diff --git a/llvm/test/Transforms/DeadStoreElimination/invariant.start.ll b/llvm/test/Transforms/DeadStoreElimination/invariant.start.ll index 27400cd4ed16c..f00001f967e6a 100644 --- a/llvm/test/Transforms/DeadStoreElimination/invariant.start.ll +++ b/llvm/test/Transforms/DeadStoreElimination/invariant.start.ll @@ -1,3 +1,4 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; Test to make sure llvm.invariant.start calls are not treated as clobbers. ; RUN: opt < %s -basic-aa -dse -S | FileCheck %s @@ -6,29 +7,31 @@ declare {}* @llvm.invariant.start.p0i8(i64, i8* nocapture) nounwind readonly ; We cannot remove the store 1 to %p. ; FIXME: By the semantics of invariant.start, the store 3 to p is unreachable. define void @test(i8 *%p) { +; CHECK-LABEL: @test( +; CHECK-NEXT: store i8 1, i8* [[P:%.*]], align 4 +; CHECK-NEXT: [[I:%.*]] = call {}* @llvm.invariant.start.p0i8(i64 1, i8* [[P]]) +; CHECK-NEXT: store i8 3, i8* [[P]], align 4 +; CHECK-NEXT: ret void +; store i8 1, i8* %p, align 4 %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %p) store i8 3, i8* %p, align 4 ret void -; CHECK-LABEL: @test( -; CHECK-NEXT: store i8 1, i8* %p, align 4 -; CHECK-NEXT: %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %p) -; CHECK-NEXT: store i8 3, i8* %p, align 4 -; CHECK-NEXT: ret void } ; FIXME: We should be able to remove the first store to p, even though p and q ; may alias. define void @test2(i8* %p, i8* %q) { +; CHECK-LABEL: @test2( +; CHECK-NEXT: store i8 1, i8* [[P:%.*]], align 4 +; CHECK-NEXT: store i8 2, i8* [[Q:%.*]], align 4 +; CHECK-NEXT: [[I:%.*]] = call {}* @llvm.invariant.start.p0i8(i64 1, i8* [[Q]]) +; CHECK-NEXT: store i8 3, i8* [[P]], align 4 +; CHECK-NEXT: ret void +; store i8 1, i8* %p, align 4 store i8 2, i8* %q, align 4 %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %q) store i8 3, i8* %p, align 4 ret void -; CHECK-LABEL: @test2( -; CHECK-NEXT: store i8 1, i8* %p, align 4 -; CHECK-NEXT: store i8 2, i8* %q, align 4 -; CHECK-NEXT: %i = call {}* @llvm.invariant.start.p0i8(i64 1, i8* %q) -; CHECK-NEXT: store i8 3, i8* %p, align 4 -; CHECK-NEXT: ret void }