[Bug target/63256] New: [5.0 regression] FAIL: gcc.dg/sms-8.c scan-rtl-dump-times sms "SMS succeeded" 0

["schwab at linux-m68k dot org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63256

            Bug ID: 63256
           Summary: [5.0 regression] FAIL: gcc.dg/sms-8.c
                    scan-rtl-dump-times sms "SMS succeeded" 0
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: segher at kernel dot crashing.org
            Target: powerpc-*-*

Only happens with -m32.

$ gcc/xgcc -Bgcc/ ../gcc/gcc/testsuite/gcc.dg/sms-8.c
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -fmodulo-sched
-fmodulo-sched-allow-regmoves -fdump-rtl-sms -ffat-lto-objects -lm -m32 -o
./sms-8.exe
$ grep "SMS succeeded" sms-8.c.214r.sms
../gcc/gcc/testsuite/gcc.dg/sms-8.c:18 SMS succeeded 12 2 (with ii, sc)

96f3c2b9903e92cf806719d18fc0682d617c0016 is the first bad commit
commit 96f3c2b9903e92cf806719d18fc0682d617c0016
Author: segher <segher@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Tue Sep 2 11:21:09 2014 +0000

    2014-09-02  Segher Boessenkool  <segher@kernel.crashing.org>

        * config/rs6000/rs6000.md (any_extend): New code iterator.
        (u, su): New code attributes.
        (dmode, DMODE): New mode attributes.
        (<su>mul<mode>3_highpart): New.
        (*<su>mul<mode>3_highpart): New.
        (<su>mulsi3_highpart_le): New.
        (<su>muldi3_highpart_le): New.
        (<su>mulsi3_highpart_64): New.
        (<u>mul<mode><dmode>3): New.
        (mulsidi3, umulsidi3, smulsi3_highpart, umulsi3_highpart, and two
        splitters): Delete.
        (mulditi3, umulditi3, smuldi3_highpart, umuldi3_highpart, and two
        splitters): Delete.


    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@214814
138bc75d-0d04-0410-961f-82ee72b054a4