local (SImode, 0);
- operands[6] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- ;; Signed conversion to DImode.
-
- (define_expand "fix_truncxfdi2"
- [(set (match_dup 2)
- (match_operand:XF 1 "register_operand" ""))
- (parallel [(set (match_operand:DI 0 "general_operand" "")
- (fix:DI (fix:XF (match_dup 2))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_dup 4))
- (clobber (match_scratch:SI 5 ""))])]
- "TARGET_80387"
- "
- {
- operands[1] = copy_to_mode_reg (XFmode, operands[1]);
- operands[2] = gen_reg_rtx (XFmode);
- operands[3] = (rtx) assign_386_stack_local (SImode, 0);
- operands[4] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fix_truncdfdi2"
- [(set (match_dup 2)
- (match_operand:DF 1 "register_operand" ""))
- (parallel [(set (match_operand:DI 0 "general_operand" "")
- (fix:DI (fix:DF (match_dup 2))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_dup 4))
- (clobber (match_scratch:SI 5 ""))])]
- "TARGET_80387"
- "
- {
- operands[1] = copy_to_mode_reg (DFmode, operands[1]);
- operands[2] = gen_reg_rtx (DFmode);
- operands[3] = (rtx) assign_386_stack_local (SImode, 0);
- operands[4] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fix_truncsfdi2"
- [(set (match_dup 2)
- (match_operand:SF 1 "register_operand" ""))
- (parallel [(set (match_operand:DI 0 "general_operand" "")
- (fix:DI (fix:SF (match_dup 2))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_dup 4))
- (clobber (match_scratch:SI 5 ""))])]
- "TARGET_80387"
- "
- {
- operands[1] = copy_to_mode_reg (SFmode, operands[1]);
- operands[2] = gen_reg_rtx (SFmode);
- operands[3] = (rtx) assign_386_stack_local (SImode, 0);
- operands[4] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- ;; These match a signed conversion of either DFmode or SFmode to DImode.
-
- (define_insn ""
- [(set (match_operand:DI 0 "general_operand" "=rm")
- (fix:DI (fix:XF (match_operand:XF 1 "register_operand" "f"))))
- (clobber (match_dup 1))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DI 0 "general_operand" "=rm")
- (fix:DI (fix:DF (match_operand:DF 1 "register_operand" "f"))))
- (clobber (match_dup 1))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DI 0 "general_operand" "=rm")
- (fix:DI (fix:SF (match_operand:SF 1 "register_operand" "f"))))
- (clobber (match_dup 1))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- ;; Signed MODE_FLOAT conversion to SImode.
-
- (define_expand "fix_truncxfsi2"
- [(parallel [(set (match_operand:SI 0 "general_operand" "")
- (fix:SI
- (fix:XF (match_operand:XF 1 "register_operand" ""))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_scratch:SI 4 ""))])]
- "TARGET_80387"
- "
- {
- operands[2] = (rtx) assign_386_stack_local (SImode, 0);
- operands[3] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fix_truncdfsi2"
- [(parallel [(set (match_operand:SI 0 "general_operand" "")
- (fix:SI
- (fix:DF (match_operand:DF 1 "register_operand" ""))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_scratch:SI 4 ""))])]
- "TARGET_80387"
- "
- {
- operands[2] = (rtx) assign_386_stack_local (SImode, 0);
- operands[3] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_expand "fix_truncsfsi2"
- [(parallel [(set (match_operand:SI 0 "general_operand" "")
- (fix:SI
- (fix:SF (match_operand:SF 1 "register_operand" ""))))
- (clobber (match_dup 2))
- (clobber (match_dup 3))
- (clobber (match_scratch:SI 4 ""))])]
- "TARGET_80387"
- "
- {
- operands[2] = (rtx) assign_386_stack_local (SImode, 0);
- operands[3] = (rtx) assign_386_stack_local (SImode, 1);
- }")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (fix:SI (fix:XF (match_operand:XF 1 "register_operand" "f"))))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (fix:SI (fix:DF (match_operand:DF 1 "register_operand" "f"))))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (fix:SI (fix:SF (match_operand:SF 1 "register_operand" "f"))))
- (clobber (match_operand:SI 2 "memory_operand" "m"))
- (clobber (match_operand:SI 3 "memory_operand" "m"))
- (clobber (match_scratch:SI 4 "=&q"))]
- "TARGET_80387"
- "* return (char *) output_fix_trunc (insn, operands);")
-
- ;; Conversion between fixed point and floating point.
- ;; The actual pattern that matches these is at the end of this file.
-
- ;; ??? Possibly represent floatunssidf2 here in gcc2.
-
- (define_expand "floatsisf2"
- [(set (match_operand:SF 0 "register_operand" "")
- (float:SF (match_operand:SI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "floatdisf2"
- [(set (match_operand:SF 0 "register_operand" "")
- (float:SF (match_operand:DI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "floatsidf2"
- [(set (match_operand:DF 0 "register_operand" "")
- (float:DF (match_operand:SI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "floatdidf2"
- [(set (match_operand:DF 0 "register_operand" "")
- (float:DF (match_operand:DI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "floatsixf2"
- [(set (match_operand:XF 0 "register_operand" "")
- (float:XF (match_operand:SI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "floatdixf2"
- [(set (match_operand:XF 0 "register_operand" "")
- (float:XF (match_operand:DI 1 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- ;; This will convert from SImode or DImode to MODE_FLOAT.
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (float:XF (match_operand:DI 1 "general_operand" "rm")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (float:DF (match_operand:DI 1 "nonimmediate_operand" "rm")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- (define_insn ""
- [(set (match_operand:SF 0 "register_operand" "=f")
- (float:SF (match_operand:DI 1 "nonimmediate_operand" "rm")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (float:DF (match_operand:SI 1 "nonimmediate_operand" "rm")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f,f")
- (float:XF (match_operand:SI 1 "general_operand" "m,!*r")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- (define_insn ""
- [(set (match_operand:SF 0 "register_operand" "=f")
- (float:SF (match_operand:SI 1 "nonimmediate_operand" "rm")))]
- "TARGET_80387"
- "*
- {
- if (NON_STACK_REG_P (operands[1]))
- {
- output_op_from_reg (operands[1], AS1 (fild%z0,%1));
- RET;
- }
- else if (GET_CODE (operands[1]) == MEM)
- return AS1 (fild%z1,%1);
- else
- abort ();
- }")
-
- ;;- add instructions
-
- (define_insn "adddi3"
- [(set (match_operand:DI 0 "general_operand" "=&r,ro")
- (plus:DI (match_operand:DI 1 "general_operand" "%0,0")
- (match_operand:DI 2 "general_operand" "o,riF")))]
- ""
- "*
- {
- rtx low[3], high[3];
-
- CC_STATUS_INIT;
-
- split_di (operands, 3, low, high);
-
- if (GET_CODE (low[2]) != CONST_INT || INTVAL (low[2]) != 0)
- {
- output_asm_insn (AS2 (add%L0,%2,%0), low);
- output_asm_insn (AS2 (adc%L0,%2,%0), high);
- }
- else
- output_asm_insn (AS2 (add%L0,%2,%0), high);
- RET;
- }")
-
- ;; On a 486, it is faster to do movl/addl than to do a single leal if
- ;; operands[1] and operands[2] are both registers.
-
- (define_insn "addsi3"
- [(set (match_operand:SI 0 "general_operand" "=?r,rm,r")
- (plus:SI (match_operand:SI 1 "general_operand" "%r,0,0")
- (match_operand:SI 2 "general_operand" "ri,ri,rm")))]
- ""
- "*
- {
- if (REG_P (operands[0]) && REGNO (operands[0]) != REGNO (operands[1]))
- {
- if (REG_P (operands[2]) && REGNO (operands[0]) == REGNO (operands[2]))
- return AS2 (add%L0,%1,%0);
-
- if (! TARGET_486 || ! REG_P (operands[2]))
- {
- CC_STATUS_INIT;
-
- if (operands[2] == stack_pointer_rtx)
- {
- rtx temp;
-
- temp = operands[1];
- operands[1] = operands[2];
- operands[2] = temp;
- }
- if (operands[2] != stack_pointer_rtx)
- {
- operands[1] = SET_SRC (PATTERN (insn));
- return AS2 (lea%L0,%a1,%0);
- }
- }
-
- output_asm_insn (AS2 (mov%L0,%1,%0), operands);
- }
-
- if (operands[2] == const1_rtx)
- return AS1 (inc%L0,%0);
-
- if (operands[2] == constm1_rtx)
- return AS1 (dec%L0,%0);
-
- return AS2 (add%L0,%2,%0);
- }")
-
- ;; ??? `lea' here, for three operand add? If leaw is used, only %bx,
- ;; %si and %di can appear in SET_SRC, and output_asm_insn might not be
- ;; able to handle the operand. But leal always works?
-
- (define_insn "addhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm,r")
- (plus:HI (match_operand:HI 1 "general_operand" "%0,0")
- (match_operand:HI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- /* ??? what about offsettable memory references? */
- if (QI_REG_P (operands[0])
- && GET_CODE (operands[2]) == CONST_INT
- && (INTVAL (operands[2]) & 0xff) == 0)
- {
- CC_STATUS_INIT;
-
- operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
-
- if (operands[2] == const1_rtx)
- return AS1 (inc%B0,%h0);
-
- if (operands[2] == constm1_rtx)
- return AS1 (dec%B0,%h0);
-
- return AS2 (add%B0,%2,%h0);
- }
-
- if (operands[2] == const1_rtx)
- return AS1 (inc%W0,%0);
-
- if (operands[2] == constm1_rtx)
- return AS1 (dec%W0,%0);
-
- return AS2 (add%W0,%2,%0);
- }")
-
- (define_insn "addqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm,q")
- (plus:QI (match_operand:QI 1 "general_operand" "%0,0")
- (match_operand:QI 2 "general_operand" "qn,qmn")))]
- ""
- "*
- {
- if (operands[2] == const1_rtx)
- return AS1 (inc%B0,%0);
-
- if (operands[2] == constm1_rtx)
- return AS1 (dec%B0,%0);
-
- return AS2 (add%B0,%2,%0);
- }")
-
- ;Lennart Augustsson <augustss@cs.chalmers.se>
- ;says this pattern just makes slower code:
- ; pushl %ebp
- ; addl $-80,(%esp)
- ;instead of
- ; leal -80(%ebp),%eax
- ; pushl %eax
- ;
- ;(define_insn ""
- ; [(set (match_operand:SI 0 "push_operand" "=<")
- ; (plus:SI (match_operand:SI 1 "general_operand" "%r")
- ; (match_operand:SI 2 "general_operand" "ri")))]
- ; ""
- ; "*
- ;{
- ; rtx xops[4];
- ; xops[0] = operands[0];
- ; xops[1] = operands[1];
- ; xops[2] = operands[2];
- ; xops[3] = gen_rtx (MEM, SImode, stack_pointer_rtx);
- ; output_asm_insn (\"push%z1 %1\", xops);
- ; output_asm_insn (AS2 (add%z3,%2,%3), xops);
- ; RET;
- ;}")
-
- ;; addsi3 is faster, so put this after.
-
- (define_insn ""
- [(set (match_operand:SI 0 "register_operand" "=r")
- (match_operand:QI 1 "address_operand" "p"))]
- ""
- "*
- {
- CC_STATUS_INIT;
- /* Adding a constant to a register is faster with an add. */
- /* ??? can this ever happen? */
- if (GET_CODE (operands[1]) == PLUS
- && GET_CODE (XEXP (operands[1], 1)) == CONST_INT
- && rtx_equal_p (operands[0], XEXP (operands[1], 0)))
- {
- operands[1] = XEXP (operands[1], 1);
-
- if (operands[1] == const1_rtx)
- return AS1 (inc%L0,%0);
-
- if (operands[1] == constm1_rtx)
- return AS1 (dec%L0,%0);
-
- return AS2 (add%L0,%1,%0);
- }
- return AS2 (lea%L0,%a1,%0);
- }")
-
- ;; The patterns that match these are at the end of this file.
-
- (define_expand "addxf3"
- [(set (match_operand:XF 0 "register_operand" "")
- (plus:XF (match_operand:XF 1 "nonimmediate_operand" "")
- (match_operand:XF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "adddf3"
- [(set (match_operand:DF 0 "register_operand" "")
- (plus:DF (match_operand:DF 1 "nonimmediate_operand" "")
- (match_operand:DF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "addsf3"
- [(set (match_operand:SF 0 "register_operand" "")
- (plus:SF (match_operand:SF 1 "nonimmediate_operand" "")
- (match_operand:SF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- ;;- subtract instructions
-
- (define_insn "subdi3"
- [(set (match_operand:DI 0 "general_operand" "=&r,ro")
- (minus:DI (match_operand:DI 1 "general_operand" "0,0")
- (match_operand:DI 2 "general_operand" "o,riF")))]
- ""
- "*
- {
- rtx low[3], high[3];
-
- CC_STATUS_INIT;
-
- split_di (operands, 3, low, high);
-
- if (GET_CODE (low[2]) != CONST_INT || INTVAL (low[2]) != 0)
- {
- output_asm_insn (AS2 (sub%L0,%2,%0), low);
- output_asm_insn (AS2 (sbb%L0,%2,%0), high);
- }
- else
- output_asm_insn (AS2 (sub%L0,%2,%0), high);
-
- RET;
- }")
-
- (define_insn "subsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm,r")
- (minus:SI (match_operand:SI 1 "general_operand" "0,0")
- (match_operand:SI 2 "general_operand" "ri,rm")))]
- ""
- "* return AS2 (sub%L0,%2,%0);")
-
- (define_insn "subhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm,r")
- (minus:HI (match_operand:HI 1 "general_operand" "0,0")
- (match_operand:HI 2 "general_operand" "ri,rm")))]
- ""
- "* return AS2 (sub%W0,%2,%0);")
-
- (define_insn "subqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm,q")
- (minus:QI (match_operand:QI 1 "general_operand" "0,0")
- (match_operand:QI 2 "general_operand" "qn,qmn")))]
- ""
- "* return AS2 (sub%B0,%2,%0);")
-
- ;; The patterns that match these are at the end of this file.
-
- (define_expand "subxf3"
- [(set (match_operand:XF 0 "register_operand" "")
- (minus:XF (match_operand:XF 1 "nonimmediate_operand" "")
- (match_operand:XF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "subdf3"
- [(set (match_operand:DF 0 "register_operand" "")
- (minus:DF (match_operand:DF 1 "nonimmediate_operand" "")
- (match_operand:DF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "subsf3"
- [(set (match_operand:SF 0 "register_operand" "")
- (minus:SF (match_operand:SF 1 "nonimmediate_operand" "")
- (match_operand:SF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- ;;- multiply instructions
-
- ;(define_insn "mulqi3"
- ; [(set (match_operand:QI 0 "general_operand" "=a")
- ; (mult:QI (match_operand:QI 1 "general_operand" "%0")
- ; (match_operand:QI 2 "general_operand" "qm")))]
- ; ""
- ; "imul%B0 %2,%0")
-
- (define_insn ""
- [(set (match_operand:HI 0 "general_operand" "=r")
- (mult:SI (match_operand:HI 1 "general_operand" "%0")
- (match_operand:HI 2 "general_operand" "r")))]
- "GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x80"
- "* return AS2 (imul%W0,%2,%0);")
-
- (define_insn "mulhi3"
- [(set (match_operand:HI 0 "general_operand" "=r,r")
- (mult:SI (match_operand:HI 1 "general_operand" "%0,rm")
- (match_operand:HI 2 "general_operand" "g,i")))]
- ""
- "*
- {
- if (GET_CODE (operands[1]) == REG
- && REGNO (operands[1]) == REGNO (operands[0])
- && (GET_CODE (operands[2]) == MEM || GET_CODE (operands[2]) == REG))
- /* Assembler has weird restrictions. */
- return AS2 (imul%W0,%2,%0);
- return AS3 (imul%W0,%2,%1,%0);
- }")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=r")
- (mult:SI (match_operand:SI 1 "general_operand" "%0")
- (match_operand:SI 2 "general_operand" "r")))]
- "GET_CODE (operands[2]) == CONST_INT && INTVAL (operands[2]) == 0x80"
- "* return AS2 (imul%L0,%2,%0);")
-
- (define_insn "mulsi3"
- [(set (match_operand:SI 0 "general_operand" "=r,r")
- (mult:SI (match_operand:SI 1 "general_operand" "%0,rm")
- (match_operand:SI 2 "general_operand" "g,i")))]
- ""
- "*
- {
- if (GET_CODE (operands[1]) == REG
- && REGNO (operands[1]) == REGNO (operands[0])
- && (GET_CODE (operands[2]) == MEM || GET_CODE (operands[2]) == REG))
- /* Assembler has weird restrictions. */
- return AS2 (imul%L0,%2,%0);
- return AS3 (imul%L0,%2,%1,%0);
- }")
-
- (define_insn ""
- [(set (match_operand:HI 0 "general_operand" "=a")
- (mult:SI (zero_extend:HI
- (match_operand:QI 1 "nonimmediate_operand" "%0"))
- (zero_extend:HI
- (match_operand:QI 2 "nonimmediate_operand" "qm"))))]
- ""
- "mul%B0 %2")
-
- ;; The patterns that match these are at the end of this file.
-
- (define_expand "mulxf3"
- [(set (match_operand:XF 0 "register_operand" "")
- (mult:XF (match_operand:XF 1 "nonimmediate_operand" "")
- (match_operand:XF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "muldf3"
- [(set (match_operand:DF 0 "register_operand" "")
- (mult:DF (match_operand:DF 1 "nonimmediate_operand" "")
- (match_operand:DF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "mulsf3"
- [(set (match_operand:SF 0 "register_operand" "")
- (mult:SF (match_operand:SF 1 "nonimmediate_operand" "")
- (match_operand:SF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- ;;- divide instructions
-
- (define_insn "divqi3"
- [(set (match_operand:QI 0 "general_operand" "=a")
- (div:QI (match_operand:HI 1 "general_operand" "0")
- (match_operand:QI 2 "general_operand" "qm")))]
- ""
- "idiv%B0 %2")
-
- (define_insn "udivqi3"
- [(set (match_operand:QI 0 "general_operand" "=a")
- (udiv:QI (match_operand:HI 1 "general_operand" "0")
- (match_operand:QI 2 "general_operand" "qm")))]
- ""
- "div%B0 %2")
-
- ;; The patterns that match these are at the end of this file.
-
- (define_expand "divxf3"
- [(set (match_operand:XF 0 "register_operand" "")
- (div:XF (match_operand:XF 1 "nonimmediate_operand" "")
- (match_operand:XF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "divdf3"
- [(set (match_operand:DF 0 "register_operand" "")
- (div:DF (match_operand:DF 1 "nonimmediate_operand" "")
- (match_operand:DF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- (define_expand "divsf3"
- [(set (match_operand:SF 0 "register_operand" "")
- (div:SF (match_operand:SF 1 "nonimmediate_operand" "")
- (match_operand:SF 2 "nonimmediate_operand" "")))]
- "TARGET_80387"
- "")
-
- ;; Remainder instructions.
-
- (define_insn "divmodsi4"
- [(set (match_operand:SI 0 "register_operand" "=a")
- (div:SI (match_operand:SI 1 "register_operand" "0")
- (match_operand:SI 2 "general_operand" "rm")))
- (set (match_operand:SI 3 "register_operand" "=&d")
- (mod:SI (match_dup 1) (match_dup 2)))]
- ""
- "*
- {
- #ifdef INTEL_SYNTAX
- output_asm_insn (\"cdq\", operands);
- #else
- output_asm_insn (\"cltd\", operands);
- #endif
- return AS1 (idiv%L0,%2);
- }")
-
- (define_insn "divmodhi4"
- [(set (match_operand:HI 0 "register_operand" "=a")
- (div:HI (match_operand:HI 1 "register_operand" "0")
- (match_operand:HI 2 "general_operand" "rm")))
- (set (match_operand:HI 3 "register_operand" "=&d")
- (mod:HI (match_dup 1) (match_dup 2)))]
- ""
- "cwtd\;idiv%W0 %2")
-
- ;; ??? Can we make gcc zero extend operand[0]?
- (define_insn "udivmodsi4"
- [(set (match_operand:SI 0 "register_operand" "=a")
- (udiv:SI (match_operand:SI 1 "register_operand" "0")
- (match_operand:SI 2 "general_operand" "rm")))
- (set (match_operand:SI 3 "register_operand" "=&d")
- (umod:SI (match_dup 1) (match_dup 2)))]
- ""
- "*
- {
- output_asm_insn (AS2 (xor%L3,%3,%3), operands);
- return AS1 (div%L0,%2);
- }")
-
- ;; ??? Can we make gcc zero extend operand[0]?
- (define_insn "udivmodhi4"
- [(set (match_operand:HI 0 "register_operand" "=a")
- (udiv:HI (match_operand:HI 1 "register_operand" "0")
- (match_operand:HI 2 "general_operand" "rm")))
- (set (match_operand:HI 3 "register_operand" "=&d")
- (umod:HI (match_dup 1) (match_dup 2)))]
- ""
- "*
- {
- output_asm_insn (AS2 (xor%W0,%3,%3), operands);
- return AS1 (div%W0,%2);
- }")
-
- /*
- ;;this should be a valid double division which we may want to add
-
- (define_insn ""
- [(set (match_operand:SI 0 "register_operand" "=a")
- (udiv:DI (match_operand:DI 1 "register_operand" "a")
- (match_operand:SI 2 "general_operand" "rm")))
- (set (match_operand:SI 3 "register_operand" "=d")
- (umod:SI (match_dup 1) (match_dup 2)))]
- ""
- "div%L0 %2,%0")
- */
-
- ;;- and instructions
-
- ;; On i386,
- ;; movzbl %bl,%ebx
- ;; is faster than
- ;; andl $255,%ebx
- ;;
- ;; but if the reg is %eax, then the "andl" is faster.
- ;;
- ;; On i486, the "andl" is always faster than the "movzbl".
- ;;
- ;; On both i386 and i486, a three operand AND is as fast with movzbl or
- ;; movzwl as with andl, if operands[0] != operands[1].
-
- ;; The `r' in `rm' for operand 3 looks redundant, but it causes
- ;; optional reloads to be generated if op 3 is a pseudo in a stack slot.
-
- ;; ??? What if we only change one byte of an offsettable memory reference?
- (define_insn "andsi3"
- [(set (match_operand:SI 0 "general_operand" "=r,r,rm,r")
- (and:SI (match_operand:SI 1 "general_operand" "%rm,qm,0,0")
- (match_operand:SI 2 "general_operand" "L,K,ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- if (INTVAL (operands[2]) == 0xffff && REG_P (operands[0])
- && (! REG_P (operands[1])
- || REGNO (operands[0]) != 0 || REGNO (operands[1]) != 0)
- && (! TARGET_486 || ! rtx_equal_p (operands[0], operands[1])))
- {
- /* ??? tege: Should forget CC_STATUS only if we clobber a
- remembered operand. Fix that later. */
- CC_STATUS_INIT;
- #ifdef INTEL_SYNTAX
- return AS2 (movzx,%w1,%0);
- #else
- return AS2 (movz%W0%L0,%w1,%0);
- #endif
- }
-
- if (INTVAL (operands[2]) == 0xff && REG_P (operands[0])
- && !(REG_P (operands[1]) && NON_QI_REG_P (operands[1]))
- && (! REG_P (operands[1])
- || REGNO (operands[0]) != 0 || REGNO (operands[1]) != 0)
- && (! TARGET_486 || ! rtx_equal_p (operands[0], operands[1])))
- {
- /* ??? tege: Should forget CC_STATUS only if we clobber a
- remembered operand. Fix that later. */
- CC_STATUS_INIT;
- #ifdef INTEL_SYNTAX
- return AS2 (movzx,%b1,%0);
- #else
- return AS2 (movz%B0%L0,%b1,%0);
- #endif
- }
-
- if (QI_REG_P (operands[0]) && ~(INTVAL (operands[2]) | 0xff) == 0)
- {
- CC_STATUS_INIT;
-
- if (INTVAL (operands[2]) == 0xffffff00)
- {
- operands[2] = const0_rtx;
- return AS2 (mov%B0,%2,%b0);
- }
-
- operands[2] = GEN_INT (INTVAL (operands[2]) & 0xff);
- return AS2 (and%B0,%2,%b0);
- }
-
- if (QI_REG_P (operands[0]) && ~(INTVAL (operands[2]) | 0xff00) == 0)
- {
- CC_STATUS_INIT;
-
- if (INTVAL (operands[2]) == 0xffff00ff)
- {
- operands[2] = const0_rtx;
- return AS2 (mov%B0,%2,%h0);
- }
-
- operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
- return AS2 (and%B0,%2,%h0);
- }
-
- if (GET_CODE (operands[0]) == MEM && INTVAL (operands[2]) == 0xffff0000)
- {
- operands[2] = const0_rtx;
- return AS2 (mov%W0,%2,%w0);
- }
- }
-
- return AS2 (and%L0,%2,%0);
- }")
-
- (define_insn "andhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm,r")
- (and:HI (match_operand:HI 1 "general_operand" "%0,0")
- (match_operand:HI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- /* Can we ignore the upper byte? */
- if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
- && (INTVAL (operands[2]) & 0xff00) == 0xff00)
- {
- CC_STATUS_INIT;
-
- if ((INTVAL (operands[2]) & 0xff) == 0)
- {
- operands[2] = const0_rtx;
- return AS2 (mov%B0,%2,%b0);
- }
-
- operands[2] = GEN_INT (INTVAL (operands[2]) & 0xff);
- return AS2 (and%B0,%2,%b0);
- }
-
- /* Can we ignore the lower byte? */
- /* ??? what about offsettable memory references? */
- if (QI_REG_P (operands[0]) && (INTVAL (operands[2]) & 0xff) == 0xff)
- {
- CC_STATUS_INIT;
-
- if ((INTVAL (operands[2]) & 0xff00) == 0)
- {
- operands[2] = const0_rtx;
- return AS2 (mov%B0,%2,%h0);
- }
-
- operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
- return AS2 (and%B0,%2,%h0);
- }
- }
-
- return AS2 (and%W0,%2,%0);
- }")
-
- (define_insn "andqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm,q")
- (and:QI (match_operand:QI 1 "general_operand" "%0,0")
- (match_operand:QI 2 "general_operand" "qn,qmn")))]
- ""
- "* return AS2 (and%B0,%2,%0);")
-
- /* I am nervous about these two.. add them later..
- ;I presume this means that we have something in say op0= eax which is small
- ;and we want to and it with memory so we can do this by just an
- ;andb m,%al and have success.
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=r")
- (and:SI (zero_extend:SI
- (match_operand:HI 1 "nonimmediate_operand" "rm"))
- (match_operand:SI 2 "general_operand" "0")))]
- "GET_CODE (operands[2]) == CONST_INT
- && (unsigned int) INTVAL (operands[2]) < (1 << GET_MODE_BITSIZE (HImode))"
- "and%W0 %1,%0")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=q")
- (and:SI
- (zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "qm"))
- (match_operand:SI 2 "general_operand" "0")))]
- "GET_CODE (operands[2]) == CONST_INT
- && (unsigned int) INTVAL (operands[2]) < (1 << GET_MODE_BITSIZE (QImode))"
- "and%L0 %1,%0")
-
- */
-
- ;;- Bit set (inclusive or) instructions
-
- ;; ??? What if we only change one byte of an offsettable memory reference?
- (define_insn "iorsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm,r")
- (ior:SI (match_operand:SI 1 "general_operand" "%0,0")
- (match_operand:SI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
- && (INTVAL (operands[2]) & ~0xff) == 0)
- {
- CC_STATUS_INIT;
-
- if (INTVAL (operands[2]) == 0xff)
- return AS2 (mov%B0,%2,%b0);
-
- return AS2 (or%B0,%2,%b0);
- }
-
- if (QI_REG_P (operands[0]) && (INTVAL (operands[2]) & ~0xff00) == 0)
- {
- CC_STATUS_INIT;
- operands[2] = GEN_INT (INTVAL (operands[2]) >> 8);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS2 (mov%B0,%2,%h0);
-
- return AS2 (or%B0,%2,%h0);
- }
- }
-
- return AS2 (or%L0,%2,%0);
- }")
-
- (define_insn "iorhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm,r")
- (ior:HI (match_operand:HI 1 "general_operand" "%0,0")
- (match_operand:HI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- /* Can we ignore the upper byte? */
- if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
- && (INTVAL (operands[2]) & 0xff00) == 0)
- {
- CC_STATUS_INIT;
- if (INTVAL (operands[2]) & 0xffff0000)
- operands[2] = GEN_INT (INTVAL (operands[2]) & 0xffff);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS2 (mov%B0,%2,%b0);
-
- return AS2 (or%B0,%2,%b0);
- }
-
- /* Can we ignore the lower byte? */
- /* ??? what about offsettable memory references? */
- if (QI_REG_P (operands[0])
- && (INTVAL (operands[2]) & 0xff) == 0)
- {
- CC_STATUS_INIT;
- operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS2 (mov%B0,%2,%h0);
-
- return AS2 (or%B0,%2,%h0);
- }
- }
-
- return AS2 (or%W0,%2,%0);
- }")
-
- (define_insn "iorqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm,q")
- (ior:QI (match_operand:QI 1 "general_operand" "%0,0")
- (match_operand:QI 2 "general_operand" "qn,qmn")))]
- ""
- "* return AS2 (or%B0,%2,%0);")
-
- ;;- xor instructions
-
- ;; ??? What if we only change one byte of an offsettable memory reference?
- (define_insn "xorsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm,r")
- (xor:SI (match_operand:SI 1 "general_operand" "%0,0")
- (match_operand:SI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
- && (INTVAL (operands[2]) & ~0xff) == 0)
- {
- CC_STATUS_INIT;
-
- if (INTVAL (operands[2]) == 0xff)
- return AS1 (not%B0,%b0);
-
- return AS2 (xor%B0,%2,%b0);
- }
-
- if (QI_REG_P (operands[0]) && (INTVAL (operands[2]) & ~0xff00) == 0)
- {
- CC_STATUS_INIT;
- operands[2] = GEN_INT (INTVAL (operands[2]) >> 8);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS1 (not%B0,%h0);
-
- return AS2 (xor%B0,%2,%h0);
- }
- }
-
- return AS2 (xor%L0,%2,%0);
- }")
-
- (define_insn "xorhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm,r")
- (xor:HI (match_operand:HI 1 "general_operand" "%0,0")
- (match_operand:HI 2 "general_operand" "ri,rm")))]
- ""
- "*
- {
- if (GET_CODE (operands[2]) == CONST_INT
- && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0])))
- {
- /* Can we ignore the upper byte? */
- if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
- && (INTVAL (operands[2]) & 0xff00) == 0)
- {
- CC_STATUS_INIT;
- if (INTVAL (operands[2]) & 0xffff0000)
- operands[2] = GEN_INT (INTVAL (operands[2]) & 0xffff);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS1 (not%B0,%b0);
-
- return AS2 (xor%B0,%2,%b0);
- }
-
- /* Can we ignore the lower byte? */
- /* ??? what about offsettable memory references? */
- if (QI_REG_P (operands[0])
- && (INTVAL (operands[2]) & 0xff) == 0)
- {
- CC_STATUS_INIT;
- operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
-
- if (INTVAL (operands[2]) == 0xff)
- return AS1 (not%B0,%h0);
-
- return AS2 (xor%B0,%2,%h0);
- }
- }
-
- return AS2 (xor%W0,%2,%0);
- }")
-
- (define_insn "xorqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm,q")
- (xor:QI (match_operand:QI 1 "general_operand" "%0,0")
- (match_operand:QI 2 "general_operand" "qn,qm")))]
- ""
- "* return AS2 (xor%B0,%2,%0);")
-
- ;;- negation instructions
-
- (define_insn "negdi2"
- [(set (match_operand:DI 0 "general_operand" "=&ro")
- (neg:DI (match_operand:DI 1 "general_operand" "0")))]
- ""
- "*
- {
- rtx xops[2], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = const0_rtx;
- xops[1] = high[0];
-
- output_asm_insn (AS1 (neg%L0,%0), low);
- output_asm_insn (AS2 (adc%L1,%0,%1), xops);
- output_asm_insn (AS1 (neg%L0,%0), high);
- RET;
- }")
-
- (define_insn "negsi2"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (neg:SI (match_operand:SI 1 "general_operand" "0")))]
- ""
- "neg%L0 %0")
-
- (define_insn "neghi2"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (neg:HI (match_operand:HI 1 "general_operand" "0")))]
- ""
- "neg%W0 %0")
-
- (define_insn "negqi2"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (neg:QI (match_operand:QI 1 "general_operand" "0")))]
- ""
- "neg%B0 %0")
-
- (define_insn "negsf2"
- [(set (match_operand:SF 0 "register_operand" "=f")
- (neg:SF (match_operand:SF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fchs")
-
- (define_insn "negdf2"
- [(set (match_operand:DF 0 "register_operand" "=f")
- (neg:DF (match_operand:DF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fchs")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (neg:DF (float_extend:DF (match_operand:SF 1 "general_operand" "0"))))]
- "TARGET_80387"
- "fchs")
-
- (define_insn "negxf2"
- [(set (match_operand:XF 0 "register_operand" "=f")
- (neg:XF (match_operand:XF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fchs")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (neg:XF (float_extend:XF (match_operand:DF 1 "general_operand" "0"))))]
- "TARGET_80387"
- "fchs")
-
- ;; Absolute value instructions
-
- (define_insn "abssf2"
- [(set (match_operand:SF 0 "register_operand" "=f")
- (abs:SF (match_operand:SF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fabs")
-
- (define_insn "absdf2"
- [(set (match_operand:DF 0 "register_operand" "=f")
- (abs:DF (match_operand:DF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fabs")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (abs:DF (float_extend:DF (match_operand:SF 1 "general_operand" "0"))))]
- "TARGET_80387"
- "fabs")
-
- (define_insn "absxf2"
- [(set (match_operand:XF 0 "register_operand" "=f")
- (abs:XF (match_operand:XF 1 "general_operand" "0")))]
- "TARGET_80387"
- "fabs")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (abs:XF (float_extend:XF (match_operand:DF 1 "general_operand" "0"))))]
- "TARGET_80387"
- "fabs")
-
- (define_insn "sqrtsf2"
- [(set (match_operand:SF 0 "register_operand" "=f")
- (sqrt:SF (match_operand:SF 1 "general_operand" "0")))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn "sqrtdf2"
- [(set (match_operand:DF 0 "register_operand" "=f")
- (sqrt:DF (match_operand:DF 1 "general_operand" "0")))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (sqrt:DF (float_extend:DF
- (match_operand:SF 1 "general_operand" "0"))))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn "sqrtxf2"
- [(set (match_operand:XF 0 "register_operand" "=f")
- (sqrt:XF (match_operand:XF 1 "general_operand" "0")))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (sqrt:XF (float_extend:XF
- (match_operand:DF 1 "general_operand" "0"))))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (sqrt:XF (float_extend:XF
- (match_operand:SF 1 "general_operand" "0"))))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsqrt")
-
- (define_insn "sindf2"
- [(set (match_operand:DF 0 "register_operand" "=f")
- (unspec:DF [(match_operand:DF 1 "register_operand" "0")] 1))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsin")
-
- (define_insn "sinsf2"
- [(set (match_operand:SF 0 "register_operand" "=f")
- (unspec:SF [(match_operand:SF 1 "register_operand" "0")] 1))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsin")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (unspec:DF [(float_extend:DF
- (match_operand:SF 1 "register_operand" "0"))] 1))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fsin")
-
- (define_insn "cosdf2"
- [(set (match_operand:DF 0 "register_operand" "=f")
- (unspec:DF [(match_operand:DF 1 "register_operand" "0")] 2))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fcos")
-
- (define_insn "cossf2"
- [(set (match_operand:SF 0 "register_operand" "=f")
- (unspec:SF [(match_operand:SF 1 "register_operand" "0")] 2))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fcos")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (unspec:DF [(float_extend:DF
- (match_operand:SF 1 "register_operand" "0"))] 2))]
- "TARGET_80387 && (TARGET_IEEE_FP || flag_fast_math)"
- "fcos")
-
- ;;- one complement instructions
-
- (define_insn "one_cmplsi2"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (not:SI (match_operand:SI 1 "general_operand" "0")))]
- ""
- "not%L0 %0")
-
- (define_insn "one_cmplhi2"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (not:HI (match_operand:HI 1 "general_operand" "0")))]
- ""
- "not%W0 %0")
-
- (define_insn "one_cmplqi2"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (not:QI (match_operand:QI 1 "general_operand" "0")))]
- ""
- "not%B0 %0")
-
- ;;- arithmetic shift instructions
-
- ;; DImode shifts are implemented using the i386 "shift double" opcode,
- ;; which is written as "sh[lr]d[lw] imm,reg,reg/mem". If the shift count
- ;; is variable, then the count is in %cl and the "imm" operand is dropped
- ;; from the assembler input.
-
- ;; This instruction shifts the target reg/mem as usual, but instead of
- ;; shifting in zeros, bits are shifted in from reg operand. If the insn
- ;; is a left shift double, bits are taken from the high order bits of
- ;; reg, else if the insn is a shift right double, bits are taken from the
- ;; low order bits of reg. So if %eax is "1234" and %edx is "5678",
- ;; "shldl $8,%edx,%eax" leaves %edx unchanged and sets %eax to "2345".
-
- ;; Since sh[lr]d does not change the `reg' operand, that is done
- ;; separately, making all shifts emit pairs of shift double and normal
- ;; shift. Since sh[lr]d does not shift more than 31 bits, and we wish to
- ;; support a 63 bit shift, each shift where the count is in a reg expands
- ;; to three pairs. If the overall shift is by N bits, then the first two
- ;; pairs shift by N / 2 and the last pair by N & 1.
-
- ;; If the shift count is a constant, we need never emit more than one
- ;; shift pair, instead using moves and sign extension for counts greater
- ;; than 31.
-
- (define_expand "ashldi3"
- [(set (match_operand:DI 0 "register_operand" "")
- (ashift:DI (match_operand:DI 1 "register_operand" "")
- (match_operand:QI 2 "nonmemory_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[2]) != CONST_INT
- || ! CONST_OK_FOR_LETTER_P (INTVAL (operands[2]), 'J'))
- {
- operands[2] = copy_to_mode_reg (QImode, operands[2]);
- emit_insn (gen_ashldi3_non_const_int (operands[0], operands[1],
- operands[2]));
- }
- else
- emit_insn (gen_ashldi3_const_int (operands[0], operands[1], operands[2]));
-
- DONE;
- }")
-
- (define_insn "ashldi3_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (ashift:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "const_int_operand" "J")))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- if (INTVAL (xops[0]) > 31)
- {
- output_asm_insn (AS2 (mov%L3,%2,%3), xops); /* Fast shift by 32 */
- output_asm_insn (AS2 (xor%L2,%2,%2), xops);
-
- if (INTVAL (xops[0]) > 32)
- {
- xops[0] = GEN_INT (INTVAL (xops[0]) - 32);
- output_asm_insn (AS2 (sal%L3,%0,%3), xops); /* Remaining shift */
- }
- }
- else
- {
- output_asm_insn (AS3 (shld%L3,%0,%2,%3), xops);
- output_asm_insn (AS2 (sal%L2,%0,%2), xops);
- }
- RET;
- }")
-
- (define_insn "ashldi3_non_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (ashift:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "register_operand" "c")))
- (clobber (match_dup 2))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- output_asm_insn (AS2 (ror%B0,%1,%0), xops); /* shift count / 2 */
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shld%L3,%0,%2,%3), xops);
- output_asm_insn (AS2 (sal%L2,%0,%2), xops);
- output_asm_insn (AS3_SHIFT_DOUBLE (shld%L3,%0,%2,%3), xops);
- output_asm_insn (AS2 (sal%L2,%0,%2), xops);
-
- xops[1] = GEN_INT (7); /* shift count & 1 */
-
- output_asm_insn (AS2 (shr%B0,%1,%0), xops);
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shld%L3,%0,%2,%3), xops);
- output_asm_insn (AS2 (sal%L2,%0,%2), xops);
-
- RET;
- }")
-
- ;; On i386 and i486, "addl reg,reg" is faster than "sall $1,reg"
- ;; On i486, movl/sall appears slightly faster than leal, but the leal
- ;; is smaller - use leal for now unless the shift count is 1.
-
- (define_insn "ashlsi3"
- [(set (match_operand:SI 0 "general_operand" "=r,rm")
- (ashift:SI (match_operand:SI 1 "general_operand" "r,0")
- (match_operand:SI 2 "nonmemory_operand" "M,cI")))]
- ""
- "*
- {
- if (REG_P (operands[0]) && REGNO (operands[0]) != REGNO (operands[1]))
- {
- if (TARGET_486 && INTVAL (operands[2]) == 1)
- {
- output_asm_insn (AS2 (mov%L0,%1,%0), operands);
- return AS2 (add%L0,%1,%0);
- }
- else
- {
- CC_STATUS_INIT;
-
- if (operands[1] == stack_pointer_rtx)
- {
- output_asm_insn (AS2 (mov%L0,%1,%0), operands);
- operands[1] = operands[0];
- }
- operands[1] = gen_rtx (MULT, SImode, operands[1],
- GEN_INT (1 << INTVAL (operands[2])));
- return AS2 (lea%L0,%a1,%0);
- }
- }
-
- if (REG_P (operands[2]))
- return AS2 (sal%L0,%b2,%0);
-
- if (REG_P (operands[0]) && operands[2] == const1_rtx)
- return AS2 (add%L0,%0,%0);
-
- return AS2 (sal%L0,%2,%0);
- }")
-
- (define_insn "ashlhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (ashift:HI (match_operand:HI 1 "general_operand" "0")
- (match_operand:HI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (sal%W0,%b2,%0);
-
- if (REG_P (operands[0]) && operands[2] == const1_rtx)
- return AS2 (add%W0,%0,%0);
-
- return AS2 (sal%W0,%2,%0);
- }")
-
- (define_insn "ashlqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (ashift:QI (match_operand:QI 1 "general_operand" "0")
- (match_operand:QI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (sal%B0,%b2,%0);
-
- if (REG_P (operands[0]) && operands[2] == const1_rtx)
- return AS2 (add%B0,%0,%0);
-
- return AS2 (sal%B0,%2,%0);
- }")
-
- ;; See comment above `ashldi3' about how this works.
-
- (define_expand "ashrdi3"
- [(set (match_operand:DI 0 "register_operand" "")
- (ashiftrt:DI (match_operand:DI 1 "register_operand" "")
- (match_operand:QI 2 "nonmemory_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[2]) != CONST_INT
- || ! CONST_OK_FOR_LETTER_P (INTVAL (operands[2]), 'J'))
- {
- operands[2] = copy_to_mode_reg (QImode, operands[2]);
- emit_insn (gen_ashrdi3_non_const_int (operands[0], operands[1],
- operands[2]));
- }
- else
- emit_insn (gen_ashrdi3_const_int (operands[0], operands[1], operands[2]));
-
- DONE;
- }")
-
- (define_insn "ashrdi3_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (ashiftrt:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "const_int_operand" "J")))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- if (INTVAL (xops[0]) > 31)
- {
- xops[1] = GEN_INT (31);
- output_asm_insn (AS2 (mov%L2,%3,%2), xops);
- output_asm_insn (AS2 (sar%L3,%1,%3), xops); /* shift by 32 */
-
- if (INTVAL (xops[0]) > 32)
- {
- xops[0] = GEN_INT (INTVAL (xops[0]) - 32);
- output_asm_insn (AS2 (sar%L2,%0,%2), xops); /* Remaining shift */
- }
- }
- else
- {
- output_asm_insn (AS3 (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (sar%L3,%0,%3), xops);
- }
-
- RET;
- }")
-
- (define_insn "ashrdi3_non_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (ashiftrt:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "register_operand" "c")))
- (clobber (match_dup 2))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- output_asm_insn (AS2 (ror%B0,%1,%0), xops); /* shift count / 2 */
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (sar%L3,%0,%3), xops);
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (sar%L3,%0,%3), xops);
-
- xops[1] = GEN_INT (7); /* shift count & 1 */
-
- output_asm_insn (AS2 (shr%B0,%1,%0), xops);
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (sar%L3,%0,%3), xops);
-
- RET;
- }")
-
- (define_insn "ashrsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (ashiftrt:SI (match_operand:SI 1 "general_operand" "0")
- (match_operand:SI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (sar%L0,%b2,%0);
- else
- return AS2 (sar%L0,%2,%0);
- }")
-
- (define_insn "ashrhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (ashiftrt:HI (match_operand:HI 1 "general_operand" "0")
- (match_operand:HI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (sar%W0,%b2,%0);
- else
- return AS2 (sar%W0,%2,%0);
- }")
-
- (define_insn "ashrqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (ashiftrt:QI (match_operand:QI 1 "general_operand" "0")
- (match_operand:QI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (sar%B0,%b2,%0);
- else
- return AS2 (sar%B0,%2,%0);
- }")
-
- ;;- logical shift instructions
-
- ;; See comment above `ashldi3' about how this works.
-
- (define_expand "lshrdi3"
- [(set (match_operand:DI 0 "register_operand" "")
- (lshiftrt:DI (match_operand:DI 1 "register_operand" "")
- (match_operand:QI 2 "nonmemory_operand" "")))]
- ""
- "
- {
- if (GET_CODE (operands[2]) != CONST_INT
- || ! CONST_OK_FOR_LETTER_P (INTVAL (operands[2]), 'J'))
- {
- operands[2] = copy_to_mode_reg (QImode, operands[2]);
- emit_insn (gen_lshrdi3_non_const_int (operands[0], operands[1],
- operands[2]));
- }
- else
- emit_insn (gen_lshrdi3_const_int (operands[0], operands[1], operands[2]));
-
- DONE;
- }")
-
- (define_insn "lshrdi3_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (lshiftrt:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "const_int_operand" "J")))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- if (INTVAL (xops[0]) > 31)
- {
- output_asm_insn (AS2 (mov%L2,%3,%2), xops); /* Fast shift by 32 */
- output_asm_insn (AS2 (xor%L3,%3,%3), xops);
-
- if (INTVAL (xops[0]) > 32)
- {
- xops[0] = GEN_INT (INTVAL (xops[0]) - 32);
- output_asm_insn (AS2 (shr%L2,%0,%2), xops); /* Remaining shift */
- }
- }
- else
- {
- output_asm_insn (AS3 (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (shr%L3,%0,%3), xops);
- }
-
- RET;
- }")
-
- (define_insn "lshrdi3_non_const_int"
- [(set (match_operand:DI 0 "register_operand" "=&r")
- (lshiftrt:DI (match_operand:DI 1 "register_operand" "0")
- (match_operand:QI 2 "register_operand" "c")))
- (clobber (match_dup 2))]
- ""
- "*
- {
- rtx xops[4], low[1], high[1];
-
- CC_STATUS_INIT;
-
- split_di (operands, 1, low, high);
- xops[0] = operands[2];
- xops[1] = const1_rtx;
- xops[2] = low[0];
- xops[3] = high[0];
-
- output_asm_insn (AS2 (ror%B0,%1,%0), xops); /* shift count / 2 */
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (shr%L3,%0,%3), xops);
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (shr%L3,%0,%3), xops);
-
- xops[1] = GEN_INT (7); /* shift count & 1 */
-
- output_asm_insn (AS2 (shr%B0,%1,%0), xops);
-
- output_asm_insn (AS3_SHIFT_DOUBLE (shrd%L2,%0,%3,%2), xops);
- output_asm_insn (AS2 (shr%L3,%0,%3), xops);
-
- RET;
- }")
-
- (define_insn "lshrsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (lshiftrt:SI (match_operand:SI 1 "general_operand" "0")
- (match_operand:SI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (shr%L0,%b2,%0);
- else
- return AS2 (shr%L0,%2,%1);
- }")
-
- (define_insn "lshrhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (lshiftrt:HI (match_operand:HI 1 "general_operand" "0")
- (match_operand:HI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (shr%W0,%b2,%0);
- else
- return AS2 (shr%W0,%2,%0);
- }")
-
- (define_insn "lshrqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (lshiftrt:QI (match_operand:QI 1 "general_operand" "0")
- (match_operand:QI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (shr%B0,%b2,%0);
- else
- return AS2 (shr%B0,%2,%0);
- }")
-
- ;;- rotate instructions
-
- (define_insn "rotlsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (rotate:SI (match_operand:SI 1 "general_operand" "0")
- (match_operand:SI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (rol%L0,%b2,%0);
- else
- return AS2 (rol%L0,%2,%0);
- }")
-
- (define_insn "rotlhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (rotate:HI (match_operand:HI 1 "general_operand" "0")
- (match_operand:HI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (rol%W0,%b2,%0);
- else
- return AS2 (rol%W0,%2,%0);
- }")
-
- (define_insn "rotlqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (rotate:QI (match_operand:QI 1 "general_operand" "0")
- (match_operand:QI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (rol%B0,%b2,%0);
- else
- return AS2 (rol%B0,%2,%0);
- }")
-
- (define_insn "rotrsi3"
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (rotatert:SI (match_operand:SI 1 "general_operand" "0")
- (match_operand:SI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (ror%L0,%b2,%0);
- else
- return AS2 (ror%L0,%2,%0);
- }")
-
- (define_insn "rotrhi3"
- [(set (match_operand:HI 0 "general_operand" "=rm")
- (rotatert:HI (match_operand:HI 1 "general_operand" "0")
- (match_operand:HI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (ror%W0,%b2,%0);
- else
- return AS2 (ror%W0,%2,%0);
- }")
-
- (define_insn "rotrqi3"
- [(set (match_operand:QI 0 "general_operand" "=qm")
- (rotatert:QI (match_operand:QI 1 "general_operand" "0")
- (match_operand:QI 2 "nonmemory_operand" "cI")))]
- ""
- "*
- {
- if (REG_P (operands[2]))
- return AS2 (ror%B0,%b2,%0);
- else
- return AS2 (ror%B0,%2,%0);
- }")
-
- /*
- ;; This usually looses. But try a define_expand to recognize a few case
- ;; we can do efficiently, such as accessing the "high" QImode registers,
- ;; %ah, %bh, %ch, %dh.
- (define_insn "insv"
- [(set (zero_extract:SI (match_operand:SI 0 "register_operand" "+&r")
- (match_operand:SI 1 "general_operand" "i")
- (match_operand:SI 2 "general_operand" "i"))
- (match_operand:SI 3 "general_operand" "ri"))]
- ""
- "*
- {
- if (INTVAL (operands[1]) + INTVAL (operands[2]) > GET_MODE_BITSIZE (SImode))
- abort ();
- if (GET_CODE (operands[3]) == CONST_INT)
- {
- unsigned int mask = (1 << INTVAL (operands[1])) - 1;
- operands[1] = GEN_INT (~(mask << INTVAL (operands[2])));
- output_asm_insn (AS2 (and%L0,%1,%0), operands);
- operands[3] = GEN_INT (INTVAL (operands[3]) << INTVAL (operands[2]));
- output_asm_insn (AS2 (or%L0,%3,%0), operands);
- }
- else
- {
- operands[0] = gen_rtx (REG, SImode, REGNO (operands[0]));
- if (INTVAL (operands[2]))
- output_asm_insn (AS2 (ror%L0,%2,%0), operands);
- output_asm_insn (AS3 (shrd%L0,%1,%3,%0), operands);
- operands[2] = GEN_INT (BITS_PER_WORD
- - INTVAL (operands[1]) - INTVAL (operands[2]));
- if (INTVAL (operands[2]))
- output_asm_insn (AS2 (ror%L0,%2,%0), operands);
- }
- RET;
- }")
- */
- /*
- ;; ??? There are problems with the mode of operand[3]. The point of this
- ;; is to represent an HImode move to a "high byte" register.
-
- (define_expand "insv"
- [(set (zero_extract:SI (match_operand:SI 0 "general_operand" "")
- (match_operand:SI 1 "immediate_operand" "")
- (match_operand:SI 2 "immediate_operand" ""))
- (match_operand:QI 3 "general_operand" "ri"))]
- ""
- "
- {
- if (GET_CODE (operands[1]) != CONST_INT
- || GET_CODE (operands[2]) != CONST_INT)
- FAIL;
-
- if (! (INTVAL (operands[1]) == 8
- && (INTVAL (operands[2]) == 8 || INTVAL (operands[2]) == 0))
- && ! INTVAL (operands[1]) == 1)
- FAIL;
- }")
-
- ;; ??? Are these constraints right?
- (define_insn ""
- [(set (zero_extract:SI (match_operand:SI 0 "general_operand" "+&qo")
- (const_int 8)
- (const_int 8))
- (match_operand:QI 1 "general_operand" "qn"))]
- ""
- "*
- {
- if (REG_P (operands[0]))
- return AS2 (mov%B0,%1,%h0);
-
- operands[0] = adj_offsettable_operand (operands[0], 1);
- return AS2 (mov%B0,%1,%0);
- }")
- */
-
- ;; On i386, the register count for a bit operation is *not* truncated,
- ;; so SHIFT_COUNT_TRUNCATED must not be defined.
-
- ;; On i486, the shift & or/and code is faster than bts or btr. If
- ;; operands[0] is a MEM, the bt[sr] is half as fast as the normal code.
-
- ;; On i386, bts is a little faster if operands[0] is a reg, and a
- ;; little slower if operands[0] is a MEM, than the shift & or/and code.
- ;; Use bts & btr, since they reload better.
-
- ;; General bit set and clear.
- (define_insn ""
- [(set (zero_extract:SI (match_operand:SI 0 "general_operand" "+rm")
- (const_int 1)
- (match_operand:SI 2 "general_operand" "r"))
- (match_operand:SI 3 "const_int_operand" "n"))]
- "! TARGET_486 && GET_CODE (operands[2]) != CONST_INT"
- "*
- {
- CC_STATUS_INIT;
-
- if (INTVAL (operands[3]) == 1)
- return AS2 (bts%L0,%2,%0);
- else
- return AS2 (btr%L0,%2,%0);
- }")
-
- ;; Bit complement. See comments on previous pattern.
- ;; ??? Is this really worthwhile?
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (xor:SI (ashift:SI (const_int 1)
- (match_operand:SI 1 "general_operand" "r"))
- (match_operand:SI 2 "general_operand" "0")))]
- "! TARGET_486 && GET_CODE (operands[1]) != CONST_INT"
- "*
- {
- CC_STATUS_INIT;
-
- return AS2 (btc%L0,%1,%0);
- }")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=rm")
- (xor:SI (match_operand:SI 1 "general_operand" "0")
- (ashift:SI (const_int 1)
- (match_operand:SI 2 "general_operand" "r"))))]
- "! TARGET_486 && GET_CODE (operands[2]) != CONST_INT"
- "*
- {
- CC_STATUS_INIT;
-
- return AS2 (btc%L0,%2,%0);
- }")
-
- ;; Recognizers for bit-test instructions.
-
- ;; The bt opcode allows a MEM in operands[0]. But on both i386 and
- ;; i486, it is faster to copy a MEM to REG and then use bt, than to use
- ;; bt on the MEM directly.
-
- ;; ??? The first argument of a zero_extract must not be reloaded, so
- ;; don't allow a MEM in the operand predicate without allowing it in the
- ;; constraint.
-
- (define_insn ""
- [(set (cc0) (zero_extract (match_operand:SI 0 "register_operand" "r")
- (const_int 1)
- (match_operand:SI 1 "general_operand" "r")))]
- "GET_CODE (operands[1]) != CONST_INT"
- "*
- {
- cc_status.flags |= CC_Z_IN_NOT_C;
- return AS2 (bt%L0,%1,%0);
- }")
-
- (define_insn ""
- [(set (cc0) (zero_extract (match_operand:SI 0 "register_operand" "r")
- (match_operand:SI 1 "const_int_operand" "n")
- (match_operand:SI 2 "const_int_operand" "n")))]
- ""
- "*
- {
- unsigned int mask;
-
- mask = ((1 << INTVAL (operands[1])) - 1) << INTVAL (operands[2]);
- operands[1] = GEN_INT (mask);
-
- if (QI_REG_P (operands[0]))
- {
- if ((mask & ~0xff) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- return AS2 (test%B0,%1,%b0);
- }
-
- if ((mask & ~0xff00) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (mask >> 8);
- return AS2 (test%B0,%1,%h0);
- }
- }
-
- return AS2 (test%L0,%1,%0);
- }")
-
- ;; ??? All bets are off if operand 0 is a volatile MEM reference.
- ;; The CPU may access unspecified bytes around the actual target byte.
-
- (define_insn ""
- [(set (cc0) (zero_extract (match_operand:QI 0 "general_operand" "rm")
- (match_operand:SI 1 "const_int_operand" "n")
- (match_operand:SI 2 "const_int_operand" "n")))]
- "GET_CODE (operands[0]) != MEM || ! MEM_VOLATILE_P (operands[0])"
- "*
- {
- unsigned int mask;
-
- mask = ((1 << INTVAL (operands[1])) - 1) << INTVAL (operands[2]);
- operands[1] = GEN_INT (mask);
-
- if (! REG_P (operands[0]) || QI_REG_P (operands[0]))
- {
- if ((mask & ~0xff) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- return AS2 (test%B0,%1,%b0);
- }
-
- if ((mask & ~0xff00) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (mask >> 8);
-
- if (QI_REG_P (operands[0]))
- return AS2 (test%B0,%1,%h0);
- else
- {
- operands[0] = adj_offsettable_operand (operands[0], 1);
- return AS2 (test%B0,%1,%b0);
- }
- }
-
- if (GET_CODE (operands[0]) == MEM && (mask & ~0xff0000) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (mask >> 16);
- operands[0] = adj_offsettable_operand (operands[0], 2);
- return AS2 (test%B0,%1,%b0);
- }
-
- if (GET_CODE (operands[0]) == MEM && (mask & ~0xff000000) == 0)
- {
- cc_status.flags |= CC_NOT_NEGATIVE;
- operands[1] = GEN_INT (mask >> 24);
- operands[0] = adj_offsettable_operand (operands[0], 3);
- return AS2 (test%B0,%1,%b0);
- }
- }
-
- if (CONSTANT_P (operands[1]) || GET_CODE (operands[0]) == MEM)
- return AS2 (test%L0,%1,%0);
-
- return AS2 (test%L1,%0,%1);
- }")
-
- ;; Store-flag instructions.
-
- ;; For all sCOND expanders, also expand the compare or test insn that
- ;; generates cc0. Generate an equality comparison if `seq' or `sne'.
-
- ;; The 386 sCOND opcodes can write to memory. But a gcc sCOND insn may
- ;; not have any input reloads. A MEM write might need an input reload
- ;; for the address of the MEM. So don't allow MEM as the SET_DEST.
-
- (define_expand "seq"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (eq:QI (cc0) (const_int 0)))]
- ""
- "
- {
- if (TARGET_IEEE_FP
- && GET_MODE_CLASS (GET_MODE (i386_compare_op0)) == MODE_FLOAT)
- operands[1] = (*i386_compare_gen_eq)(i386_compare_op0, i386_compare_op1);
- else
- operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
- }")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (eq:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return AS1 (setnb,%0);
- else
- return AS1 (sete,%0);
- }")
-
- (define_expand "sne"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (ne:QI (cc0) (const_int 0)))]
- ""
- "
- {
- if (TARGET_IEEE_FP
- && GET_MODE_CLASS (GET_MODE (i386_compare_op0)) == MODE_FLOAT)
- operands[1] = (*i386_compare_gen_eq)(i386_compare_op0, i386_compare_op1);
- else
- operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
- }")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (ne:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return AS1 (setb,%0);
- else
- return AS1 (setne,%0);
- }
- ")
-
- (define_expand "sgt"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (gt:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (gt:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (sete,%0);
-
- OUTPUT_JUMP (\"setg %0\", \"seta %0\", NULL_PTR);
- }")
-
- (define_expand "sgtu"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (gtu:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (gtu:QI (cc0) (const_int 0)))]
- ""
- "* return \"seta %0\"; ")
-
- (define_expand "slt"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (lt:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (lt:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (sete,%0);
-
- OUTPUT_JUMP (\"setl %0\", \"setb %0\", \"sets %0\");
- }")
-
- (define_expand "sltu"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (ltu:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (ltu:QI (cc0) (const_int 0)))]
- ""
- "* return \"setb %0\"; ")
-
- (define_expand "sge"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (ge:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (ge:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (sete,%0);
-
- OUTPUT_JUMP (\"setge %0\", \"setae %0\", \"setns %0\");
- }")
-
- (define_expand "sgeu"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (geu:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (geu:QI (cc0) (const_int 0)))]
- ""
- "* return \"setae %0\"; ")
-
- (define_expand "sle"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (le:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (le:QI (cc0) (const_int 0)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (setb,%0);
-
- OUTPUT_JUMP (\"setle %0\", \"setbe %0\", NULL_PTR);
- }")
-
- (define_expand "sleu"
- [(match_dup 1)
- (set (match_operand:QI 0 "register_operand" "")
- (leu:QI (cc0) (const_int 0)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (match_operand:QI 0 "register_operand" "=q")
- (leu:QI (cc0) (const_int 0)))]
- ""
- "* return \"setbe %0\"; ")
-
- ;; Basic conditional jump instructions.
- ;; We ignore the overflow flag for signed branch instructions.
-
- ;; For all bCOND expanders, also expand the compare or test insn that
- ;; generates cc0. Generate an equality comparison if `beq' or `bne'.
-
- (define_expand "beq"
- [(match_dup 1)
- (set (pc)
- (if_then_else (eq (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "
- {
- if (TARGET_IEEE_FP
- && GET_MODE_CLASS (GET_MODE (i386_compare_op0)) == MODE_FLOAT)
- operands[1] = (*i386_compare_gen_eq)(i386_compare_op0, i386_compare_op1);
- else
- operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (eq (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return \"jnc %l0\";
- else
- return \"je %l0\";
- }")
-
- (define_expand "bne"
- [(match_dup 1)
- (set (pc)
- (if_then_else (ne (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "
- {
- if (TARGET_IEEE_FP
- && GET_MODE_CLASS (GET_MODE (i386_compare_op0)) == MODE_FLOAT)
- operands[1] = (*i386_compare_gen_eq)(i386_compare_op0, i386_compare_op1);
- else
- operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ne (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return \"jc %l0\";
- else
- return \"jne %l0\";
- }")
-
- (define_expand "bgt"
- [(match_dup 1)
- (set (pc)
- (if_then_else (gt (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (gt (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (je,%l0);
-
- OUTPUT_JUMP (\"jg %l0\", \"ja %l0\", NULL_PTR);
- }")
-
- (define_expand "bgtu"
- [(match_dup 1)
- (set (pc)
- (if_then_else (gtu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (gtu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "ja %l0")
-
- (define_expand "blt"
- [(match_dup 1)
- (set (pc)
- (if_then_else (lt (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (lt (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (je,%l0);
-
- OUTPUT_JUMP (\"jl %l0\", \"jb %l0\", \"js %l0\");
- }")
-
- (define_expand "bltu"
- [(match_dup 1)
- (set (pc)
- (if_then_else (ltu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ltu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "jb %l0")
-
- (define_expand "bge"
- [(match_dup 1)
- (set (pc)
- (if_then_else (ge (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ge (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (je,%l0);
-
- OUTPUT_JUMP (\"jge %l0\", \"jae %l0\", \"jns %l0\");
- }")
-
- (define_expand "bgeu"
- [(match_dup 1)
- (set (pc)
- (if_then_else (geu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (geu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "jae %l0")
-
- (define_expand "ble"
- [(match_dup 1)
- (set (pc)
- (if_then_else (le (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (le (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (jb,%l0);
-
- OUTPUT_JUMP (\"jle %l0\", \"jbe %l0\", NULL_PTR);
- }")
-
- (define_expand "bleu"
- [(match_dup 1)
- (set (pc)
- (if_then_else (leu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (leu (cc0)
- (const_int 0))
- (label_ref (match_operand 0 "" ""))
- (pc)))]
- ""
- "jbe %l0")
-
- ;; Negated conditional jump instructions.
-
- (define_insn ""
- [(set (pc)
- (if_then_else (eq (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return \"jc %l0\";
- else
- return \"jne %l0\";
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ne (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (cc_prev_status.flags & CC_Z_IN_NOT_C)
- return \"jnc %l0\";
- else
- return \"je %l0\";
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (gt (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (jne,%l0);
-
- OUTPUT_JUMP (\"jle %l0\", \"jbe %l0\", NULL_PTR);
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (gtu (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "jbe %l0")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (lt (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (jne,%l0);
-
- OUTPUT_JUMP (\"jge %l0\", \"jae %l0\", \"jns %l0\");
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ltu (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "jae %l0")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (ge (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (jne,%l0);
-
- OUTPUT_JUMP (\"jl %l0\", \"jb %l0\", \"js %l0\");
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (geu (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "jb %l0")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (le (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "*
- {
- if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387))
- return AS1 (jae,%l0);
-
- OUTPUT_JUMP (\"jg %l0\", \"ja %l0\", NULL_PTR);
- }")
-
- (define_insn ""
- [(set (pc)
- (if_then_else (leu (cc0)
- (const_int 0))
- (pc)
- (label_ref (match_operand 0 "" ""))))]
- ""
- "ja %l0")
-
- ;; Unconditional and other jump instructions
-
- (define_insn "jump"
- [(set (pc)
- (label_ref (match_operand 0 "" "")))]
- ""
- "jmp %l0")
-
- (define_insn "indirect_jump"
- [(set (pc) (match_operand:SI 0 "general_operand" "rm"))]
- ""
- "*
- {
- CC_STATUS_INIT;
-
- return AS1 (jmp,%*%0);
- }")
-
- ;; Implement switch statements when generating PIC code. Switches are
- ;; implemented by `tablejump' when not using -fpic.
-
- ;; Emit code here to do the range checking and make the index zero based.
-
- (define_expand "casesi"
- [(set (match_dup 5)
- (minus:SI (match_operand:SI 0 "general_operand" "")
- (match_operand:SI 1 "general_operand" "")))
- (set (cc0)
- (compare:CC (match_dup 5)
- (match_operand:SI 2 "general_operand" "")))
- (set (pc)
- (if_then_else (gtu (cc0)
- (const_int 0))
- (label_ref (match_operand 4 "" ""))
- (pc)))
- (parallel
- [(set (pc)
- (minus:SI (reg:SI 3)
- (mem:SI (plus:SI (mult:SI (match_dup 5)
- (const_int 4))
- (label_ref (match_operand 3 "" ""))))))
- (clobber (match_scratch:SI 6 ""))])]
- "flag_pic"
- "
- {
- operands[5] = gen_reg_rtx (SImode);
- current_function_uses_pic_offset_table = 1;
- }")
-
- ;; Implement a casesi insn.
-
- ;; Each entry in the "addr_diff_vec" looks like this as the result of the
- ;; two rules below:
- ;;
- ;; .long _GLOBAL_OFFSET_TABLE_+[.-.L2]
- ;;
- ;; 1. An expression involving an external reference may only use the
- ;; addition operator, and only with an assembly-time constant.
- ;; The example above satisfies this because ".-.L2" is a constant.
- ;;
- ;; 2. The symbol _GLOBAL_OFFSET_TABLE_ is magic, and at link time is
- ;; given the value of "GOT - .", where GOT is the actual address of
- ;; the Global Offset Table. Therefore, the .long above actually
- ;; stores the value "( GOT - . ) + [ . - .L2 ]", or "GOT - .L2". The
- ;; expression "GOT - .L2" by itself would generate an error from as(1).
- ;;
- ;; The pattern below emits code that looks like this:
- ;;
- ;; movl %ebx,reg
- ;; subl TABLE@GOTOFF(%ebx,index,4),reg
- ;; jmp reg
- ;;
- ;; The addr_diff_vec contents may be directly referenced with @GOTOFF, since
- ;; the addr_diff_vec is known to be part of this module.
- ;;
- ;; The subl above calculates "GOT - (( GOT - . ) + [ . - .L2 ])", which
- ;; evaluates to just ".L2".
-
- (define_insn ""
- [(set (pc)
- (minus:SI (reg:SI 3)
- (mem:SI (plus:SI
- (mult:SI (match_operand:SI 0 "register_operand" "r")
- (const_int 4))
- (label_ref (match_operand 1 "" ""))))))
- (clobber (match_scratch:SI 2 "=&r"))]
- ""
- "*
- {
- rtx xops[4];
-
- xops[0] = operands[0];
- xops[1] = operands[1];
- xops[2] = operands[2];
- xops[3] = pic_offset_table_rtx;
-
- output_asm_insn (AS2 (mov%L2,%3,%2), xops);
- output_asm_insn (\"sub%L2 %l1@GOTOFF(%3,%0,4),%2\", xops);
- output_asm_insn (AS1 (jmp,%*%2), xops);
- ASM_OUTPUT_ALIGN_CODE (asm_out_file);
- RET;
- }")
-
- (define_insn "tablejump"
- [(set (pc) (match_operand:SI 0 "general_operand" "rm"))
- (use (label_ref (match_operand 1 "" "")))]
- ""
- "*
- {
- CC_STATUS_INIT;
-
- return AS1 (jmp,%*%0);
- }")
-
- ;; Call insns.
-
- ;; If generating PIC code, the predicate indirect_operand will fail
- ;; for operands[0] containing symbolic references on all of the named
- ;; call* patterns. Each named pattern is followed by an unnamed pattern
- ;; that matches any call to a symbolic CONST (ie, a symbol_ref). The
- ;; unnamed patterns are only used while generating PIC code, because
- ;; otherwise the named patterns match.
-
- ;; Call subroutine returning no value.
-
- (define_expand "call_pop"
- [(parallel [(call (match_operand:QI 0 "indirect_operand" "")
- (match_operand:SI 1 "general_operand" ""))
- (set (reg:SI 7)
- (plus:SI (reg:SI 7)
- (match_operand:SI 3 "immediate_operand" "")))])]
- ""
- "
- {
- rtx addr;
-
- if (flag_pic)
- current_function_uses_pic_offset_table = 1;
-
- /* With half-pic, force the address into a register. */
- addr = XEXP (operands[0], 0);
- if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
- XEXP (operands[0], 0) = force_reg (Pmode, addr);
-
- if (! expander_call_insn_operand (operands[0], QImode))
- operands[0]
- = change_address (operands[0], VOIDmode,
- copy_to_mode_reg (Pmode, XEXP (operands[0], 0)));
- }")
-
- (define_insn ""
- [(call (match_operand:QI 0 "call_insn_operand" "m")
- (match_operand:SI 1 "general_operand" "g"))
- (set (reg:SI 7) (plus:SI (reg:SI 7)
- (match_operand:SI 3 "immediate_operand" "i")))]
- ""
- "*
- {
- if (GET_CODE (operands[0]) == MEM
- && ! CONSTANT_ADDRESS_P (XEXP (operands[0], 0)))
- {
- operands[0] = XEXP (operands[0], 0);
- return AS1 (call,%*%0);
- }
- else
- return AS1 (call,%P0);
- }")
-
- (define_insn ""
- [(call (mem:QI (match_operand:SI 0 "symbolic_operand" ""))
- (match_operand:SI 1 "general_operand" "g"))
- (set (reg:SI 7) (plus:SI (reg:SI 7)
- (match_operand:SI 3 "immediate_operand" "i")))]
- "!HALF_PIC_P ()"
- "call %P0")
-
- (define_expand "call"
- [(call (match_operand:QI 0 "indirect_operand" "")
- (match_operand:SI 1 "general_operand" ""))]
- ;; Operand 1 not used on the i386.
- ""
- "
- {
- rtx addr;
-
- if (flag_pic)
- current_function_uses_pic_offset_table = 1;
-
- /* With half-pic, force the address into a register. */
- addr = XEXP (operands[0], 0);
- if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
- XEXP (operands[0], 0) = force_reg (Pmode, addr);
-
- if (! expander_call_insn_operand (operands[0], QImode))
- operands[0]
- = change_address (operands[0], VOIDmode,
- copy_to_mode_reg (Pmode, XEXP (operands[0], 0)));
- }")
-
- (define_insn ""
- [(call (match_operand:QI 0 "call_insn_operand" "m")
- (match_operand:SI 1 "general_operand" "g"))]
- ;; Operand 1 not used on the i386.
- ""
- "*
- {
- if (GET_CODE (operands[0]) == MEM
- && ! CONSTANT_ADDRESS_P (XEXP (operands[0], 0)))
- {
- operands[0] = XEXP (operands[0], 0);
- return AS1 (call,%*%0);
- }
- else
- return AS1 (call,%P0);
- }")
-
- (define_insn ""
- [(call (mem:QI (match_operand:SI 0 "symbolic_operand" ""))
- (match_operand:SI 1 "general_operand" "g"))]
- ;; Operand 1 not used on the i386.
- "!HALF_PIC_P ()"
- "call %P0")
-
- ;; Call subroutine, returning value in operand 0
- ;; (which must be a hard register).
-
- (define_expand "call_value_pop"
- [(parallel [(set (match_operand 0 "" "")
- (call (match_operand:QI 1 "indirect_operand" "")
- (match_operand:SI 2 "general_operand" "")))
- (set (reg:SI 7)
- (plus:SI (reg:SI 7)
- (match_operand:SI 4 "immediate_operand" "")))])]
- ""
- "
- {
- rtx addr;
-
- if (flag_pic)
- current_function_uses_pic_offset_table = 1;
-
- /* With half-pic, force the address into a register. */
- addr = XEXP (operands[1], 0);
- if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
- XEXP (operands[1], 0) = force_reg (Pmode, addr);
-
- if (! expander_call_insn_operand (operands[1], QImode))
- operands[1]
- = change_address (operands[1], VOIDmode,
- copy_to_mode_reg (Pmode, XEXP (operands[1], 0)));
- }")
-
- (define_insn ""
- [(set (match_operand 0 "" "=rf")
- (call (match_operand:QI 1 "call_insn_operand" "m")
- (match_operand:SI 2 "general_operand" "g")))
- (set (reg:SI 7) (plus:SI (reg:SI 7)
- (match_operand:SI 4 "immediate_operand" "i")))]
- ""
- "*
- {
- if (GET_CODE (operands[1]) == MEM
- && ! CONSTANT_ADDRESS_P (XEXP (operands[1], 0)))
- {
- operands[1] = XEXP (operands[1], 0);
- output_asm_insn (AS1 (call,%*%1), operands);
- }
- else
- output_asm_insn (AS1 (call,%P1), operands);
-
- RET;
- }")
-
- (define_insn ""
- [(set (match_operand 0 "" "=rf")
- (call (mem:QI (match_operand:SI 1 "symbolic_operand" ""))
- (match_operand:SI 2 "general_operand" "g")))
- (set (reg:SI 7) (plus:SI (reg:SI 7)
- (match_operand:SI 4 "immediate_operand" "i")))]
- "!HALF_PIC_P ()"
- "call %P1")
-
- (define_expand "call_value"
- [(set (match_operand 0 "" "")
- (call (match_operand:QI 1 "indirect_operand" "")
- (match_operand:SI 2 "general_operand" "")))]
- ;; Operand 2 not used on the i386.
- ""
- "
- {
- rtx addr;
-
- if (flag_pic)
- current_function_uses_pic_offset_table = 1;
-
- /* With half-pic, force the address into a register. */
- addr = XEXP (operands[1], 0);
- if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
- XEXP (operands[1], 0) = force_reg (Pmode, addr);
-
- if (! expander_call_insn_operand (operands[1], QImode))
- operands[1]
- = change_address (operands[1], VOIDmode,
- copy_to_mode_reg (Pmode, XEXP (operands[1], 0)));
- }")
-
- (define_insn ""
- [(set (match_operand 0 "" "=rf")
- (call (match_operand:QI 1 "call_insn_operand" "m")
- (match_operand:SI 2 "general_operand" "g")))]
- ;; Operand 2 not used on the i386.
- ""
- "*
- {
- if (GET_CODE (operands[1]) == MEM
- && ! CONSTANT_ADDRESS_P (XEXP (operands[1], 0)))
- {
- operands[1] = XEXP (operands[1], 0);
- output_asm_insn (AS1 (call,%*%1), operands);
- }
- else
- output_asm_insn (AS1 (call,%P1), operands);
-
- RET;
- }")
-
- (define_insn ""
- [(set (match_operand 0 "" "=rf")
- (call (mem:QI (match_operand:SI 1 "symbolic_operand" ""))
- (match_operand:SI 2 "general_operand" "g")))]
- ;; Operand 2 not used on the i386.
- "!HALF_PIC_P ()"
- "call %P1")
-
- (define_expand "untyped_call"
- [(parallel [(call (match_operand:QI 0 "indirect_operand" "")
- (const_int 0))
- (match_operand:BLK 1 "memory_operand" "")
- (match_operand 2 "" "")])]
- ""
- "
- {
- rtx addr;
-
- if (flag_pic)
- current_function_uses_pic_offset_table = 1;
-
- /* With half-pic, force the address into a register. */
- addr = XEXP (operands[0], 0);
- if (GET_CODE (addr) != REG && HALF_PIC_P () && !CONSTANT_ADDRESS_P (addr))
- XEXP (operands[0], 0) = force_reg (Pmode, addr);
-
- operands[1] = change_address (operands[1], DImode, XEXP (operands[1], 0));
- if (! expander_call_insn_operand (operands[1], QImode))
- operands[1]
- = change_address (operands[1], VOIDmode,
- copy_to_mode_reg (Pmode, XEXP (operands[1], 0)));
- }")
-
- (define_insn ""
- [(call (match_operand:QI 0 "call_insn_operand" "m")
- (const_int 0))
- (match_operand:DI 1 "memory_operand" "o")
- (match_operand 2 "" "")]
- ""
- "*
- {
- rtx addr = operands[1];
-
- if (GET_CODE (operands[0]) == MEM
- && ! CONSTANT_ADDRESS_P (XEXP (operands[0], 0)))
- {
- operands[0] = XEXP (operands[0], 0);
- output_asm_insn (AS1 (call,%*%0), operands);
- }
- else
- output_asm_insn (AS1 (call,%P0), operands);
-
- operands[2] = gen_rtx (REG, SImode, 0);
- output_asm_insn (AS2 (mov%L2,%2,%1), operands);
-
- operands[2] = gen_rtx (REG, SImode, 1);
- operands[1] = adj_offsettable_operand (addr, 4);
- output_asm_insn (AS2 (mov%L2,%2,%1), operands);
-
- operands[1] = adj_offsettable_operand (addr, 8);
- return AS1 (fnsave,%1);
- }")
-
- (define_insn ""
- [(call (mem:QI (match_operand:SI 0 "symbolic_operand" ""))
- (const_int 0))
- (match_operand:DI 1 "memory_operand" "o")
- (match_operand 2 "" "")]
- "!HALF_PIC_P ()"
- "*
- {
- rtx addr = operands[1];
-
- output_asm_insn (AS1 (call,%P0), operands);
-
- operands[2] = gen_rtx (REG, SImode, 0);
- output_asm_insn (AS2 (mov%L2,%2,%1), operands);
-
- operands[2] = gen_rtx (REG, SImode, 1);
- operands[1] = adj_offsettable_operand (addr, 4);
- output_asm_insn (AS2 (mov%L2,%2,%1), operands);
-
- operands[1] = adj_offsettable_operand (addr, 8);
- return AS1 (fnsave,%1);
- }")
-
- ;; We use fnsave and frstor to save and restore the floating point result.
- ;; These are expensive instructions and require a large space to save the
- ;; FPU state. An more complicated alternative is to use fnstenv to store
- ;; the FPU environment and test whether the stack top is valid. Store the
- ;; result of the test, and if it is valid, pop and save the value. The
- ;; untyped_return would check the test and optionally push the saved value.
-
- (define_expand "untyped_return"
- [(match_operand:BLK 0 "memory_operand" "")
- (match_operand 1 "" "")]
- ""
- "
- {
- rtx valreg1 = gen_rtx (REG, SImode, 0);
- rtx valreg2 = gen_rtx (REG, SImode, 1);
- rtx result = operands[0];
-
- /* Restore the FPU state. */
- emit_insn (gen_update_return (change_address (result, SImode,
- plus_constant (XEXP (result, 0),
- 8))));
-
- /* Reload the function value registers. */
- emit_move_insn (valreg1, change_address (result, SImode, XEXP (result, 0)));
- emit_move_insn (valreg2,
- change_address (result, SImode,
- plus_constant (XEXP (result, 0), 4)));
-
- /* Put USE insns before the return. */
- emit_insn (gen_rtx (USE, VOIDmode, valreg1));
- emit_insn (gen_rtx (USE, VOIDmode, valreg2));
-
- /* Construct the return. */
- expand_null_return ();
-
- DONE;
- }")
-
- (define_insn "update_return"
- [(unspec:SI [(match_operand:SI 0 "memory_operand" "m")] 0)]
- ""
- "frstor %0")
-
- ;; Insn emitted into the body of a function to return from a function.
- ;; This is only done if the function's epilogue is known to be simple.
- ;; See comments for simple_386_epilogue in i386.c.
-
- (define_insn "return"
- [(return)]
- "simple_386_epilogue ()"
- "*
- {
- function_epilogue (asm_out_file, get_frame_size ());
- RET;
- }")
-
- (define_insn "nop"
- [(const_int 0)]
- ""
- "nop")
-
- (define_expand "movstrsi"
- [(parallel [(set (match_operand:BLK 0 "memory_operand" "")
- (match_operand:BLK 1 "memory_operand" ""))
- (use (match_operand:SI 2 "const_int_operand" ""))
- (use (match_operand:SI 3 "const_int_operand" ""))
- (clobber (match_scratch:SI 4 ""))
- (clobber (match_dup 5))
- (clobber (match_dup 6))])]
- ""
- "
- {
- rtx addr0, addr1;
-
- if (GET_CODE (operands[2]) != CONST_INT)
- FAIL;
-
- addr0 = copy_to_mode_reg (Pmode, XEXP (operands[0], 0));
- addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0));
-
- operands[5] = addr0;
- operands[6] = addr1;
-
- operands[0] = gen_rtx (MEM, BLKmode, addr0);
- operands[1] = gen_rtx (MEM, BLKmode, addr1);
- }")
-
- ;; It might seem that operands 0 & 1 could use predicate register_operand.
- ;; But strength reduction might offset the MEM expression. So we let
- ;; reload put the address into %edi & %esi.
-
- (define_insn ""
- [(set (mem:BLK (match_operand:SI 0 "address_operand" "D"))
- (mem:BLK (match_operand:SI 1 "address_operand" "S")))
- (use (match_operand:SI 2 "const_int_operand" "n"))
- (use (match_operand:SI 3 "immediate_operand" "i"))
- (clobber (match_scratch:SI 4 "=&c"))
- (clobber (match_dup 0))
- (clobber (match_dup 1))]
- ""
- "*
- {
- rtx xops[2];
-
- output_asm_insn (\"cld\", operands);
- if (GET_CODE (operands[2]) == CONST_INT)
- {
- if (INTVAL (operands[2]) & ~0x03)
- {
- xops[0] = GEN_INT ((INTVAL (operands[2]) >> 2) & 0x3fffffff);
- xops[1] = operands[4];
-
- output_asm_insn (AS2 (mov%L1,%0,%1), xops);
- #ifdef INTEL_SYNTAX
- output_asm_insn (\"rep movsd\", xops);
- #else
- output_asm_insn (\"rep\;movsl\", xops);
- #endif
- }
- if (INTVAL (operands[2]) & 0x02)
- output_asm_insn (\"movsw\", operands);
- if (INTVAL (operands[2]) & 0x01)
- output_asm_insn (\"movsb\", operands);
- }
- else
- abort ();
- RET;
- }")
-
- (define_expand "cmpstrsi"
- [(parallel [(set (match_operand:SI 0 "general_operand" "")
- (compare:SI (match_operand:BLK 1 "general_operand" "")
- (match_operand:BLK 2 "general_operand" "")))
- (use (match_operand:SI 3 "general_operand" ""))
- (use (match_operand:SI 4 "immediate_operand" ""))
- (clobber (match_dup 5))
- (clobber (match_dup 6))
- (clobber (match_dup 3))])]
- ""
- "
- {
- rtx addr1, addr2;
-
- addr1 = copy_to_mode_reg (Pmode, XEXP (operands[1], 0));
- addr2 = copy_to_mode_reg (Pmode, XEXP (operands[2], 0));
- operands[3] = copy_to_mode_reg (SImode, operands[3]);
-
- operands[5] = addr1;
- operands[6] = addr2;
-
- operands[1] = gen_rtx (MEM, BLKmode, addr1);
- operands[2] = gen_rtx (MEM, BLKmode, addr2);
-
- }")
-
- ;; memcmp recognizers. The `cmpsb' opcode does nothing if the count is
- ;; zero. Emit extra code to make sure that a zero-length compare is EQ.
-
- ;; It might seem that operands 0 & 1 could use predicate register_operand.
- ;; But strength reduction might offset the MEM expression. So we let
- ;; reload put the address into %edi & %esi.
-
- ;; ??? Most comparisons have a constant length, and it's therefore
- ;; possible to know that the length is non-zero, and to avoid the extra
- ;; code to handle zero-length compares.
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=&r")
- (compare:SI (mem:BLK (match_operand:SI 1 "address_operand" "S"))
- (mem:BLK (match_operand:SI 2 "address_operand" "D"))))
- (use (match_operand:SI 3 "register_operand" "c"))
- (use (match_operand:SI 4 "immediate_operand" "i"))
- (clobber (match_dup 1))
- (clobber (match_dup 2))
- (clobber (match_dup 3))]
- ""
- "*
- {
- rtx xops[4], label;
-
- label = gen_label_rtx ();
-
- output_asm_insn (\"cld\", operands);
- output_asm_insn (AS2 (xor%L0,%0,%0), operands);
- output_asm_insn (\"repz\;cmps%B2\", operands);
- output_asm_insn (\"je %l0\", &label);
-
- xops[0] = operands[0];
- xops[1] = gen_rtx (MEM, QImode,
- gen_rtx (PLUS, SImode, operands[1], constm1_rtx));
- xops[2] = gen_rtx (MEM, QImode,
- gen_rtx (PLUS, SImode, operands[2], constm1_rtx));
- xops[3] = operands[3];
-
- output_asm_insn (AS2 (movz%B1%L0,%1,%0), xops);
- output_asm_insn (AS2 (movz%B2%L3,%2,%3), xops);
-
- output_asm_insn (AS2 (sub%L0,%3,%0), xops);
- ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, \"L\", CODE_LABEL_NUMBER (label));
- RET;
- }")
-
- (define_insn ""
- [(set (cc0)
- (compare:SI (mem:BLK (match_operand:SI 0 "address_operand" "S"))
- (mem:BLK (match_operand:SI 1 "address_operand" "D"))))
- (use (match_operand:SI 2 "register_operand" "c"))
- (use (match_operand:SI 3 "immediate_operand" "i"))
- (clobber (match_dup 0))
- (clobber (match_dup 1))
- (clobber (match_dup 2))]
- ""
- "*
- {
- rtx xops[2];
-
- cc_status.flags |= CC_NOT_SIGNED;
-
- xops[0] = gen_rtx (REG, QImode, 0);
- xops[1] = CONST0_RTX (QImode);
-
- output_asm_insn (\"cld\", operands);
- output_asm_insn (AS2 (test%B0,%1,%0), xops);
- return \"repz\;cmps%B2\";
- }")
-
- (define_expand "ffssi2"
- [(set (match_dup 2)
- (plus:SI (ffs:SI (match_operand:SI 1 "general_operand" ""))
- (const_int -1)))
- (set (match_operand:SI 0 "general_operand" "")
- (plus:SI (match_dup 2) (const_int 1)))]
- ""
- "operands[2] = gen_reg_rtx (SImode);")
-
- (define_insn ""
- [(set (match_operand:SI 0 "general_operand" "=&r")
- (plus:SI (ffs:SI (match_operand:SI 1 "general_operand" "rm"))
- (const_int -1)))]
- ""
- "*
- {
- rtx xops[3];
- static int ffssi_label_number;
- char buffer[30];
-
- xops[0] = operands[0];
- xops[1] = operands[1];
- xops[2] = constm1_rtx;
- /* Can there be a way to avoid the jump here? */
- output_asm_insn (AS2 (bsf%L0,%1,%0), xops);
- #ifdef LOCAL_LABEL_PREFIX
- sprintf (buffer, \"jnz %sLFFSSI%d\",
- LOCAL_LABEL_PREFIX, ffssi_label_number);
- #else
- sprintf (buffer, \"jnz %sLFFSSI%d\",
- \"\", ffssi_label_number);
- #endif
- output_asm_insn (buffer, xops);
- output_asm_insn (AS2 (mov%L0,%2,%0), xops);
- #ifdef LOCAL_LABEL_PREFIX
- sprintf (buffer, \"%sLFFSSI%d:\",
- LOCAL_LABEL_PREFIX, ffssi_label_number);
- #else
- sprintf (buffer, \"%sLFFSSI%d:\",
- \"\", ffssi_label_number);
- #endif
- output_asm_insn (buffer, xops);
-
- ffssi_label_number++;
- return \"\";
- }")
-
- (define_expand "ffshi2"
- [(set (match_dup 2)
- (plus:HI (ffs:HI (match_operand:HI 1 "general_operand" ""))
- (const_int -1)))
- (set (match_operand:HI 0 "general_operand" "")
- (plus:HI (match_dup 2) (const_int 1)))]
- ""
- "operands[2] = gen_reg_rtx (HImode);")
-
- (define_insn ""
- [(set (match_operand:HI 0 "general_operand" "=&r")
- (plus:HI (ffs:HI (match_operand:SI 1 "general_operand" "rm"))
- (const_int -1)))]
- ""
- "*
- {
- rtx xops[3];
- static int ffshi_label_number;
- char buffer[30];
-
- xops[0] = operands[0];
- xops[1] = operands[1];
- xops[2] = constm1_rtx;
- output_asm_insn (AS2 (bsf%W0,%1,%0), xops);
- #ifdef LOCAL_LABEL_PREFIX
- sprintf (buffer, \"jnz %sLFFSHI%d\",
- LOCAL_LABEL_PREFIX, ffshi_label_number);
- #else
- sprintf (buffer, \"jnz %sLFFSHI%d\",
- \"\", ffshi_label_number);
- #endif
- output_asm_insn (buffer, xops);
- output_asm_insn (AS2 (mov%W0,%2,%0), xops);
- #ifdef LOCAL_LABEL_PREFIX
- sprintf (buffer, \"%sLFFSHI%d:\",
- LOCAL_LABEL_PREFIX, ffshi_label_number);
- #else
- sprintf (buffer, \"%sLFFSHI%d:\",
- \"\", ffshi_label_number);
- #endif
- output_asm_insn (buffer, xops);
-
- ffshi_label_number++;
- return \"\";
- }")
-
- ;; These patterns match the binary 387 instructions for addM3, subM3,
- ;; mulM3 and divM3. There are three patterns for each of DFmode and
- ;; SFmode. The first is the normal insn, the second the same insn but
- ;; with one operand a conversion, and the third the same insn but with
- ;; the other operand a conversion. The conversion may be SFmode or
- ;; SImode if the target mode DFmode, but only SImode if the target mode
- ;; is SFmode.
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f,f")
- (match_operator:DF 3 "binary_387_op"
- [(match_operand:DF 1 "nonimmediate_operand" "0,fm")
- (match_operand:DF 2 "nonimmediate_operand" "fm,0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (match_operator:DF 3 "binary_387_op"
- [(float:DF (match_operand:SI 1 "general_operand" "rm"))
- (match_operand:DF 2 "general_operand" "0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f,f")
- (match_operator:XF 3 "binary_387_op"
- [(match_operand:XF 1 "nonimmediate_operand" "0,f")
- (match_operand:XF 2 "nonimmediate_operand" "f,0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (match_operator:XF 3 "binary_387_op"
- [(float:XF (match_operand:SI 1 "general_operand" "rm"))
- (match_operand:XF 2 "general_operand" "0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f,f")
- (match_operator:XF 3 "binary_387_op"
- [(float_extend:XF (match_operand:SF 1 "general_operand" "fm,0"))
- (match_operand:XF 2 "general_operand" "0,f")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f")
- (match_operator:XF 3 "binary_387_op"
- [(match_operand:XF 1 "general_operand" "0")
- (float:XF (match_operand:SI 2 "general_operand" "rm"))]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:XF 0 "register_operand" "=f,f")
- (match_operator:XF 3 "binary_387_op"
- [(match_operand:XF 1 "general_operand" "0,f")
- (float_extend:XF
- (match_operand:SF 2 "general_operand" "fm,0"))]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f,f")
- (match_operator:DF 3 "binary_387_op"
- [(float_extend:DF (match_operand:SF 1 "general_operand" "fm,0"))
- (match_operand:DF 2 "general_operand" "0,f")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f")
- (match_operator:DF 3 "binary_387_op"
- [(match_operand:DF 1 "general_operand" "0")
- (float:DF (match_operand:SI 2 "general_operand" "rm"))]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:DF 0 "register_operand" "=f,f")
- (match_operator:DF 3 "binary_387_op"
- [(match_operand:DF 1 "general_operand" "0,f")
- (float_extend:DF
- (match_operand:SF 2 "general_operand" "fm,0"))]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:SF 0 "register_operand" "=f,f")
- (match_operator:SF 3 "binary_387_op"
- [(match_operand:SF 1 "nonimmediate_operand" "0,fm")
- (match_operand:SF 2 "nonimmediate_operand" "fm,0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:SF 0 "register_operand" "=f")
- (match_operator:SF 3 "binary_387_op"
- [(float:SF (match_operand:SI 1 "general_operand" "rm"))
- (match_operand:SF 2 "general_operand" "0")]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_insn ""
- [(set (match_operand:SF 0 "register_operand" "=f")
- (match_operator:SF 3 "binary_387_op"
- [(match_operand:SF 1 "general_operand" "0")
- (float:SF (match_operand:SI 2 "general_operand" "rm"))]))]
- "TARGET_80387"
- "* return (char *) output_387_binary_op (insn, operands);")
-
- (define_expand "strlensi"
- [(parallel [(set (match_dup 4)
- (unspec:SI [(mem:BLK (match_operand:BLK 1 "general_operand" ""))
- (match_operand:QI 2 "register_operand" "")
- (match_operand:SI 3 "immediate_operand" "")] 0))
- (clobber (match_dup 1))])
- (set (match_dup 5)
- (not:SI (match_dup 4)))
- (set (match_operand:SI 0 "register_operand" "")
- (minus:SI (match_dup 5)
- (const_int 1)))]
- ""
- "
- {
- operands[1] = copy_to_mode_reg (SImode, XEXP (operands[1], 0));
- operands[4] = gen_reg_rtx (SImode);
- operands[5] = gen_reg_rtx (SImode);
- }")
-
- ;; It might seem that operands 0 & 1 could use predicate register_operand.
- ;; But strength reduction might offset the MEM expression. So we let
- ;; reload put the address into %edi.
-
- (define_insn ""
- [(set (match_operand:SI 0 "register_operand" "=&c")
- (unspec:SI [(mem:BLK (match_operand:SI 1 "address_operand" "D"))
- (match_operand:QI 2 "register_operand" "a")
- (match_operand:SI 3 "immediate_operand" "i")] 0))
- (clobber (match_dup 1))]
- ""
- "*
- {
- rtx xops[2];
-
- xops[0] = operands[0];
- xops[1] = constm1_rtx;
- output_asm_insn (\"cld\", operands);
- output_asm_insn (AS2 (mov%L0,%1,%0), xops);
- return \"repnz\;scas%B2\";
- }")
-