Allow more worker arguments in SpecConstr
Starting with GHC 8.2 (rc1 -- head) I noticed that the SpecConstr pass does not always optimize completely with SpecConstr-heavy code.
Setting -fmax-worker-args=100
leads to complete specialization again.
However, given that code annotated with SPEC
should be optimized until no more SPEC
arguments are alive, shouldn't callToNewPats
in compiler/specialise/SpecConstr.hs
specialize *irrespective* of the size of the worker argument list?
Code that actually fails to specialize is fairly large, hence no test case -- though I have some files with core output showing insufficient specialization.
(I'd be willing to write a patch for this)
Trac metadata
Trac field | Value |
---|---|
Version | 8.2.1-rc3 |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |