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| author | Michael Kuperstein <mkuper@google.com> | 2016-07-06 17:30:56 +0000 |
|---|---|---|
| committer | Michael Kuperstein <mkuper@google.com> | 2016-07-06 17:30:56 +0000 |
| commit | aa71bdd3afe04b7f07e598b57b95ac580eaf036c (patch) | |
| tree | b9bc162f4c4187ca0073f39558f585a794294f3b /llvm/test/Transforms | |
| parent | 741b70926f76ddca0f75e219a2c6a7001bbb992c (diff) | |
| download | bcm5719-llvm-aa71bdd3afe04b7f07e598b57b95ac580eaf036c.tar.gz bcm5719-llvm-aa71bdd3afe04b7f07e598b57b95ac580eaf036c.zip | |
[TTI] The cost model should not assume vector casts get completely scalarized
The cost model should not assume vector casts get completely scalarized, since
on targets that have vector support, the common case is a partial split up to
the legal vector size. So, when a vector cast gets split, the resulting casts
end up legal and cheap.
Instead of pessimistically assuming scalarization, base TTI can use the costs
the concrete TTI provides for the split vector, plus a fudge factor to account
for the cost of the split itself. This fudge factor is currently 1 by default,
except on AMDGPU where inserts and extracts are considered free.
Differential Revision: http://reviews.llvm.org/D21251
llvm-svn: 274642
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll b/llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll index 23e363eae02..ec7ad1183ee 100644 --- a/llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll +++ b/llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll @@ -17,9 +17,9 @@ target triple = "x86_64-pc_linux" ;} ;AVX512-LABEL: @foo1 -;AVX512: llvm.masked.load.v8i32 -;AVX512: llvm.masked.gather.v8f32 -;AVX512: llvm.masked.store.v8f32 +;AVX512: llvm.masked.load.v16i32 +;AVX512: llvm.masked.gather.v16f32 +;AVX512: llvm.masked.store.v16f32 ;AVX512: ret void ; Function Attrs: nounwind uwtable |
