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| author | Amaury Sechet <deadalnix@gmail.com> | 2017-05-02 14:15:48 +0000 |
|---|---|---|
| committer | Amaury Sechet <deadalnix@gmail.com> | 2017-05-02 14:15:48 +0000 |
| commit | 106a7eab8494b6cd027eaad2b9dacd5dcc62a5af (patch) | |
| tree | 612919445aa7ee2d39d9a7d83f1d826ea11d5c2b /llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp | |
| parent | 3ba25737448de9f2e22fafd602cee4e0d1fdb44c (diff) | |
| download | bcm5719-llvm-106a7eab8494b6cd027eaad2b9dacd5dcc62a5af.tar.gz bcm5719-llvm-106a7eab8494b6cd027eaad2b9dacd5dcc62a5af.zip | |
[DAGCombine] (uaddo X, (addcarry Y, 0, Carry)) -> (addcarry X, Y, Carry)
Summary: This is a common pattern that arise when legalizing large integers operations. Only do it when Y + 1 cannot overflow as this would change the carry behavior of uaddo .
Reviewers: jyknight, nemanjai, mkuper, spatel, RKSimon, zvi, bkramer
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D32687
llvm-svn: 301922
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp')
0 files changed, 0 insertions, 0 deletions
