c8714d284a
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
18 lines
552 B
Plaintext
18 lines
552 B
Plaintext
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fobjc-runtime=ios-6.0 -fobjc-arc \
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// RUN: -fexceptions -fcxx-exceptions -emit-llvm -o - %s | FileCheck %s
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id f();
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void g() {
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try {
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f();
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} catch (...) {
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f();
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}
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}
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// CHECK: call i8* @"?f@@YAPAUobjc_object@@XZ"() [ "funclet"(token %1) ]
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// CHECK-NEXT: call void asm sideeffect "movl{{.*}}%ebp, %ebp{{.*}}", ""() [ "funclet"(token %1) ]
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// The corresponding f() call was invoked from the entry basic block.
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// CHECK: call void asm sideeffect "movl{{.*}}%ebp, %ebp{{.*}}", ""(){{$}}
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