We haven't been only tracking raw GRF-GRF moves since the constant propagation
merge, and also the extension for source modifiers and uniforms.
---
src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
index 73fe1a5..cc488a1 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
@@ -245,7 +245,9 @@ fs_visitor::opt_copy_propagate_local(void *mem_ctx,
bblock_t *block)
}
}
- /* If this instruction is a raw copy, add it to the ACP. */
+ /* If this instruction's source could potentially be folded into the
+ * operand of another instruction, add it to the ACP.
+ */
if (inst->opcode == BRW_OPCODE_MOV &&
inst->dst.file == GRF &&
((inst->src[0].file == GRF &&
--
1.7.10.4
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