remove redundant MOV

dlang · Aug 3, 2011 · d1110ff · d1110ff
1 parent fa25f90
commit d1110ff
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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;