6e1ab3a431
Close https://github.com/llvm/llvm-project/issues/172241 Close https://github.com/llvm/llvm-project/issues/64034 Close https://github.com/llvm/llvm-project/issues/149404 Close https://github.com/llvm/llvm-project/issues/174858 After this patch, we (the clang dev) no longer assumes there are at most one definition in a redeclaration chain. See https://discourse.llvm.org/t/rfc-clang-not-assuming-there-is-at-most-one-definition-in-a-redeclaration-chain/89360 for details. --- Update since last commit: Previously I remove the code to update visibility accidently. This is the root cause of the failure. --- Update since last commit: Still demote var definition as declaration if it is in headers. This is meant to avoid https://github.com/llvm/llvm-project/issues/181076 See the comments in ASTDeclReader::attachPreviousDeclImpl . Close https://github.com/llvm/llvm-project/issues/181076
48 lines
1.0 KiB
C++
48 lines
1.0 KiB
C++
// RUN: rm -rf %t
|
|
// RUN: mkdir -p %t
|
|
// RUN: split-file %s %t
|
|
//
|
|
// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple %t/m.cppm -emit-module-interface -o %t/m.pcm
|
|
// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple %t/use.cpp -fmodule-file=m=%t/m.pcm -emit-llvm -o - | FileCheck %t/use.cpp
|
|
//
|
|
// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple %t/m.cppm -emit-reduced-module-interface -o %t/m.pcm
|
|
// RUN: %clang_cc1 -std=c++20 -triple %itanium_abi_triple %t/use.cpp -fmodule-file=m=%t/m.pcm -emit-llvm -o - | FileCheck %t/use.cpp
|
|
|
|
//--- header.h
|
|
#pragma once
|
|
|
|
template <unsigned T>
|
|
class Templ {
|
|
public:
|
|
void lock() { __set_locked_bit(); }
|
|
|
|
private:
|
|
static constexpr auto __set_locked_bit = [](){};
|
|
};
|
|
|
|
class JT {
|
|
public:
|
|
~JT() {
|
|
Templ<4> state;
|
|
state.lock();
|
|
}
|
|
};
|
|
|
|
//--- m.cppm
|
|
module;
|
|
#include "header.h"
|
|
export module m;
|
|
export struct M {
|
|
JT jt;
|
|
};
|
|
//--- use.cpp
|
|
#include "header.h"
|
|
import m;
|
|
|
|
int main() {
|
|
M m;
|
|
return 0;
|
|
}
|
|
|
|
// CHECK: @_ZN5TemplILj4EE16__set_locked_bitE = {{.*}}linkonce_odr
|