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llvm-project/clang/test/CodeGenObjC/gnu-exceptions.m

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Make clang -cc1 disable Objective-C exceptions by default, and add a -fobjc-exceptions flag to turn them on. Update all tests accordingly. llvm-svn: 126177
2011-02-22 09:52:06 +08:00
// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -emit-llvm -fexceptions -fobjc-exceptions -fgnu-runtime -o - %s | FileCheck %s
The GNU-runtime ObjC personality function doesn't let us rethrow with URR for multiple reasons. Rethrow with _objc_exception_throw instead. Fixes PR7656. llvm-svn: 108595
2010-07-17 08:43:08 +08:00
void opaque(void);
void log(int i);
@class C;
// CHECK: define void @test0() {
void test0() {
@try {
// CHECK: invoke void @opaque()
opaque();
Revise cleanup IR generation to fix a major bug with cleanups (PR7686) as well as some significant asymptotic inefficiencies with threading multiple jumps through deep cleanups. llvm-svn: 109274
2010-07-24 05:56:41 +08:00
// CHECK: call void @log(i32 1)
The GNU-runtime ObjC personality function doesn't let us rethrow with URR for multiple reasons. Rethrow with _objc_exception_throw instead. Fixes PR7656. llvm-svn: 108595
2010-07-17 08:43:08 +08:00
} @catch (C *c) {
Throw the switch to convert clang to the new exception handling model! This model uses the 'landingpad' instruction, which is pinned to the top of the landing pad. (A landing pad is defined as the destination of the unwind branch of an invoke instruction.) All of the information needed to generate the correct exception handling metadata during code generation is encoded into the landingpad instruction. The new 'resume' instruction takes the place of the llvm.eh.resume intrinsic call. It's lowered in much the same way as the intrinsic is. llvm-svn: 140049
2011-09-20 04:31:14 +08:00
// CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gnu_objc_personality_v0 to i8*)
// CHECK-NEXT: catch i8* getelementptr inbounds ([2 x i8]* @0, i64 0, i64 0)
// CHECK: br i1
The GNU-runtime ObjC personality function doesn't let us rethrow with URR for multiple reasons. Rethrow with _objc_exception_throw instead. Fixes PR7656. llvm-svn: 108595
2010-07-17 08:43:08 +08:00
// CHECK: call void @log(i32 0)
Revise cleanup IR generation to fix a major bug with cleanups (PR7686) as well as some significant asymptotic inefficiencies with threading multiple jumps through deep cleanups. llvm-svn: 109274
2010-07-24 05:56:41 +08:00
// CHECK: call void @objc_exception_throw
The GNU-runtime ObjC personality function doesn't let us rethrow with URR for multiple reasons. Rethrow with _objc_exception_throw instead. Fixes PR7656. llvm-svn: 108595
2010-07-17 08:43:08 +08:00
log(0);
}
log(1);
}