maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/test/CodeGenObjC/terminate.m

30 lines
1.4 KiB
Mathematica
Raw Normal View History

Restructure how the driver communicates information about the target Objective-C runtime down to the frontend: break this down into a single target runtime kind and version, and compute all the relevant information from that. This makes it relatively painless to add support for new runtimes to the compiler. Make the new -cc1 flag, -fobjc-runtime=blah-x.y.z, available at the driver level as a better and more general alternative to -fgnu-runtime and -fnext-runtime. This new concept of an Objective-C runtime also encompasses what we were previously separating out as the "Objective-C ABI", so fragile vs. non-fragile runtimes are now really modelled as different kinds of runtime, paving the way for better overall differentiation. As a sort of special case, continue to accept the -cc1 flag -fobjc-runtime-has-weak, as a sop to PLCompatibilityWeak. I won't go so far as to say "no functionality change", even ignoring the new driver flag, but subtle changes in driver semantics are almost certainly not intended. llvm-svn: 158793
2012-06-20 14:18:46 +08:00
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.8 -emit-llvm -fexceptions -fobjc-exceptions -o - %s | FileCheck %s -check-prefix=CHECK-WITH
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fobjc-runtime=macosx-fragile-10.7 -emit-llvm -fexceptions -fobjc-exceptions -o - %s | FileCheck %s -check-prefix=CHECK-WITHOUT
Call objc_terminate() instead of abort() when a cleanup throws an exception in Objective-C; in Objective-C++ we still use std::terminate(). This is only available in very recent runtimes. llvm-svn: 134456
2011-07-06 09:22:26 +08:00
void destroy(void**);
// rdar://problem/9519113
void test0(void) {
void test0_helper(void);
void *ptr __attribute__((cleanup(destroy)));
test0_helper();
// CHECK-WITH: define void @test0()
// CHECK-WITH: [[PTR:%.*]] = alloca i8*,
// CHECK-WITH: call void @destroy(i8** [[PTR]])
// CHECK-WITH-NEXT: ret void
// CHECK-WITH: invoke void @destroy(i8** [[PTR]])
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-WITH: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
// CHECK-WITH-NEXT: catch i8* null
Call objc_terminate() instead of abort() when a cleanup throws an exception in Objective-C; in Objective-C++ we still use std::terminate(). This is only available in very recent runtimes. llvm-svn: 134456
2011-07-06 09:22:26 +08:00
// CHECK-WITH-NEXT: call void @objc_terminate()
// CHECK-WITHOUT: define void @test0()
// CHECK-WITHOUT: [[PTR:%.*]] = alloca i8*,
// CHECK-WITHOUT: call void @destroy(i8** [[PTR]])
// CHECK-WITHOUT-NEXT: ret void
// CHECK-WITHOUT: invoke void @destroy(i8** [[PTR]])
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-WITHOUT: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gcc_personality_v0 to i8*)
// CHECK-WITHOUT-NEXT: catch i8* null
Call objc_terminate() instead of abort() when a cleanup throws an exception in Objective-C; in Objective-C++ we still use std::terminate(). This is only available in very recent runtimes. llvm-svn: 134456
2011-07-06 09:22:26 +08:00
// CHECK-WITHOUT-NEXT: call void @abort()
}