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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/103489] [11/12 Regression] ICE with -O3 in operator[], at vec.h:889
Date: Tue, 30 Nov 2021 14:01:35 +0000 [thread overview]
Message-ID: <bug-103489-4-aGZ5NSwz3G@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-103489-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103489
--- Comment #5 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:0194d92c35ca8b3aa850b805d9becb4491cf6bec
commit r12-5626-g0194d92c35ca8b3aa850b805d9becb4491cf6bec
Author: Richard Biener <rguenther@suse.de>
Date: Tue Nov 30 14:08:19 2021 +0100
tree-optimization/103489 - fix ICE when bool pattern recog fails
bool pattern recog currently does not handle cycles correctly
and when it fails we can ICE later vectorizing PHIs with
mismatched bool and non-bool vector types. The following avoids
blindly trusting bool pattern recog here and verifies things
more thoroughly in vectorizable_phi. A bool pattern recog fix
is for GCC 13.
2021-11-30 Richard Biener <rguenther@suse.de>
PR tree-optimization/103489
* tree-vect-loop.c (vectorizable_phi): Verify argument
vector type compatibility to mitigate bool pattern recog
bug.
* gcc.dg/torture/pr103489.c: New testcase.
next prev parent reply other threads:[~2021-11-30 14:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-30 9:20 [Bug tree-optimization/103489] New: " vsevolod.livinskij at frtk dot ru
2021-11-30 12:24 ` [Bug tree-optimization/103489] [12 Regression] " rguenth at gcc dot gnu.org
2021-11-30 13:06 ` rguenth at gcc dot gnu.org
2021-11-30 13:12 ` [Bug tree-optimization/103489] [11/12 " rguenth at gcc dot gnu.org
2021-11-30 13:15 ` rguenth at gcc dot gnu.org
2021-11-30 14:01 ` cvs-commit at gcc dot gnu.org [this message]
2021-11-30 14:01 ` [Bug tree-optimization/103489] [11 " rguenth at gcc dot gnu.org
2021-11-30 14:13 ` [Bug tree-optimization/103489] [11 Regression] ICE with -O3 in operator[], at vec.h:889 since r12-5394-g0fc859f5efcb4624 marxin at gcc dot gnu.org
2021-11-30 14:23 ` rguenth at gcc dot gnu.org
2022-01-28 14:16 ` cvs-commit at gcc dot gnu.org
2022-01-28 14:16 ` rguenth at gcc dot gnu.org
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