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llvm-project/clang/test/CodeGenObjCXX/arc-marker-funclet.mm

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[CodeGen] Add funclet token to ARC marker The inline assembly generated for the ARC autorelease elision marker must have a funclet token if it's emitted inside a funclet, otherwise the inline assembly (and all subsequent code in the funclet) will be marked unreachable. r324689 fixed this issue for regular inline assembly blocks. Note that clang only emits the marker at -O0, so this only fixes that case. The optimizations case (where the marker is emitted by the backend) will be fixed in a separate change. Differential Revision: https://reviews.llvm.org/D44640 llvm-svn: 327892
2018-03-20 03:34:39 +08:00
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fobjc-runtime=ios-6.0 -fobjc-arc \
// RUN: -fexceptions -fcxx-exceptions -emit-llvm -o - %s | FileCheck %s
id f();
void g() {
try {
f();
} catch (...) {
f();
}
}
[AST] Revert mangling changes from r339428 As discussed in https://reviews.llvm.org/D50144, we want Obj-C classes to have the same mangling as C++ structs, to support headers like the following: ``` @class I; struct I; void f(I *); ``` since the header can be used from both C++ and Obj-C++ TUs, and we want a consistent mangling across the two to prevent link errors. Itanium mangles both the same way, and so should the MS ABI. The main concern with having the same mangling for C++ structs and Obj-C classes was that we want to treat them differently for the purposes of exception handling, e.g. we don't want a C++ catch statement for a struct to be able to catch an Obj-C class with the same name as the struct. We can accomplish this by mangling Obj-C class names differently in their RTTI, which I'll do in a follow-up patch. Differential Revision: https://reviews.llvm.org/D52581 llvm-svn: 343808
2018-10-05 03:50:14 +08:00
// CHECK: call i8* @"?f@@YAPAUobjc_object@@XZ"() [ "funclet"(token %1) ]
[CodeGen] Add funclet token to ARC marker The inline assembly generated for the ARC autorelease elision marker must have a funclet token if it's emitted inside a funclet, otherwise the inline assembly (and all subsequent code in the funclet) will be marked unreachable. r324689 fixed this issue for regular inline assembly blocks. Note that clang only emits the marker at -O0, so this only fixes that case. The optimizations case (where the marker is emitted by the backend) will be fixed in a separate change. Differential Revision: https://reviews.llvm.org/D44640 llvm-svn: 327892
2018-03-20 03:34:39 +08:00
// CHECK-NEXT: call void asm sideeffect "movl{{.*}}%ebp, %ebp{{.*}}", ""() [ "funclet"(token %1) ]
// The corresponding f() call was invoked from the entry basic block.
// CHECK: call void asm sideeffect "movl{{.*}}%ebp, %ebp{{.*}}", ""(){{$}}