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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2013-01-24 16:28:28 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2013-01-24 16:28:28 +0000 |
| commit | 435eba09b75dc64a0e3a1b39953c1ddc3ef0de7c (patch) | |
| tree | e73818da30d62c176e72727d1a0424b48ab0e7a0 /llvm/lib/Transforms | |
| parent | cbc86bcbb59e9db635600d1aba277413bb09d0cb (diff) | |
| download | bcm5719-llvm-435eba09b75dc64a0e3a1b39953c1ddc3ef0de7c.tar.gz bcm5719-llvm-435eba09b75dc64a0e3a1b39953c1ddc3ef0de7c.zip | |
ConstantFolding: Add a missing folding that leads to a miscompile.
We use constant folding to see if an intrinsic evaluates to the same value as a
constant that we know. If we don't take the undefinedness into account we get a
value that doesn't match the actual implementation, and miscompiled code.
This was uncovered by Chandler's simplifycfg changes.
llvm-svn: 173356
Diffstat (limited to 'llvm/lib/Transforms')
0 files changed, 0 insertions, 0 deletions
