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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60398 91177308-0d34-0410-b5e6-96231b3b80d8
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Bill Wendling 2008-12-02 05:09:00 +00:00
parent dda74e0702
commit a8bb13f989
1 changed files with 3 additions and 4 deletions
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7
lib/Transforms/Scalar/InstructionCombining.cpp
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@ -4437,14 +4437,13 @@ Instruction *InstCombiner::FoldOrOfICmps(Instruction &I,
/// FoldOrWithConstants - This helper function folds:
///
/// ((A | B) & 1) | (B & -2)
/// ((A | B) & C1) | (B & C2)
///
/// into:
///
/// (A & 1) | B
/// (A & C1) | B
///
/// The constants aren't important. Only that they don't overlap. (I.e., the XOR
/// of the two constants is "all ones".)
/// when the XOR of the two constants is "all ones" (-1).
Instruction *InstCombiner::FoldOrWithConstants(BinaryOperator &I, Value *Op,
Value *A, Value *B, Value *C) {
ConstantInt *CI1 = dyn_cast<ConstantInt>(C);