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| author | Cherry Zhang <cherryyz@google.com> | 2020-10-28 09:12:20 -0400 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2020-10-28 09:12:20 -0400 |
| commit | a16e30d162c1c7408db7821e7b9513cefa09c6ca (patch) | |
| tree | af752ba9ba44c547df39bb0af9bff79f610ba9d5 /doc/install-source.html | |
| parent | 91e4d2d57bc341dd82c98247117114c851380aef (diff) | |
| parent | cf6cfba4d5358404dd890f6025e573a4b2156543 (diff) | |
| download | go-git-dev.link.tar.gz | |
[dev.link] all: merge branch 'master' into dev.linkdev.link
Clean merge.
Change-Id: Ia7b2808bc649790198d34c226a61d9e569084dc5
Diffstat (limited to 'doc/install-source.html')
| -rw-r--r-- | doc/install-source.html | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/doc/install-source.html b/doc/install-source.html index 86a4644c0c..c6dc3aed43 100644 --- a/doc/install-source.html +++ b/doc/install-source.html @@ -666,16 +666,13 @@ For example, you should not set <code>$GOHOSTARCH</code> to <code>arm</code> on an x86 system. </p> -<li><code>$GO386</code> (for <code>386</code> only, default is auto-detected -if built on either <code>386</code> or <code>amd64</code>, <code>387</code> otherwise) +<li><code>$GO386</code> (for <code>386</code> only, defaults to <code>sse2</code>) <p> -This controls the code generated by gc to use either the 387 floating-point unit -(set to <code>387</code>) or SSE2 instructions (set to <code>sse2</code>) for -floating point computations. +This variable controls how gc implements floating point computations. </p> <ul> - <li><code>GO386=387</code>: use x87 for floating point operations; should support all x86 chips (Pentium MMX or later).</li> - <li><code>GO386=sse2</code>: use SSE2 for floating point operations; has better performance than 387, but only available on Pentium 4/Opteron/Athlon 64 or later.</li> + <li><code>GO386=softfloat</code>: use software floating point operations; should support all x86 chips (Pentium MMX or later).</li> + <li><code>GO386=sse2</code>: use SSE2 for floating point operations; has better performance but only available on Pentium 4/Opteron/Athlon 64 or later.</li> </ul> </li> |