Add conversion of bool to float as an IR operation to match int to float.

ast_function.cpp

@@ -139,7 +139,7 @@ convert_component(ir_rvalue *src, const glsl_type *desired_type)
       case GLSL_TYPE_INT:
 	 return new ir_expression(ir_unop_i2f, desired_type, src, NULL);
       case GLSL_TYPE_BOOL:
-	 assert(!"FINISHME: Convert bool to float.");
+	 return new ir_expression(ir_unop_b2f, desired_type, src, NULL);
       }
       break;
    case GLSL_TYPE_BOOL: {

ast_to_hir.cpp

@@ -120,7 +120,8 @@ apply_implicit_conversion(const glsl_type *to, ir_rvalue * &from,
       from = new ir_expression(ir_unop_u2f, to, from, NULL);
       break;
    case GLSL_TYPE_BOOL:
-      assert(!"FINISHME: Convert bool to float.");
+      from = new ir_expression(ir_unop_b2f, to, from, NULL);
+      break;
    default:
       assert(0);
    }

ir.cpp

@@ -64,6 +64,8 @@ ir_expression::get_num_operands(void)
       1, /* ir_unop_log2 */
       1, /* ir_unop_f2i */
       1, /* ir_unop_i2f */
+      1, /* ir_unop_f2b */
+      1, /* ir_unop_b2f */
       1, /* ir_unop_u2f */
 
       1, /* ir_unop_trunc */

ir.h

@@ -316,6 +316,8 @@ enum ir_expression_operation {
    ir_unop_log2,
    ir_unop_f2i,      /**< Float-to-integer conversion. */
    ir_unop_i2f,      /**< Integer-to-float conversion. */
+   ir_unop_f2b,      /**< Float-to-boolean conversion */
+   ir_unop_b2f,      /**< Boolean-to-float conversion */
    ir_unop_u2f,      /**< Unsigned-to-float conversion. */
 
    /**

ir_print_visitor.cpp

@@ -100,6 +100,8 @@ void ir_print_visitor::visit(ir_expression *ir)
       "log2",
       "f2i",
       "i2f",
+      "f2b",
+      "b2f",
       "u2f",
       "trunc",
       "ceil",