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From: "danglin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/106458] [12/13 Regression] glibc's malloc/tst-scratch_buffer.c test is miscompiled with gcc-12
Date: Thu, 04 Aug 2022 14:14:10 +0000 [thread overview]
Message-ID: <bug-106458-4-UOBjT1U1Rc@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106458-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106458
John David Anglin <danglin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|target |tree-optimization
--- Comment #8 from John David Anglin <danglin at gcc dot gnu.org> ---
This bug was introduced in the following commit:
dave@atlas:~/gnu/gcc/gcc$ git bisect bad
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[2b8453c401b699ed93c085d0413ab4b5030bcdb8] Enable auto-vectorization at O2 with
very-cheap cost model.
dave@atlas:~/gnu/gcc/gcc$ git log
commit 2b8453c401b699ed93c085d0413ab4b5030bcdb8 (HEAD)
Author: liuhongt <hongtao.liu@intel.com>
Date: Mon Sep 6 13:48:49 2021 +0800
Enable auto-vectorization at O2 with very-cheap cost model.
gcc/ChangeLog:
* common.opt (ftree-vectorize): Add Var(flag_tree_vectorize).
* doc/invoke.texi (Options That Control Optimization): Update
documents.
* opts.c (default_options_table): Enable auto-vectorization at
O2 with very-cheap cost model.
(finish_options): Use cheap cost model for
explicit -ftree{,-loop}-vectorize.
gcc/testsuite/ChangeLog:
* c-c++-common/Wstringop-overflow-2.c: Adjust testcase.
* g++.dg/tree-ssa/pr81408.C: Ditto.
* g++.dg/warn/Wuninitialized-13.C: Ditto.
* gcc.dg/Warray-bounds-51.c: Ditto.
* gcc.dg/Warray-parameter-3.c: Ditto.
dave@atlas:~/gnu/gcc/gcc$ git bisect bad
2b8453c401b699ed93c085d0413ab4b5030bcdb8 is the first bad commit
commit 2b8453c401b699ed93c085d0413ab4b5030bcdb8
Author: liuhongt <hongtao.liu@intel.com>
Date: Mon Sep 6 13:48:49 2021 +0800
Enable auto-vectorization at O2 with very-cheap cost model.
gcc/ChangeLog:
* common.opt (ftree-vectorize): Add Var(flag_tree_vectorize).
* doc/invoke.texi (Options That Control Optimization): Update
documents.
* opts.c (default_options_table): Enable auto-vectorization at
O2 with very-cheap cost model.
(finish_options): Use cheap cost model for
explicit -ftree{,-loop}-vectorize.
gcc/testsuite/ChangeLog:
* c-c++-common/Wstringop-overflow-2.c: Adjust testcase.
* g++.dg/tree-ssa/pr81408.C: Ditto.
* g++.dg/warn/Wuninitialized-13.C: Ditto.
* gcc.dg/Warray-bounds-51.c: Ditto.
* gcc.dg/Warray-parameter-3.c: Ditto.
* gcc.dg/Wstringop-overflow-14.c: Ditto.
* gcc.dg/Wstringop-overflow-21.c: Ditto.
* gcc.dg/Wstringop-overflow-68.c: Ditto.
* gcc.dg/Wstringop-overflow-76.c: Ditto.
* gcc.dg/gomp/pr46032-2.c: Ditto.
* gcc.dg/gomp/pr46032-3.c: Ditto.
* gcc.dg/gomp/simd-2.c: Ditto.
* gcc.dg/gomp/simd-3.c: Ditto.
* gcc.dg/graphite/fuse-1.c: Ditto.
* gcc.dg/pr67089-6.c: Ditto.
* gcc.dg/pr82929-2.c: Ditto.
* gcc.dg/pr82929.c: Ditto.
* gcc.dg/store_merging_1.c: Ditto.
* gcc.dg/store_merging_11.c: Ditto.
* gcc.dg/store_merging_13.c: Ditto.
* gcc.dg/store_merging_15.c: Ditto.
* gcc.dg/store_merging_16.c: Ditto.
* gcc.dg/store_merging_19.c: Ditto.
* gcc.dg/store_merging_24.c: Ditto.
* gcc.dg/store_merging_25.c: Ditto.
* gcc.dg/store_merging_28.c: Ditto.
* gcc.dg/store_merging_30.c: Ditto.
* gcc.dg/store_merging_5.c: Ditto.
* gcc.dg/store_merging_7.c: Ditto.
* gcc.dg/store_merging_8.c: Ditto.
* gcc.dg/strlenopt-85.c: Ditto.
* gcc.dg/tree-ssa/dump-6.c: Ditto.
* gcc.dg/tree-ssa/pr19210-1.c: Ditto.
* gcc.dg/tree-ssa/pr47059.c: Ditto.
* gcc.dg/tree-ssa/pr86017.c: Ditto.
* gcc.dg/tree-ssa/pr91482.c: Ditto.
* gcc.dg/tree-ssa/predcom-1.c: Ditto.
* gcc.dg/tree-ssa/predcom-dse-3.c: Ditto.
* gcc.dg/tree-ssa/prefetch-3.c: Ditto.
* gcc.dg/tree-ssa/prefetch-6.c: Ditto.
* gcc.dg/tree-ssa/prefetch-8.c: Ditto.
* gcc.dg/tree-ssa/prefetch-9.c: Ditto.
* gcc.dg/tree-ssa/ssa-dse-18.c: Ditto.
* gcc.dg/tree-ssa/ssa-dse-19.c: Ditto.
* gcc.dg/uninit-40.c: Ditto.
* gcc.dg/unroll-7.c: Ditto.
* gcc.misc-tests/help.exp: Ditto.
* gcc.target/i386/avx512vpopcntdqvl-vpopcntd-1.c: Ditto.
* gcc.target/i386/pr34012.c: Ditto.
* gcc.target/i386/pr49781-1.c: Ditto.
* gcc.target/i386/pr95798-1.c: Ditto.
* gcc.target/i386/pr95798-2.c: Ditto.
* gfortran.dg/pr77498.f: Ditto.
gcc/common.opt | 2 +-
gcc/doc/invoke.texi | 8 ++++----
gcc/opts.c | 16 +++++++++++++---
gcc/testsuite/c-c++-common/Wstringop-overflow-2.c | 20 ++++++++++----------
gcc/testsuite/g++.dg/tree-ssa/pr81408.C | 2 +-
gcc/testsuite/g++.dg/warn/Wuninitialized-13.C | 2 +-
gcc/testsuite/gcc.dg/Warray-bounds-51.c | 2 +-
gcc/testsuite/gcc.dg/Warray-parameter-3.c | 4 ++--
gcc/testsuite/gcc.dg/Wstringop-overflow-14.c | 4 ++--
gcc/testsuite/gcc.dg/Wstringop-overflow-21.c | 8 ++++----
gcc/testsuite/gcc.dg/Wstringop-overflow-68.c | 10 +++++-----
gcc/testsuite/gcc.dg/Wstringop-overflow-76.c | 20 ++++++++++----------
gcc/testsuite/gcc.dg/gomp/pr46032-2.c | 2 +-
gcc/testsuite/gcc.dg/gomp/pr46032-3.c | 2 +-
gcc/testsuite/gcc.dg/gomp/simd-2.c | 2 +-
gcc/testsuite/gcc.dg/gomp/simd-3.c | 2 +-
gcc/testsuite/gcc.dg/graphite/fuse-1.c | 2 +-
gcc/testsuite/gcc.dg/pr67089-6.c | 2 +-
gcc/testsuite/gcc.dg/pr82929-2.c | 2 +-
gcc/testsuite/gcc.dg/pr82929.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_1.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_11.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_13.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_15.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_16.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_19.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_24.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_25.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_28.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_30.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_5.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_7.c | 2 +-
gcc/testsuite/gcc.dg/store_merging_8.c | 2 +-
gcc/testsuite/gcc.dg/strlenopt-85.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/dump-6.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/pr19210-1.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/pr47059.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/pr86017.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/pr91482.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/predcom-1.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/predcom-dse-3.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/prefetch-3.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/prefetch-6.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/prefetch-8.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/prefetch-9.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-18.c | 2 +-
gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-19.c | 2 +-
gcc/testsuite/gcc.dg/uninit-40.c | 2 +-
gcc/testsuite/gcc.dg/unroll-7.c | 2 +-
gcc/testsuite/gcc.misc-tests/help.exp | 2 +-
.../gcc.target/i386/avx512vpopcntdqvl-vpopcntd-1.c | 2 +-
gcc/testsuite/gcc.target/i386/pr34012.c | 2 +-
gcc/testsuite/gcc.target/i386/pr49781-1.c | 2 +-
gcc/testsuite/gcc.target/i386/pr95798-1.c | 2 +-
gcc/testsuite/gcc.target/i386/pr95798-2.c | 2 +-
gcc/testsuite/gfortran.dg/pr77498.f | 2 +-
56 files changed, 98 insertions(+), 88 deletions(-)
next prev parent reply other threads:[~2022-08-04 14:14 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-27 19:40 [Bug target/106458] New: [12 " danglin at gcc dot gnu.org
2022-07-27 19:41 ` [Bug target/106458] " danglin at gcc dot gnu.org
2022-07-27 19:42 ` danglin at gcc dot gnu.org
2022-07-27 19:42 ` danglin at gcc dot gnu.org
2022-07-28 8:12 ` [Bug target/106458] [12/13 " rguenth at gcc dot gnu.org
2022-07-29 12:50 ` dave.anglin at bell dot net
2022-07-29 14:46 ` dave.anglin at bell dot net
2022-07-30 7:09 ` sam at gentoo dot org
2022-08-04 14:14 ` danglin at gcc dot gnu.org [this message]
2022-08-07 22:22 ` [Bug tree-optimization/106458] " danglin at gcc dot gnu.org
2022-08-07 22:23 ` danglin at gcc dot gnu.org
2022-08-10 13:30 ` rguenth at gcc dot gnu.org
2022-08-10 14:53 ` dave.anglin at bell dot net
2022-08-10 17:38 ` dave.anglin at bell dot net
2022-08-10 18:12 ` dave.anglin at bell dot net
2022-08-10 20:53 ` dave.anglin at bell dot net
2022-11-05 20:54 ` danglin at gcc dot gnu.org
2022-11-06 6:39 ` pinskia at gcc dot gnu.org
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