diff options
Diffstat (limited to 'src/compiler/nir/nir_constant_expressions.py')
| -rw-r--r-- | src/compiler/nir/nir_constant_expressions.py | 246 |
1 files changed, 159 insertions, 87 deletions
diff --git a/src/compiler/nir/nir_constant_expressions.py b/src/compiler/nir/nir_constant_expressions.py index 32784f6398d..e36dc4853b5 100644 --- a/src/compiler/nir/nir_constant_expressions.py +++ b/src/compiler/nir/nir_constant_expressions.py @@ -1,4 +1,43 @@ #! /usr/bin/python2 + +def type_has_size(type_): + return type_[-1:].isdigit() + +def type_sizes(type_): + if type_.endswith("8"): + return [8] + elif type_.endswith("16"): + return [16] + elif type_.endswith("32"): + return [32] + elif type_.endswith("64"): + return [64] + else: + return [32, 64] + +def type_add_size(type_, size): + if type_has_size(type_): + return type_ + return type_ + str(size) + +def get_const_field(type_): + if type_ == "int32": + return "i32" + if type_ == "uint32": + return "u32" + if type_ == "int64": + return "i64" + if type_ == "uint64": + return "u64" + if type_ == "bool32": + return "u32" + if type_ == "float32": + return "f32" + if type_ == "float64": + return "f64" + raise Exception(str(type_)) + assert(0) + template = """\ /* * Copyright (C) 2014 Intel Corporation @@ -205,110 +244,140 @@ unpack_half_1x16(uint16_t u) } /* Some typed vector structures to make things like src0.y work */ -% for type in ["float", "int", "uint", "bool"]: -struct ${type}_vec { - ${type} x; - ${type} y; - ${type} z; - ${type} w; +typedef float float32_t; +typedef double float64_t; +typedef bool bool32_t; +% for type in ["float", "int", "uint"]: +% for width in [32, 64]: +struct ${type}${width}_vec { + ${type}${width}_t x; + ${type}${width}_t y; + ${type}${width}_t z; + ${type}${width}_t w; }; % endfor +% endfor + +struct bool32_vec { + bool x; + bool y; + bool z; + bool w; +}; % for name, op in sorted(opcodes.iteritems()): static nir_const_value -evaluate_${name}(unsigned num_components, nir_const_value *_src) +evaluate_${name}(unsigned num_components, unsigned bit_size, + nir_const_value *_src) { nir_const_value _dst_val = { { {0, 0, 0, 0} } }; - ## For each non-per-component input, create a variable srcN that - ## contains x, y, z, and w elements which are filled in with the - ## appropriately-typed values. - % for j in range(op.num_inputs): - % if op.input_sizes[j] == 0: - <% continue %> - % elif "src" + str(j) not in op.const_expr: - ## Avoid unused variable warnings - <% continue %> - %endif - - struct ${op.input_types[j]}_vec src${j} = { - % for k in range(op.input_sizes[j]): - % if op.input_types[j] == "bool": - _src[${j}].u[${k}] != 0, - % else: - _src[${j}].${op.input_types[j][:1]}[${k}], - % endif - % endfor - }; - % endfor + switch (bit_size) { + % for bit_size in [32, 64]: + case ${bit_size}: { + <% + output_type = type_add_size(op.output_type, bit_size) + input_types = [type_add_size(type_, bit_size) for type_ in op.input_types] + %> + + ## For each non-per-component input, create a variable srcN that + ## contains x, y, z, and w elements which are filled in with the + ## appropriately-typed values. + % for j in range(op.num_inputs): + % if op.input_sizes[j] == 0: + <% continue %> + % elif "src" + str(j) not in op.const_expr: + ## Avoid unused variable warnings + <% continue %> + %endif - % if op.output_size == 0: - ## For per-component instructions, we need to iterate over the - ## components and apply the constant expression one component - ## at a time. - for (unsigned _i = 0; _i < num_components; _i++) { - ## For each per-component input, create a variable srcN that - ## contains the value of the current (_i'th) component. - % for j in range(op.num_inputs): - % if op.input_sizes[j] != 0: - <% continue %> - % elif "src" + str(j) not in op.const_expr: - ## Avoid unused variable warnings - <% continue %> - % elif op.input_types[j] == "bool": - bool src${j} = _src[${j}].u[_i] != 0; + struct ${input_types[j]}_vec src${j} = { + % for k in range(op.input_sizes[j]): + % if input_types[j] == "bool32": + _src[${j}].u32[${k}] != 0, % else: - ${op.input_types[j]} src${j} = _src[${j}].${op.input_types[j][:1]}[_i]; + _src[${j}].${get_const_field(input_types[j])}[${k}], % endif % endfor + }; + % endfor + + % if op.output_size == 0: + ## For per-component instructions, we need to iterate over the + ## components and apply the constant expression one component + ## at a time. + for (unsigned _i = 0; _i < num_components; _i++) { + ## For each per-component input, create a variable srcN that + ## contains the value of the current (_i'th) component. + % for j in range(op.num_inputs): + % if op.input_sizes[j] != 0: + <% continue %> + % elif "src" + str(j) not in op.const_expr: + ## Avoid unused variable warnings + <% continue %> + % elif input_types[j] == "bool32": + bool src${j} = _src[${j}].u32[_i] != 0; + % else: + ${input_types[j]}_t src${j} = + _src[${j}].${get_const_field(input_types[j])}[_i]; + % endif + % endfor + + ## Create an appropriately-typed variable dst and assign the + ## 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: + ${output_type}_t dst; + ${op.const_expr} + % else: + ${output_type}_t dst = ${op.const_expr}; + % endif + + ## Store the current component of the actual destination to the + ## value of dst. + % if output_type == "bool32": + ## Sanitize the C value to a proper NIR bool + _dst_val.u32[_i] = dst ? NIR_TRUE : NIR_FALSE; + % else: + _dst_val.${get_const_field(output_type)}[_i] = dst; + % endif + } + % else: + ## In the non-per-component case, create a struct dst with + ## 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 ${output_type}_vec dst; - ## Create an appropriately-typed variable dst and assign the - ## 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; ${op.const_expr} % else: - ${op.output_type} dst = ${op.const_expr}; + ## 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. + dst.x = dst.y = dst.z = dst.w = ${op.const_expr}; % endif - ## Store the current component of the actual destination to the - ## value of dst. - % if op.output_type == "bool": - ## Sanitize the C value to a proper NIR bool - _dst_val.u[_i] = dst ? NIR_TRUE : NIR_FALSE; - % else: - _dst_val.${op.output_type[:1]}[_i] = dst; - % endif - } - % else: - ## In the non-per-component case, create a struct dst with - ## 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; - - % 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. - dst.x = dst.y = dst.z = dst.w = ${op.const_expr}; + ## For each component in the destination, copy the value of dst to + ## the actual destination. + % for k in range(op.output_size): + % if output_type == "bool32": + ## Sanitize the C value to a proper NIR bool + _dst_val.u32[${k}] = dst.${"xyzw"[k]} ? NIR_TRUE : NIR_FALSE; + % else: + _dst_val.${get_const_field(output_type)}[${k}] = dst.${"xyzw"[k]}; + % endif + % endfor % 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; - % else: - _dst_val.${op.output_type[:1]}[${k}] = dst.${"xyzw"[k]}; - % endif - % endfor - % endif + break; + } + % endfor + + default: + unreachable("unknown bit width"); + } return _dst_val; } @@ -316,12 +385,12 @@ evaluate_${name}(unsigned num_components, nir_const_value *_src) nir_const_value nir_eval_const_opcode(nir_op op, unsigned num_components, - nir_const_value *src) + unsigned bit_width, nir_const_value *src) { switch (op) { % for name in sorted(opcodes.iterkeys()): case nir_op_${name}: { - return evaluate_${name}(num_components, src); + return evaluate_${name}(num_components, bit_width, src); break; } % endfor @@ -333,4 +402,7 @@ nir_eval_const_opcode(nir_op op, unsigned num_components, 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_has_size=type_has_size, + type_add_size=type_add_size, + get_const_field=get_const_field) |