ir_to_mesa: Add support for discard instructions.

Fixes glsl-fs-discard-01.

diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp
index b140d96851f82e05577f3a392976e6595e15c583..b270e2da413db2fdc4e768e87d8c53b9d441cd93 100644 (file)
--- a/src/mesa/shader/ir_to_mesa.cpp
+++ b/src/mesa/shader/ir_to_mesa.cpp
@@ -1342,9 +1342,10 @@ ir_to_mesa_visitor::visit(ir_return *ir)
 void
 ir_to_mesa_visitor::visit(ir_discard *ir)
 {
-   assert(0);
+   assert(ir->condition == NULL); /* FINISHME */
 
-   ir->condition->accept(this);
+   ir_to_mesa_emit_op1(ir, OPCODE_KIL_NV,
+                      ir_to_mesa_undef_dst, ir_to_mesa_undef);
 }
 
 void