Mesa (master): i965/vs: Add support for bit-shift operations.
Eric Anholt
anholt at kemper.freedesktop.org
Wed Sep 28 19:15:02 UTC 2011
Module: Mesa
Branch: master
Commit: 158a5854502ce071e3f07d4ad9622b8ddb3c9859
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=158a5854502ce071e3f07d4ad9622b8ddb3c9859
Author: Eric Anholt <eric at anholt.net>
Date: Tue Sep 27 14:48:56 2011 -0700
i965/vs: Add support for bit-shift operations.
Reviewed-by: Chad Versace <chad at chad-versace.us>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
---
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
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
--- 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:
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