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i386: Fix non-robust split condition in define_insn_and_split

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This patch is to fix some non-robust split conditions in some
define_insn_and_splits, to make each of them applied on top of
the corresponding condition for define_insn part, otherwise the
splitting could perform unexpectedly.

gcc/ChangeLog:

	* config/i386/i386.md (*add<dwi>3_doubleword, *addv<dwi>4_doubleword,
	*addv<dwi>4_doubleword_1, *sub<dwi>3_doubleword,
	*subv<dwi>4_doubleword, *subv<dwi>4_doubleword_1,
	*add<dwi>3_doubleword_cc_overflow_1, *divmodsi4_const,
	*neg<dwi>2_doubleword, *tls_dynamic_gnu2_combine_64_<mode>): Fix split
	condition.
This commit is contained in:
Kewen Lin 2021-11-17 04:02:20 -06:00
parent 1a15a91a00
commit bf5f41e4fc
1 changed files with 10 additions and 10 deletions
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20
gcc/config/i386/i386.md
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@ -5491,7 +5491,7 @@
(clobber (reg:CC FLAGS_REG))]
"ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CCC FLAGS_REG)
(compare:CCC
(plus:DWIH (match_dup 1) (match_dup 2))
@ -6300,7 +6300,7 @@
(plus:<DWI> (match_dup 1) (match_dup 2)))]
"ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CCC FLAGS_REG)
(compare:CCC
(plus:DWIH (match_dup 1) (match_dup 2))
@ -6347,7 +6347,7 @@
&& CONST_SCALAR_INT_P (operands[2])
&& rtx_equal_p (operands[2], operands[3])"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CCC FLAGS_REG)
(compare:CCC
(plus:DWIH (match_dup 1) (match_dup 2))
@ -6641,7 +6641,7 @@
(clobber (reg:CC FLAGS_REG))]
"ix86_binary_operator_ok (MINUS, <MODE>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CC FLAGS_REG)
(compare:CC (match_dup 1) (match_dup 2)))
(set (match_dup 0)
@ -6817,7 +6817,7 @@
(minus:<DWI> (match_dup 1) (match_dup 2)))]
"ix86_binary_operator_ok (MINUS, <MODE>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CC FLAGS_REG)
(compare:CC (match_dup 1) (match_dup 2)))
(set (match_dup 0)
@ -6862,7 +6862,7 @@
&& CONST_SCALAR_INT_P (operands[2])
&& rtx_equal_p (operands[2], operands[3])"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CC FLAGS_REG)
(compare:CC (match_dup 1) (match_dup 2)))
(set (match_dup 0)
@ -7542,7 +7542,7 @@
(plus:<DWI> (match_dup 1) (match_dup 2)))]
"ix86_binary_operator_ok (PLUS, <DWI>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel [(set (reg:CCC FLAGS_REG)
(compare:CCC
(plus:DWIH (match_dup 1) (match_dup 2))
@ -9000,7 +9000,7 @@
(clobber (reg:CC FLAGS_REG))]
"!optimize_function_for_size_p (cfun)"
"#"
"reload_completed"
"&& reload_completed"
[(set (match_dup 0) (match_dup 2))
(set (match_dup 1) (match_dup 4))
(parallel [(set (match_dup 0)
@ -10515,7 +10515,7 @@
(clobber (reg:CC FLAGS_REG))]
"ix86_unary_operator_ok (NEG, <DWI>mode, operands)"
"#"
"reload_completed"
"&& reload_completed"
[(parallel
[(set (reg:CCC FLAGS_REG)
(ne:CCC (match_dup 1) (const_int 0)))
@ -16908,7 +16908,7 @@
(clobber (reg:CC FLAGS_REG))]
"TARGET_64BIT && TARGET_GNU2_TLS"
"#"
""
"&& 1"
[(set (match_dup 0) (match_dup 4))]
{
operands[4] = can_create_pseudo_p () ? gen_reg_rtx (ptr_mode) : operands[0];