nir: add legal bit_sizes to intrinsics
With OpenCL some system values match the address bits, but in GLSL we also have some system values being 64 bit like subgroup masks. With this it is possible to adjust the builder functions so that depending on the bit_sizes the correct bit_size is used or an additional argument is added in case of multiple possible values. v2: validate dest bit_size v3: generate hex values in python code remove useless imports rename and move bit_sizes v4: add 1 to legal bit_sizes for front_face Signed-off-by: Karol Herbst <kherbst@redhat.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
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@ -1313,6 +1313,9 @@ typedef struct {
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*/
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unsigned dest_components;
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/** bitfield of legal bit sizes */
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unsigned dest_bit_sizes;
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/** the number of constant indices used by the intrinsic */
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unsigned num_indices;
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@ -32,7 +32,7 @@ class Intrinsic(object):
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NOTE: this must be kept in sync with nir_intrinsic_info.
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"""
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def __init__(self, name, src_components, dest_components,
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indices, flags, sysval):
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indices, flags, sysval, bit_sizes):
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"""Parameters:
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- name: the intrinsic name
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@ -45,6 +45,7 @@ class Intrinsic(object):
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- indices: list of constant indicies
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- flags: list of semantic flags
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- sysval: is this a system-value intrinsic
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- bit_sizes: allowed dest bit_sizes
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"""
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assert isinstance(name, str)
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assert isinstance(src_components, list)
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@ -58,6 +59,8 @@ class Intrinsic(object):
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if flags:
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assert isinstance(flags[0], str)
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assert isinstance(sysval, bool)
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if bit_sizes:
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assert isinstance(bit_sizes[0], int)
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self.name = name
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self.num_srcs = len(src_components)
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@ -68,6 +71,7 @@ class Intrinsic(object):
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self.indices = indices
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self.flags = flags
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self.sysval = sysval
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self.bit_sizes = bit_sizes
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#
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# Possible indices:
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@ -125,10 +129,10 @@ CAN_REORDER = "NIR_INTRINSIC_CAN_REORDER"
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INTR_OPCODES = {}
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def intrinsic(name, src_comp=[], dest_comp=-1, indices=[],
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flags=[], sysval=False):
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flags=[], sysval=False, bit_sizes=[]):
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assert name not in INTR_OPCODES
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INTR_OPCODES[name] = Intrinsic(name, src_comp, dest_comp,
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indices, flags, sysval)
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indices, flags, sysval, bit_sizes)
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intrinsic("nop", flags=[CAN_ELIMINATE])
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@ -454,12 +458,13 @@ intrinsic("shared_atomic_fmin", src_comp=[1, 1], dest_comp=1, indices=[BASE])
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intrinsic("shared_atomic_fmax", src_comp=[1, 1], dest_comp=1, indices=[BASE])
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intrinsic("shared_atomic_fcomp_swap", src_comp=[1, 1, 1], dest_comp=1, indices=[BASE])
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def system_value(name, dest_comp, indices=[]):
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def system_value(name, dest_comp, indices=[], bit_sizes=[32]):
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intrinsic("load_" + name, [], dest_comp, indices,
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flags=[CAN_ELIMINATE, CAN_REORDER], sysval=True)
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flags=[CAN_ELIMINATE, CAN_REORDER], sysval=True,
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bit_sizes=bit_sizes)
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system_value("frag_coord", 4)
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system_value("front_face", 1)
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system_value("front_face", 1, bit_sizes=[1, 32])
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system_value("vertex_id", 1)
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system_value("vertex_id_zero_base", 1)
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system_value("first_vertex", 1)
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@ -485,17 +490,17 @@ system_value("local_invocation_index", 1)
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system_value("work_group_id", 3)
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system_value("user_clip_plane", 4, indices=[UCP_ID])
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system_value("num_work_groups", 3)
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system_value("helper_invocation", 1)
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system_value("helper_invocation", 1, bit_sizes=[1, 32])
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system_value("alpha_ref_float", 1)
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system_value("layer_id", 1)
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system_value("view_index", 1)
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system_value("subgroup_size", 1)
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system_value("subgroup_invocation", 1)
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system_value("subgroup_eq_mask", 0)
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system_value("subgroup_ge_mask", 0)
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system_value("subgroup_gt_mask", 0)
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system_value("subgroup_le_mask", 0)
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system_value("subgroup_lt_mask", 0)
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system_value("subgroup_eq_mask", 0, bit_sizes=[32, 64])
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system_value("subgroup_ge_mask", 0, bit_sizes=[32, 64])
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system_value("subgroup_gt_mask", 0, bit_sizes=[32, 64])
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system_value("subgroup_le_mask", 0, bit_sizes=[32, 64])
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system_value("subgroup_lt_mask", 0, bit_sizes=[32, 64])
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system_value("num_subgroups", 1)
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system_value("subgroup_id", 1)
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system_value("local_group_size", 3)
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@ -1,3 +1,5 @@
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from functools import reduce
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import operator
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template = """\
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/* Copyright (C) 2018 Red Hat
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@ -36,6 +38,7 @@ const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics] = {
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% endif
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.has_dest = ${"true" if opcode.has_dest else "false"},
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.dest_components = ${max(opcode.dest_components, 0)},
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.dest_bit_sizes = ${hex(reduce(operator.or_, opcode.bit_sizes, 0))},
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.num_indices = ${opcode.num_indices},
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% if opcode.indices:
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.index_map = {
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@ -64,7 +67,7 @@ def main():
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path = os.path.join(args.outdir, 'nir_intrinsics.c')
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with open(path, 'wb') as f:
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f.write(Template(template, output_encoding='utf-8').render(INTR_OPCODES=INTR_OPCODES))
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f.write(Template(template, output_encoding='utf-8').render(INTR_OPCODES=INTR_OPCODES, reduce=reduce, operator=operator))
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if __name__ == '__main__':
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main()
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@ -563,9 +563,15 @@ validate_intrinsic_instr(nir_intrinsic_instr *instr, validate_state *state)
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if (nir_intrinsic_infos[instr->intrinsic].has_dest) {
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unsigned components_written = nir_intrinsic_dest_components(instr);
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unsigned bit_sizes = nir_intrinsic_infos[instr->intrinsic].dest_bit_sizes;
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validate_assert(state, components_written > 0);
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if (dest_bit_size && bit_sizes)
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validate_assert(state, dest_bit_size & bit_sizes);
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else
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dest_bit_size = dest_bit_size ? dest_bit_size : bit_sizes;
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validate_dest(&instr->dest, state, dest_bit_size, components_written);
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}
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}
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