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gallium: Remove now-unused shader caps.

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The only interesting ones here were LOWER_IF_THRESHOLD (which previously
had connected to some lowering in GLSL that was broken in the face of side
effects), and FMA (which turned GLSL IR's fma() into TGSI_OPCODE_FMA
instead of MAD).

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8044>
This commit is contained in:
Emma Anholt
2022-03-28 15:37:33 -07:00
committed by Marge Bot
parent 9617184bc2
commit e9b491f9b5
25 changed files with 1 additions and 113 deletions
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docs/gallium/screen.rst
-13
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@@ -552,10 +552,6 @@ The integer capabilities:
* ``PIPE_CAP_COMPUTE_GRID_INFO_LAST_BLOCK``: Whether pipe_grid_info::last_block
is implemented by the driver. See struct pipe_grid_info for more details.
* ``PIPE_CAP_COMPUTE_SHADER_DERIVATIVE``: True if the driver supports derivatives (and texture lookups with implicit derivatives) in compute shaders.
* ``PIPE_CAP_TGSI_SKIP_SHRINK_IO_ARRAYS``: Whether the TGSI pass to shrink IO
arrays should be skipped and enforce keeping the declared array sizes instead.
A driver might rely on the input mapping that was defined with the original
GLSL code.
* ``PIPE_CAP_IMAGE_LOAD_FORMATTED``: True if a format for image loads does not need to be specified in the shader IR
* ``PIPE_CAP_IMAGE_STORE_FORMATTED``: True if a format for image stores does not need to be specified in the shader IR
* ``PIPE_CAP_THROTTLE``: Whether or not gallium frontends should throttle pipe_context
@@ -740,8 +736,6 @@ MOV OUT[0], CONST[0][3] # copy vector 3 of constbuf 0
* ``PIPE_SHADER_CAP_DFRACEXP_DLDEXP_SUPPORTED``: Whether DFRACEXP and
DLDEXP are supported.
* ``PIPE_SHADER_CAP_LDEXP_SUPPORTED``: Whether LDEXP is supported.
* ``PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED``: Whether FMA and DFMA (doubles only)
are supported.
* ``PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE``: Whether the driver doesn't
ignore tgsi_declaration_range::Last for shader inputs and outputs.
* ``PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT``: This is the maximum number
@@ -755,13 +749,6 @@ MOV OUT[0], CONST[0][3] # copy vector 3 of constbuf 0
* ``PIPE_SHADER_CAP_SUPPORTED_IRS``: Supported representations of the
program. It should be a mask of ``pipe_shader_ir`` bits.
* ``PIPE_SHADER_CAP_MAX_SHADER_IMAGES``: Maximum number of image units.
* ``PIPE_SHADER_CAP_LOWER_IF_THRESHOLD``: IF and ELSE branches with a lower
cost than this value should be lowered by gallium frontends for better
performance. This is a tunable for the GLSL compiler and the behavior is
specific to the compiler.
* ``PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS``: Whether the merge registers
TGSI pass is skipped. This might reduce code size and register pressure if
the underlying driver has a real backend compiler.
* ``PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS``: If atomic counters are separate,
how many HW counters are available for this stage. (0 uses SSBO atomics).
* ``PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS``: If atomic counters are