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i386.h (TARGET_AVOID_4BYTE_PREFIXES): Define.

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* config/i386/i386.h (TARGET_AVOID_4BYTE_PREFIXES): Define.
	* config/i386/constraints.md (Yr): Test TARGET_AVOID_4BYTE_PREFIXES
	rather than X86_TUNE_AVOID_4BYTE_PREFIXES.

From-SVN: r236662
This commit is contained in:
Jakub Jelinek 2016-05-24 21:12:42 +02:00 • committed by Jakub Jelinek
parent a0caac985d
commit 8e0dc0549a
3 changed files with 7 additions and 1 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2016-05-24 Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.h (TARGET_AVOID_4BYTE_PREFIXES): Define.
* config/i386/constraints.md (Yr): Test TARGET_AVOID_4BYTE_PREFIXES
rather than X86_TUNE_AVOID_4BYTE_PREFIXES.
* config/i386/sse.md (<sse4_1>_round<ssemodesuffix><avxsizesuffix>):
Limit 1st alternative to noavx isa, split 2nd alternative into one
noavx and one avx alternative, use *x and Bm in the former and

2
gcc/config/i386/constraints.md
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@ -142,7 +142,7 @@
"@internal Any x87 register when 80387 FP arithmetic is enabled.")
(define_register_constraint "Yr"
"TARGET_SSE ? (X86_TUNE_AVOID_4BYTE_PREFIXES ? NO_REX_SSE_REGS : ALL_SSE_REGS) : NO_REGS"
"TARGET_SSE ? (TARGET_AVOID_4BYTE_PREFIXES ? NO_REX_SSE_REGS : ALL_SSE_REGS) : NO_REGS"
"@internal Lower SSE register when avoiding REX prefix and all SSE registers otherwise.")
(define_register_constraint "Yv"

2
gcc/config/i386/i386.h
View file

@ -465,6 +465,8 @@ extern unsigned char ix86_tune_features[X86_TUNE_LAST];
ix86_tune_features[X86_TUNE_SLOW_PSHUFB]
#define TARGET_VECTOR_PARALLEL_EXECUTION \
ix86_tune_features[X86_TUNE_VECTOR_PARALLEL_EXECUTION]
#define TARGET_AVOID_4BYTE_PREFIXES \
ix86_tune_features[X86_TUNE_AVOID_4BYTE_PREFIXES]
#define TARGET_FUSE_CMP_AND_BRANCH_32 \
ix86_tune_features[X86_TUNE_FUSE_CMP_AND_BRANCH_32]
#define TARGET_FUSE_CMP_AND_BRANCH_64 \