https://bugs.llvm.org/show_bug.cgi?id=33446
Bug ID: 33446
Summary: COFF: LLD fails to discard associative comdat sections
with /OPT:NOREF
Product: lld
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: COFF
Assignee: unassignedb...@nondot.org
Reporter: r...@google.com
CC: llvm-bugs@lists.llvm.org
The following test case should print "in ctor" once, but it prints twice:
$ cat a.cpp
extern "C" int puts(const char *);
struct Foo {
Foo() : x(42) { puts("in ctor"); }
int x;
};
Foo __declspec(selectany) f;
$ cat b.cpp
#include "a.cpp"
int main() {
puts("main");
return f.x;
}
$ cl -c a.cpp b.cpp && lld-link -opt:noref a.obj b.obj -out:t.exe && ./t.exe ;
echo $?
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x64
Copyright (C) Microsoft Corporation. All rights reserved.
a.cpp
b.cpp
Generating Code...
in ctor
in ctor
main
42
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