This is a very silly case, but there's no reason not to handle it efficiently,
and this implementation is faster than the fallback. Noticed when playing with
scratch optimizations.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32322>
This was obviously broken because demote results in more helper invocations.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Fixes: b447f5049b ("nir: Add a discard optimization pass")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32310>
This requirement is currently satisfied by the usage in panfrost and
lima.
Signed-off-by: Benjamin Lee <benjamin.lee@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32084>
Because we are doing perspective division before clipping, small
gl_Position.w values will give Inf for positions and interpolated
varyings. Before this change, primitives containing a vertex with w=0
were invisible.
This is only used in panfrost and lima.
Signed-off-by: Benjamin Lee <benjamin.lee@collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32084>
See comment in the pass for motivation. To be used for asahi clc.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32226>
OpenCL has 64-bit global IDs, but for driver-internal OpenCL we only need
32-bit. Might as well lower in nir_lower_system_values instead of bringing up a
whole new pass just for this.
Will be used for asahi precomp
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32210>
No fossil-db changes.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32145>
Discard doesn't exist anymore. There is only terminate.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32145>
This kind of recursion is unreliable with large shaders or small stack
limits.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32145>
This fixes a potential issue where nir_opt_move_discards_to_top would
always return progress.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Fixes: f97fb1fa55 ("nir: Add a nir_instr_move helper")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32145>
we want some enum values on device for NIR->CL bindings. specifically,
src_type/dest_type indices.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32208>
if we have them. example:
call libagx_geometry_input_address %10, p %3, vtx %9, location %0 (0x0)
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32208>
I wrote this in my query copy shader, it didn't get the codegen I expected, so I
investigated.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32208>
This will need to be set to true when the GLSL linker lowers IO, which
can later be unlowered by st/mesa, and then drivers can lower it again
without load_interpolated_input. Therefore, it can't be a global
immutable option.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32229>
The meaning is negated.
This NIR option is deprecated and shouldn't be used. It means any IO
optimizations can be disabled and it's a currently a workaround for zink,
which is the only driver that asks for it by default. The original option
is replaced by an environment variable for the GLSL linker.
Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32173>
If we have NIR such as:
32x4 %48 = @load_vulkan_descriptor (%47) (desc_type=SSBO)
32x4 %76 = deref_cast (tint_symbol_11 *)%48 (ssbo tint_symbol_11) (ptr_stride=0, align_mul=4, align_offset=0)
32x4 %77 = deref_struct &%76->tint_symbol_10 (ssbo int) // &((tint_symbol_11 *)%48)->tint_symbol_10
A single nir_rematerialize_deref_in_use_blocks() will rematerialize the
deref_struct and then it's deref_cast. However,
nir_foreach_instr_reverse_safe is not safe if the next iteration's
instruction is removed. This can result in the instruction loop exiting
and the load_vulkan_descriptor never having an LCSSA phi.
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes: 439e8c42cc ("nir/lcssa: Fix rematerializing derefs")
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11770
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32225>
iabs(a) is not positive if "a" is the minimum signed value, so this is
incorrect in that case for some values of "b".
Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Fixes: 2b76de9b5d ("nir/algebraic: Add a couple optimizations for iabs and ishr")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32157>
