clang/test/CXX/drs/cwg462.cpp

   1 // RUN: %clang_cc1 -std=c++98 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   2 // RUN: %clang_cc1 -std=c++11 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   3 // RUN: %clang_cc1 -std=c++14 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   4 // RUN: %clang_cc1 -std=c++17 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   5 // RUN: %clang_cc1 -std=c++20 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   6 // RUN: %clang_cc1 -std=c++23 %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   7 // RUN: %clang_cc1 -std=c++2c %s -triple x86_64-linux-gnu -emit-llvm -o - -fexceptions -fcxx-exceptions -pedantic-errors | llvm-cxxfilt -n | FileCheck %s --check-prefixes CHECK
   8
   9 #if __cplusplus == 199711L
  10 #define NOTHROW throw()
  11 #else
  12 #define NOTHROW noexcept(true)
  13 #endif
  14
  15 namespace cwg462 { // cwg462: 2.7
  16
  17 struct A {
  18   ~A() NOTHROW {}
  19 };
  20
  21 extern void full_expr_fence() NOTHROW;
  22
  23 void f() {
  24   const A& r = (3, A());
  25   full_expr_fence();
  26 }
  27
  28 } // namespace cwg462
  29
  30 // CHECK-LABEL: define {{.*}} void @cwg462::f()()
  31 // CHECK:         call void @cwg462::full_expr_fence()()
  32 // CHECK:         call void @cwg462::A::~A()
  33 // CHECK-LABEL: }