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authorKenneth Graunke <[email protected]>2016-08-08 14:44:06 -0700
committerTimothy Arceri <[email protected]>2017-01-12 09:47:29 +1100
commitb4c44ff08c1154ff3790de89f29520d178e9e0ef (patch)
tree357ca69856e70789172bf95a58346cda2d1ed263 /src/mesa/drivers/dri
parentb5e682a1efa0a929574e739807ac2b046e004561 (diff)
i965: Use the nir_move_comparisons pass.
While the below stats are encouraging this pass will also become very usefull for avoiding regression once brw_do_channel_expressions() and brw_do_vector_splitting() are disabled. On Broadwell: total instructions in shared programs: 13078787 -> 13060898 (-0.14%) instructions in affected programs: 1809827 -> 1791938 (-0.99%) helped: 4527 HURT: 157 total cycles in shared programs: 256562762 -> 256590424 (0.01%) cycles in affected programs: 159749392 -> 159777054 (0.02%) helped: 5583 HURT: 2289 total spills in shared programs: 14929 -> 14923 (-0.04%) spills in affected programs: 62 -> 56 (-9.68%) helped: 1 HURT: 0 total fills in shared programs: 20144 -> 20141 (-0.01%) fills in affected programs: 253 -> 250 (-1.19%) helped: 1 HURT: 3 LOST: 0 GAINED: 2 Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri')
-rw-r--r--src/mesa/drivers/dri/i965/brw_nir.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c
index d01119095cc..3c1bc5162fc 100644
--- a/src/mesa/drivers/dri/i965/brw_nir.c
+++ b/src/mesa/drivers/dri/i965/brw_nir.c
@@ -622,6 +622,7 @@ brw_postprocess_nir(nir_shader *nir, const struct brw_compiler *compiler,
OPT_V(nir_lower_to_source_mods);
OPT(nir_copy_prop);
OPT(nir_opt_dce);
+ OPT(nir_opt_move_comparisons);
OPT(nir_lower_locals_to_regs);