https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105019
Thomas Schwinge <tschwinge at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Keywords| |testsuite-fail
Ever confirmed|0 |1
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=104957
Last reconfirmed| |2025-08-13
CC| |prathamesh3492 at gcc dot
gnu.org,
| |tschwinge at gcc dot gnu.org
--- Comment #7 from Thomas Schwinge <tschwinge at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #4)
> [...]
> There's a function __f:
> [...]
> with alias f:
> [...]
> called from g:
> [...]
> However, g is unused.
In one of my development trees, I have such a test case
('gcc.target/nvptx/alias-pr105019-1.c'), which I configured:
{ dg-xfail-run-if {Nvidia bug} { nvptx_runtime_alias_ptx } }
If there's a PTX '.alias' that's used from a function that's unused, we
get:
fatal : Internal error: reference to deleted section
nvptx-run: cuLinkComplete failed: unknown error (CUDA_ERROR_UNKNOWN,
999)
... at run time. */
I recently upgraded my laptop with Nvidia Quadro P1000 GPU from Nvidia Driver
545.29.06 to 575.64.03, and now get:
[-XFAIL:-]{+XPASS:+} gcc.target/nvptx/alias-pr105019-1.c execution test
I understand this to mean that the issue cited above is now fixed.
But: the 'gcc.target/nvptx/alias-to-alias-1.c' test case that we'd added for
PR104957 commit r15-3816-gf5ee372b012594830f6d5f7f4b7e01bae810b1da "nvptx:
Partial support for aliases to aliases" regressed:
[-PASS:-]{+FAIL:+} gcc.target/nvptx/alias-to-alias-1.c execution test
... due to:
spawn -ignore SIGHUP [...]/nvptx-none-run ./alias-to-alias-1.exe
fatal : Internal error: reference to deleted symbol
nvptx-run: cuLinkComplete failed: unknown error (CUDA_ERROR_UNKNOWN, 999)
That's because the 'bar' alias is unused. (But confusingly, that wasn't a
problem with the old Nvidia Driver...)
