[Bug rtl-optimization/41790] New: [4.5 Regression]: cris-elf g++.dg/torture/pr38811.C -O3

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

With revision 153024 this test passed.
>From revision 153037 and on, this test has failed as follows:
Running /tmp/hpautotest-gcc1/gcc/gcc/testsuite/g++.dg/torture/dg-torture.exp
...
...
FAIL: g++.dg/torture/pr38811.C  -O3 -g  (internal compiler error)
FAIL: g++.dg/torture/pr38811.C  -O3 -g  (test for excess errors)

With the message in the logfile being:

Executing on host:
/tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/g++/../../g++
-B/tmp/hpautotest-gcc1/cris-elf/gccobj/gcc/testsuite/g++/../../
/tmp/hpautotest-gcc1/gcc/gcc/testsuite/g++.dg/torture/pr38811.C  -nostdinc++
-I/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libstdc++-v3/include/cris-elf
-I/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libstdc++-v3/include
-I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/libsupc++
-I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/include/backward
-I/tmp/hpautotest-gcc1/gcc/libstdc++-v3/testsuite/util -fmessage-length=0  -O3
-g    -S   -isystem
/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/./newlib/targ-include -isystem
/tmp/hpautotest-gcc1/gcc/newlib/libc/include  -o pr38811.s    (timeout = 300)
/tmp/hpautotest-gcc1/gcc/gcc/testsuite/g++.dg/torture/pr38811.C: In member
function 'virtual long int AbcAbcdTracer::TestIsoAbcde(AbcZyParamType, double,
int&)':
/tmp/hpautotest-gcc1/gcc/gcc/testsuite/g++.dg/torture/pr38811.C:72:1: internal
compiler error: in reload_combine_note_use, at postreload.c:1097

Author of the only suspect patches in above revision range CC:ed.
(Yes, CRIS is an autoincdec target.)


-- 
           Summary: [4.5 Regression]: cris-elf g++.dg/torture/pr38811.C -O3
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: cris-axis-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41790