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| author | Matt Turner <mattst88@gmail.com> | 2014-04-15 16:28:04 -0700 |
|---|---|---|
| committer | Matt Turner <mattst88@gmail.com> | 2014-04-15 16:28:04 -0700 |
| commit | f092e8951ce5212ba3cbb382ce3a6666eb6c9bed (patch) | |
| tree | 18e7ee9f35ffbc3e4f50da3c8a757a0a8a116b19 /src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp | |
| parent | 7ae870211ddc40ef6ed209a322c3a721214bb737 (diff) | |
| download | external_mesa3d-f092e8951ce5212ba3cbb382ce3a6666eb6c9bed.zip external_mesa3d-f092e8951ce5212ba3cbb382ce3a6666eb6c9bed.tar.gz external_mesa3d-f092e8951ce5212ba3cbb382ce3a6666eb6c9bed.tar.bz2 | |
i965/fs: Only sweep NOPs if register coalescing made progress.
Otherwise there's nothing to do.
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp b/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp index 4e3b611..d5dd2c2 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp @@ -215,17 +215,18 @@ fs_visitor::register_coalesce() reg_from = -1; } - foreach_list_safe(node, &this->instructions) { - fs_inst *inst = (fs_inst *)node; + if (progress) { + foreach_list_safe(node, &this->instructions) { + fs_inst *inst = (fs_inst *)node; - if (inst->opcode == BRW_OPCODE_NOP) { - inst->remove(); - progress = true; + if (inst->opcode == BRW_OPCODE_NOP) { + inst->remove(); + progress = true; + } } - } - if (progress) invalidate_live_intervals(); + } return progress; } |