[Bug c/16863] New: ICE: Didn't find a coloring in genmodes.c with -fnew-ra and optimization

[v dot haisman at sh dot cvut dot cz]

I tryed to bootstrap the compiler with CBOOT_FLAGS="-O3 -g -fnew-ra". It died on
genmodes.c in new_mode() as you can see bellow. Without -fnew-ra or with
-fnew-ra and -O0 it compiles. The preprocessed source is attached. I tryed to
make it smaller but the bug disappeared when I deleted any function.

wilx@logout:::~/tmp/gcc-head/objdir/gcc> stage1/xgcc -Bstage1/
-B/home/4/wilx/i386-unknown-freebsd4.10/bin/ -c   -O3 -g -fnew-ra -DIN_GCC   -W
-Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic
-Wno-long-long -Wno-variadic-macros -Wold-style-definition -Werror -fno-common 
 -DHAVE_CONFIG_H -DGENERATOR_FILE    -I. -I. -I../../srcdir/gcc
-I../../srcdir/gcc/. -I../../srcdir/gcc/../include
-I../../srcdir/gcc/../libcpp/include -I../../srcdir/gcc/../libbanshee/libcompat
-I../../srcdir/gcc/../libbanshee -I../../srcdir/gcc/../libbanshee/points-to 
../../srcdir/gcc/genmodes.c -save-temps -o genmodes.o
../../srcdir/gcc/genmodes.c: In function `new_mode':
../../srcdir/gcc/genmodes.c:173: internal compiler error: Didn't find a coloring.

Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           Summary: ICE: Didn't find a coloring in genmodes.c with -fnew-ra
                    and optimization
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: v dot haisman at sh dot cvut dot cz
                CC: gcc-bugs at gcc dot gnu dot org,v dot haisman at sh dot
                    cvut dot cz
 GCC build triplet: i386-unknown-freebsd4.10
  GCC host triplet: i386-unknown-freebsd4.10
GCC target triplet: i386-unknown-freebsd4.10


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16863