Browse Source

Added patterns

ceriel 34 years ago
parent
commit
87af8d0aa5
1 changed files with 9 additions and 0 deletions
  1. 9 0
      mach/m68k2/top/table

+ 9 - 0
mach/m68k2/top/table

@@ -65,6 +65,15 @@ move.l DREG,A : ANY A,X
 	{reg_subs_allowed(ANY) &&
 	 !is_dreg(A)	}		->	move.l DREG,A : ANY DREG,X ;
 
+cmp.b A,A : beq LAB			->	bra LAB ;
+cmp.w A,A : beq LAB			->	bra LAB ;
+cmp.l A,A : beq LAB			->	bra LAB ;
+
+/* cannot delete cmp's because they affect condition codes (obvious, but ... )*/
+cmp.b A,A : bne LAB			->	cmp.b A,A ;
+cmp.w A,A : bne LAB			->	cmp.w A,A ;
+cmp.l A,A : bne LAB			->	cmp.l A,A ;
+
 /* change some compares to tests */
 cmp.w #0,X : beq LAB			->	tst.w X : beq LAB ;
 cmp.w #0,X : bne LAB			->	tst.w X : bne LAB ;