arm code gen error in unsign extend

R=rsc
CC=golang-dev
https://golang.org/cl/2295041

diff --git a/src/cmd/5g/gsubr.c b/src/cmd/5g/gsubr.c
index 88837c35676099cba0b555c1f34a98c48383e728..6cccdac25f25fb12908e35666ac3405f89cc9a2b 100644 (file)
--- a/src/cmd/5g/gsubr.c
+++ b/src/cmd/5g/gsubr.c
@@ -1395,15 +1395,21 @@ optoas(int op, Type *t)
 
        case CASE(OAS, TBOOL):
        case CASE(OAS, TINT8):
-       case CASE(OAS, TUINT8):
                a = AMOVB;
                break;
 
+       case CASE(OAS, TUINT8):
+               a = AMOVBU;
+               break;
+
        case CASE(OAS, TINT16):
-       case CASE(OAS, TUINT16):
                a = AMOVH;
                break;
 
+       case CASE(OAS, TUINT16):
+               a = AMOVHU;
+               break;
+
        case CASE(OAS, TINT32):
        case CASE(OAS, TUINT32):
        case CASE(OAS, TPTR32):