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ir_algebraic: Convert ir_unop_logic_not handler to use a switch statement

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Currently only ir_binop_equal and ir_binop_nequal are supported, but
soon all of the relational operators will be added.  Making this
change now will simplify those commits.
This commit is contained in:
Ian Romanick 2010-08-09 09:54:47 -07:00
parent 3adce986c4
commit fe277089c7
1 changed files with 20 additions and 10 deletions
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30
src/glsl/ir_algebraic.cpp
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@ -161,22 +161,32 @@ ir_algebraic_visitor::handle_expression(ir_rvalue *in_ir)
}
switch (ir->operation) {
case ir_unop_logic_not:
if (op_expr[0] && op_expr[0]->operation == ir_binop_equal) {
case ir_unop_logic_not: {
enum ir_expression_operation new_op = ir_unop_logic_not;
if (op_expr[0] == NULL)
break;
switch (op_expr[0]->operation) {
case ir_binop_equal: new_op = ir_binop_nequal; break;
case ir_binop_nequal: new_op = ir_binop_equal; break;
default:
/* The default case handler is here to silence a warning from GCC.
*/
break;
}
if (new_op != ir_unop_logic_not) {
this->progress = true;
return new(ir) ir_expression(ir_binop_nequal,
ir->type,
op_expr[0]->operands[0],
op_expr[0]->operands[1]);
}
if (op_expr[0] && op_expr[0]->operation == ir_binop_nequal) {
this->progress = true;
return new(ir) ir_expression(ir_binop_equal,
return new(ir) ir_expression(new_op,
ir->type,
op_expr[0]->operands[0],
op_expr[0]->operands[1]);
}
break;
}
case ir_binop_add:
if (is_vec_zero(op_const[0])) {