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From: "luoxhu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/103802] New: [12 regression] recip-3.c fails after  r12-6087 on Power m32
Date: Wed, 22 Dec 2021 08:56:44 +0000	[thread overview]
Message-ID: <bug-103802-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103802

            Bug ID: 103802
           Summary: [12 regression] recip-3.c fails after  r12-6087 on
                    Power m32
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: luoxhu at gcc dot gnu.org
  Target Milestone: ---

Invoking the compiler as /home/luoxhu/workspace/gcc-master_build/gcc/xgcc
-B/home/luoxhu/workspace/gcc-master_build/gcc/
/home/luoxhu/workspace/gcc-master/gcc/testsuite/gcc.dg/tree-ssa/recip-3.c 
-fdiagnostics-plain-output   -O1 -fno-trapping-math -funsafe-math-optimizations
-fdump-tree-recip -S  -m32  -o recip-3.s
Executing on host: /home/luoxhu/workspace/gcc-master_build/gcc/xgcc
-B/home/luoxhu/workspace/gcc-master_build/gcc/
/home/luoxhu/workspace/gcc-master/gcc/testsuite/gcc.dg/tree-ssa/recip-3.c 
-fdiagnostics-plain-output   -O1 -fno-trapping-math -funsafe-math-optimizations
-fdump-tree-recip -S  -m32  -o recip-3.s    (timeout = 300)
gcc.dg/tree-ssa/recip-3.c: pattern found 3 times
FAIL: gcc.dg/tree-ssa/recip-3.c scan-tree-dump-times recip " / " 5


Reson is m32 fail to cunroll due to
 recip-3.m32.c.172t.cunroll:   Not unrolling loop 1: size would grow.

             reply	other threads:[~2021-12-22  8:56 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-22  8:56 luoxhu at gcc dot gnu.org [this message]
2021-12-22  9:06 ` [Bug middle-end/103802] " pinskia at gcc dot gnu.org
2021-12-27  2:42 ` [Bug tree-optimization/103802] " luoxhu at gcc dot gnu.org
2021-12-27  3:03 ` luoxhu at gcc dot gnu.org
2021-12-28 19:02 ` jakub at gcc dot gnu.org
2021-12-29  2:29 ` luoxhu at gcc dot gnu.org
2022-01-03 12:11 ` rguenth at gcc dot gnu.org
2022-01-07  7:40 ` luoxhu at gcc dot gnu.org
2022-01-10  9:24 ` rguenther at suse dot de
2022-01-11  8:37 ` luoxhu at gcc dot gnu.org

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