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| author | Simon Peyton Jones <simonpj@microsoft.com> | 2021-11-19 18:31:27 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-11-22 11:53:02 -0500 |
| commit | f748988bbea1442b898ba107653216543a293b4d (patch) | |
| tree | 2b3255df640ba03c06baec29dd9a44be8190063b /libraries | |
| parent | 742d8b6049c30f3b0cd1704d7a34d865bef41712 (diff) | |
| download | haskell-f748988bbea1442b898ba107653216543a293b4d.tar.gz | |
Better wrapper activation calculation
As #20709 showed, GHC could prioritise a wrapper over a SPEC
rule, which is potentially very bad. This patch fixes that
problem.
The fix is is described in Note [Wrapper activation], especially
item 4, 4a, and Conclusion.
For now, it has a temporary hack (replicating what was there before
to make sure that wrappers inline no earlier than phase 2. But
it should be temporary; see #19001.
Diffstat (limited to 'libraries')
0 files changed, 0 insertions, 0 deletions