6g: fix registerization of temporaries

Use correct range in allocated register test.

R=rsc, ken2
CC=golang-dev
https://golang.org/cl/4073049

diff --git a/src/cmd/6g/gsubr.c b/src/cmd/6g/gsubr.c
index ebb61ea9459bb2f83af5137f763719c3b0cc5ba1..c3dac1fdcdc606afa6bfff458601ca8b63b52293 100644 (file)
--- a/src/cmd/6g/gsubr.c
+++ b/src/cmd/6g/gsubr.c
@@ -246,7 +246,7 @@ anyregalloc(void)
 {
        int i, j;
 
-       for(i=D_AL; i<=D_DI; i++) {
+       for(i=D_AX; i<=D_R15; i++) {
                if(reg[i] == 0)
                        goto ok;
                for(j=0; j<nelem(resvd); j++)