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| author | David Majnemer <david.majnemer@gmail.com> | 2017-01-04 02:21:31 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2017-01-04 02:21:31 +0000 |
| commit | 022d2a563bf81be5c0629ebc9193bcb51b88d0a4 (patch) | |
| tree | 2b8a1f4e902dc5710e64ee52c798aa5132beb317 /llvm/lib/Transforms/Scalar/GVNHoist.cpp | |
| parent | 6298b44448c9edf852694d2bb9ed35c04325b098 (diff) | |
| download | bcm5719-llvm-022d2a563bf81be5c0629ebc9193bcb51b88d0a4.tar.gz bcm5719-llvm-022d2a563bf81be5c0629ebc9193bcb51b88d0a4.zip | |
[InstCombine] Combine adds across a zext
We can perform the following:
(add (zext (add nuw X, C1)), C2) -> (zext (add nuw X, C1+C2))
This is only possible if C2 is negative and C2 is greater than or equal to negative C1.
llvm-svn: 290927
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVNHoist.cpp')
0 files changed, 0 insertions, 0 deletions
