[Bug middle-end/103243] New: [12 regression] pr98499.C fails after r12-5203

[Bug middle-end/103243] New: [12 regression] pr98499.C fails after r12-5203

[clyon at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

            Bug ID: 103243
           Summary: [12 regression] pr98499.C fails after r12-5203
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: clyon at gcc dot gnu.org
  Target Milestone: ---

I've noticed failures on g++.dg/pr98499.C on arm and aarch64, which started
somewhere between r12-5186 and r12-5203

FAIL: g++.dg/pr98499.C  -std=gnu++14 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++17 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++2a execution test
FAIL: g++.dg/pr98499.C  -std=gnu++98 execution test

[Bug middle-end/103243] [12 regression] pr98499.C fails after r12-5203

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |12.0
           Keywords|                            |wrong-code

[Bug middle-end/103243] [12 regression] pr98499.C fails after r12-5203

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

seurer at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|arm aarch64                 |arm aarch64 powerpc64
                 CC|                            |hubicka at gcc dot gnu.org,
                   |                            |seurer at gcc dot gnu.org

--- Comment #1 from seurer at gcc dot gnu.org ---
It starts with

g:4526ec20f17a6182f754da9460d9d944dd123cc0, r12-5201
make  -k check-gcc RUNTESTFLAGS="dg.exp=g++.dg/pr98499.C"
FAIL: g++.dg/pr98499.C  -std=gnu++98 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++14 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++17 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++2a execution test
# of expected passes            4
# of unexpected failures        4


commit 4526ec20f17a6182f754da9460d9d944dd123cc0 (HEAD, refs/bisect/bad)
Author: Jan Hubicka <jh@suse.cz>
Date:   Fri Nov 12 16:34:03 2021 +0100

    Fix ICE in tree-ssa-structalias.c

[Bug ipa/103243] [12 regression] pr98499.C fails after r12-5203

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-11-17
           Assignee|unassigned at gcc dot gnu.org      |hubicka at gcc dot gnu.org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever confirmed|0                           |1

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
will have a look

[Bug ipa/103243] [12 regression] pr98499.C fails after r12-5203

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Does not reproduce for me on aarch64 (gcc114 from the compile farm)
jh@gcc114:~/trunk/build2/gcc$ ./xgcc -B ./ --version
xgcc (GCC) 12.0.0 20211117 (experimental)
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
jh@gcc114:~/trunk/build2/gcc$ make  -k check-gcc
RUNTESTFLAGS="dg.exp=g++.dg/pr98499.C"
Making a new config file...
echo "set tmpdir /home/jh/trunk/build2/gcc/testsuite" >> ./site.tmp
rm -rf testsuite/gcc-parallel
make[1]: Entering directory `/home/jh/trunk/build2/gcc'
(rootme=`${PWDCMD-pwd}`; export rootme; \
        srcdir=`cd ../../gcc; ${PWDCMD-pwd}` ; export srcdir ; \
        if [ -n "" ] \
           && [ -n "$GCC_RUNTEST_PARALLELIZE_DIR" ] \
           && [ -f testsuite/gcc-parallel/finished ]; then \
          rm -rf testsuite/gcc; \
        else \
          cd testsuite/gcc; \
          rm -f tmp-site.exp; \
          sed '/set tmpdir/ s|testsuite$|testsuite/gcc|' \
                < ../../site.exp > tmp-site.exp; \
          /bin/bash ${srcdir}/../move-if-change tmp-site.exp site.exp; \
          EXPECT=`if [ -f ${rootme}/../expect/expect ] ; then echo
${rootme}/../expect/expect ; else echo expect ; fi` ; export EXPECT ; \
          if [ -f ${rootme}/../expect/expect ] ; then  \
            TCL_LIBRARY=`cd .. ; cd ${srcdir}/../tcl/library ; ${PWDCMD-pwd}` ;
\
            export TCL_LIBRARY ; \
          fi ; \
          `if [ -f ${srcdir}/../dejagnu/runtest ] ; then echo
${srcdir}/../dejagnu/runtest ; else echo runtest; fi` --tool gcc
dg.exp=g++.dg/pr98499.C; \
          if [ -n "$GCC_RUNTEST_PARALLELIZE_DIR" ] ; then \
            touch ${rootme}/testsuite/gcc-parallel/finished; \
          fi ; \
        fi )
Test Run By jh on Wed Nov 17 03:10:42 2021
Native configuration is aarch64-unknown-linux-gnu

                === gcc tests ===

Schedule of variations:
    unix

Running target unix
Using /usr/share/dejagnu/baseboards/unix.exp as board description file for
target.
Using /usr/share/dejagnu/config/unix.exp as generic interface file for target.
Using /home/jh/trunk/gcc/testsuite/config/default.exp as
tool-and-target-specific interface file.
Running /home/jh/trunk/gcc/testsuite/gcc.dg/dg.exp ...

                === gcc Summary ===

/home/jh/trunk/build2/gcc/xgcc  version 12.0.0 20211117 (experimental) (GCC) 

make[1]: Leaving directory `/home/jh/trunk/build2/gcc'


Can you, please, post -fdump-tree-all-details -fdump-ipa-all-details files?

[Bug ipa/103243] [12 regression] pr98499.C fails after r12-5203

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

--- Comment #4 from seurer at gcc dot gnu.org ---
At or somewhere just before r12-5221 it now succeeds, at least on powerpc64

g:2f3d43a35155685b1795b4392e20e1c14a33c38f, r12-5221
New passes (these tests previously failed but now do not):
FAIL: g++.dg/pr98499.C  -std=gnu++14 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++14 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++17 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++17 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++2a execution test
FAIL: g++.dg/pr98499.C  -std=gnu++2a execution test
FAIL: g++.dg/pr98499.C  -std=gnu++98 execution test
FAIL: g++.dg/pr98499.C  -std=gnu++98 execution test

[Bug ipa/103243] [12 regression] pr98499.C fails after r12-5203

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103243

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Assuming fixed.