diff options
| author | Matt Turner <[email protected]> | 2013-10-27 19:34:48 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2013-11-01 15:21:07 -0700 |
| commit | a8f76d829bdcdb5f238ba6206f1b768098745022 (patch) | |
| tree | b1257e5f92d61441e30fd8e540f0e6c81e70bd20 | |
| parent | fd05ede0d05ee896cf07e2f690ddb42567f9f606 (diff) | |
i965/fs: Optimize OR with identical sources into a MOV.
Helps a lot of Steam games.
total instructions in shared programs: 1409360 -> 1409124 (-0.02%)
instructions in affected programs: 20842 -> 20606 (-1.13%)
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Paul Berry <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 236e86c7cc2..2350cd097c5 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -1872,6 +1872,14 @@ fs_visitor::opt_algebraic() break; } break; + case BRW_OPCODE_OR: + if (inst->src[0].equals(inst->src[1])) { + inst->opcode = BRW_OPCODE_MOV; + inst->src[1] = reg_undef; + progress = true; + break; + } + break; default: break; } |