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Implement a demangleable strong ownership symbol mangling. * The original module symbol mangling scheme turned out to be undemangleable. * The hoped-for C++17 compatibility of weak ownership turns out to be fragile * C++20 now has better ways of controlling C++17 compatibility The issue is captured on the ABI list at: https://github.com/itanium-cxx-abi/cxx-abi/issues/134 GCC implements this new mangling. The old mangling is unceremoniously dropped. No backwards compatibility, no deprectated old-mangling flag. It was always labelled experimental. (Old and new manglings cannot be confused.) Reviewed By: dblaikie Differential Revision: https://reviews.llvm.org/D122256
19 lines
387 B
C++
19 lines
387 B
C++
// RUN: %clang_cc1 -std=c++20 %s -triple %itanium_abi_triple -emit-llvm -o - | FileCheck %s
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// module-purview extern "C++" semantics not implemented
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// XFAIL: *
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export module FOO;
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extern "C++" export class A;
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export class B;
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// CHECK-DAG: void @_ZW3FOO3FooP1APNS_1B(
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export void Foo (A *, B*) {
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}
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extern "C++" {
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// CHECK-DAG: void @_Z3BarP1APW3FOO1B(
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export void Bar (A *, B*) {
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}
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}
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