[Bug target/37909] internal compiler error: in fixup_mova, at config/sh/sh.c:3756

[kkojima at gcc dot gnu dot org]

------- Comment #4 from kkojima at gcc dot gnu dot org  2008-10-26 08:26 -------
sh_reorg might insert a new mova in SH_FIXUP_PCLOAD phase.
When untangle_mova looks this mova insn, it may not be associated
with the insn address yet but the current code takes its undefined
address.  It seems that this mova should be skipped there because
it will be handled later.  I'm testing the attached patch.

--
        * config/sh/sh.c (untangle_mova): Return -1 when NEW_MOVA has
        no address.

--- ORIG/trunk/gcc/config/sh/sh.c       2008-10-22 09:11:15.000000000 +0900
+++ LOCAL/trunk/gcc/config/sh/sh.c      2008-10-26 10:36:59.000000000 +0900
@@ -3826,6 +3826,10 @@ untangle_mova (int *num_mova, rtx *first

   if (optimize)
     {
+      /* If NEW_MOVA has no address yet, it will be handled later.  */
+      if (INSN_ADDRESSES_SIZE() <= (unsigned) INSN_UID (new_mova))
+       return -1;
+
       n_addr = INSN_ADDRESSES (INSN_UID (new_mova));
       n_target = INSN_ADDRESSES (INSN_UID (XEXP (MOVA_LABELREF (new_mova),
0)));
       if (n_addr > n_target || n_addr + 1022 < n_target)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37909