21e16ab6b8
The existing module symbol mangling scheme turns out to be undemangleable. It is also desirable to switch to the strong-ownership model as the hoped-for C++17 compatibility turns out to be fragile, and we also now have a better way of controlling that. The issue is captured on the ABI list at: https://github.com/itanium-cxx-abi/cxx-abi/issues/134 A document describing the issues and new mangling is at: https://drive.google.com/file/d/1qQjqptzOFT_lfXH8L6-iD9nCRi34wjft/view This patch is the code-generation part. I have a demangler too, but that patch is based on some to-be-landed refactoring of the demangler. 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: ChuanqiXu Differential Revision: https://reviews.llvm.org/D118352
14 lines
567 B
C++
14 lines
567 B
C++
// RUN: %clang_cc1 -std=c++20 %S/cxx20-module-part-1a.cpp -triple %itanium_abi_triple -emit-module-interface -o %t-inter
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// RUN: %clang_cc1 -std=c++20 %S/cxx20-module-part-1b.cpp -triple %itanium_abi_triple -emit-module-interface -o %t-impl
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// RUN: %clang_cc1 -std=c++20 %s -triple %itanium_abi_triple -fmodule-file=Foo:inter=%t-inter -fmodule-file=Foo:impl=%t-impl -emit-llvm -o - | FileCheck %s
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export module Foo;
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export import :inter;
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import :impl;
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void Wrap() {
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// CHECK: call void @_ZW3Foo4Frobv()
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Frob();
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// CHECK: call void @_ZW3Foo4Quuxv()
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Quux();
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}
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