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| author | Guozhi Wei <carrot@google.com> | 2018-03-15 17:49:12 +0000 |
|---|---|---|
| committer | Guozhi Wei <carrot@google.com> | 2018-03-15 17:49:12 +0000 |
| commit | 9c916584ba198dfcd21cea645ac1406e399e5b30 (patch) | |
| tree | a4aab49e328976fe0786aa5ff4b13fbe6f5fb77e /clang/unittests/Frontend/CompilerInstanceTest.cpp | |
| parent | 48b758e8ad14a5553326eaf3b2365b73162c6a24 (diff) | |
| download | bcm5719-llvm-9c916584ba198dfcd21cea645ac1406e399e5b30.tar.gz bcm5719-llvm-9c916584ba198dfcd21cea645ac1406e399e5b30.zip | |
[PPC] Avoid non-simple MVT in STBRX optimization
PR35402 triggered this case. It bswap and stores a 48bit value, current STBRX optimization transforms it into STBRX. Unfortunately 48bit is not a simple MVT, there is no PPC instruction to support it, and it can't be automatically expanded by llvm, so caused a crash.
This patch detects the non-simple MVT and returns early.
Differential Revision: https://reviews.llvm.org/D44500
llvm-svn: 327651
Diffstat (limited to 'clang/unittests/Frontend/CompilerInstanceTest.cpp')
0 files changed, 0 insertions, 0 deletions
