[Bug regression/48263] New: [4.7 Regression]: build fails for cris-elf in libgfortran

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48263

           Summary: [4.7 Regression]: build fails for cris-elf in
                    libgfortran
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Keywords: build, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: regression
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hp@gcc.gnu.org
                CC: rsandifo@gcc.gnu.org
              Host: x86_64-unknown-linux-gnu
            Target: cris-axis-elf


Created attachment 23764
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23764
Preprocessed code, repeat ICE with "cc1 -fpreprocessed iany_i8.i -O2 
-std=gnu99"

A patch in the revision range (last_known_working:first_known_failing)
171339:171341 caused the build for cris-elf to fail as follows:

...
libtool: compile:  /tmp/hpautotest-gcc1/cris-elf/gccobj/./gcc/xgcc
-B/tmp/hpautotest-gcc1/cris-elf/gccobj/./gcc/ -nostdinc
-B/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/newlib/ -isystem
/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/newlib/targ-include -isystem
/tmp/hpautotest-gcc1/gcc/newlib/libc/include
-B/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libgloss/cris
-L/tmp/hpautotest-gcc1/cris-elf/gccobj/cris-elf/libgloss/libnosys
-L/tmp/hpautotest-gcc1/gcc/libgloss/cris
-B/tmp/hpautotest-gcc1/cris-elf/pre/cris-elf/bin/
-B/tmp/hpautotest-gcc1/cris-elf/pre/cris-elf/lib/ -isystem
/tmp/hpautotest-gcc1/cris-elf/pre/cris-elf/include -isystem
/tmp/hpautotest-gcc1/cris-elf/pre/cris-elf/sys-include -DHAVE_CONFIG_H -I.
-I/tmp/hpautotest-gcc1/gcc/libgfortran
-iquote/tmp/hpautotest-gcc1/gcc/libgfortran/io
-I/tmp/hpautotest-gcc1/gcc/libgfortran/../gcc
-I/tmp/hpautotest-gcc1/gcc/libgfortran/../gcc/config -I../.././gcc
-D_GNU_SOURCE -std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -Wextra -Wwrite-strings -fcx-fortran-rules
-ffunction-sections -fdata-sections -g -O2 -MT iany_i8.lo -MD -MP -MF
.deps/iany_i8.Tpo -c /tmp/hpautotest-gcc1/gcc/libgfortran/generated/iany_i8.c
-o iany_i8.o
/tmp/hpautotest-gcc1/gcc/libgfortran/generated/iany_i8.c: In function
'iany_i8':
/tmp/hpautotest-gcc1/gcc/libgfortran/generated/iany_i8.c:188:1: error:
unrecognizable insn:
(insn 390 389 391 40 (set (subreg:SI (reg:DI 393) 0)
        (ior:SI (mem:SI (reg/v/f:SI 134 [ src ]) [2 *src_82+0 S4 A8])
            (subreg:SI (reg/v:DI 92 [ result ]) 0)))
/tmp/hpautotest-gcc1/gcc/libgfortran/generated/iany_i8.c:153 -1
     (nil))
/tmp/hpautotest-gcc1/gcc/libgfortran/generated/iany_i8.c:188:1: internal
compiler error: in extract_insn, at recog.c:2109

Preprocessed code is attached.

Author of one or more suspect patches in revision range CC:ed.