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| author | Sanjay Patel <spatel@rotateright.com> | 2016-03-31 17:30:06 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-03-31 17:30:06 +0000 |
| commit | 92d5ea5e07bf122b10500715cd74eed963cf56cc (patch) | |
| tree | 6b54f937b61d242102ab04439c74f34fcfc0be52 /clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp | |
| parent | ab962acd5940bb38810f4b7993166058ea8865f4 (diff) | |
| download | bcm5719-llvm-92d5ea5e07bf122b10500715cd74eed963cf56cc.tar.gz bcm5719-llvm-92d5ea5e07bf122b10500715cd74eed963cf56cc.zip | |
[x86] use SSE/AVX ops for non-zero memsets (PR27100)
Move the memset check down to the CPU-with-slow-SSE-unaligned-memops case: this allows fast
targets to take advantage of SSE/AVX instructions and prevents slow targets from stepping
into a codegen sinkhole while trying to splat a byte into an XMM reg.
Follow-on bugs exposed by the current codegen are:
https://llvm.org/bugs/show_bug.cgi?id=27141
https://llvm.org/bugs/show_bug.cgi?id=27143
Differential Revision: http://reviews.llvm.org/D18566
llvm-svn: 265029
Diffstat (limited to 'clang-tools-extra/clang-tidy/misc/MiscTidyModule.cpp')
0 files changed, 0 insertions, 0 deletions
