Mesa (master): i965/fs: Implement new ir_unop_u2i and ir_unop_i2u opcodes.
Kenneth Graunke
kwg at kemper.freedesktop.org
Wed Jun 29 23:07:30 UTC 2011
Module: Mesa
Branch: master
Commit: b633ddeb9fd951ddc49e8a3fd25a946e5a16361f
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b633ddeb9fd951ddc49e8a3fd25a946e5a16361f
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Tue Jun 14 13:04:32 2011 -0700
i965/fs: Implement new ir_unop_u2i and ir_unop_i2u opcodes.
No MOV is necessary since signed/unsigned integers share the same
bit-representation; it's simply a question of interpretation. In
particular, the fs_reg::imm union shouldn't need updating.
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Eric Anholt <eric at anholt.net>
---
.../dri/i965/brw_fs_channel_expressions.cpp | 2 ++
src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 8 ++++++++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_channel_expressions.cpp b/src/mesa/drivers/dri/i965/brw_fs_channel_expressions.cpp
index 7f3f528..46677a6 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_channel_expressions.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_channel_expressions.cpp
@@ -191,6 +191,8 @@ ir_channel_expressions_visitor::visit_leave(ir_assignment *ir)
case ir_unop_log:
case ir_unop_exp2:
case ir_unop_log2:
+ case ir_unop_i2u:
+ case ir_unop_u2i:
case ir_unop_f2i:
case ir_unop_i2f:
case ir_unop_f2b:
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
index 2704f06..9091014 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp
@@ -349,6 +349,14 @@ fs_visitor::visit(ir_expression *ir)
emit_math(FS_OPCODE_RSQ, this->result, op[0]);
break;
+ case ir_unop_i2u:
+ op[0].type = BRW_REGISTER_TYPE_UD;
+ this->result = op[0];
+ break;
+ case ir_unop_u2i:
+ op[0].type = BRW_REGISTER_TYPE_D;
+ this->result = op[0];
+ break;
case ir_unop_i2f:
case ir_unop_b2f:
case ir_unop_b2i:
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