; RUN: opt -basic-aa -print-memoryssa -verify-memoryssa -enable-new-pm=0 -analyze < %s 2>&1 | FileCheck %s ; RUN: opt -aa-pipeline=basic-aa -passes='print,verify' -disable-output < %s 2>&1 | FileCheck %s ; This test checks that lifetime markers are considered clobbers of %P, ; and due to lack of noalias information, of %Q as well. define i8 @test(i8* %P, i8* %Q) { entry: ; CHECK: 1 = MemoryDef(liveOnEntry) ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 32, i8* %P) call void @llvm.lifetime.start.p0i8(i64 32, i8* %P) ; CHECK: MemoryUse(1) ; CHECK-NEXT: %0 = load i8, i8* %P %0 = load i8, i8* %P ; CHECK: 2 = MemoryDef(1) ; CHECK-NEXT: store i8 1, i8* %P store i8 1, i8* %P ; CHECK: 3 = MemoryDef(2) ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 32, i8* %P) call void @llvm.lifetime.end.p0i8(i64 32, i8* %P) ; CHECK: MemoryUse(3) ; CHECK-NEXT: %1 = load i8, i8* %P %1 = load i8, i8* %P ; CHECK: MemoryUse(3) ; CHECK-NEXT: %2 = load i8, i8* %Q %2 = load i8, i8* %Q ret i8 %1 } declare void @llvm.lifetime.start.p0i8(i64 %S, i8* nocapture %P) readonly declare void @llvm.lifetime.end.p0i8(i64 %S, i8* nocapture %P)