diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2018-07-10 13:33:26 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-07-10 13:33:26 +0000 |
| commit | 06ea4206add244d32645715e98e64def14e86bd6 (patch) | |
| tree | 0ddae78cb2276c812c90a03909cb83d66fc81d4d /clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp | |
| parent | 612bf7cac568b7670b06e0d2c1e784e39bbf23aa (diff) | |
| download | bcm5719-llvm-06ea4206add244d32645715e98e64def14e86bd6.tar.gz bcm5719-llvm-06ea4206add244d32645715e98e64def14e86bd6.zip | |
[InstCombine] allow more shuffle-binop folds with safe constants
The case with 2 variables is more complicated than the case where
we eliminate the shuffle entirely because a shuffle with an undef
mask element creates an undef result.
I'm not aware of any current analysis/transform that recognizes that
undef propagating to a div/rem/shift, but we have to guard against
the possibility.
llvm-svn: 336668
Diffstat (limited to 'clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp')
0 files changed, 0 insertions, 0 deletions
