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* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
@ 2020-04-08 3:01 ` eric.niebler at gmail dot com
2020-04-08 4:55 ` lewissbaker.opensource at gmail dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: eric.niebler at gmail dot com @ 2020-04-08 3:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
--- Comment #1 from Eric Niebler <eric.niebler at gmail dot com> ---
Still present on trunk, four years later.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
2020-04-08 3:01 ` [Bug c++/70790] Can't mangle noexcept expressions eric.niebler at gmail dot com
@ 2020-04-08 4:55 ` lewissbaker.opensource at gmail dot com
2020-04-08 8:14 ` redi at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: lewissbaker.opensource at gmail dot com @ 2020-04-08 4:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
Lewis Baker <lewissbaker.opensource at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |lewissbaker.opensource@gmai
| |l.com
--- Comment #2 from Lewis Baker <lewissbaker.opensource at gmail dot com> ---
The relevant code seems to live in gcc/cp/mangle.c (at least for IA64 mangling)
Does it just need something like the following inserted into the
write_expression() function?
```
else if (TREE_CODE (expr) == NOEXCEPT_EXPR)
{
write_string ("nx");
write_expression (TREE_OPERAND (expr, 0));
}
```
The "nx" prefix seems to be what LLVM uses for its Itanium mangling.
See
https://github.com/llvm/llvm-project/blob/13a1504ffb9a9a4f82dc1b60d9e8cbb173c7d030/clang/lib/AST/ItaniumMangle.cpp#L4057
Also see example showing this under clang (working) and gcc (failing):
https://godbolt.org/z/yHrZDm
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
2020-04-08 3:01 ` [Bug c++/70790] Can't mangle noexcept expressions eric.niebler at gmail dot com
2020-04-08 4:55 ` lewissbaker.opensource at gmail dot com
@ 2020-04-08 8:14 ` redi at gcc dot gnu.org
2020-04-08 16:45 ` nathan at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 6+ messages in thread
From: redi at gcc dot gnu.org @ 2020-04-08 8:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2020-04-08
Keywords| |FIXME
Status|UNCONFIRMED |NEW
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2020-04-08 8:14 ` redi at gcc dot gnu.org
@ 2020-04-08 16:45 ` nathan at gcc dot gnu.org
2021-05-04 12:31 ` rguenth at gcc dot gnu.org
2023-06-03 13:17 ` cvs-commit at gcc dot gnu.org
5 siblings, 0 replies; 6+ messages in thread
From: nathan at gcc dot gnu.org @ 2020-04-08 16:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
Nathan Sidwell <nathan at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nathan at gcc dot gnu.org
Assignee|unassigned at gcc dot gnu.org |nathan at gcc dot gnu.org
--- Comment #3 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
... so I don't forget. but not a GCC 10 thing
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2020-04-08 16:45 ` nathan at gcc dot gnu.org
@ 2021-05-04 12:31 ` rguenth at gcc dot gnu.org
2023-06-03 13:17 ` cvs-commit at gcc dot gnu.org
5 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-05-04 12:31 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug c++/70790] Can't mangle noexcept expressions
[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2021-05-04 12:31 ` rguenth at gcc dot gnu.org
@ 2023-06-03 13:17 ` cvs-commit at gcc dot gnu.org
5 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-06-03 13:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70790
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:999e617d3121b82921c8031ee695fd036f553f04
commit r14-1516-g999e617d3121b82921c8031ee695fd036f553f04
Author: Patrick Palka <ppalka@redhat.com>
Date: Sat Jun 3 09:03:27 2023 -0400
c++: mangle noexcept-expr [PR70790]
This implements noexcept(expr) mangling and demangling as per the
Itanium ABI.
PR c++/70790
gcc/cp/ChangeLog:
* mangle.cc (write_expression): Handle NOEXCEPT_EXPR.
libiberty/ChangeLog:
* cp-demangle.c (cplus_demangle_operators): Add the noexcept
operator.
(d_print_comp_inner) <case DEMANGLE_COMPONENT_UNARY>: Always
print parens around the operand of noexcept too.
* testsuite/demangle-expected: Test noexcept operator
demangling.
gcc/testsuite/ChangeLog:
* g++.dg/abi/mangle78.C: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
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Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-70790-4@http.gcc.gnu.org/bugzilla/>
2020-04-08 3:01 ` [Bug c++/70790] Can't mangle noexcept expressions eric.niebler at gmail dot com
2020-04-08 4:55 ` lewissbaker.opensource at gmail dot com
2020-04-08 8:14 ` redi at gcc dot gnu.org
2020-04-08 16:45 ` nathan at gcc dot gnu.org
2021-05-04 12:31 ` rguenth at gcc dot gnu.org
2023-06-03 13:17 ` cvs-commit at gcc dot gnu.org
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