From a73071bc4efc2a959aff02abb43972679cb4184b Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@redhat.com>
Date: Fri, 11 Apr 2003 16:27:59 -0700
Subject: [PATCH] * emit-rtl.c (gen_rtx): Zero '0' fields.

From-SVN: r65488
---
 gcc/ChangeLog  | 4 ++++
 gcc/emit-rtl.c | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f24de1b789f6..fa4532274da0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2003-04-11  Richard Henderson  <rth@redhat.com>
+
+	* emit-rtl.c (gen_rtx): Zero '0' fields.
+
 2003-04-11  Richard Henderson  <rth@redhat.com>
 
 	PR c++/10202
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 96903a3148c7..f4b986cbb4e5 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -755,7 +755,8 @@ gen_rtx VPARAMS ((enum rtx_code code, enum machine_mode mode, ...))
 	{
 	  switch (*fmt++)
 	    {
-	    case '0':		/* Unused field.  */
+	    case '0':		/* Field with unknown use.  Zero it.  */
+	      X0EXP (rt, 1) = NULL_RTX;
 	      break;
 
 	    case 'i':		/* An integer?  */
-- 
2.47.2