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
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>
