"#")
(define_split
- [(set (reg FLAGS_REG)
- (compare (zero_extract
- (match_operand 0 "nonimmediate_operand" "")
- (match_operand 1 "const_int_operand" "")
- (match_operand 2 "const_int_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(zero_extract
+ (match_operand 2 "nonimmediate_operand" "")
+ (match_operand 3 "const_int_operand" "")
+ (match_operand 4 "const_int_operand" ""))
+ (const_int 0)]))]
"ix86_match_ccmode (insn, CCNOmode)"
- [(set (reg:CCNO FLAGS_REG) (compare:CCNO (match_dup 3) (const_int 0)))]
+ [(set (match_dup 0) (match_op_dup 1 [(match_dup 2) (const_int 0)]))]
{
- HOST_WIDE_INT len = INTVAL (operands[1]);
- HOST_WIDE_INT pos = INTVAL (operands[2]);
+ rtx val = operands[2];
+ HOST_WIDE_INT len = INTVAL (operands[3]);
+ HOST_WIDE_INT pos = INTVAL (operands[4]);
HOST_WIDE_INT mask;
enum machine_mode mode, submode;
- mode = GET_MODE (operands[0]);
- if (GET_CODE (operands[0]) == MEM)
+ mode = GET_MODE (val);
+ if (GET_CODE (val) == MEM)
{
/* ??? Combine likes to put non-volatile mem extractions in QImode
no matter the size of the test. So find a mode that works. */
- if (! MEM_VOLATILE_P (operands[0]))
+ if (! MEM_VOLATILE_P (val))
{
mode = smallest_mode_for_size (pos + len, MODE_INT);
- operands[0] = adjust_address (operands[0], mode, 0);
+ val = adjust_address (val, mode, 0);
}
}
- else if (GET_CODE (operands[0]) == SUBREG
- && (submode = GET_MODE (SUBREG_REG (operands[0])),
+ else if (GET_CODE (val) == SUBREG
+ && (submode = GET_MODE (SUBREG_REG (val)),
GET_MODE_BITSIZE (mode) > GET_MODE_BITSIZE (submode))
&& pos + len <= GET_MODE_BITSIZE (submode))
{
/* Narrow a paradoxical subreg to prevent partial register stalls. */
mode = submode;
- operands[0] = SUBREG_REG (operands[0]);
+ val = SUBREG_REG (val);
}
else if (mode == HImode && pos + len <= 8)
{
/* Small HImode tests can be converted to QImode. */
mode = QImode;
- operands[0] = gen_lowpart (QImode, operands[0]);
+ val = gen_lowpart (QImode, val);
}
mask = ((HOST_WIDE_INT)1 << (pos + len)) - 1;
mask &= ~(((HOST_WIDE_INT)1 << pos) - 1);
- operands[3] = gen_rtx_AND (mode, operands[0], gen_int_mode (mask, mode));
+ operands[2] = gen_rtx_AND (mode, val, gen_int_mode (mask, mode));
})
;; Convert HImode/SImode test instructions with immediate to QImode ones.
;; Do the conversion only post-reload to avoid limiting of the register class
;; to QI regs.
(define_split
- [(set (reg FLAGS_REG)
- (compare
- (and (match_operand 0 "register_operand" "")
- (match_operand 1 "const_int_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and (match_operand 2 "register_operand" "")
+ (match_operand 3 "const_int_operand" ""))
+ (const_int 0)]))]
"reload_completed
- && QI_REG_P (operands[0])
+ && QI_REG_P (operands[2])
+ && GET_MODE (operands[2]) != QImode
&& ((ix86_match_ccmode (insn, CCZmode)
- && !(INTVAL (operands[1]) & ~(255 << 8)))
+ && !(INTVAL (operands[3]) & ~(255 << 8)))
|| (ix86_match_ccmode (insn, CCNOmode)
- && !(INTVAL (operands[1]) & ~(127 << 8))))
- && GET_MODE (operands[0]) != QImode"
- [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO
- (and:SI (zero_extract:SI (match_dup 0) (const_int 8) (const_int 8))
- (match_dup 1))
- (const_int 0)))]
- "operands[0] = gen_lowpart (SImode, operands[0]);
- operands[1] = gen_int_mode (INTVAL (operands[1]) >> 8, SImode);")
+ && !(INTVAL (operands[3]) & ~(127 << 8))))"
+ [(set (match_dup 0)
+ (match_op_dup 1
+ [(and:SI (zero_extract:SI (match_dup 2) (const_int 8) (const_int 8))
+ (match_dup 3))
+ (const_int 0)]))]
+ "operands[2] = gen_lowpart (SImode, operands[2]);
+ operands[3] = gen_int_mode (INTVAL (operands[3]) >> 8, SImode);")
(define_split
- [(set (reg FLAGS_REG)
- (compare
- (and (match_operand 0 "nonimmediate_operand" "")
- (match_operand 1 "const_int_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and (match_operand 2 "nonimmediate_operand" "")
+ (match_operand 3 "const_int_operand" ""))
+ (const_int 0)]))]
"reload_completed
- && (!REG_P (operands[0]) || ANY_QI_REG_P (operands[0]))
+ && GET_MODE (operands[2]) != QImode
+ && (!REG_P (operands[2]) || ANY_QI_REG_P (operands[2]))
&& ((ix86_match_ccmode (insn, CCZmode)
- && !(INTVAL (operands[1]) & ~255))
+ && !(INTVAL (operands[3]) & ~255))
|| (ix86_match_ccmode (insn, CCNOmode)
- && !(INTVAL (operands[1]) & ~127)))
- && GET_MODE (operands[0]) != QImode"
- [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO
- (and:QI (match_dup 0)
- (match_dup 1))
- (const_int 0)))]
- "operands[0] = gen_lowpart (QImode, operands[0]);
- operands[1] = gen_lowpart (QImode, operands[1]);")
+ && !(INTVAL (operands[3]) & ~127)))"
+ [(set (match_dup 0)
+ (match_op_dup 1 [(and:QI (match_dup 2) (match_dup 3))
+ (const_int 0)]))]
+ "operands[2] = gen_lowpart (QImode, operands[2]);
+ operands[3] = gen_lowpart (QImode, operands[3]);")
;; %%% This used to optimize known byte-wide and operations to memory,
(set_attr "mode" "DI")])
(define_split
- [(set (reg FLAGS_REG)
- (compare (not:DI (match_operand:DI 1 "nonimmediate_operand" ""))
- (const_int 0)))
- (set (match_operand:DI 0 "nonimmediate_operand" "")
- (not:DI (match_dup 1)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(not:DI (match_operand:DI 3 "nonimmediate_operand" ""))
+ (const_int 0)]))
+ (set (match_operand:DI 1 "nonimmediate_operand" "")
+ (not:DI (match_dup 3)))]
"TARGET_64BIT && ix86_match_ccmode (insn, CCNOmode)"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (xor:DI (match_dup 1) (const_int -1))
- (const_int 0)))
- (set (match_dup 0)
- (xor:DI (match_dup 1) (const_int -1)))])]
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2
+ [(xor:DI (match_dup 3) (const_int -1))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (xor:DI (match_dup 3) (const_int -1)))])]
"")
(define_expand "one_cmplsi2"
(set_attr "mode" "SI")])
(define_split
- [(set (reg FLAGS_REG)
- (compare (not:SI (match_operand:SI 1 "nonimmediate_operand" ""))
- (const_int 0)))
- (set (match_operand:SI 0 "nonimmediate_operand" "")
- (not:SI (match_dup 1)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(not:SI (match_operand:SI 3 "nonimmediate_operand" ""))
+ (const_int 0)]))
+ (set (match_operand:SI 1 "nonimmediate_operand" "")
+ (not:SI (match_dup 3)))]
"ix86_match_ccmode (insn, CCNOmode)"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (xor:SI (match_dup 1) (const_int -1))
- (const_int 0)))
- (set (match_dup 0)
- (xor:SI (match_dup 1) (const_int -1)))])]
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2 [(xor:SI (match_dup 3) (const_int -1))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (xor:SI (match_dup 3) (const_int -1)))])]
"")
;; ??? Currently never generated - xor is used instead.
(set_attr "mode" "SI")])
(define_split
- [(set (reg FLAGS_REG)
- (compare (not:SI (match_operand:SI 1 "register_operand" ""))
- (const_int 0)))
- (set (match_operand:DI 0 "register_operand" "")
- (zero_extend:DI (not:SI (match_dup 1))))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(not:SI (match_operand:SI 3 "register_operand" ""))
+ (const_int 0)]))
+ (set (match_operand:DI 1 "register_operand" "")
+ (zero_extend:DI (not:SI (match_dup 3))))]
"ix86_match_ccmode (insn, CCNOmode)"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (xor:SI (match_dup 1) (const_int -1))
- (const_int 0)))
- (set (match_dup 0)
- (zero_extend:DI (xor:SI (match_dup 1) (const_int -1))))])]
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2 [(xor:SI (match_dup 3) (const_int -1))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (zero_extend:DI (xor:SI (match_dup 3) (const_int -1))))])]
"")
(define_expand "one_cmplhi2"
(set_attr "mode" "HI")])
(define_split
- [(set (reg FLAGS_REG)
- (compare (not:HI (match_operand:HI 1 "nonimmediate_operand" ""))
- (const_int 0)))
- (set (match_operand:HI 0 "nonimmediate_operand" "")
- (not:HI (match_dup 1)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(not:HI (match_operand:HI 3 "nonimmediate_operand" ""))
+ (const_int 0)]))
+ (set (match_operand:HI 1 "nonimmediate_operand" "")
+ (not:HI (match_dup 3)))]
"ix86_match_ccmode (insn, CCNOmode)"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (xor:HI (match_dup 1) (const_int -1))
- (const_int 0)))
- (set (match_dup 0)
- (xor:HI (match_dup 1) (const_int -1)))])]
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2 [(xor:HI (match_dup 3) (const_int -1))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (xor:HI (match_dup 3) (const_int -1)))])]
"")
;; %%% Potential partial reg stall on alternative 1. What to do?
(set_attr "mode" "QI")])
(define_split
- [(set (reg FLAGS_REG)
- (compare (not:QI (match_operand:QI 1 "nonimmediate_operand" ""))
- (const_int 0)))
- (set (match_operand:QI 0 "nonimmediate_operand" "")
- (not:QI (match_dup 1)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(not:QI (match_operand:QI 3 "nonimmediate_operand" ""))
+ (const_int 0)]))
+ (set (match_operand:QI 1 "nonimmediate_operand" "")
+ (not:QI (match_dup 3)))]
"ix86_match_ccmode (insn, CCNOmode)"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (xor:QI (match_dup 1) (const_int -1))
- (const_int 0)))
- (set (match_dup 0)
- (xor:QI (match_dup 1) (const_int -1)))])]
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2 [(xor:QI (match_dup 3) (const_int -1))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (xor:QI (match_dup 3) (const_int -1)))])]
"")
\f
;; Arithmetic shift instructions
; instruction size is unchanged, except in the %eax case for
; which it is increased by one byte, hence the ! optimize_size.
(define_split
- [(set (reg FLAGS_REG)
- (compare (and (match_operand 1 "aligned_operand" "")
- (match_operand 2 "const_int_operand" ""))
- (const_int 0)))
- (set (match_operand 0 "register_operand" "")
- (and (match_dup 1) (match_dup 2)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 2 "compare_operator"
+ [(and (match_operand 3 "aligned_operand" "")
+ (match_operand 4 "const_int_operand" ""))
+ (const_int 0)]))
+ (set (match_operand 1 "register_operand" "")
+ (and (match_dup 3) (match_dup 4)))]
"! TARGET_PARTIAL_REG_STALL && reload_completed
/* Ensure that the operand will remain sign-extended immediate. */
- && ix86_match_ccmode (insn, INTVAL (operands[2]) >= 0 ? CCNOmode : CCZmode)
+ && ix86_match_ccmode (insn, INTVAL (operands[4]) >= 0 ? CCNOmode : CCZmode)
&& ! optimize_size
- && ((GET_MODE (operands[0]) == HImode && ! TARGET_FAST_PREFIX)
- || (GET_MODE (operands[0]) == QImode && TARGET_PROMOTE_QImode))"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (and:SI (match_dup 1) (match_dup 2))
- (const_int 0)))
- (set (match_dup 0)
- (and:SI (match_dup 1) (match_dup 2)))])]
- "operands[2]
- = gen_int_mode (INTVAL (operands[2])
- & GET_MODE_MASK (GET_MODE (operands[0])),
- SImode);
- operands[0] = gen_lowpart (SImode, operands[0]);
- operands[1] = gen_lowpart (SImode, operands[1]);")
+ && ((GET_MODE (operands[1]) == HImode && ! TARGET_FAST_PREFIX)
+ || (GET_MODE (operands[1]) == QImode && TARGET_PROMOTE_QImode))"
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 2 [(and:SI (match_dup 3) (match_dup 4))
+ (const_int 0)]))
+ (set (match_dup 1)
+ (and:SI (match_dup 3) (match_dup 4)))])]
+{
+ operands[4]
+ = gen_int_mode (INTVAL (operands[4])
+ & GET_MODE_MASK (GET_MODE (operands[1])), SImode);
+ operands[1] = gen_lowpart (SImode, operands[1]);
+ operands[3] = gen_lowpart (SImode, operands[3]);
+})
; Don't promote the QImode tests, as i386 doesn't have encoding of
; the TEST instruction with 32-bit sign-extended immediate and thus
; the instruction size would at least double, which is not what we
; want even with ! optimize_size.
(define_split
- [(set (reg FLAGS_REG)
- (compare (and (match_operand:HI 0 "aligned_operand" "")
- (match_operand:HI 1 "const_int_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and (match_operand:HI 2 "aligned_operand" "")
+ (match_operand:HI 3 "const_int_operand" ""))
+ (const_int 0)]))]
"! TARGET_PARTIAL_REG_STALL && reload_completed
/* Ensure that the operand will remain sign-extended immediate. */
- && ix86_match_ccmode (insn, INTVAL (operands[1]) >= 0 ? CCNOmode : CCZmode)
+ && ix86_match_ccmode (insn, INTVAL (operands[3]) >= 0 ? CCNOmode : CCZmode)
&& ! TARGET_FAST_PREFIX
&& ! optimize_size"
- [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (and:SI (match_dup 0) (match_dup 1))
- (const_int 0)))]
- "operands[1]
- = gen_int_mode (INTVAL (operands[1])
- & GET_MODE_MASK (GET_MODE (operands[0])),
- SImode);
- operands[0] = gen_lowpart (SImode, operands[0]);")
+ [(set (match_dup 0)
+ (match_op_dup 1 [(and:SI (match_dup 2) (match_dup 3))
+ (const_int 0)]))]
+{
+ operands[3]
+ = gen_int_mode (INTVAL (operands[3])
+ & GET_MODE_MASK (GET_MODE (operands[2])), SImode);
+ operands[2] = gen_lowpart (SImode, operands[2]);
+})
(define_split
[(set (match_operand 0 "register_operand" "")
;; Don't compare memory with zero, load and use a test instead.
(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:SI 0 "memory_operand" "")
- (const_int 0)))
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(match_operand:SI 2 "memory_operand" "")
+ (const_int 0)]))
(match_scratch:SI 3 "r")]
"ix86_match_ccmode (insn, CCNOmode) && ! optimize_size"
- [(set (match_dup 3) (match_dup 0))
- (set (reg:CCNO FLAGS_REG) (compare:CCNO (match_dup 3) (const_int 0)))]
+ [(set (match_dup 3) (match_dup 2))
+ (set (match_dup 0) (match_op_dup 1 [(match_dup 3) (const_int 0)]))]
"")
;; NOT is not pairable on Pentium, while XOR is, but one byte longer.
;; versions if we're concerned about partial register stalls.
(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (and:SI (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "immediate_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and:SI (match_operand:SI 2 "register_operand" "")
+ (match_operand:SI 3 "immediate_operand" ""))
+ (const_int 0)]))]
"ix86_match_ccmode (insn, CCNOmode)
- && (true_regnum (operands[0]) != 0
- || (GET_CODE (operands[1]) == CONST_INT
- && CONST_OK_FOR_LETTER_P (INTVAL (operands[1]), 'K')))
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
+ && (true_regnum (operands[2]) != 0
+ || (GET_CODE (operands[3]) == CONST_INT
+ && CONST_OK_FOR_LETTER_P (INTVAL (operands[3]), 'K')))
+ && peep2_reg_dead_p (1, operands[2])"
[(parallel
- [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (and:SI (match_dup 0)
- (match_dup 1))
- (const_int 0)))
- (set (match_dup 0)
- (and:SI (match_dup 0) (match_dup 1)))])]
+ [(set (match_dup 0)
+ (match_op_dup 1 [(and:SI (match_dup 2) (match_dup 3))
+ (const_int 0)]))
+ (set (match_dup 2)
+ (and:SI (match_dup 2) (match_dup 3)))])]
"")
;; We don't need to handle HImode case, because it will be promoted to SImode
;; on ! TARGET_PARTIAL_REG_STALL
(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (and:QI (match_operand:QI 0 "register_operand" "")
- (match_operand:QI 1 "immediate_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and:QI (match_operand:QI 2 "register_operand" "")
+ (match_operand:QI 3 "immediate_operand" ""))
+ (const_int 0)]))]
"! TARGET_PARTIAL_REG_STALL
&& ix86_match_ccmode (insn, CCNOmode)
- && true_regnum (operands[0]) != 0
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
+ && true_regnum (operands[2]) != 0
+ && peep2_reg_dead_p (1, operands[2])"
[(parallel
- [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO (and:QI (match_dup 0)
- (match_dup 1))
- (const_int 0)))
- (set (match_dup 0)
- (and:QI (match_dup 0) (match_dup 1)))])]
+ [(set (match_dup 0)
+ (match_op_dup 1 [(and:QI (match_dup 2) (match_dup 3))
+ (const_int 0)]))
+ (set (match_dup 2)
+ (and:QI (match_dup 2) (match_dup 3)))])]
"")
(define_peephole2
- [(set (reg FLAGS_REG)
- (compare
- (and:SI
- (zero_extract:SI
- (match_operand 0 "ext_register_operand" "")
- (const_int 8)
- (const_int 8))
- (match_operand 1 "const_int_operand" ""))
- (const_int 0)))]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(and:SI
+ (zero_extract:SI
+ (match_operand 2 "ext_register_operand" "")
+ (const_int 8)
+ (const_int 8))
+ (match_operand 3 "const_int_operand" ""))
+ (const_int 0)]))]
"! TARGET_PARTIAL_REG_STALL
&& ix86_match_ccmode (insn, CCNOmode)
- && true_regnum (operands[0]) != 0
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCNO FLAGS_REG)
- (compare:CCNO
- (and:SI
- (zero_extract:SI
- (match_dup 0)
- (const_int 8)
- (const_int 8))
- (match_dup 1))
- (const_int 0)))
- (set (zero_extract:SI (match_dup 0)
+ && true_regnum (operands[2]) != 0
+ && peep2_reg_dead_p (1, operands[2])"
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 1
+ [(and:SI
+ (zero_extract:SI
+ (match_dup 2)
+ (const_int 8)
+ (const_int 8))
+ (match_dup 3))
+ (const_int 0)]))
+ (set (zero_extract:SI (match_dup 2)
(const_int 8)
(const_int 8))
(and:SI
(zero_extract:SI
- (match_dup 0)
+ (match_dup 2)
(const_int 8)
(const_int 8))
- (match_dup 1)))])]
+ (match_dup 3)))])]
"")
;; Don't do logical operations with memory inputs.
"")
\f
;; Convert compares with 1 to shorter inc/dec operations when CF is not
-;; required and register dies.
+;; required and register dies. Similarly for 128 to plus -128.
(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:SI 0 "register_operand" "")
- (match_operand:SI 1 "incdec_operand" "")))]
- "ix86_match_ccmode (insn, CCGCmode)
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCGC FLAGS_REG)
- (compare:CCGC (match_dup 0)
- (match_dup 1)))
- (clobber (match_dup 0))])]
- "")
-
-(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:HI 0 "register_operand" "")
- (match_operand:HI 1 "incdec_operand" "")))]
- "ix86_match_ccmode (insn, CCGCmode)
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCGC FLAGS_REG)
- (compare:CCGC (match_dup 0)
- (match_dup 1)))
- (clobber (match_dup 0))])]
- "")
-
-(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:QI 0 "register_operand" "")
- (match_operand:QI 1 "incdec_operand" "")))]
- "ix86_match_ccmode (insn, CCGCmode)
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCGC FLAGS_REG)
- (compare:CCGC (match_dup 0)
- (match_dup 1)))
- (clobber (match_dup 0))])]
- "")
-
-;; Convert compares with 128 to shorter add -128
-(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:SI 0 "register_operand" "")
- (const_int 128)))]
- "ix86_match_ccmode (insn, CCGCmode)
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCGC FLAGS_REG)
- (compare:CCGC (match_dup 0)
- (const_int 128)))
- (clobber (match_dup 0))])]
- "")
-
-(define_peephole2
- [(set (reg FLAGS_REG)
- (compare (match_operand:HI 0 "register_operand" "")
- (const_int 128)))]
- "ix86_match_ccmode (insn, CCGCmode)
- && find_regno_note (insn, REG_DEAD, true_regnum (operands[0]))"
- [(parallel [(set (reg:CCGC FLAGS_REG)
- (compare:CCGC (match_dup 0)
- (const_int 128)))
- (clobber (match_dup 0))])]
+ [(set (match_operand 0 "flags_reg_operand" "")
+ (match_operator 1 "compare_operator"
+ [(match_operand 2 "register_operand" "")
+ (match_operand 3 "const_int_operand" "")]))]
+ "(INTVAL (operands[3]) == -1
+ || INTVAL (operands[3]) == 1
+ || INTVAL (operands[3]) == 128)
+ && ix86_match_ccmode (insn, CCGCmode)
+ && peep2_reg_dead_p (1, operands[2])"
+ [(parallel [(set (match_dup 0)
+ (match_op_dup 1 [(match_dup 2) (match_dup 3)]))
+ (clobber (match_dup 2))])]
"")
\f
(define_peephole2
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