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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/98674] [10/11 Regression] vectorizer failed for compilation time alias
Date: Thu, 14 Jan 2021 15:14:13 +0000 [thread overview]
Message-ID: <bug-98674-4-M2w7G2S0Ur@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98674-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98674
--- Comment #7 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:2182274f510c180ea92a4f826a0f6cf5f1f55b66
commit r11-6670-g2182274f510c180ea92a4f826a0f6cf5f1f55b66
Author: Richard Biener <rguenther@suse.de>
Date: Thu Jan 14 14:08:41 2021 +0100
tree-optimization/98674 - improve dependence analysis
This improves dependence analysis on refs that access the same
array but with different typed but same sized accesses. That's
obviously safe for the case of types that cannot have any
access function based off them. For the testcase this is
signed short vs. unsigned short.
2021-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/98674
* tree-data-ref.c (base_supports_access_fn_components_p): New.
(initialize_data_dependence_relation): For two bases without
possible access fns resort to type size equality when determining
shape compatibility.
* gcc.dg/vect/pr98674.c: New testcase.
next prev parent reply other threads:[~2021-01-14 15:14 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 10:19 [Bug tree-optimization/98674] New: [10/11] Regression " crazylht at gmail dot com
2021-01-14 10:55 ` [Bug tree-optimization/98674] " rguenth at gcc dot gnu.org
2021-01-14 12:50 ` rguenth at gcc dot gnu.org
2021-01-14 13:19 ` [Bug tree-optimization/98674] [10/11 Regression] " rguenth at gcc dot gnu.org
2021-01-14 13:26 ` rguenth at gcc dot gnu.org
2021-01-14 13:27 ` rsandifo at gcc dot gnu.org
2021-01-14 13:38 ` rguenther at suse dot de
2021-01-14 15:14 ` cvs-commit at gcc dot gnu.org [this message]
2021-01-14 15:14 ` [Bug tree-optimization/98674] [10 " rguenth at gcc dot gnu.org
2021-01-14 15:14 ` rguenth at gcc dot gnu.org
2021-01-15 2:49 ` crazylht at gmail dot com
2021-01-15 7:56 ` rguenth at gcc dot gnu.org
2021-04-08 12:02 ` rguenth at gcc dot gnu.org
2021-05-04 12:31 ` rguenth at gcc dot gnu.org
2022-06-28 10:43 ` jakub at gcc dot gnu.org
2023-07-07 9:22 ` rguenth at gcc dot gnu.org
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