67cf035a99
The catch object parameter to llvm.eh.begincatch is optional, and can be null. We can save some ourselves the stack space, copy ctor, and dtor calls if we pass null. llvm-svn: 234264
48 lines
2.1 KiB
C++
48 lines
2.1 KiB
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fcxx-exceptions -fexceptions -fno-rtti -DTRY | FileCheck %s -check-prefix=TRY
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// RUN: %clang_cc1 -emit-llvm %s -o - -triple=i386-pc-win32 -mconstructor-aliases -fcxx-exceptions -fexceptions -fno-rtti -DTHROW | FileCheck %s -check-prefix=THROW
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// THROW-DAG: @"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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// THROW-DAG: @"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i32 -1, i32 0, i32 4, i8* null }, section ".xdata", comdat
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// 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
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// 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
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// TRY-DAG: @llvm.eh.handlertype.PAH.1 = private unnamed_addr constant %eh.CatchHandlerType { i32 1, i8* bitcast (%rtti.TypeDescriptor4* @"\01??_R0PAH@8" to i8*) }, section "llvm.metadata"
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void external();
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inline void not_emitted() {
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throw int(13); // no error
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}
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int main() {
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int rv = 0;
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#ifdef TRY
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try {
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external(); // TRY: invoke void @"\01?external@@YAXXZ"
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} catch (int) {
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rv = 1;
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// TRY: call void @llvm.eh.begincatch(i8* %{{.*}}, i8* null)
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// TRY: call void @llvm.eh.endcatch()
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}
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#endif
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#ifdef THROW
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// THROW: store i32 42, i32* %[[mem_for_throw:.*]]
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// THROW: %[[cast:.*]] = bitcast i32* %[[mem_for_throw]] to i8*
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// THROW: call void @_CxxThrowException(i8* %[[cast]], %eh.ThrowInfo* @_TI1H)
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throw int(42);
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#endif
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return rv;
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}
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#ifdef TRY
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// TRY-LABEL: define void @"\01?qual_catch@@YAXXZ"
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void qual_catch() {
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try {
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external();
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} catch (const int *) {
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}
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// TRY: catch %eh.CatchHandlerType* @llvm.eh.handlertype.PAH.1
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// TRY: call i32 @llvm.eh.typeid.for(i8* bitcast (%eh.CatchHandlerType* @llvm.eh.handlertype.PAH.1 to i8*))
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}
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#endif
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