From: Robert Griesemer <gri@golang.org>
Date: Sat, 20 Feb 2016 19:16:21 +0000 (-0800)
Subject: cmd/compile: test for lower-case letters first in isAlpha
X-Git-Tag: go1.7beta1~1800
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=20ee67acc920807d19d336b1cc1614d2ad529953;p=gostls13.git

cmd/compile: test for lower-case letters first in isAlpha

Lower-case letters are more common in identifiers.

Change-Id: I49c39e3ac810eea57d15c1433608daec212c9792
Reviewed-on: https://go-review.googlesource.com/19760
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
---

diff --git a/src/cmd/compile/internal/gc/lex.go b/src/cmd/compile/internal/gc/lex.go
index a6f65bec62..55d988b70a 100644
--- a/src/cmd/compile/internal/gc/lex.go
+++ b/src/cmd/compile/internal/gc/lex.go
@@ -832,7 +832,7 @@ func isSpace(c int) bool {
 }
 
 func isAlpha(c int) bool {
-	return 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z'
+	return 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z'
 }
 
 func isDigit(c int) bool {