1 // RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=LIFETIME 2 3 // We shouldn't have markers at -O0 or with msan. 4 // RUN: %clang_cc1 -O0 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s 5 // RUN: %clang_cc1 -O1 -triple x86_64-none-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - -fsanitize=memory | FileCheck %s 6 7 // There is no exception to handle here, lifetime.end is not a destructor, 8 // so there is no need have cleanup dest slot related code 9 // CHECK-LABEL: define i32 @test 10 int test() { 11 int x = 3; 12 int *volatile p = &x; 13 return *p; 14 // CHECK: [[X:%.*]] = alloca i32 15 // CHECK: [[P:%.*]] = alloca i32* 16 // LIFETIME: call void @llvm.lifetime.start(i64 4, i8* %{{.*}}){{( #[0-9]+)?}}, !dbg 17 // LIFETIME: call void @llvm.lifetime.start(i64 8, i8* %{{.*}}){{( #[0-9]+)?}}, !dbg 18 // CHECK-NOT: store i32 %{{.*}}, i32* %cleanup.dest.slot 19 // LIFETIME: call void @llvm.lifetime.end(i64 8, {{.*}}){{( #[0-9]+)?}}, !dbg 20 // LIFETIME: call void @llvm.lifetime.end(i64 4, {{.*}}){{( #[0-9]+)?}}, !dbg 21 } 22
