clang/test/CodeGenCXX/ms-thunks-ehspec.cpp

   1 // RUN: %clang_cc1 -fexceptions -fcxx-exceptions %s -triple=i686-windows-msvc -emit-llvm -o - | FileCheck %s
   2
   3 // When generating thunks using musttail due to inalloca parameters, don't push
   4 // and pop terminate scopes. PR44987
   5
   6 struct NonTrivial {
   7   NonTrivial();
   8   NonTrivial(const NonTrivial &o);
   9   ~NonTrivial();
  10   int x;
  11 };
  12 struct A {
  13   virtual void f(NonTrivial o) noexcept;
  14 };
  15 struct B {
  16   virtual void f(NonTrivial o) noexcept;
  17 };
  18 class C : A, B {
  19   virtual void f(NonTrivial o) noexcept;
  20 };
  21 C c;
  22
  23 // CHECK-LABEL: define linkonce_odr dso_local x86_thiscallcc void @"?f@C@@G3AEXUNonTrivial@@@Z"(ptr noundef %this, ptr inalloca(<{ %struct.NonTrivial }>) %0)
  24 // CHECK-NOT: invoke
  25 // CHECK: musttail call x86_thiscallcc void @"?f@C@@EAEXUNonTrivial@@@Z"(ptr noundef %{{.*}}, ptr inalloca(<{ %struct.NonTrivial }>) %0)
  26 // CHECK-NEXT:  ret void
  27