diff options
| -rw-r--r-- | lib/Transforms/Scalar/InstructionCombining.cpp | 10 | ||||
| -rw-r--r-- | test/Transforms/InstCombine/or.ll | 14 |
2 files changed, 21 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp index e208d69f7c..50e9f24cc1 100644 --- a/lib/Transforms/Scalar/InstructionCombining.cpp +++ b/lib/Transforms/Scalar/InstructionCombining.cpp @@ -7324,9 +7324,13 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI, Constant::getNullValue(P->getType())); Value *ICIQ = Builder->CreateICmp(ICI.getPredicate(), Q, Constant::getNullValue(Q->getType())); - Instruction *And = BinaryOperator::CreateAnd(ICIP, ICIQ, ""); - And->takeName(&ICI); - return And; + Instruction *Op; + if (ICI.getPredicate() == ICmpInst::ICMP_EQ) + Op = BinaryOperator::CreateAnd(ICIP, ICIQ, ""); + else + Op = BinaryOperator::CreateOr(ICIP, ICIQ, ""); + Op->takeName(&ICI); + return Op; } break; } diff --git a/test/Transforms/InstCombine/or.ll b/test/Transforms/InstCombine/or.ll index 33058b5334..44228ba357 100644 --- a/test/Transforms/InstCombine/or.ll +++ b/test/Transforms/InstCombine/or.ll @@ -293,3 +293,17 @@ define i1 @test28(i32 %A, i32 %B) { ; CHECK: icmp ne i32 {{.*}}, 0 ; CHECK: ret i1 } + +define i1 @test29(i32* %A, i32* %B) { + %C1 = ptrtoint i32* %A to i32 + %C2 = ptrtoint i32* %B to i32 + %D = or i32 %C1, %C2 + %E = icmp ne i32 %D, 0 + ret i1 %E +; CHECK: @test29 +; CHECK: icmp ne i32* %A, null +; CHECK: icmp ne i32* %B, null +; CHECK: or i1 +; CHECK: ret i1 +} + |