From: Matt Turner <matts...@gmail.com>
Shader-db results for FS instructions with NIR on HSW:
total instructions in shared programs: 4186747 -> 4129871 (-1.36%)
instructions in affected programs: 2438094 -> 2381218 (-2.33%)
helped: 13525
HURT: 0
GAINED: 1
LOST: 5
Revewed-by: Jason Ekstrand <jason.ekstr...@intel.com>
---
src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp
b/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp
index 1935f06..1b24358 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_cmod_propagation.cpp
@@ -94,6 +94,15 @@ opt_cmod_propagation_local(bblock_t *block)
scan_inst->dst.reg_offset != inst->src[0].reg_offset)
break;
+ if (inst->conditional_mod == BRW_CONDITIONAL_NZ &&
+ scan_inst->opcode == BRW_OPCODE_CMP &&
+ (inst->dst.type == BRW_REGISTER_TYPE_D ||
+ inst->dst.type == BRW_REGISTER_TYPE_UD)) {
+ inst->remove(block);
+ progress = true;
+ break;
+ }
+
/* This must be done before the dst.type check because the result
* type of the AND will always be D, but the result of the CMP
* could be anything. The assumption is that the AND is just
--
2.3.2
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
