microsoft-abi-try-throw.cpp
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fcxx-exceptions -fexceptions -fno-rtti -DTRY | FileCheck %s -check-prefix=TRY
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fcxx-exceptions -fexceptions -fno-rtti -DTHROW | FileCheck %s -check-prefix=THROW
// THROW-DAG: @"??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
// THROW-DAG: @"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"??_R0H@8" to i8*), i32 0, i32 -1, i32 0, i32 4, i8* null }, section ".xdata", comdat
// THROW-DAG: @_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x %eh.CatchableType*] [%eh.CatchableType* @"_CT??_R0H@84"] }, section ".xdata", comdat
// THROW-DAG: @_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i8* null, i8* null, i8* bitcast (%eh.CatchableTypeArray.1* @_CTA1H to i8*) }, section ".xdata", comdat
void external();
inline void not_emitted() {
throw int(13); // no error
}
int main() {
int rv = 0;
#ifdef TRY
try {
external(); // TRY: invoke void @"?external@@YAXXZ"
} catch (int) {
rv = 1;
// TRY: catchpad within {{.*}} [%rtti.TypeDescriptor2* @"??_R0H@8", i32 0, i8* null]
// TRY: catchret
}
#endif
#ifdef THROW
// THROW: store i32 42, i32* %[[mem_for_throw:.*]], align 4
// THROW: %[[cast:.*]] = bitcast i32* %[[mem_for_throw]] to i8*
// THROW: call void @_CxxThrowException(i8* %[[cast]], %eh.ThrowInfo* @_TI1H)
throw int(42);
#endif
return rv;
}
#ifdef TRY
// TRY-LABEL: define dso_local void @"?qual_catch@@YAXXZ"
void qual_catch() {
try {
external();
} catch (const int *) {
}
// TRY: catchpad within {{.*}} [%rtti.TypeDescriptor4* @"??_R0PAH@8", i32 1, i8* null]
// TRY: catchret
}
#endif