| Message ID | 20240416002605.1585916-1-quic_apinski@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Document that vector_size works with typedefs [PR92880] | expand |
On Tue, Apr 16, 2024 at 2:26 AM Andrew Pinski <quic_apinski@quicinc.com> wrote: > > This just adds a clause to make it more obvious that the vector_size > attribute extension works with typedefs. > Note this whole section needs a rewrite to be a similar format as other > extensions. But that is for another day. > > OK? OK > > gcc/ChangeLog: > > PR c/92880 > * doc/extend.texi (Using Vector Instructions): Add that > the base_types could be a typedef of them. > > Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com> > --- > gcc/doc/extend.texi | 13 +++++++------ > 1 file changed, 7 insertions(+), 6 deletions(-) > > diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi > index 7b54a241a7b..e290265d68d 100644 > --- a/gcc/doc/extend.texi > +++ b/gcc/doc/extend.texi > @@ -12901,12 +12901,13 @@ typedef int v4si __attribute__ ((vector_size (16))); > @end smallexample > > @noindent > -The @code{int} type specifies the @dfn{base type}, while the attribute specifies > -the vector size for the variable, measured in bytes. For example, the > -declaration above causes the compiler to set the mode for the @code{v4si} > -type to be 16 bytes wide and divided into @code{int} sized units. For > -a 32-bit @code{int} this means a vector of 4 units of 4 bytes, and the > -corresponding mode of @code{foo} is @acronym{V4SI}. > +The @code{int} type specifies the @dfn{base type} (which can be a > +@code{typedef}), while the attribute specifies the vector size for the > +variable, measured in bytes. For example, the declaration above causes > +the compiler to set the mode for the @code{v4si} type to be 16 bytes wide > +and divided into @code{int} sized units. For a 32-bit @code{int} this > +means a vector of 4 units of 4 bytes, and the corresponding mode of > +@code{foo} is @acronym{V4SI}. > > The @code{vector_size} attribute is only applicable to integral and > floating scalars, although arrays, pointers, and function return values > -- > 2.43.0 >
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 7b54a241a7b..e290265d68d 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -12901,12 +12901,13 @@ typedef int v4si __attribute__ ((vector_size (16))); @end smallexample @noindent -The @code{int} type specifies the @dfn{base type}, while the attribute specifies -the vector size for the variable, measured in bytes. For example, the -declaration above causes the compiler to set the mode for the @code{v4si} -type to be 16 bytes wide and divided into @code{int} sized units. For -a 32-bit @code{int} this means a vector of 4 units of 4 bytes, and the -corresponding mode of @code{foo} is @acronym{V4SI}. +The @code{int} type specifies the @dfn{base type} (which can be a +@code{typedef}), while the attribute specifies the vector size for the +variable, measured in bytes. For example, the declaration above causes +the compiler to set the mode for the @code{v4si} type to be 16 bytes wide +and divided into @code{int} sized units. For a 32-bit @code{int} this +means a vector of 4 units of 4 bytes, and the corresponding mode of +@code{foo} is @acronym{V4SI}. The @code{vector_size} attribute is only applicable to integral and floating scalars, although arrays, pointers, and function return values
This just adds a clause to make it more obvious that the vector_size attribute extension works with typedefs. Note this whole section needs a rewrite to be a similar format as other extensions. But that is for another day. OK? gcc/ChangeLog: PR c/92880 * doc/extend.texi (Using Vector Instructions): Add that the base_types could be a typedef of them. Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com> --- gcc/doc/extend.texi | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)