[Mesa-dev] [PATCH 1/8] mesa/program: Translate csel operation from GLSL IR.

[Francisco Jerez]

This will be used internally by the GLSL front-end in order to
implement some built-in functions. Plumb it through MESA IR for
back-ends that rely on this translation pass.
---
 src/mesa/program/ir_to_mesa.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 0ae797f..5ff7304 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -1360,13 +1360,17 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
       emit(ir, OPCODE_LRP, result_dst, op[2], op[1], op[0]);
       break;
 
+   case ir_triop_csel:
+      op[0].negate = ~op[0].negate;
+      emit(ir, OPCODE_CMP, result_dst, op[0], op[1], op[2]);
+      break;
+
    case ir_binop_vector_extract:
    case ir_triop_fma:
    case ir_triop_bitfield_extract:
    case ir_triop_vector_insert:
    case ir_quadop_bitfield_insert:
    case ir_binop_ldexp:
-   case ir_triop_csel:
    case ir_binop_carry:
    case ir_binop_borrow:
    case ir_binop_imul_high:
-- 
2.10.2