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From: "malat at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/106187] armhf: Miscompilation at O2 level (O0 / O1 are working)
Date: Fri, 02 Sep 2022 09:28:12 +0000	[thread overview]
Message-ID: <bug-106187-4-avaxnViL7O@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106187-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106187

--- Comment #53 from Mathieu Malaterre <malat at debian dot org> ---
For later reference, the gcc-11 symptoms disapear in upstream git after commit:

*
https://github.com/google/highway/commit/4fa872a2a0d9944cb5fe761669ac63096607d3a3

gcc-12 seems to be generating wrong-code for a different unit-test:

% tests/mul_test
"--gtest_filter=HwyMulTestGroup/HwyMulTest.TestAllMulHigh/EMU128"
Running main() from ./googletest/src/gtest_main.cc
Note: Google Test filter = HwyMulTestGroup/HwyMulTest.TestAllMulHigh/EMU128
[==========] Running 1 test from 1 test suite.
[----------] Global test environment set-up.
[----------] 1 test from HwyMulTestGroup/HwyMulTest
[ RUN      ] HwyMulTestGroup/HwyMulTest.TestAllMulHigh/EMU128


i16x8 expect [0+ ->]:
  0x3FFF,0x0FFF,0x03FF,0x00FF,0x003F,0x000F,0x0003,
i16x8 actual [0+ ->]:
  0xBFFF,0x0FFF,0xE400,0x00FF,0xF840,0x000F,0xFE04,
Abort at /home/malat/highway/hwy/tests/mul_test.cc:131: EMU128, i16x8 lane 0
mismatch: expected '0x3FFF', got '0xBFFF'.

zsh: abort      tests/mul_test

  parent reply	other threads:[~2022-09-02  9:28 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-04 16:23 [Bug c++/106187] New: armhf: Miscompilation with -O2 mathieu.malaterre at gmail dot com
2022-07-04 16:37 ` [Bug c++/106187] " mathieu.malaterre at gmail dot com
2022-07-04 16:37 ` mathieu.malaterre at gmail dot com
2022-07-04 16:42 ` [Bug c++/106187] armhf: Miscompilation at all optimization levels mathieu.malaterre at gmail dot com
2022-07-04 20:19 ` pinskia at gcc dot gnu.org
2022-07-04 20:22 ` pinskia at gcc dot gnu.org
2022-07-05  7:18 ` [Bug target/106187] " mathieu.malaterre at gmail dot com
2022-07-05  7:46 ` [Bug target/106187] armhf: Miscompilation at O2 level (O0 / O1 are working) jan.wassenberg at gmail dot com
2022-07-05  8:00 ` mathieu.malaterre at gmail dot com
2022-07-07  7:50 ` mathieu.malaterre at gmail dot com
2022-07-07  8:00 ` mathieu.malaterre at gmail dot com
2022-07-07  9:38 ` rearnsha at gcc dot gnu.org
2022-07-08  9:01 ` mathieu.malaterre at gmail dot com
2022-07-08  9:01 ` mathieu.malaterre at gmail dot com
2022-07-08  9:03 ` mathieu.malaterre at gmail dot com
2022-07-08 13:50 ` rearnsha at gcc dot gnu.org
2022-07-08 13:59 ` malat at debian dot org
2022-07-08 14:16 ` rearnsha at gcc dot gnu.org
2022-07-08 14:18 ` malat at debian dot org
2022-07-08 14:51 ` rearnsha at gcc dot gnu.org
2022-07-08 15:03 ` malat at debian dot org
2022-07-08 17:24 ` rearnsha at gcc dot gnu.org
2022-07-08 17:31 ` rearnsha at gcc dot gnu.org
2022-07-08 19:27 ` jan.wassenberg at gmail dot com
2022-07-14 13:03 ` rearnsha at gcc dot gnu.org
2022-07-14 13:18 ` rearnsha at gcc dot gnu.org
2022-07-14 16:09 ` pinskia at gcc dot gnu.org
2022-07-18 15:45 ` rearnsha at gcc dot gnu.org
2022-07-18 15:48 ` rearnsha at gcc dot gnu.org
2022-07-19  7:27 ` rguenth at gcc dot gnu.org
2022-07-19  9:00 ` rearnsha at gcc dot gnu.org
2022-07-19  9:13 ` rguenth at gcc dot gnu.org
2022-07-21  9:25 ` rearnsha at gcc dot gnu.org
2022-07-22 12:52 ` rearnsha at gcc dot gnu.org
2022-07-22 13:24 ` rearnsha at gcc dot gnu.org
2022-07-25  6:12 ` rguenth at gcc dot gnu.org
2022-07-25  9:44 ` rearnsha at gcc dot gnu.org
2022-07-25  9:50 ` rguenther at suse dot de
2022-07-25  9:59 ` rearnsha at gcc dot gnu.org
2022-07-25 10:24 ` rguenth at gcc dot gnu.org
2022-07-25 10:26 ` [Bug rtl-optimization/106187] " rguenth at gcc dot gnu.org
2022-07-25 10:33 ` rearnsha at gcc dot gnu.org
2022-07-25 10:42 ` rguenth at gcc dot gnu.org
2022-07-25 10:48 ` rearnsha at gcc dot gnu.org
2022-07-25 11:03 ` rguenther at suse dot de
2022-07-25 11:05 ` rguenth at gcc dot gnu.org
2022-07-25 13:04 ` rearnsha at gcc dot gnu.org
2022-07-25 14:45 ` rguenther at suse dot de
2022-07-27 13:35 ` rearnsha at gcc dot gnu.org
2022-07-28 16:51 ` rearnsha at gcc dot gnu.org
2022-08-03  9:07 ` cvs-commit at gcc dot gnu.org
2022-08-03  9:16 ` rearnsha at gcc dot gnu.org
2022-08-10  7:06 ` malat at debian dot org
2022-08-10  7:11 ` pinskia at gcc dot gnu.org
2022-09-02  9:28 ` malat at debian dot org [this message]
2022-09-02 12:30 ` cvs-commit at gcc dot gnu.org
2022-09-02 12:32 ` rearnsha at gcc dot gnu.org
2022-09-02 14:07 ` cvs-commit at gcc dot gnu.org
2022-09-27 15:28 ` malat at debian dot org
2022-09-27 15:54 ` rearnsha at gcc dot gnu.org
2024-01-20 17:20 ` pinskia at gcc dot gnu.org

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