[Bug target/49987] New: [4.7 Regression] gcc.c-torture/compile/pr34856.c fails on powerpc-darwin9 from r176228

["iains at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49987

           Summary: [4.7 Regression] gcc.c-torture/compile/pr34856.c fails
                    on powerpc-darwin9 from r176228
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: iains@gcc.gnu.org
                CC: rsandifo@gcc.gnu.org
            Target: powerpc-apple-darwin9


Native configuration is powerpc-apple-darwin9
                === gcc tests ===
Running target unix/-m32

FAIL: gcc.c-torture/compile/pr34856.c  -O1  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O1  (test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O2  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer  (internal
compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer  (test for
excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer -funroll-loops 
(internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer -funroll-loops 
(test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -fomit-frame-pointer
-funroll-all-loops -finline-functions  (test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -g  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -Os  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -Os  (test for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O2 -flto -flto-partition=none 
(internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O2 -flto -flto-partition=none  (test
for excess errors)
FAIL: gcc.c-torture/compile/pr34856.c  -O2 -flto  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O2 -flto  (test for excess errors)

===

log:
FAIL: gcc.c-torture/compile/pr34856.c  -O1  (internal compiler error)
FAIL: gcc.c-torture/compile/pr34856.c  -O1  (test for excess errors)
Excess errors:
/GCC/gcc-live-trunk/gcc/testsuite/gcc.c-torture/compile/pr34856.c:17:1:
internal compiler error: in simplify_immed_subreg, at simplify-rtx.c:5255

===

caused by:
http://gcc.gnu.org/ml/gcc-cvs/2011-07/msg00494.html

====
appeared in :
http://gcc.gnu.org/ml/gcc-regression/2011-07/msg00248.html
and 
http://gcc.gnu.org/ml/gcc-testresults/2011-07/msg01682.html

still present in trunk at 177422