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| author | cfang <cfang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-06-29 17:53:49 +0000 |
|---|---|---|
| committer | cfang <cfang@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-06-29 17:53:49 +0000 |
| commit | 2aba8c96ff2c4ef49ec3ecc573b9e93b98b15e6e (patch) | |
| tree | 27d28736764410b2e6f2d4484a38e12e0a3ff7fc /gcc/config/i386/i386.opt | |
| parent | bd1f39ce52d29a9be224aed5d5debb565d4a282f (diff) | |
| download | gcc-2aba8c96ff2c4ef49ec3ecc573b9e93b98b15e6e.tar.gz | |
Auto-vectorizer generates 128-bit AVX insns by default for bdver1.
* config/i386/i386.opt (mprefer-avx128): Redefine the flag as a Mask option.
* config/i386/i386.h (ix86_tune_indices): Add X86_TUNE_AVX128_OPTIMAL entry.
(TARGET_AVX128_OPTIMAL): New definition.
* config/i386/i386.c (initial_ix86_tune_features): Initialize
X86_TUNE_AVX128_OPTIMAL entry.
(ix86_option_override_internal): Enable the generation
of the 128-bit instructions when TARGET_AVX128_OPTIMAL is set.
(ix86_preferred_simd_mode): Use TARGET_PREFER_AVX128.
(ix86_autovectorize_vector_sizes): Use TARGET_PREFER_AVX128.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@175661 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/i386/i386.opt')
| -rw-r--r-- | gcc/config/i386/i386.opt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt index 21e0def1549..9886b7bbce4 100644 --- a/gcc/config/i386/i386.opt +++ b/gcc/config/i386/i386.opt @@ -388,7 +388,7 @@ Do dispatch scheduling if processor is bdver1 and Haifa scheduling is selected. mprefer-avx128 -Target Report Var(flag_prefer_avx128) Init(0) +Target Report Mask(PREFER_AVX128) SAVE Use 128-bit AVX instructions instead of 256-bit AVX instructions in the auto-vectorizer. ;; ISA support |