diff options
| author | Sanjay Patel <spatel@rotateright.com> | 2018-02-05 17:16:50 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-02-05 17:16:50 +0000 |
| commit | 2329fcd293e138924d96d4b2643dab7f3d60c3f3 (patch) | |
| tree | 7c5cc97070da9ce82927a4b1c9683fe4985cefae /llvm/lib/Transforms/Utils | |
| parent | eb175a00abec0b4d7fb51bf7c78b1ea75a1d265f (diff) | |
| download | bcm5719-llvm-2329fcd293e138924d96d4b2643dab7f3d60c3f3.tar.gz bcm5719-llvm-2329fcd293e138924d96d4b2643dab7f3d60c3f3.zip | |
[InstCombine] only allow narrow/wide evaluation of values with >1 use if that user is a binop
There was a logic hole in D42739 / rL324014 because we're not accounting for select and phi
instructions that might have repeated operands. This is likely a source of an infinite loop.
I haven't manufactured a test case to prove that, but it should be safe to speculatively limit
this transform to binops while we try to create that test.
llvm-svn: 324252
Diffstat (limited to 'llvm/lib/Transforms/Utils')
0 files changed, 0 insertions, 0 deletions
