From 29cf90a4efb5680430072d21984d533075896111 Mon Sep 17 00:00:00 2001
From: Dave Cheney <dave@cheney.net>
Date: Thu, 14 Apr 2011 23:58:08 -0400
Subject: [PATCH] libmach: fix warnings.

Fixes #1706.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/4413051
---
 src/cmd/5g/peep.c | 4 ++--
 src/cmd/5l/obj.c  | 2 +-
 src/libmach/obj.c | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/cmd/5g/peep.c b/src/cmd/5g/peep.c
index ca12d70f263..6f36e12d42e 100644
--- a/src/cmd/5g/peep.c
+++ b/src/cmd/5g/peep.c
@@ -1134,7 +1134,7 @@ copyu(Prog *p, Adr *v, Adr *s)
 		if(v->type == D_REG) {
 			if(v->reg <= REGEXT && v->reg > exregoffset)
 				return 2;
-			if(v->reg == REGARG)
+			if(v->reg == (uchar)REGARG)
 				return 2;
 		}
 		if(v->type == D_FREG)
@@ -1152,7 +1152,7 @@ copyu(Prog *p, Adr *v, Adr *s)
 
 	case ATEXT:	/* funny */
 		if(v->type == D_REG)
-			if(v->reg == REGARG)
+			if(v->reg == (uchar)REGARG)
 				return 3;
 		return 0;
 	}
diff --git a/src/cmd/5l/obj.c b/src/cmd/5l/obj.c
index c82494bc533..c4a2bfc3f08 100644
--- a/src/cmd/5l/obj.c
+++ b/src/cmd/5l/obj.c
@@ -317,7 +317,7 @@ zaddr(Biobuf *f, Adr *a, Sym *h[])
 	a->sym = h[c];
 	a->name = Bgetc(f);
 
-	if(a->reg < 0 || a->reg > NREG) {
+	if((schar)a->reg < 0 || a->reg > NREG) {
 		print("register out of range %d\n", a->reg);
 		Bputc(f, ALAST+1);
 		return;	/*  force real diagnostic */
diff --git a/src/libmach/obj.c b/src/libmach/obj.c
index 1ffe7a0ee16..7d660787b5b 100644
--- a/src/libmach/obj.c
+++ b/src/libmach/obj.c
@@ -215,7 +215,7 @@ processprog(Prog *p, int doautos)
 {
 	if(p->kind == aNone)
 		return 1;
-	if(p->sym < 0 || p->sym >= NNAMES)
+	if((schar)p->sym < 0 || p->sym >= NNAMES)
 		return 0;
 	switch(p->kind)
 	{