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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/103194] [12 Regression] ice in optimize_atomic_bit_test_and with __sync_fetch_and_and since r12-5102-gfb161782545224f5 Date: Wed, 24 Nov 2021 01:01:13 +0000 [thread overview] Message-ID: <bug-103194-4-x3gFbshFFv@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-103194-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103194 --- Comment #20 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>: https://gcc.gnu.org/g:7df89377a7ae3906255e38a79be8e5d962c3a0df commit r12-5486-g7df89377a7ae3906255e38a79be8e5d962c3a0df Author: liuhongt <hongtao.liu@intel.com> Date: Tue Nov 16 13:36:36 2021 +0800 Enhance optimize_atomic_bit_test_and to handle truncation. r12-5102-gfb161782545224f5 improves integer bit test on __atomic_fetch_[or|and]_* returns only for nop_convert, .i.e. transfrom mask_5 = 1 << bit_4(D); mask.0_1 = (unsigned int) mask_5; _2 = __atomic_fetch_or_4 (a_7(D), mask.0_1, 0); t1_9 = (int) _2; t2_10 = mask_5 & t1_9; to mask_5 = 1 << n_4(D); mask.1_1 = (unsigned int) mask_5; _11 = .ATOMIC_BIT_TEST_AND_SET (&pscc_a_1_4, n_4(D), 0); _8 = (int) _11; And this patch extend the original patch to handle truncation. .i.e. transform long int mask; mask_8 = 1 << n_7(D); mask.0_1 = (long unsigned int) mask_8; _2 = __sync_fetch_and_or_8 (&pscc_a_2_3, mask.0_1); _3 = (unsigned int) _2; _4 = (unsigned int) mask_8; _5 = _3 & _4; _6 = (int) _5; to long int mask; mask_8 = 1 << n_7(D); mask.0_1 = (long unsigned int) mask_8; _14 = .ATOMIC_BIT_TEST_AND_SET (&pscc_a_2_3, n_7(D), 0); _5 = (unsigned int) _14; _6 = (int) _5; 2021-11-17 Hongtao Liu <hongtao.liu@intel.com> H.J. Lu <hongjiu.lu@intel.com> gcc/ChangeLog: PR tree-optimization/103194 * match.pd (gimple_nop_atomic_bit_test_and_p): Extended to match truncation. * tree-ssa-ccp.c (gimple_nop_convert): Declare. (optimize_atomic_bit_test_and): Enhance optimize_atomic_bit_test_and to handle truncation. gcc/testsuite/ChangeLog: * gcc.target/i386/pr103194-2.c: New test. * gcc.target/i386/pr103194-3.c: New test. * gcc.target/i386/pr103194-4.c: New test. * gcc.target/i386/pr103194-5.c: New test. * gcc.target/i386/pr103194.c: New test.
next prev parent reply other threads:[~2021-11-24 1:01 UTC|newest] Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-11 16:48 [Bug c/103194] New: ice in optimize_atomic_bit_test_and, at tree-ssa-ccp.c:3626 dcb314 at hotmail dot com 2021-11-11 16:50 ` [Bug c/103194] " dcb314 at hotmail dot com 2021-11-11 17:20 ` [Bug tree-optimization/103194] [12 Regression] ice in optimize_atomic_bit_test_and with __sync_fetch_and_and pinskia at gcc dot gnu.org 2021-11-11 18:56 ` hjl.tools at gmail dot com 2021-11-12 7:35 ` rguenth at gcc dot gnu.org 2021-11-12 9:29 ` [Bug tree-optimization/103194] [12 Regression] ice in optimize_atomic_bit_test_and with __sync_fetch_and_and since r12-5102-gfb161782545224f5 marxin at gcc dot gnu.org 2021-11-12 13:43 ` hjl.tools at gmail dot com 2021-11-13 15:04 ` hjl.tools at gmail dot com 2021-11-13 15:11 ` hjl.tools at gmail dot com 2021-11-15 1:23 ` crazylht at gmail dot com 2021-11-15 2:47 ` crazylht at gmail dot com 2021-11-15 8:32 ` crazylht at gmail dot com 2021-11-15 9:06 ` crazylht at gmail dot com 2021-11-15 9:12 ` pinskia at gcc dot gnu.org 2021-11-16 1:30 ` crazylht at gmail dot com 2021-11-16 1:49 ` hjl.tools at gmail dot com 2021-11-16 1:51 ` hjl.tools at gmail dot com 2021-11-16 2:24 ` crazylht at gmail dot com 2021-11-16 2:39 ` hjl.tools at gmail dot com 2021-11-16 3:26 ` hjl.tools at gmail dot com 2021-11-16 6:19 ` crazylht at gmail dot com 2021-11-16 6:45 ` crazylht at gmail dot com 2021-11-24 1:01 ` cvs-commit at gcc dot gnu.org [this message] 2021-11-24 1:02 ` crazylht at gmail dot com 2021-12-15 12:47 ` jakub at gcc dot gnu.org 2021-12-16 1:27 ` crazylht at gmail dot com 2021-12-19 23:47 ` hjl.tools at gmail dot com
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