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| author | Sanjay Patel <spatel@rotateright.com> | 2016-04-01 17:36:45 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-04-01 17:36:45 +0000 |
| commit | 9f413364d5a0e6c1f440b0ed7a14031130256922 (patch) | |
| tree | 8d4379fed78fc4b59ddb52b7380e424e175c8e83 /llvm/test/Instrumentation/SanitizerCoverage/coverage.ll | |
| parent | 8787a81023434467a2b0b871d5ab9930fa5324bd (diff) | |
| download | bcm5719-llvm-9f413364d5a0e6c1f440b0ed7a14031130256922.tar.gz bcm5719-llvm-9f413364d5a0e6c1f440b0ed7a14031130256922.zip | |
[x86] avoid intermediate splat for non-zero memsets (PR27100)
Follow-up to http://reviews.llvm.org/D18566 and http://reviews.llvm.org/D18676 -
where we noticed that an intermediate splat was being generated for memsets of
non-zero chars.
That was because we told getMemsetStores() to use a 32-bit vector element type,
and it happily obliged by producing that constant using an integer multiply.
The 16-byte test that was added in D18566 is now equivalent for AVX1 and AVX2
(no splats, just a vector load), but we have PR27141 to track that splat difference.
Note that the SSE1 path is not changed in this patch. That can be a follow-up.
This patch should resolve PR27100.
llvm-svn: 265161
Diffstat (limited to 'llvm/test/Instrumentation/SanitizerCoverage/coverage.ll')
0 files changed, 0 insertions, 0 deletions
