From: Richard Kenner <kenner@gcc.gnu.org>
Date: Wed, 22 Jun 1994 23:53:01 +0000 (-0400)
Subject: (strength_reduce): When replacing DEST_ADDR givs, make sure resulting
X-Git-Tag: misc/cutover-egcs-0~6414
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9abdca9c6fb99f88bc5f8ce846a5cde8db0cdd00;p=thirdparty%2Fgcc.git

(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 dc39fdfd3d42..31e7a6e79cee 100644
--- 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;