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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/102892] [12 Regression] Dead Code Elimination Regression at -O3 (trunk vs 11.2.0) Date: Mon, 28 Mar 2022 09:18:32 +0000 [thread overview] Message-ID: <bug-102892-4-irUd9bFvLn@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-102892-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102892 Eric Botcazou <ebotcazou at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ebotcazou at gcc dot gnu.org Resolution|FIXED |--- Status|RESOLVED |REOPENED --- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- The test fails (to link) on SPARC though, here's the .optimized dump at -O3: ;; Function main (main, funcdef_no=0, decl_uid=1488, cgraph_uid=1, symbol_order=1) (executed once) Removing basic block 8 Removing basic block 9 Removing basic block 10 Removing basic block 11 int main () { unsigned int ivtmp.8; long int a; long int _1; void * _2; unsigned int _17; <bb 2> [local count: 44232128]: if (a_9(D) != 1) goto <bb 6>; [89.00%] else goto <bb 7>; [11.00%] <bb 3> [local count: 715863673]: # ivtmp.8_23 = PHI <ivtmp.8_24(5), ivtmp.8_7(6)> bar (); _2 = (void *) ivtmp.8_23; _1 = MEM[(long int *)_2]; if (_1 == 1) goto <bb 4>; [20.24%] else goto <bb 5>; [79.76%] <bb 4> [local count: 144890806]: foo (); <bb 5> [local count: 715863674]: ivtmp.8_24 = ivtmp.8_23 + 4; if (_17 != ivtmp.8_24) goto <bb 3>; [66.67%] else goto <bb 7>; [33.33%] <bb 6> [local count: 238597362]: ivtmp.8_7 = (unsigned int) &b; _17 = ivtmp.8_7 + 8; goto <bb 3>; [100.00%] <bb 7> [local count: 44232131]: return 0; }
next prev parent reply other threads:[~2022-03-28 9:18 UTC|newest] Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-10-22 9:39 [Bug tree-optimization/102892] New: " theodort at inf dot ethz.ch 2021-10-22 9:48 ` [Bug tree-optimization/102892] " aldyh at gcc dot gnu.org 2021-10-22 21:19 ` pinskia at gcc dot gnu.org 2021-10-23 9:29 ` aldyh at gcc dot gnu.org 2021-11-10 14:24 ` marxin at gcc dot gnu.org 2021-11-10 15:42 ` aldyh at gcc dot gnu.org 2021-11-10 15:46 ` marxin at gcc dot gnu.org 2021-11-10 15:52 ` aldyh at gcc dot gnu.org 2021-11-10 19:27 ` cvs-commit at gcc dot gnu.org 2022-03-28 9:18 ` ebotcazou at gcc dot gnu.org [this message] 2022-03-28 14:37 ` aldyh at gcc dot gnu.org 2022-03-28 14:55 ` jakub at gcc dot gnu.org 2022-04-22 3:04 ` jiawei at iscas dot ac.cn 2022-05-04 0:50 ` [Bug tree-optimization/102892] [12/13 " palmer at gcc dot gnu.org 2022-05-04 0:50 ` palmer at gcc dot gnu.org 2022-05-04 11:58 ` jiawei at iscas dot ac.cn 2022-05-06 8:31 ` jakub at gcc dot gnu.org 2022-07-26 13:21 ` rguenth at gcc dot gnu.org 2022-09-29 22:34 ` cvs-commit at gcc dot gnu.org 2022-10-19 9:42 ` cvs-commit at gcc dot gnu.org 2022-10-19 9:43 ` rguenth at gcc dot gnu.org
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