Implement "sign" builtin via a new expression operator.

2010-05-03 20:05:57 -07:00
parent c2de187523
commit a4b7b5a654
4 changed files with 71 additions and 0 deletions
--- a/ir.cpp
+++ b/ir.cpp
@@ -53,6 +53,7 @@ ir_expression::get_num_operands(ir_expression_operation op)
      1, /* ir_unop_logic_not */
      1, /* ir_unop_neg */
      1, /* ir_unop_abs */
+      1, /* ir_unop_sign */
      1, /* ir_unop_rcp */
      1, /* ir_unop_rsq */
      1, /* ir_unop_sqrt */
@@ -112,6 +113,7 @@ static const char *const operator_strs[] = {
   "!",
   "neg",
   "abs",
+   "sign",
   "rcp",
   "rsq",
   "sqrt",