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glsl: Implement constant expr evaluation for bitwise-not

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Implement by adding a case to ir_expression::constant_expression_value()
for ir_unop_bit_not.
This commit is contained in:
Chad Versace 2010-10-08 17:28:34 -07:00 • committed by Kenneth Graunke
parent 5c4c36f7f3
commit 90a8b792c0
1 changed files with 15 additions and 0 deletions
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15
src/glsl/ir_constant_expression.cpp
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@ -100,6 +100,21 @@ ir_expression::constant_expression_value()
}
switch (this->operation) {
case ir_unop_bit_not:
switch (op[0]->type->base_type) {
case GLSL_TYPE_INT:
for (unsigned c = 0; c < components; c++)
data.i[c] = ~ op[0]->value.i[c];
break;
case GLSL_TYPE_UINT:
for (unsigned c = 0; c < components; c++)
data.u[c] = ~ op[0]->value.u[c];
break;
default:
assert(0);
}
break;
case ir_unop_logic_not:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
for (unsigned c = 0; c < op[0]->type->components(); c++)