File: temporary-lifetime-exceptions.cpp

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (22 lines) | stat: -rw-r--r-- 846 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
// RUN: %clang_cc1 %s -fexceptions -fcxx-exceptions -std=c++11 -O1 -triple x86_64 -emit-llvm -o - | FileCheck %s

// lifetime.end should be invoked even if the destructor doesn't run due to an
// exception thrown from previous ctor call.

struct A { A(); ~A(); };
A Baz(const A&);

void Test1() {
  // CHECK-LABEL: @_Z5Test1v(
  // CHECK: call void @llvm.lifetime.start.p0(i64 1, ptr nonnull [[TMP:[^ ]+]])
  // CHECK: call void @llvm.lifetime.start.p0(i64 1, ptr nonnull [[TMP1:[^ ]+]])

  // Normal exit
  // CHECK: call void @llvm.lifetime.end.p0(i64 1, ptr nonnull [[TMP1]])
  // CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 1, ptr nonnull [[TMP]])

  // Exception exit
  // CHECK: call void @llvm.lifetime.end.p0(i64 1, ptr nonnull [[TMP1]])
  // CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 1, ptr nonnull [[TMP]])
  Baz(Baz(A()));
}