(strength_reduce): When replacing DEST_ADDR givs, make sure resulting

insn is valid.

From-SVN: r7529

diff --git a/gcc/loop.c b/gcc/loop.c
index dc39fdfd3d42958a95c766282b25339eb31d46bb..31e7a6e79cee2a2231c51eda4ebae4592adbffe4 100644 (file)
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -3851,7 +3851,7 @@ strength_reduce (scan_start, end, loop_top, insn_count,
          if (v->giv_type == DEST_ADDR)
            /* Store reduced reg as the address in the memref where we found
               this giv.  */
-           *v->location = v->new_reg;
+           validate_change (v->insn, v->location, v->new_reg, 0);
          else if (v->replaceable)
            {
              reg_map[REGNO (v->dest_reg)] = v->new_reg;