[Bug rtl-optimization/63463] New: [5.0 regression] FAIL: gnat.dg/regpat1.adb execution test

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63463

            Bug ID: 63463
           Summary: [5.0 regression] FAIL: gnat.dg/regpat1.adb execution
                    test
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: schwab@linux-m68k.org
                CC: jiong.wang at arm dot com
            Target: powerpc-*-*

$ ADA_INCLUDE_PATH=powerpc64-linux/32/libada/adainclude
ADA_OBJECTS_PATH=powerpc64-linux/32/libada/adainclude gcc/gnatmake
--GCC=gcc/xgcc --GNATBIND=gcc/gnatbind --GNATLINK=gcc/gnatlink -cargs -Bgcc
-largs --GCC=gcc/xgcc\ -Bgcc\ \ -m32 -margs --RTS=powerpc64-linux/32/libada -q
-f ../gcc/testsuite/gnat.dg/regpat1.adb  -fno-diagnostics-show-caret
-fdiagnostics-color=never     -lm   -m32 -o ./regpat1.exe
$ ./regpat1.exe

raised STORAGE_ERROR : stack overflow or erroneous memory access

63b061625a6529716998bef4efe2f7b4f522228e is the first bad commit
commit 63b061625a6529716998bef4efe2f7b4f522228e
Author: jiwang <jiwang@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Wed Sep 24 18:30:34 2014 +0000

    Improve prepare_shrink_wrap to sink more instructions

      gcc/
        * shrink-wrap.c (move_insn_for_shrink_wrap): Add further check when
        !REG_P (src) to release more instruction sink opportunities.

      gcc/testsuite/
        * gcc.target/aarch64/shrink_wrap_symbol_ref_1.c: New testcase.



    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@215563
138bc75d-0d04-0410-961f-82ee72b054a4