I need this for emitting the SO program for turnip, where we want to
skip over unused slots by manually advancing the counter. freedreno will
also want to use it when it supports multistream streamout.
Reviewed-by: Rob Clark <robdclark@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6962>
__size, in particular, makes this macro rather confusing to understand
how to use. Hopefully this comment saves future users the headache.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3499>
The MASK macro is used in the RANGE macro, and it should
return the pre-bitset word mask for the (b) value.
i.e.
BITSET_MASK(0) should be undefined since it's meaningless.
BITSET_MASK(31) should give 0x7fffffff
BITSET_MASK(32) should give 0xffffffff
BITSET_MASK(33) should give 0x00000001
BITSET_MASK(64) should give 0xffffffff
However then BITSET_RANGE ends up broken for cases where
it's (b) value is the 0,32,64 value as in that case the lower
mask would be 0 not 0xffffffff.
This fixes the unit tests that I've added, and my code that
uses bitsets.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Fixes: bb38cadb1c "More GLSL code"
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
I want to be able to do BITSET_TEST() != BITSET_TEST() and this isn't
currently possible because BITSET_TEST() returns a random bit. Compare
to zero to get an actual Boolean.
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes errors thrown by GCC's Undefined Behaviour sanitizer (ubsan) every
time this macro is used.
Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
BITSET_FFS(x) macro makes use of ARRAY_SIZE(x) macro which is
defined in util/macro.h. Include it directy to make usage more
straightforward.
Fixes: 692bd4a1ab ("util: replace Elements() with ARRAY_SIZE()")
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Previously bitset.h would include u_math.h to get bitscan.h. u_math.h
lives in src/gallium/auxiliary/util while both bitset.h and bitscan.h
live in src/util. Having the one file directly include another file
that lives in the same directory makes much more sense.
As a side-effect, several files need to directly include standard header
files that were previously indirectly included.
v2: Fix build break in src/amd/common/ac_nir_to_llvm.c.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
In order to fix a build failure on compilers not implementing
unrestricted unions, which is a C++11 feature.
v2: Provide signed integer comparison and assignment operators instead
of BITSET_WORD ones to avoid spurious ambiguity warnings on
comparisons with a signed integer literal.
Fixes: ba79a90fb5 "glsl: Switch ast_type_qualifier to a 128-bit bitset."
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105238
Tested-by: Roland Scheidegger <sroland@vmware.com>
Tested-By: George Kyriazis <george.kyriazis@intel.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
