[Bug c/55273] New: [4.8.0 regression] ICE in iv_number_of_iterations, at loop-iv.c:2819

[dougmencken at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55273

             Bug #: 55273
           Summary: [4.8.0 regression] ICE in iv_number_of_iterations, at
                    loop-iv.c:2819
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dougmencken@gmail.com


Created attachment 28658
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28658
Preprocessed source

I tried to build GDB v7.5 with gcc version 4.8.0 20121021 (experimental) (GCC),
and got the following:

powerpc-gnu-linux-uclibc-gcc -c -O3 -O3    -I. -I. -I./../common
-I./../regformats -I./../../include -I./../gnulib/import
-Ibuild-gnulib-gdbserver/import -Wall -Wdeclaration-after-statement
-Wpointer-arith -Wformat-nonliteral -Wno-char-subscripts  linux-low.c
-DUSE_THREAD_DB
linux-low.c: In function 'my_waitpid':
linux-low.c:430:1: internal compiler error: in iv_number_of_iterations, at
loop-iv.c:2819
 }
 ^
mmap: Invalid argument
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[4]: *** [linux-low.o] Error 1
make[4]: Leaving directory `/root/build-farm/gdb-v7.5.builddir/gdb/gdbserver'
make[3]: *** [subdir_do] Error 1
make[3]: Leaving directory `/root/build-farm/gdb-v7.5.builddir/gdb'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/root/build-farm/gdb-v7.5.builddir/gdb'
make[1]: *** [all-gdb] Error 2
make[1]: Leaving directory `/root/build-farm/gdb-v7.5.builddir'
make: *** [all] Error 2

Attaching preprocessed source, as well as original C source, and also assembly
file (gdb/gdbserver/linux-low.s).