[Bug rtl-optimization/33685] New: [4.3 regression] invalid rtl sharing found in the insn

[bero at arklinux dot org]

gcc -DHAVE_CONFIG_H -I. -I.. -I../.. -DMAGIC=\"/usr/lib/rpm/magic\"
-DHAVE_LIBZ=1 -O2 -march=i586 -mtune=i686 -fomit-frame-pointer -fweb
-frename-registers -MT softmagic.lo -MD -MP -MF .deps/softmagic.Tpo -c
softmagic.c  -fPIC -DPIC -o .libs/softmagic.o
softmagic.c: In function 'cvt_16':
softmagic.c:553: error: invalid rtl sharing found in the insn
(insn 70 69 71 12 softmagic.c:552 (parallel [
            (set (reg:HI 69)
                (udiv:HI (reg:HI 71 [ <variable>.h ])
                    (subreg:HI (reg:SI 79 [ D.4365 ]) 0)))
            (set (reg:HI 70)
                (umod:HI (reg:HI 71 [ <variable>.h ])
                    (subreg:HI (reg:SI 79 [ D.4365 ]) 0)))
            (use (reg:HI 72))
            (clobber (reg:CC 17 flags))
        ]) 231 {*udivmodhi_noext} (nil))
softmagic.c:553: error: shared rtx
(subreg:HI (reg:SI 79 [ D.4365 ]) 0)
softmagic.c:553: internal compiler error: internal consistency failure


Happens at -O1 and higher.


-- 
           Summary: [4.3 regression] invalid rtl sharing found in the insn
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bero at arklinux dot org
 GCC build triplet: i586-pc-linux-gnu
  GCC host triplet: i586-pc-linux-gnu
GCC target triplet: i586-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33685