From: Brad Fitzpatrick <bradfitz@golang.org>
Date: Fri, 19 Aug 2016 01:24:21 +0000 (-0700)
Subject: cmd/internal/obj: update Bool2int to the form optimized by the compiler
X-Git-Tag: go1.8beta1~1773
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=a25a7ad70323e8edea4b607aad7c9d2bb96fcc82;p=gostls13.git

cmd/internal/obj: update Bool2int to the form optimized by the compiler

As of https://golang.org/cl/22711 the compiler optimizes this form.

Updates #6011

Change-Id: Ibc6c529dfa24d42f4aab78ebd6722e1d72cb6038
Reviewed-on: https://go-review.googlesource.com/27395
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---

diff --git a/src/cmd/internal/obj/util.go b/src/cmd/internal/obj/util.go
index 1572071ed3..101e0ea3c6 100644
--- a/src/cmd/internal/obj/util.go
+++ b/src/cmd/internal/obj/util.go
@@ -504,8 +504,13 @@ var Anames = []string{
 }
 
 func Bool2int(b bool) int {
+	// The compiler currently only optimizes this form.
+	// See issue 6011.
+	var i int
 	if b {
-		return 1
+		i = 1
+	} else {
+		i = 0
 	}
-	return 0
+	return i
 }