doc: update architectures on source install instructions
Fixes #16099
Change-Id: I334c1f04dfc98c4a07e33745819d890b5fcb1673
Reviewed-on: https://go-review.googlesource.com/24243
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
diff --git a/doc/install-source.html b/doc/install-source.html
index 1d7df3d..991be3f 100644
--- a/doc/install-source.html
+++ b/doc/install-source.html
@@ -33,7 +33,7 @@
</p>
<p>
-The Go compilers support six instruction sets.
+The Go compilers support seven instruction sets.
There are important differences in the quality of the compilers for the different
architectures.
</p>
@@ -43,15 +43,17 @@
<code>amd64</code> (also known as <code>x86-64</code>)
</dt>
<dd>
- A mature implementation. The compiler has an effective
- optimizer (registerizer) and generates good code (although
- <code>gccgo</code> can do noticeably better sometimes).
+ A mature implementation. New in 1.7 is its SSA-based back end
+ that generates compact, efficient code.
</dd>
<dt>
<code>386</code> (<code>x86</code> or <code>x86-32</code>)
</dt>
<dd>
- Comparable to the <code>amd64</code> port.
+ Comparable to the <code>amd64</code> port, but does
+ not yet use the SSA-based back end. It has an effective
+ optimizer (registerizer) and generates good code (although
+ <code>gccgo</code> can do noticeably better sometimes).
</dd>
<dt>
<code>arm</code> (<code>ARM</code>)
@@ -77,6 +79,12 @@
<dd>
Supports Linux binaries. New in 1.6 and not as well exercised as other ports.
</dd>
+<dt>
+ <code>s390x</code> (IBM System z)
+</dt>
+<dd>
+ Supports Linux binaries. New in 1.7 and not as well exercised as other ports.
+</dd>
</dl>
<p>
