_content/doc/install/source: mention GOAMD64
Fixes golang/go#51704
Change-Id: I5f9efbbcd615ca7142311d8082fe1b36654df4eb
Reviewed-on: https://go-review.googlesource.com/c/website/+/393554
Reviewed-by: Keith Randall <khr@google.com>
Trust: Ian Lance Taylor <iant@google.com>
diff --git a/_content/doc/install/source.html b/_content/doc/install/source.html
index 450eda7..06e4f0b 100644
--- a/_content/doc/install/source.html
+++ b/_content/doc/install/source.html
@@ -714,6 +714,17 @@
</p>
</li>
+<li><code>$GOAMD64</code> (for <code>amd64</code> only;
+default is <code>v1</code>)
+<p>
+This sets the microarchitecture level for which to compile.
+Valid values are <code>v1</code> (default), <code>v2</code>, <code>v3</code>,
+<code>v4</code>.
+See <a href="https://go.dev/wiki/MinimumRequirements#amd64">the Go wiki
+MinimumRequirements page</a> for more information.
+</p>
+</li>
+
<li><code>$GOMIPS</code> (for <code>mips</code> and <code>mipsle</code> only) <br> <code>$GOMIPS64</code> (for <code>mips64</code> and <code>mips64le</code> only)
<p>
These variables set whether to use floating point instructions. Set to "<code>hardfloat</code>" to use floating point instructions; this is the default. Set to "<code>softfloat</code>" to use soft floating point.
