Mesa (master): glsl: Add unary ir_expression constructor

[Ian Romanick]

Module: Mesa
Branch: master
Commit: 13f57d42b6929f50d8ef8b4123f46a61c46fde7b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=13f57d42b6929f50d8ef8b4123f46a61c46fde7b

Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Tue Nov  9 14:19:10 2010 -0800

glsl: Add unary ir_expression constructor

---

 src/glsl/ir.cpp |   13 +++++++++++++
 src/glsl/ir.h   |    8 ++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp
index 308b7c2..1f5e2eb 100644
--- a/src/glsl/ir.cpp
+++ b/src/glsl/ir.cpp
@@ -192,8 +192,21 @@ ir_assignment::ir_assignment(ir_rvalue *lhs, ir_rvalue *rhs,
 
 
 ir_expression::ir_expression(int op, const struct glsl_type *type,
+			     ir_rvalue *op0)
+{
+   assert(get_num_operands(ir_expression_operation(op)) == 1);
+   this->ir_type = ir_type_expression;
+   this->type = type;
+   this->operation = ir_expression_operation(op);
+   this->operands[0] = op0;
+   this->operands[1] = NULL;
+}
+
+ir_expression::ir_expression(int op, const struct glsl_type *type,
 			     ir_rvalue *op0, ir_rvalue *op1)
 {
+   assert((op1 == NULL) && (get_num_operands(ir_expression_operation(op)) == 1)
+	  || (get_num_operands(ir_expression_operation(op)) == 2));
    this->ir_type = ir_type_expression;
    this->type = type;
    this->operation = ir_expression_operation(op);
diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index 960cd8b..99fdaa3 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -832,6 +832,14 @@ enum ir_expression_operation {
 
 class ir_expression : public ir_rvalue {
 public:
+   /**
+    * Constructor for unary operation expressions
+    */
+   ir_expression(int op, const struct glsl_type *type, ir_rvalue *);
+
+   /**
+    * Constructor for binary operation expressions
+    */
    ir_expression(int op, const struct glsl_type *type,
 		 ir_rvalue *, ir_rvalue *);