[Mesa-dev] [PATCH v0] nir: mako all the intrinsics
Jason Ekstrand
jason at jlekstrand.net
Fri Mar 16 16:42:35 UTC 2018
On Fri, Mar 16, 2018 at 5:41 AM, Rob Clark <robdclark at gmail.com> wrote:
> Ok, I came up with:
>
> https://hastebin.com/bulilojupo.cpp
>
> if you want to double check my methodology.
>
> It spotted a couple small mistakes, which I've fixed up locally. Will
> resend once I finish autotools build support.. hmm, and I guess there
> is scons too.. *sigh*
>
> Fwiw, one if the bugs was from this confusion about num_indices:
>
> /* src[] = { vertex, offset }. const_index[] = { base, component } */
> LOAD(per_vertex_output, 2, 1, BASE, COMPONENT, xx,
> NIR_INTRINSIC_CAN_ELIMINATE)
>
> ;-)
>
> I *guess* I should assume the original code was correct, and change this
> to:
>
> # src[] = { vertex, offset }. const_index[] = { base }
> load("per_vertex_output", 2, [BASE], [CAN_ELIMINATE])
>
It looks like we set component in nir_lower_io so we should probably keep
it. Probably best to have a patch before this one which fixes
nir_intrinsics.h. :-/
> ?
>
> BR,
> -R
>
>
> On Fri, Mar 16, 2018 at 7:08 AM, Rob Clark <robdclark at gmail.com> wrote:
> > I haven't done anything to verify yet, but I was thinking along the
> > same lines of just hacking up a .c program to compare both sets of
> > tables. There are enough intrinsics, that somewhere I probably
> > transcribed one wrong and visual inspection of the tables doesn't seem
> > sane ;-)
> >
> > BR,
> > -R
> >
> > On Fri, Mar 16, 2018 at 1:27 AM, Jason Ekstrand <jason at jlekstrand.net>
> wrote:
> >> I think I like this in principal. One question would be what have you
> done
> >> to verify everything is the same? When I've done things like this in
> the
> >> past, I've written a bit of C code to compare all the info struct to
> ensure
> >> that the two generate the same thing.
> >>
> >>
> >>
> >> On March 15, 2018 18:43:59 Rob Clark <robdclark at gmail.com> wrote:
> >>
> >>> I threatened to do this a long time ago.. I probably *should* have done
> >>> it a long time ago when there where many fewer intrinsics. But the
> >>> system of macro/#include magic for dealing with intrinsics is a bit
> >>> annoying, and python has the nice property of optional fxn params,
> >>> making it possible to define new intrinsics while ignoring parameters
> >>> that are not applicable (and naming optional params). And not having
> to
> >>> specify various array lengths explicitly is nice too.
> >>>
> >>> I think the end result makes it easier to add new intrinsics.
> >>> ---
> >>> I still need to update autotools build.. but it's late and my wrist
> >>> needs a break so I thought I'd send it out as-is to solicit comments
> >>> on the py bits, etc
> >>>
> >>> src/compiler/nir/meson.build | 22 +-
> >>> src/compiler/nir/nir.h | 9 -
> >>> src/compiler/nir/nir_builder.h | 27 +-
> >>> src/compiler/nir/nir_builder_opcodes_h.py | 24 +-
> >>> src/compiler/nir/nir_intrinsics.h | 540
> >>> --------------------
> >>> src/compiler/nir/nir_intrinsics.py | 547
> >>> +++++++++++++++++++++
> >>> .../nir/{nir_intrinsics.c => nir_intrinsics_c.py} | 56 +--
> >>> src/compiler/nir/nir_intrinsics_h.py | 44 ++
> >>> 8 files changed, 659 insertions(+), 610 deletions(-)
> >>> delete mode 100644 src/compiler/nir/nir_intrinsics.h
> >>> create mode 100644 src/compiler/nir/nir_intrinsics.py
> >>> rename src/compiler/nir/{nir_intrinsics.c => nir_intrinsics_c.py}
> (59%)
> >>> create mode 100644 src/compiler/nir/nir_intrinsics_h.py
> >>>
> >>> diff --git a/src/compiler/nir/meson.build
> b/src/compiler/nir/meson.build
> >>> index a70c236b958..ca9237e2ba3 100644
> >>> --- a/src/compiler/nir/meson.build
> >>> +++ b/src/compiler/nir/meson.build
> >>> @@ -65,6 +65,24 @@ nir_opt_algebraic_c = custom_target(
> >>> depend_files : files('nir_algebraic.py'),
> >>> )
> >>>
> >>> +nir_intrinsics_h = custom_target(
> >>> + 'nir_intrinsics.h',
> >>> + input : 'nir_intrinsics_h.py',
> >>> + output : 'nir_intrinsics.h',
> >>> + command : [prog_python2, '@INPUT@'],
> >>> + capture : true,
> >>> + depend_files : files('nir_intrinsics.py'),
> >>> +)
> >>> +
> >>> +nir_intrinsics_c = custom_target(
> >>> + 'nir_intrinsic.c',
> >>> + input : 'nir_intrinsics_c.py',
> >>> + output : 'nir_intrinsics.c',
> >>> + command : [prog_python2, '@INPUT@'],
> >>> + capture: true,
> >>> + depend_files : files('nir_intrinsics.py'),
> >>> +)
> >>> +
> >>> spirv_info_c = custom_target(
> >>> 'spirv_info.c',
> >>> input : files('../spirv/spirv_info_c.py',
> >>> '../spirv/spirv.core.grammar.json'),
> >>> @@ -96,8 +114,6 @@ files_libnir = files(
> >>> 'nir_inline_functions.c',
> >>> 'nir_instr_set.c',
> >>> 'nir_instr_set.h',
> >>> - 'nir_intrinsics.c',
> >>> - 'nir_intrinsics.h',
> >>> 'nir_linking_helpers.c',
> >>> 'nir_liveness.c',
> >>> 'nir_loop_analyze.c',
> >>> @@ -201,7 +217,7 @@ libnir = static_library(
> >>> 'nir',
> >>> [files_libnir, spirv_info_c, nir_opt_algebraic_c, nir_opcodes_c,
> >>> nir_opcodes_h, nir_constant_expressions_c, nir_builder_opcodes_h,
> >>> - vtn_gather_types_c],
> >>> + vtn_gather_types_c, nir_intrinsics_c, nir_intrinsics_h],
> >>> include_directories : [inc_common, inc_compiler,
> >>> include_directories('../spirv')],
> >>> c_args : [c_vis_args, c_msvc_compat_args, no_override_init_args],
> >>> link_with : libcompiler,
> >>> diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
> >>> index 1e2ab459bd6..9bcd24a1305 100644
> >>> --- a/src/compiler/nir/nir.h
> >>> +++ b/src/compiler/nir/nir.h
> >>> @@ -945,16 +945,7 @@ typedef struct {
> >>> struct nir_function *callee;
> >>> } nir_call_instr;
> >>>
> >>> -#define INTRINSIC(name, num_srcs, src_components, has_dest,
> >>> dest_components, \
> >>> - num_variables, num_indices, idx0, idx1, idx2,
> flags) \
> >>> - nir_intrinsic_##name,
> >>> -
> >>> -#define LAST_INTRINSIC(name) nir_last_intrinsic =
> nir_intrinsic_##name,
> >>> -
> >>> -typedef enum {
> >>> #include "nir_intrinsics.h"
> >>> - nir_num_intrinsics = nir_last_intrinsic + 1
> >>> -} nir_intrinsic_op;
> >>>
> >>> #define NIR_INTRINSIC_MAX_CONST_INDEX 3
> >>>
> >>> diff --git a/src/compiler/nir/nir_builder.h
> >>> b/src/compiler/nir/nir_builder.h
> >>> index 36e0ae3ac63..8f7ddf1483c 100644
> >>> --- a/src/compiler/nir/nir_builder.h
> >>> +++ b/src/compiler/nir/nir_builder.h
> >>> @@ -610,32 +610,7 @@ nir_copy_var(nir_builder *build, nir_variable
> *dest,
> >>> nir_variable *src)
> >>> nir_builder_instr_insert(build, ©->instr);
> >>> }
> >>>
> >>> -/* Generic builder for system values. */
> >>> -static inline nir_ssa_def *
> >>> -nir_load_system_value(nir_builder *build, nir_intrinsic_op op, int
> index)
> >>> -{
> >>> - nir_intrinsic_instr *load = nir_intrinsic_instr_create(
> build->shader,
> >>> op);
> >>> - load->num_components = nir_intrinsic_infos[op].dest_components;
> >>> - load->const_index[0] = index;
> >>> - nir_ssa_dest_init(&load->instr, &load->dest,
> >>> - nir_intrinsic_infos[op].dest_components, 32,
> NULL);
> >>> - nir_builder_instr_insert(build, &load->instr);
> >>> - return &load->dest.ssa;
> >>> -}
> >>> -
> >>> -/* Generate custom builders for system values. */
> >>> -#define INTRINSIC(name, num_srcs, src_components, has_dest,
> >>> dest_components, \
> >>> - num_variables, num_indices, idx0, idx1, idx2, flags)
> >>> -#define LAST_INTRINSIC(name)
> >>> -
> >>> -#define DEFINE_SYSTEM_VALUE(name)
> >>> \
> >>> - static inline nir_ssa_def *
> >>> \
> >>> - nir_load_##name(nir_builder *build)
> >>> \
> >>> - {
> >>> \
> >>> - return nir_load_system_value(build, nir_intrinsic_load_##name,
> 0);
> >>> \
> >>> - }
> >>> -
> >>> -#include "nir_intrinsics.h"
> >>> +#include "nir_builder_opcodes.h"
> >>>
> >>> static inline nir_ssa_def *
> >>> nir_load_barycentric(nir_builder *build, nir_intrinsic_op op,
> >>> diff --git a/src/compiler/nir/nir_builder_opcodes_h.py
> >>> b/src/compiler/nir/nir_builder_opcodes_h.py
> >>> index bdabe578ce2..590e471a8cd 100644
> >>> --- a/src/compiler/nir/nir_builder_opcodes_h.py
> >>> +++ b/src/compiler/nir/nir_builder_opcodes_h.py
> >>> @@ -41,9 +41,31 @@ nir_${name}(nir_builder *build,
> >>> ${src_decl_list(opcode.num_inputs)})
> >>> }
> >>> % endfor
> >>>
> >>> +/* Generic builder for system values. */
> >>> +static inline nir_ssa_def *
> >>> +nir_load_system_value(nir_builder *build, nir_intrinsic_op op, int
> index)
> >>> +{
> >>> + nir_intrinsic_instr *load = nir_intrinsic_instr_create(
> build->shader,
> >>> op);
> >>> + load->num_components = nir_intrinsic_infos[op].dest_components;
> >>> + load->const_index[0] = index;
> >>> + nir_ssa_dest_init(&load->instr, &load->dest,
> >>> + nir_intrinsic_infos[op].dest_components, 32,
> NULL);
> >>> + nir_builder_instr_insert(build, &load->instr);
> >>> + return &load->dest.ssa;
> >>> +}
> >>> +
> >>> +% for name in sorted(system_values.iterkeys()):
> >>> +static inline nir_ssa_def *
> >>> +nir_load_${name}(nir_builder *build)
> >>> +{
> >>> + return nir_load_system_value(build, nir_intrinsic_load_${name}, 0);
> >>> +}
> >>> +% endfor
> >>> +
> >>> #endif /* _NIR_BUILDER_OPCODES_ */"""
> >>>
> >>> from nir_opcodes import opcodes
> >>> +from nir_intrinsics import system_values
> >>> from mako.template import Template
> >>>
> >>> -print Template(template).render(opcodes=opcodes)
> >>> +print Template(template).render(opcodes=opcodes,
> >>> system_values=system_values)
> >>> diff --git a/src/compiler/nir/nir_intrinsics.h
> >>> b/src/compiler/nir/nir_intrinsics.h
> >>> deleted file mode 100644
> >>> index 7b737559d5a..00000000000
> >>> --- a/src/compiler/nir/nir_intrinsics.h
> >>> +++ /dev/null
> >>> @@ -1,540 +0,0 @@
> >>> -/*
> >>> - * Copyright © 2014 Intel Corporation
> >>> - *
> >>> - * Permission is hereby granted, free of charge, to any person
> obtaining
> >>> a
> >>> - * copy of this software and associated documentation files (the
> >>> "Software"),
> >>> - * to deal in the Software without restriction, including without
> >>> limitation
> >>> - * the rights to use, copy, modify, merge, publish, distribute,
> >>> sublicense,
> >>> - * and/or sell copies of the Software, and to permit persons to whom
> the
> >>> - * Software is furnished to do so, subject to the following
> conditions:
> >>> - *
> >>> - * The above copyright notice and this permission notice (including
> the
> >>> next
> >>> - * paragraph) shall be included in all copies or substantial portions
> of
> >>> the
> >>> - * Software.
> >>> - *
> >>> - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> >>> EXPRESS OR
> >>> - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> >>> MERCHANTABILITY,
> >>> - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
> >>> SHALL
> >>> - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
> OR
> >>> OTHER
> >>> - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> >>> ARISING
> >>> - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> >>> DEALINGS
> >>> - * IN THE SOFTWARE.
> >>> - *
> >>> - * Authors:
> >>> - * Connor Abbott (cwabbott0 at gmail.com)
> >>> - *
> >>> - */
> >>> -
> >>> -/**
> >>> - * This header file defines all the available intrinsics in one
> place. It
> >>> - * expands to a list of macros of the form:
> >>> - *
> >>> - * INTRINSIC(name, num_srcs, src_components, has_dest,
> dest_components,
> >>> - * num_variables, num_indices, idx0, idx1, idx2, flags)
> >>> - *
> >>> - * Which should correspond one-to-one with the nir_intrinsic_info
> >>> structure. It
> >>> - * is included in both ir.h to create the nir_intrinsic enum (with
> >>> members of
> >>> - * the form nir_intrinsic_(name)) and and in opcodes.c to create
> >>> - * nir_intrinsic_infos, which is a const array of nir_intrinsic_info
> >>> structures
> >>> - * for each intrinsic.
> >>> - */
> >>> -
> >>> -#define ARR(...) { __VA_ARGS__ }
> >>> -
> >>> -INTRINSIC(nop, 0, ARR(0), false, 0, 0, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -INTRINSIC(load_var, 0, ARR(0), true, 0, 1, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(store_var, 1, ARR(0), false, 0, 1, 1, WRMASK, xx, xx, 0)
> >>> -INTRINSIC(copy_var, 0, ARR(0), false, 0, 2, 0, xx, xx, xx, 0)
> >>> -
> >>> -/*
> >>> - * Interpolation of input. The interp_var_at* intrinsics are similar
> to
> >>> the
> >>> - * load_var intrinsic acting on a shader input except that they
> >>> interpolate
> >>> - * the input differently. The at_sample and at_offset intrinsics
> take an
> >>> - * additional source that is an integer sample id or a vec2 position
> >>> offset
> >>> - * respectively.
> >>> - */
> >>> -
> >>> -INTRINSIC(interp_var_at_centroid, 0, ARR(0), true, 0, 1, 0, xx, xx,
> xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -INTRINSIC(interp_var_at_sample, 1, ARR(1), true, 0, 1, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -INTRINSIC(interp_var_at_offset, 1, ARR(2), true, 0, 1, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/*
> >>> - * Ask the driver for the size of a given buffer. It takes the buffer
> >>> index
> >>> - * as source.
> >>> - */
> >>> -INTRINSIC(get_buffer_size, 1, ARR(1), true, 1, 0, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/*
> >>> - * a barrier is an intrinsic with no inputs/outputs but which can't be
> >>> moved
> >>> - * around/optimized in general
> >>> - */
> >>> -#define BARRIER(name) INTRINSIC(name, 0, ARR(0), false, 0, 0, 0, xx,
> xx,
> >>> xx, 0)
> >>> -
> >>> -BARRIER(barrier)
> >>> -BARRIER(discard)
> >>> -
> >>> -/*
> >>> - * Memory barrier with semantics analogous to the memoryBarrier() GLSL
> >>> - * intrinsic.
> >>> - */
> >>> -BARRIER(memory_barrier)
> >>> -
> >>> -/*
> >>> - * Shader clock intrinsic with semantics analogous to the
> clock2x32ARB()
> >>> - * GLSL intrinsic.
> >>> - * The latter can be used as code motion barrier, which is currently
> not
> >>> - * feasible with NIR.
> >>> - */
> >>> -INTRINSIC(shader_clock, 0, ARR(0), true, 2, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/*
> >>> - * Shader ballot intrinsics with semantics analogous to the
> >>> - *
> >>> - * ballotARB()
> >>> - * readInvocationARB()
> >>> - * readFirstInvocationARB()
> >>> - *
> >>> - * GLSL functions from ARB_shader_ballot.
> >>> - */
> >>> -INTRINSIC(ballot, 1, ARR(1), true, 0, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(read_invocation, 2, ARR(0, 1), true, 0, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(read_first_invocation, 1, ARR(0), true, 0, 0, 0, xx, xx,
> xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/** Additional SPIR-V ballot intrinsics
> >>> - *
> >>> - * These correspond to the SPIR-V opcodes
> >>> - *
> >>> - * OpGroupUniformElect
> >>> - * OpSubgroupFirstInvocationKHR
> >>> - */
> >>> -INTRINSIC(elect, 0, ARR(0), true, 1, 0, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(first_invocation, 0, ARR(0), true, 1, 0, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/*
> >>> - * Memory barrier with semantics analogous to the compute shader
> >>> - * groupMemoryBarrier(), memoryBarrierAtomicCounter(),
> >>> memoryBarrierBuffer(),
> >>> - * memoryBarrierImage() and memoryBarrierShared() GLSL intrinsics.
> >>> - */
> >>> -BARRIER(group_memory_barrier)
> >>> -BARRIER(memory_barrier_atomic_counter)
> >>> -BARRIER(memory_barrier_buffer)
> >>> -BARRIER(memory_barrier_image)
> >>> -BARRIER(memory_barrier_shared)
> >>> -
> >>> -/** A conditional discard, with a single boolean source. */
> >>> -INTRINSIC(discard_if, 1, ARR(1), false, 0, 0, 0, xx, xx, xx, 0)
> >>> -
> >>> -/** ARB_shader_group_vote intrinsics */
> >>> -INTRINSIC(vote_any, 1, ARR(1), true, 1, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(vote_all, 1, ARR(1), true, 1, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(vote_feq, 1, ARR(0), true, 1, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(vote_ieq, 1, ARR(0), true, 1, 0, 0, xx, xx, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/** Ballot ALU operations from SPIR-V.
> >>> - *
> >>> - * These operations work like their ALU counterparts except that the
> >>> operate
> >>> - * on a uvec4 which is treated as a 128bit integer. Also, they are,
> in
> >>> - * general, free to ignore any bits which are above the subgroup size.
> >>> - */
> >>> -INTRINSIC(ballot_bitfield_extract, 2, ARR(4, 1), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(ballot_bit_count_reduce, 1, ARR(4), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(ballot_bit_count_inclusive, 1, ARR(4), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(ballot_bit_count_exclusive, 1, ARR(4), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(ballot_find_lsb, 1, ARR(4), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(ballot_find_msb, 1, ARR(4), true, 1, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/** Shuffle operations from SPIR-V. */
> >>> -INTRINSIC(shuffle, 2, ARR(0, 1), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(shuffle_xor, 2, ARR(0, 1), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(shuffle_up, 2, ARR(0, 1), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(shuffle_down, 2, ARR(0, 1), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/** Quad operations from SPIR-V. */
> >>> -INTRINSIC(quad_broadcast, 2, ARR(0, 1), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(quad_swap_horizontal, 1, ARR(0), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(quad_swap_vertical, 1, ARR(0), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(quad_swap_diagonal, 1, ARR(0), true, 0, 0,
> >>> - 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -INTRINSIC(reduce, 1, ARR(0), true, 0, 0,
> >>> - 2, REDUCTION_OP, CLUSTER_SIZE, xx,
> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(inclusive_scan, 1, ARR(0), true, 0, 0,
> >>> - 1, REDUCTION_OP, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(exclusive_scan, 1, ARR(0), true, 0, 0,
> >>> - 1, REDUCTION_OP, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -
> >>> -/**
> >>> - * Basic Geometry Shader intrinsics.
> >>> - *
> >>> - * emit_vertex implements GLSL's EmitStreamVertex() built-in. It
> takes a
> >>> single
> >>> - * index, which is the stream ID to write to.
> >>> - *
> >>> - * end_primitive implements GLSL's EndPrimitive() built-in.
> >>> - */
> >>> -INTRINSIC(emit_vertex, 0, ARR(0), false, 0, 0, 1, STREAM_ID, xx,
> xx, 0)
> >>> -INTRINSIC(end_primitive, 0, ARR(0), false, 0, 0, 1, STREAM_ID, xx,
> xx, 0)
> >>> -
> >>> -/**
> >>> - * Geometry Shader intrinsics with a vertex count.
> >>> - *
> >>> - * Alternatively, drivers may implement these intrinsics, and use
> >>> - * nir_lower_gs_intrinsics() to convert from the basic intrinsics.
> >>> - *
> >>> - * These maintain a count of the number of vertices emitted, as an
> >>> additional
> >>> - * unsigned integer source.
> >>> - */
> >>> -INTRINSIC(emit_vertex_with_counter, 1, ARR(1), false, 0, 0, 1,
> STREAM_ID,
> >>> xx, xx, 0)
> >>> -INTRINSIC(end_primitive_with_counter, 1, ARR(1), false, 0, 0, 1,
> >>> STREAM_ID, xx, xx, 0)
> >>> -INTRINSIC(set_vertex_count, 1, ARR(1), false, 0, 0, 0, xx, xx, xx, 0)
> >>> -
> >>> -/*
> >>> - * Atomic counters
> >>> - *
> >>> - * The *_var variants take an atomic_uint nir_variable, while the
> other,
> >>> - * lowered, variants take a constant buffer index and register offset.
> >>> - */
> >>> -
> >>> -#define ATOMIC(name, flags) \
> >>> - INTRINSIC(name##_var, 0, ARR(0), true, 1, 1, 0, xx, xx, xx, flags)
> \
> >>> - INTRINSIC(name, 1, ARR(1), true, 1, 0, 1, BASE, xx, xx, flags)
> >>> -#define ATOMIC2(name) \
> >>> - INTRINSIC(name##_var, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0) \
> >>> - INTRINSIC(name, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx, xx, 0)
> >>> -#define ATOMIC3(name) \
> >>> - INTRINSIC(name##_var, 2, ARR(1, 1), true, 1, 1, 0, xx, xx, xx, 0) \
> >>> - INTRINSIC(name, 3, ARR(1, 1, 1), true, 1, 0, 1, BASE, xx, xx, 0)
> >>> -
> >>> -ATOMIC(atomic_counter_inc, 0)
> >>> -ATOMIC(atomic_counter_dec, 0)
> >>> -ATOMIC(atomic_counter_read, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -ATOMIC2(atomic_counter_add)
> >>> -ATOMIC2(atomic_counter_min)
> >>> -ATOMIC2(atomic_counter_max)
> >>> -ATOMIC2(atomic_counter_and)
> >>> -ATOMIC2(atomic_counter_or)
> >>> -ATOMIC2(atomic_counter_xor)
> >>> -ATOMIC2(atomic_counter_exchange)
> >>> -ATOMIC3(atomic_counter_comp_swap)
> >>> -
> >>> -/*
> >>> - * Image load, store and atomic intrinsics.
> >>> - *
> >>> - * All image intrinsics take an image target passed as a nir_variable.
> >>> Image
> >>> - * variables contain a number of memory and layout qualifiers that
> >>> influence
> >>> - * the semantics of the intrinsic.
> >>> - *
> >>> - * All image intrinsics take a four-coordinate vector and a sample
> index
> >>> as
> >>> - * first two sources, determining the location within the image that
> will
> >>> be
> >>> - * accessed by the intrinsic. Components not applicable to the image
> >>> target
> >>> - * in use are undefined. Image store takes an additional
> four-component
> >>> - * argument with the value to be written, and image atomic operations
> >>> take
> >>> - * either one or two additional scalar arguments with the same
> meaning as
> >>> in
> >>> - * the ARB_shader_image_load_store specification.
> >>> - */
> >>> -INTRINSIC(image_load, 2, ARR(4, 1), true, 4, 1, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -INTRINSIC(image_store, 3, ARR(4, 1, 4), false, 0, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(image_atomic_add, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(image_atomic_min, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(image_atomic_max, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(image_atomic_and, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(image_atomic_or, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx, 0)
> >>> -INTRINSIC(image_atomic_xor, 3, ARR(4, 1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(image_atomic_exchange, 3, ARR(4, 1, 1), true, 1, 1, 0, xx,
> xx,
> >>> xx, 0)
> >>> -INTRINSIC(image_atomic_comp_swap, 4, ARR(4, 1, 1, 1), true, 1, 1, 0,
> xx,
> >>> xx, xx, 0)
> >>> -INTRINSIC(image_size, 0, ARR(0), true, 0, 1, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -INTRINSIC(image_samples, 0, ARR(0), true, 1, 1, 0, xx, xx, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/*
> >>> - * Vulkan descriptor set intrinsics
> >>> - *
> >>> - * The Vulkan API uses a different binding model from GL. In the
> Vulkan
> >>> - * API, all external resources are represented by a tuple:
> >>> - *
> >>> - * (descriptor set, binding, array index)
> >>> - *
> >>> - * where the array index is the only thing allowed to be indirect.
> The
> >>> - * vulkan_surface_index intrinsic takes the descriptor set and
> binding as
> >>> - * its first two indices and the array index as its source. The third
> >>> - * index is a nir_variable_mode in case that's useful to the backend.
> >>> - *
> >>> - * The intended usage is that the shader will call
> vulkan_surface_index
> >>> to
> >>> - * get an index and then pass that as the buffer index ubo/ssbo calls.
> >>> - *
> >>> - * The vulkan_resource_reindex intrinsic takes a resource index in
> src0
> >>> - * (the result of a vulkan_resource_index or vulkan_resource_reindex)
> >>> which
> >>> - * corresponds to the tuple (set, binding, index) and computes an
> index
> >>> - * corresponding to tuple (set, binding, idx + src1).
> >>> - */
> >>> -INTRINSIC(vulkan_resource_index, 1, ARR(1), true, 1, 0, 2,
> >>> - DESC_SET, BINDING, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -INTRINSIC(vulkan_resource_reindex, 2, ARR(1, 1), true, 1, 0, 0, xx,
> xx,
> >>> xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/*
> >>> - * variable atomic intrinsics
> >>> - *
> >>> - * All of these variable atomic memory operations read a value from
> >>> memory,
> >>> - * compute a new value using one of the operations below, write the
> new
> >>> value
> >>> - * to memory, and return the original value read.
> >>> - *
> >>> - * All operations take 1 source except CompSwap that takes 2. These
> >>> sources
> >>> - * represent:
> >>> - *
> >>> - * 0: The data parameter to the atomic function (i.e. the value to add
> >>> - * in shared_atomic_add, etc).
> >>> - * 1: For CompSwap only: the second data parameter.
> >>> - *
> >>> - * All operations take 1 variable deref.
> >>> - */
> >>> -INTRINSIC(var_atomic_add, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_imin, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_umin, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_imax, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_umax, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_and, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_or, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_xor, 1, ARR(1), true, 1, 1, 0, xx, xx, xx, 0)
> >>> -INTRINSIC(var_atomic_exchange, 1, ARR(1), true, 1, 1, 0, xx, xx, xx,
> 0)
> >>> -INTRINSIC(var_atomic_comp_swap, 2, ARR(1, 1), true, 1, 1, 0, xx, xx,
> xx,
> >>> 0)
> >>> -
> >>> -/*
> >>> - * SSBO atomic intrinsics
> >>> - *
> >>> - * All of the SSBO atomic memory operations read a value from memory,
> >>> - * compute a new value using one of the operations below, write the
> new
> >>> - * value to memory, and return the original value read.
> >>> - *
> >>> - * All operations take 3 sources except CompSwap that takes 4. These
> >>> - * sources represent:
> >>> - *
> >>> - * 0: The SSBO buffer index.
> >>> - * 1: The offset into the SSBO buffer of the variable that the atomic
> >>> - * operation will operate on.
> >>> - * 2: The data parameter to the atomic function (i.e. the value to add
> >>> - * in ssbo_atomic_add, etc).
> >>> - * 3: For CompSwap only: the second data parameter.
> >>> - */
> >>> -INTRINSIC(ssbo_atomic_add, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx, 0)
> >>> -INTRINSIC(ssbo_atomic_imin, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(ssbo_atomic_umin, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(ssbo_atomic_imax, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(ssbo_atomic_umax, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(ssbo_atomic_and, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx, 0)
> >>> -INTRINSIC(ssbo_atomic_or, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx, xx,
> 0)
> >>> -INTRINSIC(ssbo_atomic_xor, 3, ARR(1, 1, 1), true, 1, 0, 0, xx, xx,
> xx, 0)
> >>> -INTRINSIC(ssbo_atomic_exchange, 3, ARR(1, 1, 1), true, 1, 0, 0, xx,
> xx,
> >>> xx, 0)
> >>> -INTRINSIC(ssbo_atomic_comp_swap, 4, ARR(1, 1, 1, 1), true, 1, 0, 0,
> xx,
> >>> xx, xx, 0)
> >>> -
> >>> -/*
> >>> - * CS shared variable atomic intrinsics
> >>> - *
> >>> - * All of the shared variable atomic memory operations read a value
> from
> >>> - * memory, compute a new value using one of the operations below,
> write
> >>> the
> >>> - * new value to memory, and return the original value read.
> >>> - *
> >>> - * All operations take 2 sources except CompSwap that takes 3. These
> >>> - * sources represent:
> >>> - *
> >>> - * 0: The offset into the shared variable storage region that the
> atomic
> >>> - * operation will operate on.
> >>> - * 1: The data parameter to the atomic function (i.e. the value to add
> >>> - * in shared_atomic_add, etc).
> >>> - * 2: For CompSwap only: the second data parameter.
> >>> - */
> >>> -INTRINSIC(shared_atomic_add, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_imin, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_umin, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_imax, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_umax, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_and, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_or, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx, 0)
> >>> -INTRINSIC(shared_atomic_xor, 2, ARR(1, 1), true, 1, 0, 1, BASE, xx,
> xx,
> >>> 0)
> >>> -INTRINSIC(shared_atomic_exchange, 2, ARR(1, 1), true, 1, 0, 1, BASE,
> xx,
> >>> xx, 0)
> >>> -INTRINSIC(shared_atomic_comp_swap, 3, ARR(1, 1, 1), true, 1, 0, 1,
> BASE,
> >>> xx, xx, 0)
> >>> -
> >>> -/* Used by nir_builder.h to generate loader helpers for the system
> >>> values. */
> >>> -#ifndef DEFINE_SYSTEM_VALUE
> >>> -#define DEFINE_SYSTEM_VALUE(name)
> >>> -#endif
> >>> -
> >>> -#define SYSTEM_VALUE(name, components, num_indices, idx0, idx1, idx2)
> \
> >>> - DEFINE_SYSTEM_VALUE(name) \
> >>> - INTRINSIC(load_##name, 0, ARR(0), true, components, 0,
> num_indices, \
> >>> - idx0, idx1, idx2, \
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -SYSTEM_VALUE(frag_coord, 4, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(front_face, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(vertex_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(vertex_id_zero_base, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(base_vertex, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(instance_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(base_instance, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(draw_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(sample_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(sample_pos, 2, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(sample_mask_in, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(primitive_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(invocation_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(tess_coord, 3, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(tess_level_outer, 4, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(tess_level_inner, 2, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(patch_vertices_in, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(local_invocation_id, 3, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(local_invocation_index, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(work_group_id, 3, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(user_clip_plane, 4, 1, UCP_ID, xx, xx)
> >>> -SYSTEM_VALUE(num_work_groups, 3, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(helper_invocation, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(alpha_ref_float, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(layer_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(view_index, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_size, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_invocation, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_eq_mask, 0, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_ge_mask, 0, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_gt_mask, 0, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_le_mask, 0, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_lt_mask, 0, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(num_subgroups, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(subgroup_id, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(local_group_size, 3, 0, xx, xx, xx)
> >>> -
> >>> -/* Blend constant color values. Float values are clamped. */
> >>> -SYSTEM_VALUE(blend_const_color_r_float, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(blend_const_color_g_float, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(blend_const_color_b_float, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(blend_const_color_a_float, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(blend_const_color_rgba8888_unorm, 1, 0, xx, xx, xx)
> >>> -SYSTEM_VALUE(blend_const_color_aaaa8888_unorm, 1, 0, xx, xx, xx)
> >>> -
> >>> -/**
> >>> - * Barycentric coordinate intrinsics.
> >>> - *
> >>> - * These set up the barycentric coordinates for a particular
> >>> interpolation.
> >>> - * The first three are for the simple cases: pixel, centroid, or
> >>> per-sample
> >>> - * (at gl_SampleID). The next two handle interpolating at a specified
> >>> - * sample location, or interpolating with a vec2 offset,
> >>> - *
> >>> - * The interp_mode index should be either the INTERP_MODE_SMOOTH or
> >>> - * INTERP_MODE_NOPERSPECTIVE enum values.
> >>> - *
> >>> - * The vec2 value produced by these intrinsics is intended for use as
> the
> >>> - * barycoord source of a load_interpolated_input intrinsic.
> >>> - */
> >>> -
> >>> -#define BARYCENTRIC(name, sources, source_components) \
> >>> - INTRINSIC(load_barycentric_##name, sources,
> ARR(source_components), \
> >>> - true, 2, 0, 1, INTERP_MODE, xx, xx, \
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/* no sources. const_index[] = { interp_mode } */
> >>> -BARYCENTRIC(pixel, 0, 0)
> >>> -BARYCENTRIC(centroid, 0, 0)
> >>> -BARYCENTRIC(sample, 0, 0)
> >>> -/* src[] = { sample_id }. const_index[] = { interp_mode } */
> >>> -BARYCENTRIC(at_sample, 1, 1)
> >>> -/* src[] = { offset.xy }. const_index[] = { interp_mode } */
> >>> -BARYCENTRIC(at_offset, 1, 2)
> >>> -
> >>> -/*
> >>> - * Load operations pull data from some piece of GPU memory. All load
> >>> - * operations operate in terms of offsets into some piece of
> theoretical
> >>> - * memory. Loads from externally visible memory (UBO and SSBO) simply
> >>> take a
> >>> - * byte offset as a source. Loads from opaque memory (uniforms,
> inputs,
> >>> etc.)
> >>> - * take a base+offset pair where the base (const_index[0]) gives the
> >>> location
> >>> - * of the start of the variable being loaded and and the offset
> source is
> >>> a
> >>> - * offset into that variable.
> >>> - *
> >>> - * Uniform load operations have a second "range" index that specifies
> the
> >>> - * range (starting at base) of the data from which we are loading. If
> >>> - * const_index[1] == 0, then the range is unknown.
> >>> - *
> >>> - * Some load operations such as UBO/SSBO load and per_vertex loads
> take
> >>> an
> >>> - * additional source to specify which UBO/SSBO/vertex to load from.
> >>> - *
> >>> - * The exact address type depends on the lowering pass that generates
> the
> >>> - * load/store intrinsics. Typically, this is vec4 units for things
> such
> >>> as
> >>> - * varying slots and float units for fragment shader inputs. UBO and
> >>> SSBO
> >>> - * offsets are always in bytes.
> >>> - */
> >>> -
> >>> -#define LOAD(name, srcs, num_indices, idx0, idx1, idx2, flags) \
> >>> - INTRINSIC(load_##name, srcs, ARR(1, 1, 1, 1), true, 0, 0,
> num_indices,
> >>> idx0, idx1, idx2, flags)
> >>> -
> >>> -/* src[] = { offset }. const_index[] = { base, range } */
> >>> -LOAD(uniform, 1, 2, BASE, RANGE, xx, NIR_INTRINSIC_CAN_ELIMINATE |
> >>> NIR_INTRINSIC_CAN_REORDER)
> >>> -/* src[] = { buffer_index, offset }. No const_index */
> >>> -LOAD(ubo, 2, 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE |
> >>> NIR_INTRINSIC_CAN_REORDER)
> >>> -/* src[] = { offset }. const_index[] = { base, component } */
> >>> -LOAD(input, 1, 2, BASE, COMPONENT, xx, NIR_INTRINSIC_CAN_ELIMINATE |
> >>> NIR_INTRINSIC_CAN_REORDER)
> >>> -/* src[] = { vertex, offset }. const_index[] = { base, component } */
> >>> -LOAD(per_vertex_input, 2, 2, BASE, COMPONENT, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -/* src[] = { barycoord, offset }. const_index[] = { base, component }
> */
> >>> -INTRINSIC(load_interpolated_input, 2, ARR(2, 1), true, 0, 0,
> >>> - 2, BASE, COMPONENT, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/* src[] = { buffer_index, offset }. No const_index */
> >>> -LOAD(ssbo, 2, 0, xx, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -/* src[] = { offset }. const_index[] = { base, component } */
> >>> -LOAD(output, 1, 2, BASE, COMPONENT, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -/* src[] = { vertex, offset }. const_index[] = { base, component } */
> >>> -LOAD(per_vertex_output, 2, 1, BASE, COMPONENT, xx,
> >>> NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -/* src[] = { offset }. const_index[] = { base } */
> >>> -LOAD(shared, 1, 1, BASE, xx, xx, NIR_INTRINSIC_CAN_ELIMINATE)
> >>> -/* src[] = { offset }. const_index[] = { base, range } */
> >>> -LOAD(push_constant, 1, 2, BASE, RANGE, xx,
> >>> - NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
> >>> -
> >>> -/*
> >>> - * Stores work the same way as loads, except now the first source is
> the
> >>> value
> >>> - * to store and the second (and possibly third) source specify where
> to
> >>> store
> >>> - * the value. SSBO and shared memory stores also have a write mask as
> >>> - * const_index[0].
> >>> - */
> >>> -
> >>> -#define STORE(name, srcs, num_indices, idx0, idx1, idx2, flags) \
> >>> - INTRINSIC(store_##name, srcs, ARR(0, 1, 1, 1), false, 0, 0,
> >>> num_indices, idx0, idx1, idx2, flags)
> >>> -
> >>> -/* src[] = { value, offset }. const_index[] = { base, write_mask,
> >>> component } */
> >>> -STORE(output, 2, 3, BASE, WRMASK, COMPONENT, 0)
> >>> -/* src[] = { value, vertex, offset }.
> >>> - * const_index[] = { base, write_mask, component }
> >>> - */
> >>> -STORE(per_vertex_output, 3, 3, BASE, WRMASK, COMPONENT, 0)
> >>> -/* src[] = { value, block_index, offset }. const_index[] = {
> write_mask }
> >>> */
> >>> -STORE(ssbo, 3, 1, WRMASK, xx, xx, 0)
> >>> -/* src[] = { value, offset }. const_index[] = { base, write_mask } */
> >>> -STORE(shared, 2, 2, BASE, WRMASK, xx, 0)
> >>> -
> >>> -LAST_INTRINSIC(store_shared)
> >>> -
> >>> -#undef DEFINE_SYSTEM_VALUE
> >>> -#undef INTRINSIC
> >>> -#undef LAST_INTRINSIC
> >>> diff --git a/src/compiler/nir/nir_intrinsics.py
> >>> b/src/compiler/nir/nir_intrinsics.py
> >>> new file mode 100644
> >>> index 00000000000..6bb6603586e
> >>> --- /dev/null
> >>> +++ b/src/compiler/nir/nir_intrinsics.py
> >>> @@ -0,0 +1,547 @@
> >>> +#
> >>> +# Copyright (C) 2018 Red Hat
> >>> +# Copyright (C) 2014 Intel Corporation
> >>> +#
> >>> +# Permission is hereby granted, free of charge, to any person
> obtaining a
> >>> +# copy of this software and associated documentation files (the
> >>> "Software"),
> >>> +# to deal in the Software without restriction, including without
> >>> limitation
> >>> +# the rights to use, copy, modify, merge, publish, distribute,
> >>> sublicense,
> >>> +# and/or sell copies of the Software, and to permit persons to whom
> the
> >>> +# Software is furnished to do so, subject to the following conditions:
> >>> +#
> >>> +# The above copyright notice and this permission notice (including the
> >>> next
> >>> +# paragraph) shall be included in all copies or substantial portions
> of
> >>> the
> >>> +# Software.
> >>> +#
> >>> +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> EXPRESS
> >>> OR
> >>> +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> >>> MERCHANTABILITY,
> >>> +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
> >>> SHALL
> >>> +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
> >>> OTHER
> >>> +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> ARISING
> >>> +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> >>> DEALINGS
> >>> +# IN THE SOFTWARE.
> >>> +#
> >>> +
> >>> +# This file defines all the available intrinsics in one place.
> >>> +#
> >>> +# The Intrinsic class corresponds one-to-one with nir_intrinsic_info
> >>> +# structure.
> >>> +
> >>> +class Intrinsic(object):
> >>> + """Class that represents all the information about an intrinsic
> >>> opcode.
> >>> + NOTE: this must be kept in sync with nir_intrinsic_info.
> >>> + """
> >>> + def __init__(self, name, src_components, dest_components,
> >>> num_variables,
> >>> + indices, flags):
> >>> + """Parameters:
> >>> +
> >>> + - name: the intrinsic name
> >>> + - src_components: list of the number of components per src, 0
> >>> means
> >>> + vectorized instruction with number of components given in the
> >>> + num_components field in nir_intrinsic_instr.
> >>> + - dest_components: number of destination components, -1 means
> no
> >>> + dest, 0 means number of components given in num_components
> field
> >>> + in nir_intrinsic_instr.
> >>> + - num_variables: the number of variables
> >>> + - indices: list of constant indicies
> >>> + - flags: list of semantic flags
> >>> + """
> >>> + assert isinstance(name, str)
> >>> + assert isinstance(src_components, list)
> >>> + if len(src_components) > 0:
> >>> + assert isinstance(src_components[0], int)
> >>> + assert isinstance(dest_components, int)
> >>> + assert isinstance(num_variables, int)
> >>> + assert isinstance(indices, list)
> >>> + if len(indices) > 0:
> >>> + assert isinstance(indices[0], str)
> >>> + assert isinstance(flags, list)
> >>> + if len(flags) > 0:
> >>> + assert isinstance(flags[0], str)
> >>> +
> >>> + self.name = name
> >>> + self.num_srcs = len(src_components)
> >>> + self.src_components = src_components
> >>> + self.has_dest = (dest_components >= 0)
> >>> + self.dest_components = dest_components
> >>> + self.num_variables = num_variables
> >>> + self.num_indices = len(indices)
> >>> + self.indices = indices
> >>> + self.flags = flags
> >>> +
> >>> +#
> >>> +# Possible indices:
> >>> +#
> >>> +
> >>> +# A constant 'base' value that is added to an offset src:
> >>> +BASE = "NIR_INTRINSIC_BASE"
> >>> +# For store instructions, a writemask:
> >>> +WRMASK = "NIR_INTRINSIC_WRMASK"
> >>> +# The stream-id for GS emit_vertex/end_primitive intrinsics:
> >>> +STREAM_ID = "NIR_INTRINSIC_STREAM_ID"
> >>> +# The clip-plane id for load_user_clip_plane intrinsics:
> >>> +UCP_ID = "NIR_INTRINSIC_UCP_ID"
> >>> +# The amount of data, starting from BASE, that this instruction
> >>> +# may access. This is used to provide bounds if the offset is
> >>> +# not constant.
> >>> +RANGE = "NIR_INTRINSIC_RANGE"
> >>> +# The vulkan descriptor set binding for vulkan_resource_index
> >>> +# intrinsic
> >>> +DESC_SET = "NIR_INTRINSIC_DESC_SET"
> >>> +# The vulkan descriptor set binding for vulkan_resource_index
> >>> +# intrinsic
> >>> +BINDING = "NIR_INTRINSIC_BINDING"
> >>> +# Component offset
> >>> +COMPONENT = "NIR_INTRINSIC_COMPONENT"
> >>> +# Interpolation mode (only meaningful for FS inputs)
> >>> +INTERP_MODE = "NIR_INTRINSIC_INTERP_MODE"
> >>> +# A binary nir_op to use when performing a reduction or scan operation
> >>> +REDUCTION_OP = "NIR_INTRINSIC_REDUCTION_OP"
> >>> +# Cluster size for reduction operations
> >>> +CLUSTER_SIZE = "NIR_INTRINSIC_CLUSTER_SIZE"
> >>> +
> >>> +#
> >>> +# Possible flags:
> >>> +#
> >>> +
> >>> +CAN_ELIMINATE = "NIR_INTRINSIC_CAN_ELIMINATE"
> >>> +CAN_REORDER = "NIR_INTRINSIC_CAN_REORDER"
> >>> +
> >>> +intr_opcodes = {}
> >>> +
> >>> +def intrinsic(name, src_comp=[], dest_comp=-1, num_vars=0, indices=[],
> >>> flags=[]):
> >>> + assert name not in intr_opcodes
> >>> + intr = Intrinsic(name, src_comp, dest_comp, num_vars, indices,
> flags)
> >>> + intr_opcodes[name] = intr
> >>> + return intr
> >>> +
> >>> +intrinsic("nop", flags=[CAN_ELIMINATE])
> >>> +
> >>> +intrinsic("load_var", dest_comp=0, num_vars=1, flags=[CAN_ELIMINATE])
> >>> +intrinsic("store_var", src_comp=[0], num_vars=1, indices=[WRMASK])
> >>> +intrinsic("copy_var", num_vars=2)
> >>> +
> >>> +# Interpolation of input. The interp_var_at* intrinsics are similar
> to
> >>> the
> >>> +# load_var intrinsic acting on a shader input except that they
> >>> interpolate
> >>> +# the input differently. The at_sample and at_offset intrinsics take
> an
> >>> +# additional source that is an integer sample id or a vec2 position
> >>> offset
> >>> +# respectively.
> >>> +
> >>> +intrinsic("interp_var_at_centroid", dest_comp=0, num_vars=1,
> >>> + flags=[ CAN_ELIMINATE, CAN_REORDER])
> >>> +intrinsic("interp_var_at_sample", src_comp=[1], dest_comp=0,
> >>> + flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> +intrinsic("interp_var_at_offset", src_comp=[2], dest_comp=0,
> num_vars=1,
> >>> + flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> +
> >>> +# Ask the driver for the size of a given buffer. It takes the buffer
> >>> index
> >>> +# as source.
> >>> +intrinsic("get_buffer_size", src_comp=[1], dest_comp=1,
> >>> + flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> +
> >>> +# a barrier is an intrinsic with no inputs/outputs but which can't be
> >>> moved
> >>> +# around/optimized in general
> >>> +def barrier(name):
> >>> + intrinsic(name)
> >>> +
> >>> +barrier("barrier")
> >>> +barrier("discard")
> >>> +
> >>> +# Memory barrier with semantics analogous to the memoryBarrier() GLSL
> >>> +# intrinsic.
> >>> +barrier("memory_barrier")
> >>> +
> >>> +# Shader clock intrinsic with semantics analogous to the
> clock2x32ARB()
> >>> +# GLSL intrinsic.
> >>> +# The latter can be used as code motion barrier, which is currently
> not
> >>> +# feasible with NIR.
> >>> +intrinsic("shader_clock", dest_comp=2, flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Shader ballot intrinsics with semantics analogous to the
> >>> +#
> >>> +# ballotARB()
> >>> +# readInvocationARB()
> >>> +# readFirstInvocationARB()
> >>> +#
> >>> +# GLSL functions from ARB_shader_ballot.
> >>> +intrinsic("ballot", src_comp=[1], dest_comp=0, flags=[CAN_ELIMINATE])
> >>> +intrinsic("read_invocation", src_comp=[0, 1], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("read_first_invocation", src_comp=[0], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Additional SPIR-V ballot intrinsics
> >>> +#
> >>> +# These correspond to the SPIR-V opcodes
> >>> +#
> >>> +# OpGroupUniformElect
> >>> +# OpSubgroupFirstInvocationKHR
> >>> +intrinsic("elect", dest_comp=1, flags=[CAN_ELIMINATE])
> >>> +intrinsic("first_invocation", dest_comp=1, flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Memory barrier with semantics analogous to the compute shader
> >>> +# groupMemoryBarrier(), memoryBarrierAtomicCounter(),
> >>> memoryBarrierBuffer(),
> >>> +# memoryBarrierImage() and memoryBarrierShared() GLSL intrinsics.
> >>> +barrier("group_memory_barrier")
> >>> +barrier("memory_barrier_atomic_counter")
> >>> +barrier("memory_barrier_buffer")
> >>> +barrier("memory_barrier_image")
> >>> +barrier("memory_barrier_shared")
> >>> +
> >>> +# A conditional discard, with a single boolean source.
> >>> +intrinsic("discard_if", src_comp=[1])
> >>> +
> >>> +# ARB_shader_group_vote intrinsics
> >>> +intrinsic("vote_any", src_comp=[1], dest_comp=1,
> flags=[CAN_ELIMINATE])
> >>> +intrinsic("vote_all", src_comp=[1], dest_comp=1,
> flags=[CAN_ELIMINATE])
> >>> +intrinsic("vote_feq", src_comp=[0], dest_comp=1,
> flags=[CAN_ELIMINATE])
> >>> +intrinsic("vote_ieq", src_comp=[0], dest_comp=1,
> flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Ballot ALU operations from SPIR-V.
> >>> +#
> >>> +# These operations work like their ALU counterparts except that the
> >>> operate
> >>> +# on a uvec4 which is treated as a 128bit integer. Also, they are, in
> >>> +# general, free to ignore any bits which are above the subgroup size.
> >>> +intrinsic("ballot_bitfield_extract", src_comp=[4, 1], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("ballot_bit_count_reduce", src_comp=[4], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("ballot_bit_count_inclusive", src_comp=[4], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("ballot_bit_count_exclusive", src_comp=[4], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("ballot_find_lsb", src_comp=[4], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("ballot_find_msb", src_comp=[4], dest_comp=1,
> >>> flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Shuffle operations from SPIR-V.
> >>> +intrinsic("shuffle", src_comp=[0, 1], dest_comp=0,
> flags=[CAN_ELIMINATE])
> >>> +intrinsic("shuffle_xor", src_comp=[0, 1], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("shuffle_up", src_comp=[0, 1], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("shuffle_down", src_comp=[0, 1], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Quad operations from SPIR-V.
> >>> +intrinsic("quad_broadcast", src_comp=[0, 1], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("quad_swap_horizontal", src_comp=[0], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("quad_swap_vertical", src_comp=[0], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +intrinsic("quad_swap_diagonal", src_comp=[0], dest_comp=0,
> >>> flags=[CAN_ELIMINATE])
> >>> +
> >>> +intrinsic("reduce", src_comp=[0], dest_comp=0, indices=[REDUCTION_OP,
> >>> CLUSTER_SIZE],
> >>> + flags=[CAN_ELIMINATE])
> >>> +intrinsic("inclusive_scan", src_comp=[0], dest_comp=0,
> >>> indices=[REDUCTION_OP],
> >>> + flags=[CAN_ELIMINATE])
> >>> +intrinsic("exclusive_scan", src_comp=[0], dest_comp=0,
> >>> indices=[REDUCTION_OP],
> >>> + flags=[CAN_ELIMINATE])
> >>> +
> >>> +# Basic Geometry Shader intrinsics.
> >>> +#
> >>> +# emit_vertex implements GLSL's EmitStreamVertex() built-in. It
> takes a
> >>> single
> >>> +# index, which is the stream ID to write to.
> >>> +#
> >>> +# end_primitive implements GLSL's EndPrimitive() built-in.
> >>> +intrinsic("emit_vertex", indices=[STREAM_ID])
> >>> +intrinsic("end_primitive", indices=[STREAM_ID])
> >>> +
> >>> +# Geometry Shader intrinsics with a vertex count.
> >>> +#
> >>> +# Alternatively, drivers may implement these intrinsics, and use
> >>> +# nir_lower_gs_intrinsics() to convert from the basic intrinsics.
> >>> +#
> >>> +# These maintain a count of the number of vertices emitted, as an
> >>> additional
> >>> +# unsigned integer source.
> >>> +intrinsic("emit_vertex_with_counter", src_comp=[1],
> indices=[STREAM_ID])
> >>> +intrinsic("end_primitive_with_counter", src_comp=[1],
> >>> indices=[STREAM_ID])
> >>> +intrinsic("set_vertex_count", src_comp=[1])
> >>> +
> >>> +# Atomic counters
> >>> +#
> >>> +# The *_var variants take an atomic_uint nir_variable, while the
> other,
> >>> +# lowered, variants take a constant buffer index and register offset.
> >>> +
> >>> +def atomic(name, flags=[]):
> >>> + intrinsic(name + "_var", dest_comp=1, num_vars=1, flags=flags)
> >>> + intrinsic(name, src_comp=[1], dest_comp=1, indices=[BASE],
> >>> flags=flags)
> >>> +
> >>> +def atomic2(name):
> >>> + intrinsic(name + "_var", src_comp=[1], dest_comp=1, num_vars=1)
> >>> + intrinsic(name, src_comp=[1, 1], dest_comp=1, indices=[BASE])
> >>> +
> >>> +def atomic3(name):
> >>> + intrinsic(name + "_var", src_comp=[1, 1], dest_comp=1, num_vars=1)
> >>> + intrinsic(name, src_comp=[1, 1, 1], dest_comp=1, indices=[BASE])
> >>> +
> >>> +atomic("atomic_counter_inc")
> >>> +atomic("atomic_counter_dec")
> >>> +atomic("atomic_counter_read", flags=[CAN_ELIMINATE])
> >>> +atomic2("atomic_counter_add")
> >>> +atomic2("atomic_counter_min")
> >>> +atomic2("atomic_counter_max")
> >>> +atomic2("atomic_counter_and")
> >>> +atomic2("atomic_counter_or")
> >>> +atomic2("atomic_counter_xor")
> >>> +atomic2("atomic_counter_exchange")
> >>> +atomic3("atomic_counter_comp_swap")
> >>> +
> >>> +# Image load, store and atomic intrinsics.
> >>> +#
> >>> +# All image intrinsics take an image target passed as a nir_variable.
> >>> Image
> >>> +# variables contain a number of memory and layout qualifiers that
> >>> influence
> >>> +# the semantics of the intrinsic.
> >>> +#
> >>> +# All image intrinsics take a four-coordinate vector and a sample
> index
> >>> as
> >>> +# first two sources, determining the location within the image that
> will
> >>> be
> >>> +# accessed by the intrinsic. Components not applicable to the image
> >>> target
> >>> +# in use are undefined. Image store takes an additional
> four-component
> >>> +# argument with the value to be written, and image atomic operations
> take
> >>> +# either one or two additional scalar arguments with the same meaning
> as
> >>> in
> >>> +# the ARB_shader_image_load_store specification.
> >>> +intrinsic("image_load", src_comp=[4, 1], dest_comp=4, num_vars=1,
> >>> + flags=[CAN_ELIMINATE])
> >>> +intrinsic("image_store", src_comp=[4, 1, 4], num_vars=1)
> >>> +intrinsic("image_atomic_add", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_min", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_max", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_and", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_or", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_xor", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_exchange", src_comp=[4, 1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_atomic_comp_swap", src_comp=[4, 1, 1, 1],
> dest_comp=1,
> >>> num_vars=1)
> >>> +intrinsic("image_size", dest_comp=0, num_vars=1,
> flags=[CAN_ELIMINATE,
> >>> CAN_REORDER])
> >>> +intrinsic("image_samples", dest_comp=1, num_vars=1,
> flags=[CAN_ELIMINATE,
> >>> CAN_REORDER])
> >>> +
> >>> +# Vulkan descriptor set intrinsics
> >>> +#
> >>> +# The Vulkan API uses a different binding model from GL. In the
> Vulkan
> >>> +# API, all external resources are represented by a tuple:
> >>> +#
> >>> +# (descriptor set, binding, array index)
> >>> +#
> >>> +# where the array index is the only thing allowed to be indirect. The
> >>> +# vulkan_surface_index intrinsic takes the descriptor set and binding
> as
> >>> +# its first two indices and the array index as its source. The third
> >>> +# index is a nir_variable_mode in case that's useful to the backend.
> >>> +#
> >>> +# The intended usage is that the shader will call
> vulkan_surface_index to
> >>> +# get an index and then pass that as the buffer index ubo/ssbo calls.
> >>> +#
> >>> +# The vulkan_resource_reindex intrinsic takes a resource index in src0
> >>> +# (the result of a vulkan_resource_index or vulkan_resource_reindex)
> >>> which
> >>> +# corresponds to the tuple (set, binding, index) and computes an index
> >>> +# corresponding to tuple (set, binding, idx + src1).
> >>> +intrinsic("vulkan_resource_index", src_comp=[1], dest_comp=1,
> >>> + indices=[DESC_SET, BINDING], flags=[CAN_ELIMINATE,
> >>> CAN_REORDER])
> >>> +intrinsic("vulkan_resource_reindex", src_comp=[1, 1], dest_comp=1,
> >>> + flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> +
> >>> +# variable atomic intrinsics
> >>> +#
> >>> +# All of these variable atomic memory operations read a value from
> >>> memory,
> >>> +# compute a new value using one of the operations below, write the new
> >>> value
> >>> +# to memory, and return the original value read.
> >>> +#
> >>> +# All operations take 1 source except CompSwap that takes 2. These
> >>> sources
> >>> +# represent:
> >>> +#
> >>> +# 0: The data parameter to the atomic function (i.e. the value to add
> >>> +# in shared_atomic_add, etc).
> >>> +# 1: For CompSwap only: the second data parameter.
> >>> +#
> >>> +# All operations take 1 variable deref.
> >>> +intrinsic("var_atomic_add", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_imin", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_umin", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_imax", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_umax", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_and", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_or", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_xor", src_comp=[1], dest_comp=1, num_vars=1)
> >>> +intrinsic("var_atomic_exchange", src_comp=[1], dest_comp=1,
> num_vars=1)
> >>> +intrinsic("var_atomic_comp_swap", src_comp=[1, 1], dest_comp=1,
> >>> num_vars=1)
> >>> +
> >>> +# SSBO atomic intrinsics
> >>> +#
> >>> +# All of the SSBO atomic memory operations read a value from memory,
> >>> +# compute a new value using one of the operations below, write the new
> >>> +# value to memory, and return the original value read.
> >>> +#
> >>> +# All operations take 3 sources except CompSwap that takes 4. These
> >>> +# sources represent:
> >>> +#
> >>> +# 0: The SSBO buffer index.
> >>> +# 1: The offset into the SSBO buffer of the variable that the atomic
> >>> +# operation will operate on.
> >>> +# 2: The data parameter to the atomic function (i.e. the value to add
> >>> +# in ssbo_atomic_add, etc).
> >>> +# 3: For CompSwap only: the second data parameter.
> >>> +intrinsic("ssbo_atomic_add", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_imin", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_umin", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_imax", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_umax", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_and", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_or", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_xor", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_exchange", src_comp=[1, 1, 1], dest_comp=1)
> >>> +intrinsic("ssbo_atomic_comp_swap", src_comp=[1, 1, 1, 1],
> dest_comp=1)
> >>> +
> >>> +# CS shared variable atomic intrinsics
> >>> +#
> >>> +# All of the shared variable atomic memory operations read a value
> from
> >>> +# memory, compute a new value using one of the operations below, write
> >>> the
> >>> +# new value to memory, and return the original value read.
> >>> +#
> >>> +# All operations take 2 sources except CompSwap that takes 3. These
> >>> +# sources represent:
> >>> +#
> >>> +# 0: The offset into the shared variable storage region that the
> atomic
> >>> +# operation will operate on.
> >>> +# 1: The data parameter to the atomic function (i.e. the value to add
> >>> +# in shared_atomic_add, etc).
> >>> +# 2: For CompSwap only: the second data parameter.
> >>> +intrinsic("shared_atomic_add", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_imin", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_umin", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_imax", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_umax", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_and", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_or", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_xor", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_exchange", src_comp=[1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +intrinsic("shared_atomic_comp_swap", src_comp=[1, 1, 1], dest_comp=1,
> >>> indices=[BASE])
> >>> +
> >>> +system_values = {}
> >>> +
> >>> +def system_value(name, dest_comp, indices=[]):
> >>> + assert name not in system_values
> >>> + intr = intrinsic("load_" + name, [], dest_comp, 0, indices,
> >>> + flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> + system_values[name] = intr
> >>> +
> >>> +system_value("frag_coord", 4)
> >>> +system_value("front_face", 1)
> >>> +system_value("vertex_id", 1)
> >>> +system_value("vertex_id_zero_base", 1)
> >>> +system_value("base_vertex", 1)
> >>> +system_value("instance_id", 1)
> >>> +system_value("base_instance", 1)
> >>> +system_value("draw_id", 1)
> >>> +system_value("sample_id", 1)
> >>> +system_value("sample_pos", 2)
> >>> +system_value("sample_mask_in", 1)
> >>> +system_value("primitive_id", 1)
> >>> +system_value("invocation_id", 1)
> >>> +system_value("tess_coord", 3)
> >>> +system_value("tess_level_outer", 4)
> >>> +system_value("tess_level_inner", 2)
> >>> +system_value("patch_vertices_in", 1)
> >>> +system_value("local_invocation_id", 3)
> >>> +system_value("local_invocation_index", 1)
> >>> +system_value("work_group_id", 3)
> >>> +system_value("user_clip_plane", 4, indices=[UCP_ID])
> >>> +system_value("num_work_groups", 3)
> >>> +system_value("helper_invocation", 1)
> >>> +system_value("alpha_ref_float", 1)
> >>> +system_value("layer_id", 1)
> >>> +system_value("view_index", 1)
> >>> +system_value("subgroup_size", 1)
> >>> +system_value("subgroup_invocation", 1)
> >>> +system_value("subgroup_eq_mask", 0)
> >>> +system_value("subgroup_ge_mask", 0)
> >>> +system_value("subgroup_gt_mask", 0)
> >>> +system_value("subgroup_le_mask", 0)
> >>> +system_value("subgroup_lt_mask", 0)
> >>> +system_value("num_subgroups", 1)
> >>> +system_value("subgroup_id", 1)
> >>> +system_value("local_group_size", 3)
> >>> +
> >>> +# Blend constant color values. Float values are clamped.#
> >>> +system_value("blend_const_color_r_float", 1)
> >>> +system_value("blend_const_color_g_float", 1)
> >>> +system_value("blend_const_color_b_float", 1)
> >>> +system_value("blend_const_color_a_float", 1)
> >>> +system_value("blend_const_color_rgba8888_unorm", 1)
> >>> +system_value("blend_const_color_aaaa8888_unorm", 1)
> >>> +
> >>> +# Barycentric coordinate intrinsics.
> >>> +#
> >>> +# These set up the barycentric coordinates for a particular
> >>> interpolation.
> >>> +# The first three are for the simple cases: pixel, centroid, or
> >>> per-sample
> >>> +# (at gl_SampleID). The next two handle interpolating at a specified
> >>> +# sample location, or interpolating with a vec2 offset,
> >>> +#
> >>> +# The interp_mode index should be either the INTERP_MODE_SMOOTH or
> >>> +# INTERP_MODE_NOPERSPECTIVE enum values.
> >>> +#
> >>> +# The vec2 value produced by these intrinsics is intended for use as
> the
> >>> +# barycoord source of a load_interpolated_input intrinsic.
> >>> +
> >>> +def barycentric(name, src_comp=[]):
> >>> + intrinsic("load_barycentric_" + name, src_comp=src_comp,
> dest_comp=2,
> >>> + indices=[INTERP_MODE], flags=[CAN_ELIMINATE,
> CAN_REORDER])
> >>> +
> >>> +# no sources. const_index[] = { interp_mode }
> >>> +barycentric("pixel")
> >>> +barycentric("centroid")
> >>> +barycentric("sample")
> >>> +# src[] = { sample_id }. const_index[] = { interp_mode }
> >>> +barycentric("at_sample", [1])
> >>> +# src[] = { offset.xy }. const_index[] = { interp_mode }
> >>> +barycentric("at_offset", [2])
> >>> +
> >>> +# Load operations pull data from some piece of GPU memory. All load
> >>> +# operations operate in terms of offsets into some piece of
> theoretical
> >>> +# memory. Loads from externally visible memory (UBO and SSBO) simply
> >>> take a
> >>> +# byte offset as a source. Loads from opaque memory (uniforms,
> inputs,
> >>> etc.)
> >>> +# take a base+offset pair where the base (const_index[0]) gives the
> >>> location
> >>> +# of the start of the variable being loaded and and the offset source
> is
> >>> a
> >>> +# offset into that variable.
> >>> +#
> >>> +# Uniform load operations have a second "range" index that specifies
> the
> >>> +# range (starting at base) of the data from which we are loading. If
> >>> +# const_index[1] == 0, then the range is unknown.
> >>> +#
> >>> +# Some load operations such as UBO/SSBO load and per_vertex loads
> take an
> >>> +# additional source to specify which UBO/SSBO/vertex to load from.
> >>> +#
> >>> +# The exact address type depends on the lowering pass that generates
> the
> >>> +# load/store intrinsics. Typically, this is vec4 units for things
> such
> >>> as
> >>> +# varying slots and float units for fragment shader inputs. UBO and
> SSBO
> >>> +# offsets are always in bytes.
> >>> +
> >>> +def load(name, num_srcs, indices=[], flags=[]):
> >>> + intrinsic("load_" + name, [1] * num_srcs, dest_comp=0,
> >>> indices=indices,
> >>> + flags=flags)
> >>> +
> >>> +# src[] = { offset }. const_index[] = { base, range }
> >>> +load("uniform", 1, [BASE, RANGE], [CAN_ELIMINATE, CAN_REORDER])
> >>> +# src[] = { buffer_index, offset }. No const_index
> >>> +load("ubo", 2, flags=[CAN_ELIMINATE, CAN_REORDER])
> >>> +# src[] = { offset }. const_index[] = { base, component }
> >>> +load("input", 1, [BASE, COMPONENT], [CAN_ELIMINATE, CAN_REORDER])
> >>> +# src[] = { vertex, offset }. const_index[] = { base, component }
> >>> +load("per_vertex_input", 2, [BASE, COMPONENT], [CAN_ELIMINATE,
> >>> CAN_REORDER])
> >>> +# src[] = { barycoord, offset }. const_index[] = { base, component }
> >>> +intrinsic("load_interpolated_input", src_comp=[2, 1], dest_comp=0,
> >>> + indices=[BASE, COMPONENT], flags=[CAN_ELIMINATE,
> CAN_REORDER])
> >>> +
> >>> +# src[] = { buffer_index, offset }. No const_index
> >>> +load("ssbo", 2, flags=[CAN_ELIMINATE])
> >>> +# src[] = { offset }. const_index[] = { base, component }
> >>> +load("output", 1, [BASE, COMPONENT], flags=[CAN_ELIMINATE])
> >>> +# src[] = { vertex, offset }. const_index[] = { base, component }
> >>> +load("per_vertex_output", 2, [BASE, COMPONENT], [CAN_ELIMINATE])
> >>> +# src[] = { offset }. const_index[] = { base }
> >>> +load("shared", 1, [BASE], [CAN_ELIMINATE])
> >>> +# src[] = { offset }. const_index[] = { base, range }
> >>> +load("push_constant", 1, [BASE, RANGE], [CAN_ELIMINATE, CAN_REORDER])
> >>> +
> >>> +# Stores work the same way as loads, except now the first source is
> the
> >>> value
> >>> +# to store and the second (and possibly third) source specify where to
> >>> store
> >>> +# the value. SSBO and shared memory stores also have a write mask as
> >>> +# const_index[0].
> >>> +
> >>> +def store(name, num_srcs, indices=[], flags=[]):
> >>> + intrinsic("store_" + name, [0] + ([1] * (num_srcs - 1)),
> >>> indices=indices, flags=flags)
> >>> +
> >>> +# src[] = { value, offset }. const_index[] = { base, write_mask,
> >>> component }
> >>> +store("output", 2, [BASE, WRMASK, COMPONENT])
> >>> +# src[] = { value, vertex, offset }.
> >>> +# const_index[] = { base, write_mask, component }
> >>> +store("per_vertex_output", 3, [BASE, WRMASK, COMPONENT])
> >>> +# src[] = { value, block_index, offset }. const_index[] = {
> write_mask }
> >>> +store("ssbo", 3, [WRMASK])
> >>> +# src[] = { value, offset }. const_index[] = { base, write_mask }
> >>> +store("shared", 2, [BASE, WRMASK])
> >>> diff --git a/src/compiler/nir/nir_intrinsics.c
> >>> b/src/compiler/nir/nir_intrinsics_c.py
> >>> similarity index 59%
> >>> rename from src/compiler/nir/nir_intrinsics.c
> >>> rename to src/compiler/nir/nir_intrinsics_c.py
> >>> index 0257b19b348..22b5e5823ed 100644
> >>> --- a/src/compiler/nir/nir_intrinsics.c
> >>> +++ b/src/compiler/nir/nir_intrinsics_c.py
> >>> @@ -1,5 +1,6 @@
> >>> -/*
> >>> - * Copyright © 2014 Intel Corporation
> >>> +
> >>> +template = """\
> >>> +/* Copyright (C) 2018 Red Hat
> >>> *
> >>> * Permission is hereby granted, free of charge, to any person
> obtaining
> >>> a
> >>> * copy of this software and associated documentation files (the
> >>> "Software"),
> >>> @@ -19,39 +20,32 @@
> >>> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> >>> ARISING
> >>> * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> >>> DEALINGS
> >>> * IN THE SOFTWARE.
> >>> - *
> >>> - * Authors:
> >>> - * Connor Abbott (cwabbott0 at gmail.com)
> >>> - *
> >>> */
> >>>
> >>> #include "nir.h"
> >>>
> >>> -#define OPCODE(name) nir_intrinsic_##name
> >>> -
> >>> -#define INTRINSIC(_name, _num_srcs, _src_components, _has_dest, \
> >>> - _dest_components, _num_variables, _num_indices, \
> >>> - idx0, idx1, idx2, _flags) \
> >>> -{ \
> >>> - .name = #_name, \
> >>> - .num_srcs = _num_srcs, \
> >>> - .src_components = _src_components, \
> >>> - .has_dest = _has_dest, \
> >>> - .dest_components = _dest_components, \
> >>> - .num_variables = _num_variables, \
> >>> - .num_indices = _num_indices, \
> >>> - .index_map = { \
> >>> - [NIR_INTRINSIC_ ## idx0] = 1, \
> >>> - [NIR_INTRINSIC_ ## idx1] = 2, \
> >>> - [NIR_INTRINSIC_ ## idx2] = 3, \
> >>> - }, \
> >>> - .flags = _flags \
> >>> +const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics] = {
> >>> +% for name, opcode in sorted(intr_opcodes.iteritems()):
> >>> +{
> >>> + .name = "${name}",
> >>> + .num_srcs = ${opcode.num_srcs},
> >>> + .src_components = {
> >>> + ${ ", ".join(str(comp) for comp in opcode.src_components) }
> >>> + },
> >>> + .has_dest = ${ "TRUE" if opcode.has_dest else "FALSE" },
> >>> + .dest_components = ${opcode.dest_components},
> >>> + .num_variables = ${opcode.num_variables},
> >>> + .num_indices = ${opcode.num_indices},
> >>> + .index_map = {
> >>> + ${ ", ".join(str(idx) for idx in opcode.indices) }
> >>> + },
> >>> + .flags = ${ "0" if len(opcode.flags) == 0 else " |
> >>> ".join(opcode.flags) },
> >>> },
> >>> +% endfor
> >>> +};
> >>> +"""
> >>>
> >>> -#define NIR_INTRINSIC_xx 0
> >>> -
> >>> -#define LAST_INTRINSIC(name)
> >>> +from nir_intrinsics import intr_opcodes
> >>> +from mako.template import Template
> >>>
> >>> -const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics] = {
> >>> -#include "nir_intrinsics.h"
> >>> -};
> >>> \ No newline at end of file
> >>> +print Template(template).render(intr_opcodes=intr_opcodes)
> >>> diff --git a/src/compiler/nir/nir_intrinsics_h.py
> >>> b/src/compiler/nir/nir_intrinsics_h.py
> >>> new file mode 100644
> >>> index 00000000000..000ed53f25d
> >>> --- /dev/null
> >>> +++ b/src/compiler/nir/nir_intrinsics_h.py
> >>> @@ -0,0 +1,44 @@
> >>> +
> >>> +template = """\
> >>> +/* Copyright (C) 2018 Red Hat
> >>> + *
> >>> + * Permission is hereby granted, free of charge, to any person
> obtaining
> >>> a
> >>> + * copy of this software and associated documentation files (the
> >>> "Software"),
> >>> + * to deal in the Software without restriction, including without
> >>> limitation
> >>> + * the rights to use, copy, modify, merge, publish, distribute,
> >>> sublicense,
> >>> + * and/or sell copies of the Software, and to permit persons to whom
> the
> >>> + * Software is furnished to do so, subject to the following
> conditions:
> >>> + *
> >>> + * The above copyright notice and this permission notice (including
> the
> >>> next
> >>> + * paragraph) shall be included in all copies or substantial portions
> of
> >>> the
> >>> + * Software.
> >>> + *
> >>> + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
> >>> EXPRESS OR
> >>> + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
> >>> MERCHANTABILITY,
> >>> + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
> >>> SHALL
> >>> + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
> OR
> >>> OTHER
> >>> + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
> >>> ARISING
> >>> + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> >>> DEALINGS
> >>> + * IN THE SOFTWARE.
> >>> + */
> >>> +
> >>> +#ifndef _NIR_INTRINSICS_
> >>> +#define _NIR_INTRINSICS_
> >>> +
> >>> +<% opcode_names = sorted(intr_opcodes.iterkeys()) %>
> >>> +
> >>> +typedef enum {
> >>> +% for name in opcode_names:
> >>> + nir_intrinsic_${name},
> >>> +% endfor
> >>> +
> >>> + nir_last_intrinsic = nir_intrinsic_${opcode_names[-1]},
> >>> + nir_num_intrinsics = nir_last_intrinsic + 1
> >>> +} nir_intrinsic_op;
> >>> +
> >>> +#endif /* _NIR_INTRINSICS_ */"""
> >>> +
> >>> +from nir_intrinsics import intr_opcodes
> >>> +from mako.template import Template
> >>> +
> >>> +print Template(template).render(intr_opcodes=intr_opcodes)
> >>> --
> >>> 2.14.3
> >>>
> >>
> >>
>
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