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doc: release notes for GOARM hardfloat/softfloat change 

See CL 514907

Change-Id: Ieba2d7737115c66990b0ea7629033e787a99be93
Reviewed-on: https://go-review.googlesource.com/c/go/+/545655
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ludi Rehak <ludi317@gmail.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Keith Randall <khr@golang.org>
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Keith Randall 2023-11-28 13:09:42 -08:00 committed by Gopher Robot
parent c418da34cd
commit 636c6e350d
1 changed files with 8 additions and 1 deletions
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@ -570,8 +570,15 @@ Do not send CLs removing the interior tags from such phrases.
<h2 id="ports">Ports</h2>
<h3 id="arm">Arm</h3>
<p><!-- CL 514907 -->
TODO: <a href="https://go.dev/cl/514907">https://go.dev/cl/514907</a>: all: add floating point option for ARM targets
The <code>GOARM</code> environment variable now allows you to select whether to use software or hardware floating point.
Previously, valid <code>GOARM</code> values were <code>5</code>, <code>6</code>, or <code>7</code>. Now those same values can
be optionally followed by <code>,softfloat</code> or <code>,hardfloat</code> to select the floating-point implementation.
</p>
<p>
This new option defaults to <code>softfloat</code> for version <code>5</code> and <code>hardfloat</code> for versions
<code>6</code> and <code>7</code>.
</p>
<p><!-- CL 481315 -->