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From: "hp at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109363] New: [13 Regression]
 gcc.dg/tree-ssa/pr23109.c cris-elf reciptmp with r13-6945-g429a7a88438cc8
Date: Fri, 31 Mar 2023 15:54:16 +0000
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X-Bugzilla-Component: tree-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109363

            Bug ID: 109363
           Summary: [13 Regression] gcc.dg/tree-ssa/pr23109.c cris-elf
                    reciptmp with r13-6945-g429a7a88438cc8
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hp at gcc dot gnu.org
                CC: amacleod at redhat dot com
  Target Milestone: ---
            Target: cris-elf

Created attachment 54799
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54799&action=3Dedit
failing pr23109.c.189t.recip (at r13-6956-ge02c9d9116f2)

With r13-6944-ga23b33a1bdeff7 this test passed.
At r13-6945-g429a7a88438cc8 I see for the first time:
FAIL: gcc.dg/tree-ssa/pr23109.c scan-tree-dump-not recip "reciptmp"

In gcc.log:
Executing on host: /x/cris-elf/gccobj/gcc/xgcc -B/x/cris-elf/gccobj/gcc/
/x/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr23109.c\
    -fdiagnostics-plain-output   -O2 -funsafe-math-optimizations
-ftrapping-math -fdump-tree-recip -fdump-tree-lim2 -S \
  -isystem /x/cris-elf/gccobj/cris-elf/./newlib/targ-include -isystem
/x/gcc/newlib/libc/include -o pr23109.s    (timeo\
ut =3D 300)
spawn -ignore SIGHUP /x/cris-elf/gccobj/gcc/xgcc -B/x/cris-elf/gccobj/gcc/
/x/gcc/gcc/testsuite/gcc.dg/tree-ssa/pr23109\
.c -fdiagnostics-plain-output -O2 -funsafe-math-optimizations -ftrapping-ma=
th
-fdump-tree-recip -fdump-tree-lim2 -S -is\
ystem /x/cris-elf/gccobj/cris-elf/./newlib/targ-include -isystem
/x/gcc/newlib/libc/include -o pr23109.s^M
cc1: warning: '-fassociative-math' disabled; other options take precedence^M
PASS: gcc.dg/tree-ssa/pr23109.c  at line 3 (test for warnings, line )
PASS: gcc.dg/tree-ssa/pr23109.c (test for excess errors)
PASS: gcc.dg/tree-ssa/pr23109.c scan-tree-dump-not lim2 "reciptmp"
FAIL: gcc.dg/tree-ssa/pr23109.c scan-tree-dump-not recip "reciptmp"

I'm attaching pr23109.c.189t.recip=