[Bug c/52714] New: ICE in fixup_reorder_chain, at cfglayout.c:880

[dan at danny dot cz]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52714

             Bug #: 52714
           Summary: ICE in fixup_reorder_chain, at cfglayout.c:880
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dan@danny.cz


Created attachment 26985
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26985
preprocessed source file

m68k-linux-gnu cross-compiler throws an internal error when compiling the file
from attachment with -O1 (-O0 and -O2 are OK), same error exist also 4.6.[23]

[dan@eagle tmp]$ m68k-linux-gnu-gcc -O1 -c regex.i 
../posix/regex.c: In function ‘re_match_2_internal’:
../posix/regex.c:5255:1: internal compiler error: in fixup_reorder_chain, at
cfglayout.c:880


[dan@eagle tmp]$ m68k-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=m68k-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/m68k-linux-gnu/4.7.0/lto-wrapper
Target: m68k-linux-gnu
Configured with: ../gcc-4.7.0-RC-20120302/configure
--disable-dependency-tracking --disable-silent-rules --prefix=/usr
--exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
--datadir=/usr/share --includedir=/usr/include --libexecdir=/usr/libexec
--localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man
--infodir=/usr/share/info --build=x86_64-redhat-linux-gnu
--host=x86_64-redhat-linux-gnu --target=m68k-linux-gnu --enable-targets=all
--program-prefix=m68k-linux-gnu- --enable-languages=c --without-headers
--enable-sjlj-exceptions --with-system-libunwind --disable-nls
--disable-threads --disable-shared --disable-libmudflap --disable-libssp
--disable-libgomp --disable-libquadmath --disable-gold --disable-decimal-float
--enable-checking= --enable-gnu-unique-object --enable-linker-build-id
--disable-plugin --enable-nls --with-system-zlib
--with-bugurl=http://bugzilla.redhat.com/bugzilla/ --enable-obsolete
Thread model: single
gcc version 4.7.0 20120302 (Red Hat 4.7.0-0.11.4) (GCC)