commit 44e903158faca58bf495dc2f263d6973f62b9d17
author Dave Cheney <dave@cheney.net> Fri Mar 06 21:18:41 2015 +1100
committer Dave Cheney <dave@cheney.net> Mon Mar 09 05:01:14 2015 +0000
tree 7c9bda02a1cc667e174b2f253d3626defe1369eb
parent 42c8be4414e98f44c4bdb6d6cab126c8b7ed29a3

cmd/internal/gc: more Node cleanups

More Node cleanups, these ones touch go.y.

- convert Node.Implicit to bool
- convert Node.Used to bool

Change-Id: I85c7ff9e66cee7122b560adedc995166c874f2f2
Reviewed-on: https://go-review.googlesource.com/7124
Reviewed-by: Keith Randall <khr@golang.org>

src/cmd/internal/gc/gsubr.go

diff --git a/src/cmd/internal/gc/gsubr.go b/src/cmd/internal/gc/gsubr.go
index e86d2ab..44e0d22 100644
--- a/src/cmd/internal/gc/gsubr.go
+++ b/src/cmd/internal/gc/gsubr.go
@@ -174,12 +174,12 @@
 		if p == nil {
 			break
 		}
-		if p.As == obj.ATYPE && p.From.Node != nil && p.From.Name == obj.NAME_AUTO && ((p.From.Node).(*Node)).Used == 0 {
+		if p.As == obj.ATYPE && p.From.Node != nil && p.From.Name == obj.NAME_AUTO && !((p.From.Node).(*Node)).Used {
 			*lp = p.Link
 			continue
 		}
 
-		if (p.As == obj.AVARDEF || p.As == obj.AVARKILL) && p.To.Node != nil && ((p.To.Node).(*Node)).Used == 0 {
+		if (p.As == obj.AVARDEF || p.As == obj.AVARKILL) && p.To.Node != nil && !((p.To.Node).(*Node)).Used {
 			// Cannot remove VARDEF instruction, because - unlike TYPE handled above -
 			// VARDEFs are interspersed with other code, and a jump might be using the
 			// VARDEF as a target. Replace with a no-op instead. A later pass will remove
@@ -267,11 +267,11 @@
 		}
 
 		if p.From.Node != nil {
-			((p.From.Node).(*Node)).Used = 1
+			((p.From.Node).(*Node)).Used = true
 		}
 
 		if p.To.Node != nil {
-			((p.To.Node).(*Node)).Used = 1
+			((p.To.Node).(*Node)).Used = true
 		}
 	}
 }