From 84ef63b9d5d2a7610047839cbbd7b5751838e1b4 Mon Sep 17 00:00:00 2001
From: Kai Backman <kaib@golang.org>
Date: Thu, 2 Jul 2009 21:35:39 -0700
Subject: [PATCH] minor comment and debug flag for dumping all oplooks.

R=rsc
APPROVED=rsc
DELTA=4  (0 added, 0 deleted, 4 changed)
OCL=31016
CL=31126
---
 src/cmd/5l/optab.c | 4 ++--
 src/cmd/5l/span.c  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/cmd/5l/optab.c b/src/cmd/5l/optab.c
index 3d7015d14c..88067c4b0a 100644
--- a/src/cmd/5l/optab.c
+++ b/src/cmd/5l/optab.c
@@ -32,8 +32,8 @@
 
 Optab	optab[] =
 {
-	/* Data layout:
-	  OPCODE,	from, prog->reg, to,		 magic numbers? */
+	/* struct Optab:
+	  OPCODE,	from, prog->reg, to,		 type,size,param,flag */
 	{ ATEXT,	C_LEXT,	C_NONE,	C_LCON, 	 0, 0, 0 },
 	{ ATEXT,	C_LEXT,	C_REG,	C_LCON, 	 0, 0, 0 },
 	{ ATEXT,	C_ADDR,	C_NONE,	C_LCON, 	 0, 0, 0 },
diff --git a/src/cmd/5l/span.c b/src/cmd/5l/span.c
index ef80bed9c3..18d6cd45c4 100644
--- a/src/cmd/5l/span.c
+++ b/src/cmd/5l/span.c
@@ -849,8 +849,8 @@ oplook(Prog *p)
 		}
 		o = orange[r].stop; /* just generate an error */
 	}
-	if(0) {
-		print("oplook %A %d %d %d\n",
+	if(debug['O']) {
+		print("oplook %A %O %O %O\n",
 			(int)p->as, a1, a2, a3);
 		print("		%d %d\n", p->from.type, p->to.type);
 	}