[Patch] invoke.texi: Add sm_35 to Nvidia PTX's -misa=

[Tobias Burnus]

Hi Tom,

this documents the new sm_35 value to -misa=, which Roger added
(and uses for _Float16).

OK?

Tobias
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invoke.texi: Add sm_35 to Nvidia PTX's -misa=

gcc/ChangeLog:

	* doc/invoke.texi (Nvidia PTX): Add sm_35 to -misa.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 9b4371b9213..b68905436e5 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -27035,8 +27035,8 @@ supported.
 @item -misa=@var{ISA-string}
 @opindex march
 Generate code for given the specified PTX ISA (e.g.@: @samp{sm_35}).  ISA
-strings must be lower-case.  Valid ISA strings include @samp{sm_30} and
-@samp{sm_35}.  The default ISA is sm_35.
+strings must be lower-case.  Valid ISA strings include @samp{sm_30}, 
+@samp{sm_35} and @samp{sm_53}.  The default ISA is sm_35.
 
 @item -mptx=@var{version-string}
 @opindex mptx