diff options
| author | Chris Lattner <sabre@nondot.org> | 2007-11-25 21:27:53 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2007-11-25 21:27:53 +0000 |
| commit | c00e8adfe0ec5149e3f952e4c99c67942c9367ef (patch) | |
| tree | 8a00b643d1057518cd7357a834c81d96bc08bfad /llvm/lib/Transforms | |
| parent | bd9df0f200ed7192f46eef53b6645781e9bb1982 (diff) | |
| download | bcm5719-llvm-c00e8adfe0ec5149e3f952e4c99c67942c9367ef.tar.gz bcm5719-llvm-c00e8adfe0ec5149e3f952e4c99c67942c9367ef.zip | |
Implement PR1822
llvm-svn: 44318
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index 85fd2c3bdb7..e90d1909ae4 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -7326,6 +7326,13 @@ Instruction *InstCombiner::visitSelectInst(SelectInst &SI) { return BinaryOperator::createOr(NotCond, TrueVal); } } + + // select a, b, a -> a&b + // select a, a, b -> a|b + if (CondVal == TrueVal) + return BinaryOperator::createOr(CondVal, FalseVal); + else if (CondVal == FalseVal) + return BinaryOperator::createAnd(CondVal, TrueVal); } // Selecting between two integer constants? |
