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| author | Craig Topper <craig.topper@gmail.com> | 2017-04-16 21:46:12 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2017-04-16 21:46:12 +0000 |
| commit | da886c665be230c90830a15dcab7ba1c3c9a29ca (patch) | |
| tree | 70e823664ef5fc3d8c427941a4f189aebcff0d3f /llvm/lib/Transforms/Utils/LCSSA.cpp | |
| parent | dd37c67d812e0770e0f82b7541b2af439cb9baca (diff) | |
| download | bcm5719-llvm-da886c665be230c90830a15dcab7ba1c3c9a29ca.tar.gz bcm5719-llvm-da886c665be230c90830a15dcab7ba1c3c9a29ca.zip | |
[InstCombine][ValueTracking] When computing known bits for Srem make sure we don't compute known bits for the LHS twice.
If we already called computeKnownBits for the RHS being a constant power of 2, we've already computed everything we can and should just stop. I think previously we would still recurse if we had determined the result was negative or had not determined the sign bit at all.
llvm-svn: 300432
Diffstat (limited to 'llvm/lib/Transforms/Utils/LCSSA.cpp')
0 files changed, 0 insertions, 0 deletions
