gcc is able to optimize away either the modulo or the logical and. This
makes no difference to gcc.
clang is only able to optimize away the logical and. This allows clang
to generate faster code for BITFIELD_MASK.
As for BITFIELD64_MASK, this also makes no difference to clang except it
fixes a compile error for BITFIELD64_MASK(64):
error: shift count >= width of type [-Werror,-Wshift-count-overflow]
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9989
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25757>
We have both PACKED and ENUM_PACKED macros which expand to the same
thing. PACKED was based on a meson check for function attributes while
ENUM_PACKED appears to be a legacy gallium thing which was based on
defined(__GCC__). This changes the one use of ENUM_PACKED to PACKED and
deletes ENUM_PACKED.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20412>
From clang 16 has_trivial_destructor is deprecated.
Use the replacement __is_trivially_destructible if it
is available.
Fixes new warnings with clang 16 like:
../src/compiler/glsl/list.h:58:4: warning: builtin __has_trivial_destructor is deprecated; use __is_trivially_destructible instead [-Wdeprecated-builtins]
../src/util/ralloc.h:551:4: note: expanded from macro 'DECLARE_RZALLOC_CXX_OPERATORS'
DECLARE_ALLOC_CXX_OPERATORS_TEMPLATE(type, rzalloc_size)
^
../src/util/ralloc.h:542:12: note: expanded from macro 'DECLARE_ALLOC_CXX_OPERATORS_TEMPLATE'
if (!HAS_TRIVIAL_DESTRUCTOR(TYPE)) \
^
../src/util/macros.h:233:44: note: expanded from macro 'HAS_TRIVIAL_DESTRUCTOR'
Reviewed-by: Eric Engestrom <eric@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18423>
Due to how alignas is defined, it itsn't allowed to use it on a struct,
it needs to be used on the first member instead. So move the declaration
in those cases.
This still leaves the ALIGN16 macro using compiler-specific directives,
because it's a lot of work to untangle the above. This probably deserves
its own MR.
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16908>
Since we now require C11 and C++14, we can use the standard
static_asserts from the standard library instead of rolling our own
compiler-specific versions.
To avoid needing scopes around usage in switch cases, keep the
while-wrapping from before. This means it still can't be used outside of
functions, but that should be fine; we should probably just use
static_assert directly in those cases anyway.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16670>
This macro kinda complements util_is_power_of_two_*, but is implemented
as a macro. This means that it can expand to a constant integral
expression, and thus be used in static_assert.
Because we don't really need the added complexity, this doesn't handle
zero correctly. But that's OK, because the call-sites will.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16670>
Many places need to know the maximum or minimum possible value for a
given size integer... so everyone just open-codes their favorite
version. There is some potential to hit either undefined or
implementation-defined behavior, so having one version that Just Works
seems beneficial.
v2: Fix copy-and-pasted bug (INT64_MAX instead of INT64_MIN) in
u_intmin. Noticed by CI. Lol. Rename functions
`s/u_(uint|int)(min|max)/u_\1N_\2/g`. Suggested by Jason. Add some
unit tests that would have caught the copy-and-paste bug before wasting
CI time. Change the implementation of u_intN_min to use the same
pattern as stdint.h. This avoids the integer division. Noticed by
Jason.
v3: Add changes to convert_clear_color
(src/gallium/drivers/iris/iris_clear.c). Suggested by Nanley.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Suggested-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12177>
Replace mesa's slightly different container_of() with one more aligned
to the linux kernel's version which takes a type as the 2nd param. This
avoids warnings like:
freedreno_context.c:396:44: warning: variable 'batch' is uninitialized when used within its own initialization [-Wuninitialized]
At the same time, we can add additional build-time type-checking asserts
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7941>
Right now, all it does is provide the new standard `static_assert()` name.
Fixes: fbf7c38da3 ("egl/wayland: use bitset.h for `formats` bit set")
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Tested-by: Bhushan Shah <bshah@kde.org>
Chia-I Wu