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From: "s_gccbugzilla at nedprod dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/112339] New: ICE with namespaced attribute on function
Date: Wed, 01 Nov 2023 18:37:18 +0000
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X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 14.0
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X-Bugzilla-Severity: normal
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X-Bugzilla-Status: UNCONFIRMED
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112339

            Bug ID: 112339
           Summary: ICE with namespaced attribute on function
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: s_gccbugzilla at nedprod dot com
  Target Milestone: ---

This, if compiled with trunk GCC or any recent major version of GCC:

```
[[clang::no_sanitize("bounds")]] void foo()=20
{
}
```

... with options `-Wno-attributes=3Dclang::no_sanitize -fsanitize=3Dundefin=
ed`
produces ICE:

```
<source>: In function 'void foo()':
<source>:3:1: internal compiler error: in tree_to_uhwi, at tree.cc:6469
    3 | }
      | ^
0x266430e internal_error(char const*, ...)
        ???:0
0xb01c2c fancy_abort(char const*, int, char const*)
        ???:0
0xb97938 cp_genericize(tree_node*)
        ???:0
0xbe33ef finish_function(bool)
        ???:0
0xcebe49 c_parse_file()
        ???:0
0xe2ceb9 c_common_parse_file()
        ???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
```

Godbolt demo: https://godbolt.org/z/hs3xqeqn1=