diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/InstructionCombining.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InstructionCombining.cpp | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp index c5f4dea0f0f..d15b6cf18bd 100644 --- a/llvm/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/llvm/lib/Transforms/Scalar/InstructionCombining.cpp @@ -3586,22 +3586,6 @@ Instruction *InstCombiner::visitAnd(BinaryOperator &I) { } } - - { // (icmp ugt/ult A, C) & (icmp B, C) --> (icmp (A|B), C) - // where C is a power of 2 - Value *A, *B; - ConstantInt *C1, *C2; - ICmpInst::Predicate LHSCC, RHSCC; - if (match(&I, m_And(m_ICmp(LHSCC, m_Value(A), m_ConstantInt(C1)), - m_ICmp(RHSCC, m_Value(B), m_ConstantInt(C2))))) - if (C1 == C2 && LHSCC == RHSCC && C1->getValue().isPowerOf2() && - (LHSCC == ICmpInst::ICMP_ULT || LHSCC == ICmpInst::ICMP_UGT)) { - Instruction *NewOr = BinaryOperator::CreateOr(A, B); - InsertNewInstBefore(NewOr, I); - return new ICmpInst(LHSCC, NewOr, C1); - } - } - if (ICmpInst *RHS = dyn_cast<ICmpInst>(Op1)) { // (icmp1 A, B) & (icmp2 A, B) --> (icmp3 A, B) if (Instruction *R = AssociativeOpt(I, FoldICmpLogical(*this, RHS))) |
