import BlockId
import CgUtils ( activeStgRegs, callerSaves )
import CLabel
-import Cmm
-import qualified PprCmm
+import OldCmm
+import qualified OldPprCmm as PprCmm
import OrdList
import BasicTypes
import Unique
import Util
+import Data.List ( partition )
import Control.Monad ( liftM )
type LlvmStatements = OrdList LlvmStatement
+
-- -----------------------------------------------------------------------------
-- | Top-level of the LLVM proc Code generator
--
genLlvmProc env (CmmData _ _)
= return (env, [])
-genLlvmProc env (CmmProc _ _ _ (ListGraph []))
+genLlvmProc env (CmmProc _ _ (ListGraph []))
= return (env, [])
-genLlvmProc env (CmmProc info lbl params (ListGraph blocks))
+genLlvmProc env (CmmProc info lbl (ListGraph blocks))
= do
(env', lmblocks, lmdata) <- basicBlocksCodeGen env blocks ([], [])
- let proc = CmmProc info lbl params (ListGraph lmblocks)
+ let proc = CmmProc info lbl (ListGraph lmblocks)
let tops = lmdata ++ [proc]
return (env', tops)
basicBlocksCodeGen env ([]) (blocks, tops)
= do let (blocks', allocs) = mapAndUnzip dominateAllocs blocks
let allocs' = concat allocs
- let ((BasicBlock id fstmts):rblocks) = blocks'
+ let ((BasicBlock id fstmts):rblks) = blocks'
fplog <- funPrologue
- let fblocks = (BasicBlock id (fplog ++ allocs' ++ fstmts)):rblocks
+ let fblocks = (BasicBlock id (fplog ++ allocs' ++ fstmts)):rblks
return (env, fblocks, tops)
basicBlocksCodeGen env (block:blocks) (lblocks', ltops')
basicBlocksCodeGen env' blocks (lblocks, ltops)
+-- | Allocations need to be extracted so they can be moved to the entry
+-- of a function to make sure they dominate all possible paths in the CFG.
+dominateAllocs :: LlvmBasicBlock -> (LlvmBasicBlock, [LlvmStatement])
+dominateAllocs (BasicBlock id stmts)
+ = let (allocs, stmts') = partition isAlloc stmts
+ isAlloc (Assignment _ (Alloca _ _)) = True
+ isAlloc _other = False
+ in (BasicBlock id stmts', allocs)
+
+
-- | Generate code for one block
basicBlockCodeGen :: LlvmEnv
-> CmmBasicBlock
return (env', [BasicBlock id (fromOL instrs)], top)
--- | Allocations need to be extracted so they can be moved to the entry
--- of a function to make sure they dominate all possible paths in the CFG.
-dominateAllocs :: LlvmBasicBlock -> (LlvmBasicBlock, [LlvmStatement])
-dominateAllocs (BasicBlock id stmts)
- = (BasicBlock id allstmts, allallocs)
- where
- (allstmts, allallocs) = foldl split ([],[]) stmts
- split (stmts', allocs) s@(Assignment _ (Alloca _ _))
- = (stmts', allocs ++ [s])
- split (stmts', allocs) other
- = (stmts' ++ [other], allocs)
-
-
-- -----------------------------------------------------------------------------
-- * CmmStmt code generation
--
-- Write barrier needs to be handled specially as it is implemented as an LLVM
-- intrinsic function.
+#if i386_TARGET_ARCH || x86_64_TARGET_ARCH || sparc_TARGET_ARCH
+genCall env (CmmPrim MO_WriteBarrier) _ _ _ = return (env, nilOL, [])
+
+#else
genCall env (CmmPrim MO_WriteBarrier) _ _ _ = do
let fname = fsLit "llvm.memory.barrier"
let funSig = LlvmFunctionDecl fname ExternallyVisible CC_Ccc LMVoid
where
lmTrue :: LlvmVar
lmTrue = LMLitVar $ LMIntLit (-1) i1
+#endif
-- Handle all other foreign calls and prim ops.
genCall env target res args ret = do
True -> do
(env', vval, stmts, top) <- exprToVar env val
(gv, s1) <- doExpr grt $ Load gr
- (ptr, s2) <- doExpr grt $ GetElemPtr True gv [ix]
+ (ptr, s2) <- doExpr grt $ GetElemPtr True gv [toI32 ix]
-- We might need a different pointer type, so check
case pLower grt == getVarType vval of
-- were fine
let ty = getVarType vc
let pairs = [ (ix, id) | (ix,Just id) <- zip ([0..]::[Integer]) maybe_ids ]
- let labels = map (\(ix, b) -> (mkIntLit ix ty, blockIdToLlvm b)) pairs
+ let labels = map (\(ix, b) -> (mkIntLit ty ix, blockIdToLlvm b)) pairs
-- out of range is undefied, so lets just branch to first label
let (_, defLbl) = head labels
genMachOp env _ op [x] = case op of
MO_Not w ->
- let all1 = mkIntLit (-1::Int) (widthToLlvmInt w)
+ let all1 = mkIntLit (widthToLlvmInt w) (-1::Int)
in negate (widthToLlvmInt w) all1 LM_MO_Xor
MO_S_Neg w ->
- let all0 = mkIntLit (0::Int) (widthToLlvmInt w)
+ let all0 = mkIntLit (widthToLlvmInt w) (0::Int)
in negate (widthToLlvmInt w) all0 LM_MO_Sub
MO_F_Neg w ->
in case isPointer grt && rem == 0 of
True -> do
(gv, s1) <- doExpr grt $ Load gr
- (ptr, s2) <- doExpr grt $ GetElemPtr True gv [ix]
+ (ptr, s2) <- doExpr grt $ GetElemPtr True gv [toI32 ix]
(var, s3) <- doExpr llvmWord $ Cast LM_Ptrtoint ptr llvmWord
return (env, var, unitOL s1 `snocOL` s2 `snocOL` s3, [])
let word = getVarType vx
let word2 = LMInt $ 2 * (llvmWidthInBits $ getVarType vx)
let shift = llvmWidthInBits word
- let shift1 = mkIntLit (shift - 1) llvmWord
- let shift2 = mkIntLit shift llvmWord
+ let shift1 = toIWord (shift - 1)
+ let shift2 = toIWord shift
if isInt word
then do
in case isPointer grt && rem == 0 of
True -> do
(gv, s1) <- doExpr grt $ Load gr
- (ptr, s2) <- doExpr grt $ GetElemPtr True gv [ix]
+ (ptr, s2) <- doExpr grt $ GetElemPtr True gv [toI32 ix]
-- We might need a different pointer type, so check
case grt == ty' of
-- were fine
-- | Generate code for a literal
genLit :: LlvmEnv -> CmmLit -> UniqSM ExprData
genLit env (CmmInt i w)
- = return (env, mkIntLit i (LMInt $ widthInBits w), nilOL, [])
+ = return (env, mkIntLit (LMInt $ widthInBits w) i, nilOL, [])
genLit env (CmmFloat r w)
= return (env, LMLitVar $ LMFloatLit (fromRational r) (widthToLlvmFloat w),
genLit env (CmmLabelOff label off) = do
(env', vlbl, stmts, stat) <- genLit env (CmmLabel label)
- let voff = mkIntLit off llvmWord
+ let voff = toIWord off
(v1, s1) <- doExpr (getVarType vlbl) $ LlvmOp LM_MO_Add vlbl voff
return (env', v1, stmts `snocOL` s1, stat)
genLit env (CmmLabelDiffOff l1 l2 off) = do
(env1, vl1, stmts1, stat1) <- genLit env (CmmLabel l1)
(env2, vl2, stmts2, stat2) <- genLit env1 (CmmLabel l2)
- let voff = mkIntLit off llvmWord
+ let voff = toIWord off
let ty1 = getVarType vl1
let ty2 = getVarType vl2
if (isInt ty1) && (isInt ty2)
blockIdToLlvm :: BlockId -> LlvmVar
blockIdToLlvm bid = LMLocalVar (getUnique bid) LMLabel
-
-- | Create Llvm int Literal
-mkIntLit :: Integral a => a -> LlvmType -> LlvmVar
-mkIntLit i ty = LMLitVar $ LMIntLit (toInteger i) ty
+mkIntLit :: Integral a => LlvmType -> a -> LlvmVar
+mkIntLit ty i = LMLitVar $ LMIntLit (toInteger i) ty
+
+-- | Convert int type to a LLvmVar of word or i32 size
+toI32, toIWord :: Integral a => a -> LlvmVar
+toI32 = mkIntLit i32
+toIWord = mkIntLit llvmWord
-- | Error functions
projects / ghc-hetmet.git / blobdiff