[Bug middle-end/11700] New: [3.3/3.4 regression] [M68K] ICE in subreg_hard_regno

["schwab at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11700

           Summary: [3.3/3.4 regression] [M68K] ICE in subreg_hard_regno
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schwab at suse dot de
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: powerpc-linux
  GCC host triplet: powerpc-linux
GCC target triplet: m68k-linux

This is similar to bug 10557.  Either subreg_offset_representable_p is still to strict, or it should 
not be called at all when !check_mode. 
 
$ m68k-linux-gcc -O2 double.c -v 
Reading specs from /usr/local/m68k-linux/lib/gcc-lib/m68k-linux/3.4/specs 
Configured with: ../gcc/configure --host=powerpc-linux --prefix=/usr/local/m68k-linux 
--enable-languages=c,c++ --target=m68k-linux --enable-shared --enable-clocale=gnu 
--enable-__cxa_atexit --with-as=/usr/local/m68k-linux/m68k-linux/bin/as 
--with-ld=/usr/local/m68k-linux/m68k-linux/bin/ld 
--with-gcc-version-trigger=/home/andreas/src/gcc/gcc/gcc/version.c --no-create --no-recursion : 
(reconfigured)  
Thread model: posix 
gcc version 3.4 20030727 (experimental) 
 /usr/local/m68k-linux/lib/gcc-lib/m68k-linux/3.4/cc1 -quiet -v -D__HAVE_68881__ double.c 
-quiet -dumpbase double.c -auxbase double -O2 -version -o /tmp/ccsdwhgS.s 
ignoring nonexistent directory "/usr/local/m68k-linux/m68k-linux/sys-include" 
#include "..." search starts here: 
#include <...> search starts here: 
 /usr/local/m68k-linux/lib/gcc-lib/m68k-linux/3.4/include 
 /usr/local/m68k-linux/m68k-linux/include 
End of search list. 
GNU C version 3.4 20030727 (experimental) (m68k-linux) 
	compiled by GNU C version 3.4 20030712 (experimental). 
GGC heuristics: --param ggc-min-expand=47 --param ggc-min-heapsize=31832 
double.c: In function `conj_test': 
 
double.c:12: internal compiler error: in subreg_hard_regno, at emit-rtl.c:1023