[Bug rtl-optimization/51631] New: Trunk ICE for case vst1_lanese64.c with -Os

["terry.guo at arm dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51631

             Bug #: 51631
           Summary: Trunk ICE for case vst1_lanese64.c with -Os
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: terry.guo@arm.com
                CC: joey.ye@arm.com
              Host: i686-linux-gnu
            Target: arm-none-eabi
             Build: i686-linux-gnu


When I was trying to run regression test using option -Os, I got this ICE for
latest trunk code:

build@sha-pdsh-build04:~/workspace/GCC-Trunk-Daily-Test/build-linux/gcc-final/gcc/testsuite/gcc$
/home/build/workspace/GCC-Trunk-Daily-Test/build-linux/gcc-final/gcc/xgcc
-B/home/build/workspace/GCC-Trunk-Daily-Test/build-linux/gcc-final/gcc/   
-save-temps  -mfpu=neon -mfloat-abi=softfp -c    -mthumb -mcpu=cortex-m3 -o
vst1_lanes8.o
/home/build/workspace/GCC-Trunk-Daily-Test/src/gcc/gcc/testsuite/gcc.target/arm/neon/vst1_lanes64.c
-Os
/home/build/workspace/GCC-Trunk-Daily-Test/src/gcc/gcc/testsuite/gcc.target/arm/neon/vst1_lanes64.c:
In function 'test_vst1_lanes64':
/home/build/workspace/GCC-Trunk-Daily-Test/src/gcc/gcc/testsuite/gcc.target/arm/neon/vst1_lanes64.c:17:1:
internal compiler error: in simplify_binary_operation_1, at simplify-rtx.c:3128
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