LLVM.ExecutionEngine
Contents
Description
An ExecutionEngine is JIT compiler that is used to generate code for an LLVM module.
- data EngineAccess a
- runEngineAccess :: EngineAccess a -> IO a
- addModuleProvider :: ModuleProvider -> EngineAccess ()
- addModule :: Module -> EngineAccess ()
- getPointerToFunction :: Function f -> EngineAccess (FunPtr f)
- getFreePointers :: Function f -> EngineAccess FreePointers
- type FreePointers = (Ptr ExecutionEngine, ModuleProviderRef, ValueRef)
- class Translatable f
- class Generic a
- generateFunction :: Translatable f => Value (Ptr f) -> EngineAccess f
- class Unsafe a b | a -> b where
- unsafePurify :: a -> b
- simpleFunction :: Translatable f => CodeGenModule (Function f) -> IO f
- unsafeGenerateFunction :: (Unsafe t a, Translatable t) => CodeGenModule (Function t) -> a
- data TargetData = TargetData {
- aBIAlignmentOfType :: Type -> Int
- aBISizeOfType :: Type -> Int
- littleEndian :: Bool
- callFrameAlignmentOfType :: Type -> Int
- intPtrType :: Type
- pointerSize :: Int
- preferredAlignmentOfType :: Type -> Int
- sizeOfTypeInBits :: Type -> Int
- storeSizeOfType :: Type -> Int
- getTargetData :: IO TargetData
- targetDataFromString :: String -> TargetData
- withIntPtrType :: (forall n. Nat n => WordN n -> a) -> a
Execution engine
data EngineAccess a Source
Instances
runEngineAccess :: EngineAccess a -> IO aSource
The LLVM execution engine is encapsulated so it cannot be accessed directly. The reason is that (currently) there must only ever be one engine, so access to it is wrapped in a monad.
addModule :: Module -> EngineAccess ()Source
getPointerToFunction :: Function f -> EngineAccess (FunPtr f)Source
type FreePointers = (Ptr ExecutionEngine, ModuleProviderRef, ValueRef)Source
Get all the information needed to free a function. Freeing code might have to be done from a (C) finalizer, so it has to done from C. The function c_freeFunctionObject take these pointers as arguments and frees the function.
Translation
class Translatable f Source
Class of LLVM function types that can be translated to the corresponding Haskell type.
Instances
| Generic a => Translatable (IO a) | |
| (Generic a, Translatable b) => Translatable (a -> b) |
generateFunction :: Translatable f => Value (Ptr f) -> EngineAccess fSource
Generate a Haskell function from an LLVM function.
Unsafe type conversion
class Unsafe a b | a -> b whereSource
Methods
Arguments
| :: a | |
| -> b | Remove the IO from a function return type. This is unsafe in general. |
Simplified interface.
simpleFunction :: Translatable f => CodeGenModule (Function f) -> IO fSource
Translate a function to Haskell code. This is a simplified interface to the execution engine and module mechanism.
unsafeGenerateFunction :: (Unsafe t a, Translatable t) => CodeGenModule (Function t) -> aSource
Combine simpleFunction and unsafePurify.
Target information
data TargetData Source
Constructors
| TargetData | |
Fields
| |
Instances
withIntPtrType :: (forall n. Nat n => WordN n -> a) -> aSource