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