gc: fix alignment on non-amd64

R=ken2
CC=golang-dev
https://golang.org/cl/870041

diff --git a/src/cmd/gc/align.c b/src/cmd/gc/align.c
index 6d9083bc3299e595c8a394310a8b8e5e1ca1923a..c4facf1be01e0aeeab20f090be62a428bdc4408e 100644 (file)
--- a/src/cmd/gc/align.c
+++ b/src/cmd/gc/align.c
@@ -618,6 +618,6 @@ argsize(Type *t)
                fp = funcnext(&save);
        }
 
-       w = (w+7) & ~7;
+       w = (w+widthptr-1) & ~(widthptr-1);
        return w;
 }