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From: "gary at intrepid dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/54142] New: ppc64 build failure - Unrecognized opcode: `sldi' (and `srdi`)
Date: Tue, 31 Jul 2012 15:35:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54142

             Bug #: 54142
           Summary: ppc64 build failure - Unrecognized opcode: `sldi' (and
                    `srdi`)
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: gary@intrepid.com
            Target: powerpc64


On several PPC64 systems, we are seeing the following build failure.

/home/garyf/gcc-4.8/wrk/./gcc/xgcc -B/home/garyf/gcc-4.8/wrk/./gcc/
[...]
 -I/home/garyf/gcc-4.8/src/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
_gcov_execle.o -MT _g
cov_execle.o -MD -MP -MF _gcov_execle.dep -DL_gcov_execle -c /home/garyf/gcc-4.
8/src/libgcc/libgcov.c
/tmp/ccqVYRai.s: Assembler messages:
/tmp/ccqVYRai.s:63: Error: Unrecognized opcode: `sldi'
/tmp/ccqVYRai.s:66: Error: Unrecognized opcode: `srdi'
/tmp/ccqVYRai.s:67: Error: Unrecognized opcode: `sldi'
/tmp/ccqVYRai.s:73: Error: Unrecognized opcode: `srdi'
/tmp/ccqVYRai.s:74: Error: Unrecognized opcode: `sldi'
/tmp/ccqVYRai.s:88: Error: Unrecognized opcode: `sldi'

The failures above use the gcc-4.8-20120729 snapshot which is based on svn
revision 189947.

The configure target is: powerpc64-unknown-linux-gnu

This was built on a rather old (FC6) system running on a Mac G5, but we have
seen it also fail on newer PPC64 systems.