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Add float/int conversion to ir_constant_expression.cpp.

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Gives CorrectParse2.frag one more constant folding.
This commit is contained in:
Eric Anholt 2010-04-06 10:53:57 -07:00
parent 326c676236
commit af18641f0a
1 changed files with 20 additions and 0 deletions
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20
ir_constant_expression.cpp
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@ -153,6 +153,26 @@ ir_constant_visitor::visit(ir_expression *ir)
for (c = 0; c < ir->operands[0]->type->components(); c++)
b[c] = !op[0]->value.b[c];
break;
case ir_unop_f2i:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
type = ir->type;
for (c = 0; c < ir->operands[0]->type->components(); c++) {
i[c] = op[0]->value.f[c];
}
break;
case ir_unop_i2f:
assert(op[0]->type->base_type == GLSL_TYPE_UINT ||
op[0]->type->base_type == GLSL_TYPE_INT);
type = ir->type;
for (c = 0; c < ir->operands[0]->type->components(); c++) {
if (op[0]->type->base_type == GLSL_TYPE_INT)
f[c] = op[0]->value.i[c];
else
f[c] = op[0]->value.u[c];
}
break;
case ir_binop_add:
if (ir->operands[0]->type == ir->operands[1]->type) {
type = ir->operands[0]->type;