https://sourceware.org/bugzilla/show_bug.cgi?id=32408
Bug ID: 32408
Summary: C++filt fails to demangle some gcc-generated template
mangled names
Product: binutils
Version: 2.42
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: ofekshilon at gmail dot com
Target Milestone: ---
`fun` from this c++ snippet:
```
#include <cstdio>
#include <concepts>
template <std::integral I>
void fun(I i)
{
std::puts("foo<std::integral>()");
}
```
is mangled by gcc to `_Z3funITkSt8integralcEvT_`, and c++filt fails to demangle
it:
$ c++filt _Z3funITkSt8integralcEvT_
_Z3funITkSt8integralcEvT_
godbolt link: https://godbolt.org/z/hcdh67Y5x
BTW when such a template is a specialization of a more general one, the mangled
name has an additional suffix (but c++filt still fails to demangle it). Here:
https://godbolt.org/z/4jMKqjcnc , the mangled name is
_Z3funITkSt8integralcEvT_.isra.0
Raised by @SirWalrus on the compiler-explorer discord:
https://discord.com/channels/763778740345765900/764131312117743656/1312754780875128872
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