i965/vs: Add support for bit-shift operations.

Reviewed-by: Chad Versace <chad@chad-versace.us>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index e5eda22..98ecd25 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1254,8 +1254,14 @@ vec4_visitor::visit(ir_expression *ir)
       break;
 
    case ir_binop_lshift:
+      inst = emit(BRW_OPCODE_SHL, result_dst, op[0], op[1]);
+      break;
+
    case ir_binop_rshift:
-      assert(!"GLSL 1.30 features unsupported");
+      if (ir->type->base_type == GLSL_TYPE_INT)
+        inst = emit(BRW_OPCODE_ASR, result_dst, op[0], op[1]);
+      else
+        inst = emit(BRW_OPCODE_SHR, result_dst, op[0], op[1]);
       break;
 
    case ir_quadop_vector: