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| author | Bartosz Nitka <niteria@gmail.com> | 2016-07-07 03:07:20 -0700 |
|---|---|---|
| committer | Bartosz Nitka <niteria@gmail.com> | 2016-07-07 03:57:44 -0700 |
| commit | 6ed7c4793fe1acd491646a8312afbbda6be1fd0b (patch) | |
| tree | 206c1a844201486bfdbfdf9cdca7efe9f2ab7d52 /compiler/nativeGen/RegAlloc/Linear | |
| parent | bedd62037f588321312feaf16923fa04d443e3d8 (diff) | |
| download | haskell-6ed7c4793fe1acd491646a8312afbbda6be1fd0b.tar.gz | |
Document some codegen nondeterminism
Bit-for-bit reproducible binaries are not a goal for now,
so this is just marking places that could be a problem.
Doing this will allow eltsUFM to be removed and will
leave only nonDetEltsUFM.
GHC Trac: #4012
Diffstat (limited to 'compiler/nativeGen/RegAlloc/Linear')
| -rw-r--r-- | compiler/nativeGen/RegAlloc/Linear/Stats.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/nativeGen/RegAlloc/Linear/Stats.hs b/compiler/nativeGen/RegAlloc/Linear/Stats.hs index c55df6bee8..71dedaeb55 100644 --- a/compiler/nativeGen/RegAlloc/Linear/Stats.hs +++ b/compiler/nativeGen/RegAlloc/Linear/Stats.hs @@ -66,7 +66,8 @@ pprStats code statss spillTotals = foldl' (zipWith (+)) [0, 0, 0, 0, 0] - $ eltsUFM spills + $ nonDetEltsUFM spills + -- See Note [Unique Determinism and code generation] -- count how many reg-reg-moves remain in the code moves = sum $ map countRegRegMovesNat code |