diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp index 4cf836c03b2..32414ba838a 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -1503,16 +1503,10 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI, unsigned RHSLog2 = RHSV.logBase2(); // (1 << X) >= 2147483648 -> X >= 31 -> X == 31 - // (1 << X) > 2147483648 -> X > 31 -> false - // (1 << X) <= 2147483648 -> X <= 31 -> true // (1 << X) < 2147483648 -> X < 31 -> X != 31 if (RHSLog2 == TypeBits-1) { if (Pred == ICmpInst::ICMP_UGE) Pred = ICmpInst::ICMP_EQ; - else if (Pred == ICmpInst::ICMP_UGT) - return ReplaceInstUsesWith(ICI, Builder->getFalse()); - else if (Pred == ICmpInst::ICMP_ULE) - return ReplaceInstUsesWith(ICI, Builder->getTrue()); else if (Pred == ICmpInst::ICMP_ULT) Pred = ICmpInst::ICMP_NE; } @@ -1547,10 +1541,6 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI, if (RHSVIsPowerOf2) return new ICmpInst( Pred, X, ConstantInt::get(RHS->getType(), RHSV.logBase2())); - - return ReplaceInstUsesWith( - ICI, Pred == ICmpInst::ICMP_EQ ? Builder->getFalse() - : Builder->getTrue()); } } break; |
