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llvm-project/clang/test/CodeGenObjC/blocks-2.m

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Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
// We run this twice, once as Objective-C and once as Objective-C++.
Make -fobjc-nonfragile-abi the -cc1 default, since it's the increasingly prevailing case to the point that new features like ARC don't even support the fragile ABI anymore. This required a little bit of reshuffling with exceptions because a check was assuming that ObjCNonFragileABI was only being set in ObjC mode, and that's actually a bit obnoxious to do. Most, though, it involved a perl script to translate a ton of test cases. Mostly no functionality change for driver users, although there are corner cases with disabling language-specific exceptions that we should handle more correctly now. llvm-svn: 140957
2011-10-02 09:16:38 +08:00
// RUN: %clang_cc1 %s -emit-llvm -o - -fobjc-gc -fblocks -fexceptions -triple i386-apple-darwin10 -fobjc-fragile-abi | FileCheck %s
// RUN: %clang_cc1 %s -emit-llvm -o - -fobjc-gc -fblocks -fexceptions -triple i386-apple-darwin10 -fobjc-fragile-abi -x objective-c++ | FileCheck %s
Initialize Obj-C GC attributes when emitting BlockDeclRefExprs. - Otherwise we may incorrectly miss generation of some write barriers. llvm-svn: 72313
2009-05-23 10:49:02 +08:00
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
// CHECK: define i8* @{{.*}}test0
// CHECK: define internal void @__test0_block_invoke_0(
// CHECK: call i8* @objc_assign_strongCast(
// CHECK-NEXT: ret void
id test0(id x) {
Initialize Obj-C GC attributes when emitting BlockDeclRefExprs. - Otherwise we may incorrectly miss generation of some write barriers. llvm-svn: 72313
2009-05-23 10:49:02 +08:00
__block id result;
^{ result = x; }();
return result;
}
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
// <rdar://problem/8224178>: cleanup __block variables on EH path
// CHECK: define void @{{.*}}test1
void test1() {
extern void test1_help(void (^x)(void));
// CHECK: [[N:%.*]] = alloca [[N_T:%.*]], align 8
// CHECK: [[T0:%.*]] = getelementptr inbounds [[N_T]]* [[N]], i32 0, i32 4
tests: Tweak test to also match MSVC format. llvm-svn: 115969
2010-10-08 04:14:30 +08:00
// CHECK-NEXT: store double 1.000000e+{{0?}}01, double* [[T0]], align 8
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
__block double n = 10;
// CHECK: invoke void @{{.*}}test1_help
test1_help(^{ n = 20; });
The flags we're supposed to write into a byref struct are *not* the _Block_object_* flags; it's just BLOCK_HAS_COPY_DISPOSE or not. Also, we don't need to chase forwarding pointers prior to calling _Block_object_dispose; _Block_object_dispose in fact already does this. rdar://problem/9006315 llvm-svn: 125823
2011-02-18 10:58:31 +08:00
// CHECK: [[T1:%.*]] = bitcast [[N_T]]* [[N]] to i8*
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T1]], i32 8)
// CHECK-NEXT: ret void
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
// CHECK-NEXT: cleanup
The flags we're supposed to write into a byref struct are *not* the _Block_object_* flags; it's just BLOCK_HAS_COPY_DISPOSE or not. Also, we don't need to chase forwarding pointers prior to calling _Block_object_dispose; _Block_object_dispose in fact already does this. rdar://problem/9006315 llvm-svn: 125823
2011-02-18 10:58:31 +08:00
// CHECK: [[T1:%.*]] = bitcast [[N_T]]* [[N]] to i8*
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
// CHECK-NEXT: call void @_Block_object_dispose(i8* [[T1]], i32 8)
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: resume { i8*, i32 }
Re-enable EH cleanups to destroy __block variables, now that we have a moment to deal with the consequences. Fixes rdar://problem/8224178. llvm-svn: 115816
2010-10-07 02:56:43 +08:00
}