| Message ID | 1441720851-29984-1-git-send-email-alan.lawrence@arm.com |
|---|---|
| State | New |
| Headers | show |
On 08/09/15 15:00, Alan Lawrence wrote: > Original message here: https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02363.html > > On 28/07/15 12:27, Alan Lawrence wrote: >> This documents the change to arm_neon_fp16_ok in the first patch; the addition >> of arm_neon_fp16_hw_ok in the last patch; and corrects a cross-reference. >> >> (I tried using an @ref instead of "Implies previous." but the page ref looked >> very out-of-place in PDF when I am referring to the previous item in the list!) > The change to arm_neon_fp16_ok was committed in r227033 (as per https://gcc.gnu.org/ml/gcc-patches/2015-07/msg02470.html). > > I've now updated this patch with the change to arm_neon_fp16_hw (rather than > _hw_ok), as per https://gcc.gnu.org/ml/gcc-patches/2015-09/msg00488.html. > > OK for trunk? Ok. Thanks, Kyrill > > Thanks, Alan > > gcc/ChangeLog: > > * doc/sourcebuild.texi (arm_neon_fp16): Correct cross-reference. > (arm_neon_fp16_ok): Document adding of -mfp16-format=ieee flag. > (arm_neon_fp16_hw): New. > --- > gcc/doc/sourcebuild.texi | 9 +++++++-- > 1 file changed, 7 insertions(+), 2 deletions(-) > > diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi > index 7aa9c9d..5dc7c81 100644 > --- a/gcc/doc/sourcebuild.texi > +++ b/gcc/doc/sourcebuild.texi > @@ -1549,7 +1549,12 @@ options. Some multilibs may be incompatible with these options. > @item arm_neon_fp16_ok > @anchor{arm_neon_fp16_ok} > ARM Target supports @code{-mfpu=neon-fp16 -mfloat-abi=softfp} or compatible > -options. Some multilibs may be incompatible with these options. > +options, including @code{-mfp16-format=ieee} if necessary to obtain the > +@code{__fp16} type. Some multilibs may be incompatible with these options. > + > +@item arm_neon_fp16_hw > +Test system supports executing Neon half-precision float instructions. > +(Implies previous.) > > @item arm_thumb1_ok > ARM target generates Thumb-1 code for @code{-mthumb}. > @@ -2035,7 +2040,7 @@ keyword}. > @item arm_neon_fp16 > NEON and half-precision floating point support. Only ARM targets > support this feature, and only then in certain modes; see > -the @ref{arm_neon_ok,,arm_neon_fp16_ok effective target keyword}. > +the @ref{arm_neon_fp16_ok,,arm_neon_fp16_ok effective target keyword}. > > @item arm_vfp3 > arm vfp3 floating point support; see
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi index 7aa9c9d..5dc7c81 100644 --- a/gcc/doc/sourcebuild.texi +++ b/gcc/doc/sourcebuild.texi @@ -1549,7 +1549,12 @@ options. Some multilibs may be incompatible with these options. @item arm_neon_fp16_ok @anchor{arm_neon_fp16_ok} ARM Target supports @code{-mfpu=neon-fp16 -mfloat-abi=softfp} or compatible -options. Some multilibs may be incompatible with these options. +options, including @code{-mfp16-format=ieee} if necessary to obtain the +@code{__fp16} type. Some multilibs may be incompatible with these options. + +@item arm_neon_fp16_hw +Test system supports executing Neon half-precision float instructions. +(Implies previous.) @item arm_thumb1_ok ARM target generates Thumb-1 code for @code{-mthumb}. @@ -2035,7 +2040,7 @@ keyword}. @item arm_neon_fp16 NEON and half-precision floating point support. Only ARM targets support this feature, and only then in certain modes; see -the @ref{arm_neon_ok,,arm_neon_fp16_ok effective target keyword}. +the @ref{arm_neon_fp16_ok,,arm_neon_fp16_ok effective target keyword}. @item arm_vfp3 arm vfp3 floating point support; see