clang/test/CodeGenCXX/unwind-inline-asm.cpp

   1 // RUN: %clang_cc1 -triple x86_64-unknown-linux -emit-llvm -DUNWIND -fcxx-exceptions -fexceptions -o - %s | FileCheck -check-prefixes CHECK,CHECK-UNWIND %s
   2 // RUN: %clang_cc1 -triple x86_64-unknown-linux -emit-llvm -fcxx-exceptions -fexceptions -o - %s | FileCheck -check-prefixes CHECK,CHECK-NO-UNWIND %s
   3
   4 extern "C" void printf(const char *fmt, ...);
   5
   6 struct DropBomb {
   7   bool defused = false;
   8
   9   ~DropBomb() {
  10     if (defused) {
  11       return;
  12     }
  13     printf("Boom!\n");
  14   }
  15 };
  16
  17 extern "C" void trap() {
  18   throw "Trap";
  19 }
  20
  21 // CHECK: define dso_local void @test()
  22 extern "C" void test() {
  23   DropBomb bomb;
  24 // CHECK-UNWIND: invoke void asm sideeffect unwind "call trap"
  25 // CHECK-NO-UNWIND: call void asm sideeffect "call trap"
  26 #ifdef UNWIND
  27   asm volatile("call trap" ::
  28                    : "unwind");
  29 #else
  30   asm volatile("call trap" ::
  31                    :);
  32 #endif
  33   bomb.defused = true;
  34 }