From d1110ff16b3fd197173bf183b2e1ab50f48266db Mon Sep 17 00:00:00 2001
From: Walter Bright <walter@walterbright.com>
Date: Tue, 2 Aug 2011 19:11:30 -0700
Subject: [PATCH] remove redundant MOV

---
 src/backend/cod4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/backend/cod4.c b/src/backend/cod4.c
index 4dc15ddb5f55..c0b52281a9a0 100644
--- a/src/backend/cod4.c
+++ b/src/backend/cod4.c
@@ -654,7 +654,7 @@ code *cdeq(elem *e,regm_t *pretregs)
             for (; TRUE; sz -= REGSIZE)
             {
                 // Do not generate mov from register onto itself
-                if (regvar && reg == (cs.Irm & 7))
+                if (regvar && reg == ((cs.Irm & 7) | (cs.Irex & REX_B ? 8 : 0)))
                     break;
                 if (sz == 2)            // if 16 bit operand
                     cs.Iflags |= CFopsize;