-#! /usr/bin/python2
+from __future__ import print_function
+
+import re
+from nir_opcodes import opcodes
+from nir_opcodes import type_has_size, type_size, type_sizes, type_base_type
+
+def type_add_size(type_, size):
+ if type_has_size(type_):
+ return type_
+ return type_ + str(size)
+
+def op_bit_sizes(op):
+ sizes = None
+ if not type_has_size(op.output_type):
+ sizes = set(type_sizes(op.output_type))
+
+ for input_type in op.input_types:
+ if not type_has_size(input_type):
+ if sizes is None:
+ sizes = set(type_sizes(input_type))
+ else:
+ sizes = sizes.intersection(set(type_sizes(input_type)))
+
+ return sorted(list(sizes)) if sizes is not None else None
+
+def get_const_field(type_):
+ if type_size(type_) == 1:
+ return 'b'
+ elif type_base_type(type_) == 'bool':
+ return 'i' + str(type_size(type_))
+ elif type_ == "float16":
+ return "u16"
+ else:
+ return type_base_type(type_)[0] + str(type_size(type_))
+
template = """\
/*
* Copyright (C) 2014 Intel Corporation
*/
#include <math.h>
-#include "main/core.h"
#include "util/rounding.h" /* for _mesa_roundeven */
#include "util/half_float.h"
+#include "util/double.h"
+#include "util/softfloat.h"
+#include "util/bigmath.h"
#include "nir_constant_expressions.h"
+#define MAX_UINT_FOR_SIZE(bits) (UINT64_MAX >> (64 - (bits)))
+
+/**
+ * \brief Checks if the provided value is a denorm and flushes it to zero.
+ */
+static void
+constant_denorm_flush_to_zero(nir_const_value *value, unsigned bit_size)
+{
+ switch(bit_size) {
+ case 64:
+ if (0 == (value->u64 & 0x7ff0000000000000))
+ value->u64 &= 0x8000000000000000;
+ break;
+ case 32:
+ if (0 == (value->u32 & 0x7f800000))
+ value->u32 &= 0x80000000;
+ break;
+ case 16:
+ if (0 == (value->u16 & 0x7c00))
+ value->u16 &= 0x8000;
+ }
+}
+
/**
* Evaluate one component of packSnorm4x8.
*/
return _mesa_float_to_half(x);
}
+/**
+ * Evaluate one component of unpackHalf2x16.
+ */
+static float
+unpack_half_1x16_flush_to_zero(uint16_t u)
+{
+ if (0 == (u & 0x7c00))
+ u &= 0x8000;
+ return _mesa_half_to_float(u);
+}
+
/**
* Evaluate one component of unpackHalf2x16.
*/
}
/* Some typed vector structures to make things like src0.y work */
+typedef int8_t int1_t;
+typedef uint8_t uint1_t;
+typedef float float16_t;
+typedef float float32_t;
+typedef double float64_t;
+typedef bool bool1_t;
+typedef bool bool8_t;
+typedef bool bool16_t;
+typedef bool bool32_t;
+typedef bool bool64_t;
% for type in ["float", "int", "uint", "bool"]:
-struct ${type}_vec {
- ${type} x;
- ${type} y;
- ${type} z;
- ${type} w;
+% for width in type_sizes(type):
+struct ${type}${width}_vec {
+ ${type}${width}_t x;
+ ${type}${width}_t y;
+ ${type}${width}_t z;
+ ${type}${width}_t w;
+ ${type}${width}_t e;
+ ${type}${width}_t f;
+ ${type}${width}_t g;
+ ${type}${width}_t h;
+ ${type}${width}_t i;
+ ${type}${width}_t j;
+ ${type}${width}_t k;
+ ${type}${width}_t l;
+ ${type}${width}_t m;
+ ${type}${width}_t n;
+ ${type}${width}_t o;
+ ${type}${width}_t p;
};
% endfor
+% endfor
-% for name, op in sorted(opcodes.iteritems()):
-static nir_const_value
-evaluate_${name}(unsigned num_components, nir_const_value *_src)
-{
- nir_const_value _dst_val = { { {0, 0, 0, 0} } };
+<%def name="evaluate_op(op, bit_size, execution_mode)">
+ <%
+ output_type = type_add_size(op.output_type, bit_size)
+ input_types = [type_add_size(type_, bit_size) for type_ in op.input_types]
+ %>
## For each non-per-component input, create a variable srcN that
## contains x, y, z, and w elements which are filled in with the
<% continue %>
%endif
- struct ${op.input_types[j]}_vec src${j} = {
+ const struct ${input_types[j]}_vec src${j} = {
% for k in range(op.input_sizes[j]):
- % if op.input_types[j] == "bool":
- _src[${j}].u[${k}] != 0,
+ % if input_types[j] == "int1":
+ /* 1-bit integers use a 0/-1 convention */
+ -(int1_t)_src[${j}][${k}].b,
+ % elif input_types[j] == "float16":
+ _mesa_half_to_float(_src[${j}][${k}].u16),
% else:
- _src[${j}].${op.input_types[j][:1]}[${k}],
+ _src[${j}][${k}].${get_const_field(input_types[j])},
% endif
% endfor
+ % for k in range(op.input_sizes[j], 16):
+ 0,
+ % endfor
};
% endfor
% elif "src" + str(j) not in op.const_expr:
## Avoid unused variable warnings
<% continue %>
- % elif op.input_types[j] == "bool":
- bool src${j} = _src[${j}].u[_i] != 0;
+ % elif input_types[j] == "int1":
+ /* 1-bit integers use a 0/-1 convention */
+ const int1_t src${j} = -(int1_t)_src[${j}][_i].b;
+ % elif input_types[j] == "float16":
+ const float src${j} =
+ _mesa_half_to_float(_src[${j}][_i].u16);
% else:
- ${op.input_types[j]} src${j} = _src[${j}].${op.input_types[j][:1]}[_i];
+ const ${input_types[j]}_t src${j} =
+ _src[${j}][_i].${get_const_field(input_types[j])};
% endif
% endfor
## result of the const_expr to it. If const_expr already contains
## writes to dst, just include const_expr directly.
% if "dst" in op.const_expr:
- ${op.output_type} dst;
+ ${output_type}_t dst;
+
${op.const_expr}
% else:
- ${op.output_type} dst = ${op.const_expr};
+ ${output_type}_t dst = ${op.const_expr};
% endif
## Store the current component of the actual destination to the
## value of dst.
- % if op.output_type == "bool":
- ## Sanitize the C value to a proper NIR bool
- _dst_val.u[_i] = dst ? NIR_TRUE : NIR_FALSE;
+ % if output_type == "int1" or output_type == "uint1":
+ /* 1-bit integers get truncated */
+ _dst_val[_i].b = dst & 1;
+ % elif output_type.startswith("bool"):
+ ## Sanitize the C value to a proper NIR 0/-1 bool
+ _dst_val[_i].${get_const_field(output_type)} = -(int)dst;
+ % elif output_type == "float16":
+ if (nir_is_rounding_mode_rtz(execution_mode, 16)) {
+ _dst_val[_i].u16 = _mesa_float_to_float16_rtz(dst);
+ } else {
+ _dst_val[_i].u16 = _mesa_float_to_float16_rtne(dst);
+ }
% else:
- _dst_val.${op.output_type[:1]}[_i] = dst;
+ _dst_val[_i].${get_const_field(output_type)} = dst;
+ % endif
+
+ % if op.name != "fquantize2f16" and type_base_type(output_type) == "float":
+ % if type_has_size(output_type):
+ if (nir_is_denorm_flush_to_zero(execution_mode, ${type_size(output_type)})) {
+ constant_denorm_flush_to_zero(&_dst_val[_i], ${type_size(output_type)});
+ }
+ % else:
+ if (nir_is_denorm_flush_to_zero(execution_mode, ${bit_size})) {
+ constant_denorm_flush_to_zero(&_dst_val[i], bit_size);
+ }
+ %endif
% endif
}
% else:
## appropriately-typed elements x, y, z, and w and assign the result
## of the const_expr to all components of dst, or include the
## const_expr directly if it writes to dst already.
- struct ${op.output_type}_vec dst;
+ struct ${output_type}_vec dst;
% if "dst" in op.const_expr:
${op.const_expr}
% else:
## Splat the value to all components. This way expressions which
## write the same value to all components don't need to explicitly
- ## write to dest. One such example is fnoise which has a
- ## const_expr of 0.0f.
+ ## write to dest.
dst.x = dst.y = dst.z = dst.w = ${op.const_expr};
% endif
## For each component in the destination, copy the value of dst to
## the actual destination.
% for k in range(op.output_size):
- % if op.output_type == "bool":
- ## Sanitize the C value to a proper NIR bool
- _dst_val.u[${k}] = dst.${"xyzw"[k]} ? NIR_TRUE : NIR_FALSE;
+ % if output_type == "int1" or output_type == "uint1":
+ /* 1-bit integers get truncated */
+ _dst_val[${k}].b = dst.${"xyzwefghijklmnop"[k]} & 1;
+ % elif output_type.startswith("bool"):
+ ## Sanitize the C value to a proper NIR 0/-1 bool
+ _dst_val[${k}].${get_const_field(output_type)} = -(int)dst.${"xyzwefghijklmnop"[k]};
+ % elif output_type == "float16":
+ if (nir_is_rounding_mode_rtz(execution_mode, 16)) {
+ _dst_val[${k}].u16 = _mesa_float_to_float16_rtz(dst.${"xyzwefghijklmnop"[k]});
+ } else {
+ _dst_val[${k}].u16 = _mesa_float_to_float16_rtne(dst.${"xyzwefghijklmnop"[k]});
+ }
% else:
- _dst_val.${op.output_type[:1]}[${k}] = dst.${"xyzw"[k]};
+ _dst_val[${k}].${get_const_field(output_type)} = dst.${"xyzwefghijklmnop"[k]};
+ % endif
+
+ % if op.name != "fquantize2f16" and type_base_type(output_type) == "float":
+ % if type_has_size(output_type):
+ if (nir_is_denorm_flush_to_zero(execution_mode, ${type_size(output_type)})) {
+ constant_denorm_flush_to_zero(&_dst_val[${k}], ${type_size(output_type)});
+ }
+ % else:
+ if (nir_is_denorm_flush_to_zero(execution_mode, ${bit_size})) {
+ constant_denorm_flush_to_zero(&_dst_val[${k}], bit_size);
+ }
+ % endif
% endif
% endfor
% endif
+</%def>
+
+% for name, op in sorted(opcodes.items()):
+static void
+evaluate_${name}(nir_const_value *_dst_val,
+ UNUSED unsigned num_components,
+ ${"UNUSED" if op_bit_sizes(op) is None else ""} unsigned bit_size,
+ UNUSED nir_const_value **_src,
+ UNUSED unsigned execution_mode)
+{
+ % if op_bit_sizes(op) is not None:
+ switch (bit_size) {
+ % for bit_size in op_bit_sizes(op):
+ case ${bit_size}: {
+ ${evaluate_op(op, bit_size, execution_mode)}
+ break;
+ }
+ % endfor
- return _dst_val;
+ default:
+ unreachable("unknown bit width");
+ }
+ % else:
+ ${evaluate_op(op, 0, execution_mode)}
+ % endif
}
% endfor
-nir_const_value
-nir_eval_const_opcode(nir_op op, unsigned num_components,
- nir_const_value *src)
+void
+nir_eval_const_opcode(nir_op op, nir_const_value *dest,
+ unsigned num_components, unsigned bit_width,
+ nir_const_value **src,
+ unsigned float_controls_execution_mode)
{
switch (op) {
-% for name in sorted(opcodes.iterkeys()):
- case nir_op_${name}: {
- return evaluate_${name}(num_components, src);
- break;
- }
+% for name in sorted(opcodes.keys()):
+ case nir_op_${name}:
+ evaluate_${name}(dest, num_components, bit_width, src, float_controls_execution_mode);
+ return;
% endfor
default:
unreachable("shouldn't get here");
}
}"""
-from nir_opcodes import opcodes
from mako.template import Template
-print Template(template).render(opcodes=opcodes)
+print(Template(template).render(opcodes=opcodes, type_sizes=type_sizes,
+ type_base_type=type_base_type,
+ type_size=type_size,
+ type_has_size=type_has_size,
+ type_add_size=type_add_size,
+ op_bit_sizes=op_bit_sizes,
+ get_const_field=get_const_field))
projects / mesa.git / blobdiff