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* [Bug c++/103326] New: constexpr crashing when uses with vector extensions
@ 2021-11-19 3:27 unlvsur at live dot com
2021-11-19 7:50 ` [Bug c++/103326] " rguenth at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: unlvsur at live dot com @ 2021-11-19 3:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103326
Bug ID: 103326
Summary: constexpr crashing when uses with vector extensions
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: unlvsur at live dot com
Target Milestone: ---
using x86_64_v16qi [[gnu::__vector_size__ (16)]] = char;
template<typename T>
void foo()
{
constexpr x86_64_v16qi zero{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0};
}
void foo2()
{
foo<int>();
}
D:\hg\fast_io\.tmp>g++ -S simd_constexpr_crashing.cc -Ofast -std=c++20
-march=native -I../include
simd_constexpr_crashing.cc: In instantiation of 'void foo() [with T = int]':
simd_constexpr_crashing.cc:11:10: required from here
simd_constexpr_crashing.cc:6:32: internal compiler error: in tsubst_copy, at
cp/pt.c:17303
6 | constexpr x86_64_v16qi zero{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0};
| ^~~~
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/103326] constexpr crashing when uses with vector extensions
2021-11-19 3:27 [Bug c++/103326] New: constexpr crashing when uses with vector extensions unlvsur at live dot com
@ 2021-11-19 7:50 ` rguenth at gcc dot gnu.org
2021-11-19 9:36 ` cvs-commit at gcc dot gnu.org
2021-11-19 9:36 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-19 7:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103326
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Last reconfirmed| |2021-11-19
Keywords| |ice-on-valid-code
Status|UNCONFIRMED |ASSIGNED
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.
#1 0x0000000000e6c39a in tsubst_copy (t=<vector_cst 0x7ffff66b9be8>,
args=<tree_vec 0x7ffff66c43c0>, complain=3,
in_decl=<template_decl 0x7ffff66c0000 foo>)
at /home/rguenther/src/gcc3/gcc/cp/pt.c:17303
17303 gcc_unreachable ();
I think I have a simple patch.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/103326] constexpr crashing when uses with vector extensions
2021-11-19 3:27 [Bug c++/103326] New: constexpr crashing when uses with vector extensions unlvsur at live dot com
2021-11-19 7:50 ` [Bug c++/103326] " rguenth at gcc dot gnu.org
@ 2021-11-19 9:36 ` cvs-commit at gcc dot gnu.org
2021-11-19 9:36 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-11-19 9:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103326
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:dd85c42c36a5d4e00b41ed40bca98598a2fb57c5
commit r12-5398-gdd85c42c36a5d4e00b41ed40bca98598a2fb57c5
Author: Richard Biener <rguenther@suse.de>
Date: Fri Nov 19 08:54:18 2021 +0100
c++/103326 - fix ICE in tsubst with VECTOR_CST
This adds missing handling of VECTOR_CST.
2021-11-19 Richard Biener <rguenther@suse.de>
PR c++/103326
* pt.c (tsubst_copy): Handle VECTOR_CST.
* g++.dg/pr103326.C: New testcase.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/103326] constexpr crashing when uses with vector extensions
2021-11-19 3:27 [Bug c++/103326] New: constexpr crashing when uses with vector extensions unlvsur at live dot com
2021-11-19 7:50 ` [Bug c++/103326] " rguenth at gcc dot gnu.org
2021-11-19 9:36 ` cvs-commit at gcc dot gnu.org
@ 2021-11-19 9:36 ` rguenth at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-19 9:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103326
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed on trunk. On branches this is hidden behind checking and it doesn't seem
to be a regression.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-11-19 3:27 [Bug c++/103326] New: constexpr crashing when uses with vector extensions unlvsur at live dot com
2021-11-19 7:50 ` [Bug c++/103326] " rguenth at gcc dot gnu.org
2021-11-19 9:36 ` cvs-commit at gcc dot gnu.org
2021-11-19 9:36 ` rguenth at gcc dot gnu.org
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