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feat: meaningful progress on debug annotations for llvm backend
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| module Generate.LLVM.Debug where | ||
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| -- TODO: move Medatada stuff here |
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| {-# LANGUAGE FlexibleContexts #-} | ||
| module Generate.LLVM.Helper where | ||
| import Control.Monad.State (MonadState, get, put) | ||
| import Data.Word (Word8) | ||
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| newMetadataId :: MonadState Int m => m Word8 | ||
| newMetadataId = do | ||
| s <- get | ||
| put (s + 1) | ||
| return $ fromIntegral s |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,64 @@ | ||
| {-# LANGUAGE DisambiguateRecordFields #-} | ||
| module Generate.LLVM.WithMetadata where | ||
| import GHC.Stack (HasCallStack) | ||
| import LLVM.IRBuilder (MonadIRBuilder, MonadModuleBuilder, emitInstrVoid, emitInstr, ParameterName (NoParameterName, ParameterName), IRBuilderT, named, fresh, runIRBuilderT, emptyIRBuilder, emitDefn) | ||
| import Data.ByteString.Short (ShortByteString) | ||
| import LLVM.AST (MDRef, MDNode, Instruction (Call, tailCallKind, callingConvention, returnAttributes, function, arguments, functionAttributes, metadata), Type (FunctionType, VoidType, PointerType), Operand (ConstantOperand, LocalReference), Name, Definition (GlobalDefinition), Parameter (Parameter)) | ||
| import LLVM.AST.Operand (Operand) | ||
| import LLVM.AST.Attribute (ParameterAttribute) | ||
| import qualified LLVM.AST.Constant as Constant | ||
| import LLVM.AST.Type (void, ptr) | ||
| import qualified LLVM.AST.CallingConvention as CC | ||
| import LLVM.AST.Typed | ||
| import qualified LLVM.AST.Global as Global | ||
| import qualified LLVM.AST.Constant as C | ||
| import Control.Monad (forM) | ||
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| callWithMetadata :: (HasCallStack, MonadIRBuilder m, MonadModuleBuilder m) => [(ShortByteString, MDRef MDNode)] -> Operand -> [(Operand, [ParameterAttribute])] -> m Operand | ||
| callWithMetadata metadata fun args = do | ||
| let instr = Call { | ||
| tailCallKind = Nothing | ||
| , callingConvention = CC.C | ||
| , returnAttributes = [] | ||
| , function = Right fun | ||
| , arguments = args | ||
| , functionAttributes = [] | ||
| , metadata = metadata | ||
| } | ||
| case typeOf fun of | ||
| (FunctionType r _ _) -> case r of | ||
| VoidType -> emitInstrVoid instr >> pure (ConstantOperand (Constant.Undef void)) | ||
| _ -> emitInstr r instr | ||
| (PointerType (FunctionType r _ _) _) -> case r of | ||
| VoidType -> emitInstrVoid instr >> pure (ConstantOperand (Constant.Undef void)) | ||
| _ -> emitInstr r instr | ||
| _ -> error "Cannot call non-function (Malformed AST)." | ||
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| functionWithMetadata | ||
| :: MonadModuleBuilder m | ||
| => [(ShortByteString, MDRef MDNode)] | ||
| -> Name -- ^ Function name | ||
| -> [(Type, ParameterName)] -- ^ Parameter types and name suggestions | ||
| -> Type -- ^ Return type | ||
| -> ([Operand] -> IRBuilderT m ()) -- ^ Function body builder | ||
| -> m Operand | ||
| functionWithMetadata metadata label argtys retty body = do | ||
| let tys = fst <$> argtys | ||
| (paramNames, blocks) <- runIRBuilderT emptyIRBuilder $ do | ||
| paramNames <- forM argtys $ \(_, paramName) -> case paramName of | ||
| NoParameterName -> fresh | ||
| ParameterName p -> fresh `named` p | ||
| body $ zipWith LocalReference tys paramNames | ||
| return paramNames | ||
| let | ||
| def = GlobalDefinition Global.functionDefaults | ||
| { Global.name = label | ||
| , Global.parameters = (zipWith (\ty nm -> Parameter ty nm []) tys paramNames, False) | ||
| , Global.returnType = retty | ||
| , Global.basicBlocks = blocks | ||
| , Global.metadata = metadata | ||
| } | ||
| funty = ptr $ FunctionType retty (fst <$> argtys) False | ||
| emitDefn def | ||
| pure $ ConstantOperand $ C.GlobalReference funty label |
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