glsl: Add an ir_expression triop constructor with type inference.

We already have ir_expression constructors for unary and binary
operations, which automatically infer the type based on the opcode and
operand types.

These are convenient and also required for ir_builder support.

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Matt Turner <[email protected]>
Reviewed-by: Paul Berry <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index de41858764c..0646e6d754c 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -1252,6 +1252,11 @@ public:
     */
    ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1);
 
+   /**
+    * Constructor for ternary operation expressions
+    */
+   ir_expression(int op, ir_rvalue *op0, ir_rvalue *op1, ir_rvalue *op2);
+
    virtual ir_expression *as_expression()
    {
       return this;