[Bug target/28181] [4.0/4.1/4.2 regression] ICE in reload_cse_simplify_operands, at postreload.c:393 on m68k

["tbm at cyrius dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #1 from tbm at cyrius dot com  2006-06-27 20:15 -------
Update: 4.0 shows the same problem.  3.4.6 works

crest% gcc-4.0 -c -O2 scansbr.i
scansbr.c: In function 'scan':
scansbr.c:154: warning: pointer targets in passing argument 2 of 'm_getfld'
differ in signedness
scansbr.c:154: warning: pointer targets in passing argument 3 of 'm_getfld'
differ in signedness
scansbr.c:189: warning: pointer targets in passing argument 2 of 'm_getfld'
differ in signedness
scansbr.c:189: warning: pointer targets in passing argument 3 of 'm_getfld'
differ in signedness
scansbr.c:225: warning: pointer targets in passing argument 2 of 'm_getfld'
differ in signedness
scansbr.c:225: warning: pointer targets in passing argument 3 of 'm_getfld'
differ in signedness
scansbr.c:262: warning: pointer targets in passing argument 2 of 'm_getfld'
differ in signedness
scansbr.c:262: warning: pointer targets in passing argument 3 of 'm_getfld'
differ in signedness
scansbr.c:369: error: insn does not satisfy its constraints:
(insn 1692 701 1693 82 (set (reg:QI 8 %a0)
        (mem/s:QI (plus:SI (reg/f:SI 14 %a6)
                (const_int -212 [0xffffff2c])) [0 name+0 S1 A16])) 33
{*m68k.md:746} (nil)
    (nil))
scansbr.c:369: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:391
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.


-- 

tbm at cyrius dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.0.4 4.1.1 4.2.0
      Known to work|                            |3.4.6
            Summary|[4.1/4.2 regression] ICE in |[4.0/4.1/4.2 regression] ICE
                   |reload_cse_simplify_operands|in
                   |, at postreload.c:393 on    |reload_cse_simplify_operands
                   |m68k                        |, at postreload.c:393 on
                   |                            |m68k


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28181