LLVM: Vector code segfaults under OSX
The following code:
import Data.Vector.Unboxed as V
main = foo 0 `seq` return ()
foo :: Int -> Vector Int
foo n = V.zipWith (\i j -> if i == j then 0 else 1)
(V.replicate n 0) (V.enumFromTo 0 (n - 1))
Segfaults under OSX when compiled with GHC HEAD with the following flags:
ghc -fllvm -O2 -optlc-O3 --make v.hs
The problem only occurs when ghc is set to -O2 and llc is set to -O3. (opt tools optimisation level doesn't seem to matter).
The problem also only occurs when TNTC is enabled.
Trac metadata
Trac field | Value |
---|---|
Version | 6.13 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler (LLVM) |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |