diff options
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineAndOrXor.cpp | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp b/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp index ccf5cd8581..3f4a857c41 100644 --- a/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp +++ b/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp @@ -1597,14 +1597,6 @@ Instruction *InstCombiner::visitOr(BinaryOperator &I) { Instruction *Ret = FoldOrWithConstants(I, Op0, A, V1, D); if (Ret) return Ret; } - - // (A & ~C) | (B & C) -> ((B ^ A) & C) ^ A - if (Op0->hasOneUse() && Op1->hasOneUse() && - match(C, m_Not(m_Specific(D)))) { - Value *Xor = Builder->CreateXor(B, A, "xor"); - Value *And = Builder->CreateAnd(Xor, D, "and"); - return BinaryOperator::CreateXor(And, A); - } } // (X >> Z) | (Y >> Z) -> (X|Y) >> Z for all shifts. @@ -1928,15 +1920,6 @@ Instruction *InstCombiner::visitXor(BinaryOperator &I) { return BinaryOperator::CreateAnd(NewOp, X); } } - - // (A & ~C) ^ (B & C) -> ((B ^ A) & C) ^ A - if (Op0->hasOneUse() && Op1->hasOneUse() && - match(Op0I, m_And(m_Value(A), m_Not(m_Value(D)))) && - match(Op1I, m_And(m_Value(B), m_Specific(D)))) { - Value *Xor = Builder->CreateXor(B, A, "xor"); - Value *And = Builder->CreateAnd(Xor, D, "and"); - return BinaryOperator::CreateXor(And, A); - } } // (icmp1 A, B) ^ (icmp2 A, B) --> (icmp3 A, B) |