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| author | David Majnemer <david.majnemer@gmail.com> | 2015-04-22 22:42:05 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2015-04-22 22:42:05 +0000 |
| commit | 7d0e99c6019ca1c4c6708309ef5dade0db03b425 (patch) | |
| tree | ab617ef7dee6f4e251678779e1cbe578abb7d2c0 /llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | |
| parent | 64a2a6a473553f178b74c785722d4f8dfd6b9eb1 (diff) | |
| download | bcm5719-llvm-7d0e99c6019ca1c4c6708309ef5dade0db03b425.tar.gz bcm5719-llvm-7d0e99c6019ca1c4c6708309ef5dade0db03b425.zip | |
[InstCombine] Use a more targeted fix instead of r235544
Only clear out the NSW/NUW flags if we are optimizing 'add'/'sub' while
taking advantage that the sign bit is not set. We do this optimization
to further shrink the mask but shrinking the mask isn't NSW/NUW
preserving in this case.
llvm-svn: 235558
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
0 files changed, 0 insertions, 0 deletions
