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| author | David Majnemer <david.majnemer@gmail.com> | 2014-12-17 01:54:33 +0000 |
|---|---|---|
| committer | David Majnemer <david.majnemer@gmail.com> | 2014-12-17 01:54:33 +0000 |
| commit | 65c52ae8ca180cf54094cb78045e18ba82aec46e (patch) | |
| tree | 9db5d71b17bdd9f65aef0c182cdf2ebe33dd59a4 /llvm/lib/Support/CrashRecoveryContext.cpp | |
| parent | ee0a3a7a2f018a5d40015b853210b726a8a8b635 (diff) | |
| download | bcm5719-llvm-65c52ae8ca180cf54094cb78045e18ba82aec46e.tar.gz bcm5719-llvm-65c52ae8ca180cf54094cb78045e18ba82aec46e.zip | |
InstSimplify: shl nsw/nuw undef, %V -> undef
We can always choose an value for undef which might cause %V to shift
out an important bit except for one case, when %V is zero.
However, shl behaves like an identity function when the right hand side
is zero.
llvm-svn: 224405
Diffstat (limited to 'llvm/lib/Support/CrashRecoveryContext.cpp')
0 files changed, 0 insertions, 0 deletions
