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| author | Sanjay Patel <spatel@rotateright.com> | 2018-10-16 14:35:21 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2018-10-16 14:35:21 +0000 |
| commit | 0c48c977b84c91d4c1812bed7b2dc6b5fc376281 (patch) | |
| tree | 3b61dfe07f196c704b5f9974187ff487152c309b /clang/lib/CodeGen/CodeGenFunction.cpp | |
| parent | eaab2b77e1a6c5709966e9609ed15496a90f2bc0 (diff) | |
| download | llvm-0c48c977b84c91d4c1812bed7b2dc6b5fc376281.zip llvm-0c48c977b84c91d4c1812bed7b2dc6b5fc376281.tar.gz llvm-0c48c977b84c91d4c1812bed7b2dc6b5fc376281.tar.bz2 | |
[InstCombine] try harder to form select from logic ops
This is part of solving PR37549:
https://bugs.llvm.org/show_bug.cgi?id=37549
The patterns shown here are a special case of something
that we already convert to select. Using ComputeNumSignBits()
catches that case (but not the more complicated motivating
patterns yet).
The backend has hooks/logic to convert back to logic ops
if that's better for the target.
llvm-svn: 344609
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
0 files changed, 0 insertions, 0 deletions