diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp index e4b7903a6e9..8c9acc1147e 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp @@ -2111,12 +2111,16 @@ Instruction *InstCombiner::visitOr(BinaryOperator &I) { } // (A ^ B) | ((B ^ C) ^ A) -> (A ^ B) | C + // FIXME: The two hasOneUse calls here are the same call, maybe we were + // supposed to check Op1->operand(0)? if (match(Op0, m_Xor(m_Value(A), m_Value(B)))) if (match(Op1, m_Xor(m_Xor(m_Specific(B), m_Value(C)), m_Specific(A)))) if (Op1->hasOneUse() || cast<BinaryOperator>(Op1)->hasOneUse()) return BinaryOperator::CreateOr(Op0, C); // ((A ^ C) ^ B) | (B ^ A) -> (B ^ A) | C + // FIXME: The two hasOneUse calls here are the same call, maybe we were + // supposed to check Op0->operand(0)? if (match(Op0, m_Xor(m_Xor(m_Value(A), m_Value(C)), m_Value(B)))) if (match(Op1, m_Xor(m_Specific(B), m_Specific(A)))) if (Op0->hasOneUse() || cast<BinaryOperator>(Op0)->hasOneUse()) |
