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| author | David Bolvansky <david.bolvansky@gmail.com> | 2018-07-28 06:55:51 +0000 |
|---|---|---|
| committer | David Bolvansky <david.bolvansky@gmail.com> | 2018-07-28 06:55:51 +0000 |
| commit | f947608ddfe026eaf013524e5fe09d3c425a5cf0 (patch) | |
| tree | 2428922e8296e8b4712338c7032ac57b48afdc5a /llvm/lib/CodeGen/TargetLoweringBase.cpp | |
| parent | 256db4b799a7c6e01d5210099f403b1bf124e2ba (diff) | |
| download | llvm-f947608ddfe026eaf013524e5fe09d3c425a5cf0.zip llvm-f947608ddfe026eaf013524e5fe09d3c425a5cf0.tar.gz llvm-f947608ddfe026eaf013524e5fe09d3c425a5cf0.tar.bz2 | |
[InstCombine] Fold Select with AND/OR condition
Summary:
Fold
```
%A = icmp ne i8 %X, %V1
%B = icmp ne i8 %X, %V2
%C = or i1 %A, %B
%D = select i1 %C, i8 %X, i8 %V1
ret i8 %D
=>
ret i8 %X
Fixes https://bugs.llvm.org/show_bug.cgi?id=38334
Proof: https://rise4fun.com/Alive/plI8
Reviewers: spatel, lebedev.ri
Reviewed By: lebedev.ri
Subscribers: craig.topper, llvm-commits
Differential Revision: https://reviews.llvm.org/D49919
llvm-svn: 338191
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringBase.cpp')
0 files changed, 0 insertions, 0 deletions