https://llvm.org/bugs/show_bug.cgi?id=28423
Bug ID: 28423
Summary: error: too many arguments to function call, expected
single argument '__pq', have 2 arguments void
swap(priority_queue __pq) noexcept(noexcept(swap(comp,
comp)));
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Modules
Assignee: unassignedclangb...@nondot.org
Reporter: biancacristinacriste...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
This issue is seen when building llvm self-hosted with libstdc++.
The invocation is:
"/home/biancacr/clang_build_/inst/bin/clang-3.9" -cc1 -D
__STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I
includes/home/biancacr/clang_build_/objmod/lib/CodeGen -I
includes/home/biancacr/clang_build_/src/lib/CodeGen -I
includes/home/biancacr/clang_build_/objmod/include -I
includes/home/biancacr/clang_build_/src/include -I
includes/usr/include/c++/5.2.1 -I
includes/usr/include/x86_64-linux-gnu/c++/5.2.1 -I
includes/usr/include/x86_64-linux-gnu/c++/5.2.1 -I includes/usr/local/include
-I includes/home/biancacr/clang_build_/inst/lib/clang/3.9.0/include -I
includes/usr/include/x86_64-linux-gnu -I includes/usr/include -std=c++11
-fmodules -fimplicit-module-maps -fmodules-cache-path=./module.cache
-fmodules-local-submodule-visibility LiveDebugValues.cpp
It seems like there is a misbehaviour between how the:
#pragma GCC system_header
is treated in the non-module case and in the modules case.
The reproducer needs to use namespace std{} as well. There might be a specific
code path that is taken only in the case of std.
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