runtime: slience warning on 32-bit platforms

LGTM=iant
R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/80250043

diff --git a/src/pkg/runtime/heapdump.c b/src/pkg/runtime/heapdump.c
index db0178eb652c70d360c3ff19f33f4a42959bf188..bc0fd49c0a3ad8e331b3c6cba9ee9f75dc5fb319 100644 (file)
--- a/src/pkg/runtime/heapdump.c
+++ b/src/pkg/runtime/heapdump.c
@@ -803,7 +803,7 @@ playgcprog(uintptr offset, uintptr *prog, void (*callback)(void*,uintptr,uintptr
                        prog += 4;
                        break;
                default:
-                       runtime·printf("%D\n", prog[0]);
+                       runtime·printf("%D\n", (uint64)prog[0]);
                        runtime·throw("bad gc op");
                }
        }