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| author | Ben Gamari <ben@smart-cactus.org> | 2019-12-16 21:29:04 +0000 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2019-12-21 17:54:27 -0500 |
| commit | 12c18155f6a11afe4d1d4e88f6605818276e3a92 (patch) | |
| tree | 3e08241cac952be91db666c620b5a30992e9e7bd | |
| parent | 0c9a91255da4ac62d914bb399a141ac857851a10 (diff) | |
| download | haskell-wip/bdescr/predict-not-taken.tar.gz | |
rts/Updates: Set prediction of stg_upd_frame_info branchwip/bdescr/predict-not-taken
This is a very important branch yet it didn't have any prediction set.
We predict the updated thunk to live in the young generation since this
is how the original code predicted.
| -rw-r--r-- | rts/Updates.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/Updates.h b/rts/Updates.h index 91d1b0b1cb..029e43f808 100644 --- a/rts/Updates.h +++ b/rts/Updates.h @@ -58,7 +58,7 @@ SET_INFO(p1, stg_BLACKHOLE_info); \ LDV_RECORD_CREATE(p1); \ bd = Bdescr(p1); \ - if (bdescr_gen_no(bd) != 0 :: bits16) { \ + if (bdescr_gen_no(bd) != 0 :: bits16) (likely: False) { \ recordMutableCap(p1, TO_W_(bdescr_gen_no(bd))); \ TICK_UPD_OLD_IND(); \ and_then; \ |