-fprof-auto adds cost centers to INLINE functions
According to the Section 5.2 of User's Guide, -fprof-auto should add cost centers only to functions that are not marked INLINE. However GHC 7.4 doesn't respect this.
A simple example:
foo :: Integer -> Integer
foo x = x + 100
{-# INLINE foo #-}
main = print $ loop (10000000::Int) 10000000000000000000000
where
loop 0 x = x
loop n x = loop (n-1) (foo x)Compile and run this like:
% ghc -prof -fprof-auto -O2 test.hs
% ./test +RTS -p
% grep foo test.profAnd you will see 'foo' is listed as a cost center.
This happens with GHC 7.4.1 and 7.4.2-rc1
Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.4.2-rc1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |