glsl/ir_builder: Add support for some 64-bit bitcasts.

We need builder support to implement some of the builtins.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>

src/compiler/glsl/ir_builder.cpp

@@ -518,6 +518,30 @@ b2f(operand a)
    return expr(ir_unop_b2f, a);
 }
 
+ir_expression*
+bitcast_d2i64(operand a)
+{
+   return expr(ir_unop_bitcast_d2i64, a);
+}
+
+ir_expression*
+bitcast_d2u64(operand a)
+{
+   return expr(ir_unop_bitcast_d2u64, a);
+}
+
+ir_expression*
+bitcast_i642d(operand a)
+{
+   return expr(ir_unop_bitcast_i642d, a);
+}
+
+ir_expression*
+bitcast_u642d(operand a)
+{
+   return expr(ir_unop_bitcast_u642d, a);
+}
+
 ir_expression *
 interpolate_at_centroid(operand a)
 {

src/compiler/glsl/ir_builder.h

@@ -191,6 +191,12 @@ ir_expression *f2d(operand a);
 ir_expression *i2d(operand a);
 ir_expression *u2d(operand a);
 
+ir_expression *bitcast_d2i64(operand a);
+ir_expression *bitcast_d2u64(operand a);
+
+ir_expression *bitcast_i642d(operand a);
+ir_expression *bitcast_u642d(operand a);
+
 ir_expression *min2(operand a, operand b);
 ir_expression *max2(operand a, operand b);