[Patch][wwwdocs + gcc] nvptx – update for -mptx change – gcc-12/changes.html + gcc/docs/invoke.texi

[Tobias Burnus <tobias@codesourcery.com>]

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This patch updates the documentation for Tom's change of the default
-mptx= version - mentioning also -mptx=7.0.

I forgot whether ptx = 7.0 was working fine or whether there was
a reason not to mention it.
At some point, we also have to update -misa=... Currently, only
sm_30 and sm_35 are documented but sm_53, sm_75 and sm_80 are supported.
Can they now be documented are are there still issues?

OK to commit the wwwdocs + gcc invoke.texi patches?

Tobias

PS: I wonder whether any of the recent changes by chance did fix
https://gcc.gnu.org/PR102429 – nvptx: ICE with expand_GOMP_SIMT_XCHG_BFLY
            : in expand_insn, at optabs.c:7947 for DCmode (complex double)
Probably not, but it would have been nice nonetheless.
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invoke.texi: nvptx – update for -mptx change

gcc/ChangeLog:
	* doc/invoke.texi (-mptx): Document new default, add 7.0.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 7af5c51cc3c..61d7b4f077a 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -27250,9 +27250,9 @@ strings must be lower-case.  Valid ISA strings include @samp{sm_30} and
 
 @item -mptx=@var{version-string}
 @opindex mptx
-Generate code for given the specified PTX version (e.g.@: @samp{6.3}).
-Valid version strings include @samp{3.1} and @samp{6.3}.  The default PTX
-version is 3.1.
+Generate code for given the specified PTX version (e.g.@: @samp{7.0}).
+Valid version strings include @samp{3.1}, @samp{6.3}, and @samp{7.0}.
+The default PTX version is 6.3.
 
 @item -mmainkernel
 @opindex mmainkernel

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gcc-12/changes.html: nvptx – update for -mptx change

diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 2719b9d5..bd0babfb 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -404,7 +404,8 @@ a work-in-progress.</p>
 <ul>
   <li>The <code>-mptx</code> flag has been added to specify the PTX ISA version
       for the generated code; permitted values are <code>3.1</code>
-      (default, matches previous GCC versions) and <code>6.3</code>.
+      (matches previous GCC versions), <code>6.3</code> (new default) and
+      <code>7.0</code>.
   </li>
   <li>The new <code>__PTX_SM__</code> predefined macro allows code to check the
       compute model being targeted by the compiler.</li>