This reverts commit 4fb2eddfdf.
This reverts commit 7a1deb16f8.
This reverts commit 2b6a172343.
This reverts commit 5af81393e4.
This reverts commit 87900afe5b.
A couple of problems were discovered after this series was merged that
cause breakage in different configurations:
(1) It seems that using -mf16c also enables AVX, leading to SIGILL on
platforms that do not support AVX.
(2) Since clang only warns about unknown flags, and as I understand
it Meson's handling in cc.has_argument() is broken, the F16C code is
wrongly enabled when clang is used, even for example on ARM, leading
to a compilation error.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/3583
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6969>
In order to be coherent with the pre-existent functions, this new API
is the one meant to be used when doing half float to float
conversions. It is no more than a wrapper for the softfloat.h API but
we meant to keep that one private.
v2:
- Replace custom f32 -> f16 RTZ implementation with the softfloat
one (Andres).
v3:
- Added API usage clarifying comments (Caio).
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Andres Gomez <agomez@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The two implementations differ across the entire input range only in
that u_half.h preserves mantissa bits for NaNs. The u_half.h version
shaves 15% off of the text size of half_float.o.
Reviewed-by: Thomas Helland <thomashelland90@gmail.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Only used, when asserts are enabled.
Fixes an unused-variable warning with gcc-8:
../../../src/util/half_float.c: In function '_mesa_half_to_unorm8':
../../../src/util/half_float.c:189:14: warning: unused variable 's' [-Wunused-variable]
const int s = (val >> 15) & 0x1;
^
Signed-off-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Needed in NIR too, so move out of mesa/main/imports.c
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Rob Clark <robclark@freedesktop.org>
Marek Olšák
Matt Turner
Samuel Iglesias Gonsálvez
Eric Engestrom
Eric Anholt
Kai Wasserbäch
Rob Clark