Module: Mesa
Branch: master
Commit: f246aa6bcab57f85a143cbfe7e9de24237921249
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f246aa6bcab57f85a143cbfe7e9de24237921249
Author: Iago Toral Quiroga <ito...@igalia.com>
Date: Fri Jul 31 14:36:30 2015 +0200
i965/vec4: do not predicate scratch writes for BRW_OPCODE_SEL instructions
The dst is always written, in this case the predicate is only used to select
the value to write, so if we are spilling the dst we always want to write
whatever value we selected to scratch.
Reviewed-by: Francisco Jerez <curroje...@riseup.net>
---
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index c5c0d2c..ba352be 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -3482,7 +3482,8 @@ vec4_visitor::emit_scratch_write(bblock_t *block,
vec4_instruction *inst,
dst_reg dst = dst_reg(brw_writemask(brw_vec8_grf(0, 0),
inst->dst.writemask));
vec4_instruction *write = SCRATCH_WRITE(dst, temp, index);
- write->predicate = inst->predicate;
+ if (inst->opcode != BRW_OPCODE_SEL)
+ write->predicate = inst->predicate;
write->ir = inst->ir;
write->annotation = inst->annotation;
inst->insert_after(block, write);
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