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glsl: Generate code for constant ir_triop_csel expressions

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v2: 'for (a, b) in d' => 'for a, b in d'.  Suggested by Dylan.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
This commit is contained in:
Ian Romanick 2016-07-12 16:42:57 -07:00
parent 2761190baa
commit f3fcfe001f
1 changed files with 23 additions and 1 deletions
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24
src/compiler/glsl/ir_expression_operation.py
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@ -357,6 +357,24 @@ constant_template_lrp = mako.template.Template("""\
break;
}""")
# This template is for ir_triop_csel. This expression is really unique
# because not all of the operands are the same type, and the second operand
# determines the type of the expression (instead of the first).
constant_template_csel = mako.template.Template("""\
case ${op.get_enum_name()}:
for (unsigned c = 0; c < components; c++) {
switch (this->type->base_type) {
% for dst_type, src_types in op.signatures():
case ${src_types[1].glsl_type}:
data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types)};
break;
% endfor
default:
assert(0);
}
}
break;""")
vector_scalar_operation = "vector-scalar"
horizontal_operation = "horizontal"
@ -443,6 +461,8 @@ class operation(object):
return constant_template_vector_insert.render(op=self)
elif self.name == "lrp":
return constant_template_lrp.render(op=self)
elif self.name == "csel":
return constant_template_csel.render(op=self)
else:
return constant_template3.render(op=self)
elif self.num_operands == 4:
@ -700,7 +720,9 @@ ir_expression_operation = [
# component on vectors).
#
# See also lower_instructions_visitor::ldexp_to_arith
operation("csel", 3),
operation("csel", 3,
all_signatures=zip(all_types, zip(len(all_types) * (bool_type,), all_types, all_types)),
c_expression="{src0} ? {src1} : {src2}"),
operation("bitfield_extract", 3,
all_signatures=((int_type, (uint_type, int_type, int_type)),