[nvptx, doc] Document predefined macros at march and mptx Document predefined macros: - __PTX_SM__ , - __PTX_ISA_VERSION_MAJOR__ and - __PTX_ISA_VERSION_MINOR__ . gcc/ChangeLog: 2022-03-29 Tom de Vries * doc/invoke.texi (march): Document __PTX_SM__. (mptx): Document __PTX_ISA_VERSION_MAJOR__ and __PTX_ISA_VERSION_MINOR__. Co-Authored-By: Tobias Burnus --- gcc/doc/invoke.texi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 43b75132c91b..09715a510b4d 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -27547,6 +27547,10 @@ Generate code for the specified PTX ISA target architecture @samp{sm_35}, @samp{sm_53}, @samp{sm_70}, @samp{sm_75} and @samp{sm_80}. The default target architecture is sm_30. +This option sets the value of the preprocessor macro +@code{__PTX_SM__}; for instance, for @samp{sm_35}, it has the value +@samp{350}. + @item -misa=@var{architecture-string} @opindex misa Alias of @option{-march=}. @@ -27566,6 +27570,11 @@ Valid version strings include @samp{3.1}, @samp{6.0}, @samp{6.3}, and version is required for specified PTX ISA target architecture via option @option{-march=}. +This option sets the values of the preprocessor macros +@code{__PTX_ISA_VERSION_MAJOR__} and @code{__PTX_ISA_VERSION_MINOR__}; +for instance, for @samp{3.1} the macros have the values @samp{3} and +@samp{1}, respectively. + @item -mmainkernel @opindex mmainkernel Link in code for a __main kernel. This is for stand-alone instead of