[Bug middle-end/49723] gcc.c-torture/compile/pr46934.c: ICE in do_SUBST, at combine.c:707 at -O1 and above

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49723

John David Anglin <danglin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|hppa*-*-hpux*               |hppa64-*-*
               Host|hppa*-*-hpux*               |hppa64-*-*
              Build|hppa*-*-hpux*               |hppa64-*-*

--- Comment #1 from John David Anglin <danglin at gcc dot gnu.org> 2011-07-13 
00:19:10 UTC ---
   0x4000000004d67bac <do_SUBST+172>:    b,l 0x4000000004d9a290 <.stub>,rp
   0x4000000004d67bb0 <do_SUBST+176>:    nop
   0x4000000004d67bb4 <do_SUBST+180>:    copy r4,dp
   0x4000000004d67bb8 <do_SUBST+184>:    cmpb,*=,n ret0,r6,0x4000000004d67bf0
<do_SUBST+240>

(gdb) p/x $r6
$6 = 0x80000000
(gdb) p/x $ret0
$7 = 0xffffffff80000000

newval ($r6) doesn't appear valid.