From: Carl Shapiro <cshapiro@google.com>
Date: Tue, 2 Apr 2013 20:45:56 +0000 (-0700)
Subject: runtime: fix a comment regarding default floating point precision
X-Git-Tag: go1.1rc2~222
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=019c8fc6255c21e4b7aa556269ae51d355728ef6;p=gostls13.git

runtime: fix a comment regarding default floating point precision

The expected precision setting for the x87 on Win32 is 53-bit
but MinGW resets the floating point unit to 64-bit.  Win32
object code generally expects values to be rounded to double,
not double extended, precision.

R=golang-dev, khr
CC=golang-dev
https://golang.org/cl/8175044
---

diff --git a/src/pkg/runtime/asm_386.s b/src/pkg/runtime/asm_386.s
index 805405a737..57de87b8d4 100644
--- a/src/pkg/runtime/asm_386.s
+++ b/src/pkg/runtime/asm_386.s
@@ -108,7 +108,7 @@ TEXT runtime·breakpoint(SB),7,$0
 	RET
 
 TEXT runtime·asminit(SB),7,$0
-	// Linux, Windows start the FPU in extended double precision.
+	// Linux and MinGW start the FPU in extended double precision.
 	// Other operating systems use double precision.
 	// Change to double precision to match them,
 	// and to match other hardware that only has double.