[Mesa-dev] [PATCH 3/4] i965/fs: Fix a comment in copy propagation.

Eric Anholt eric at anholt.net
Tue Oct 30 20:28:54 PDT 2012


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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