[Bug c/48554] New: Regression for coldfire platform

[miro.kropacek at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48554

           Summary: Regression for coldfire platform
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: miro.kropacek@gmail.com


Created attachment 23956
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23956
Test case

I wanted to test http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48551 against
4.6.0 so I decided to compile new gcc toolchain. It crashed for coldfire by
libc compilation:

/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/xgcc
-B/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/ -B/home/mikro/gnu-tools/bin/
-B/home/mikro/gnu-tools/lib/ -isystem /home/mikro/gnu-tools/include -isystem
/home/mikro/gnu-tools/sys-include -Wall -mcpu=5475 -O2 -fomit-frame-pointer
-nostdinc -I../stdio -I.. -I../include -I../mintlib -I../stdlib
-I/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/include
-I/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/include-fixed -DHAVE_CONFIG_H
-D_LIBC -D_REENTRANT -save-temps -v -c ./printf_fp.i 
Reading specs from /home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/specs
COLLECT_GCC=/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/xgcc
COLLECT_LTO_WRAPPER=/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/lto-wrapper
Target: m68k-atari-mint
Configured with: ../gcc-4.6.0/configure --target=m68k-atari-mint
--prefix=/home/mikro/gnu-tools --enable-languages=c,c++ --disable-nls
--disable-libstdcxx-pch 'CFLAGS_FOR_TARGET=-O2 -fomit-frame-pointer'
'CXXFLAGS_FOR_TARGET=-O2 -fomit-frame-pointer'
Thread model: single
gcc version 4.6.0 (MiNT 20110206) (GCC) 
COLLECT_GCC_OPTIONS='-B' '/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/' '-B'
'/home/mikro/gnu-tools/bin/' '-B' '/home/mikro/gnu-tools/lib/' '-isystem'
'/home/mikro/gnu-tools/include' '-isystem' '/home/mikro/gnu-tools/sys-include'
'-Wall' '-mcpu=5475' '-O2' '-fomit-frame-pointer' '-nostdinc' '-I' '../stdio'
'-I' '..' '-I' '../include' '-I' '../mintlib' '-I' '../stdlib' '-I'
'/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/include' '-I'
'/home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/include-fixed' '-D' 'HAVE_CONFIG_H'
'-D' '_LIBC' '-D' '_REENTRANT' '-save-temps' '-v' '-c'
 /home/mikro/atari/gnu/gcc-4.6.0-cross/gcc/cc1 -fpreprocessed ./printf_fp.i
-quiet -dumpbase printf_fp.i -mcpu=5475 -auxbase printf_fp -O2 -Wall -version
-fomit-frame-pointer -o printf_fp.s
GNU C (GCC) version 4.6.0 (MiNT 20110206) (m68k-atari-mint)
        compiled by GNU C version 4.4.3, GMP version 4.3.2, MPFR version
2.4.2-p1, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C (GCC) version 4.6.0 (MiNT 20110206) (m68k-atari-mint)
        compiled by GNU C version 4.4.3, GMP version 4.3.2, MPFR version
2.4.2-p1, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 3a2c4fbef45b8f57f847c54f7ff100d7
../stdio/printf_fp.c: In function '__printf_fp':
../stdio/printf_fp.c:575:17: warning: variable 'used_limbs' set but not used
[-Wunused-but-set-variable]
../stdio/printf_fp.c:1038:1: internal compiler error: in
maybe_add_or_update_dep_1, at sched-deps.c:845
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.