From: Shenghou Ma <minux@golang.org>
Date: Mon, 13 Apr 2015 19:50:56 +0000 (-0400)
Subject: cmd/dist: detect sse2 even with gccgo
X-Git-Tag: go1.5beta1~1129
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=ce43e1fec875ed92bf3d4ee7b7f81aed30a617f7;p=gostls13.git

cmd/dist: detect sse2 even with gccgo

Change-Id: Idfb20bfe130d9a54d9f5aae8eab8a34655d30610
Reviewed-on: https://go-review.googlesource.com/8865
Reviewed-by: Ian Lance Taylor <iant@golang.org>
---

diff --git a/src/cmd/dist/util_gccgo.go b/src/cmd/dist/util_gccgo.go
index f680e7b649..14ac70bca5 100644
--- a/src/cmd/dist/util_gccgo.go
+++ b/src/cmd/dist/util_gccgo.go
@@ -6,4 +6,15 @@
 
 package main
 
-func cansse2() bool { return false }
+/*
+int supports_sse2() {
+#if defined(__i386__) || defined(__x86_64__)
+	return __builtin_cpu_supports("sse2");
+#else
+	return 0;
+#endif
+}
+*/
+import "C"
+
+func cansse2() bool { return C.supports_sse2() != 0 }