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| author | Craig Topper <craig.topper@gmail.com> | 2017-05-08 17:22:34 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2017-05-08 17:22:34 +0000 |
| commit | 868813ffbb2b3d2ea1b5e97289460541363950f7 (patch) | |
| tree | 7c5635099bb7a16199f2155e0efad055d4cf1161 /llvm/lib/Transforms/Utils/InlineFunction.cpp | |
| parent | f358d48f238673cd738f53a2329d8173d13f575a (diff) | |
| download | llvm-868813ffbb2b3d2ea1b5e97289460541363950f7.zip llvm-868813ffbb2b3d2ea1b5e97289460541363950f7.tar.gz llvm-868813ffbb2b3d2ea1b5e97289460541363950f7.tar.bz2 | |
[ValueTracking] Use KnownOnes to provide a better bound on known zeros for ctlz/cttz intrinics
This patch uses KnownOnes of the input of ctlz/cttz to bound the value that can be returned from these intrinsics. This makes these intrinsics more similar to the handling for ctpop which already uses known bits to produce a similar bound.
Differential Revision: https://reviews.llvm.org/D32521
llvm-svn: 302444
Diffstat (limited to 'llvm/lib/Transforms/Utils/InlineFunction.cpp')
0 files changed, 0 insertions, 0 deletions