GHC.Cmm.Utils

Documentation

primRepCmmType :: Platform -> PrimRep -> CmmType

slotCmmType :: Platform -> SlotTy -> CmmType

slotForeignHint :: SlotTy -> ForeignHint

typeCmmType :: Platform -> UnaryType -> CmmType

typeForeignHint :: UnaryType -> ForeignHint

primRepForeignHint :: PrimRep -> ForeignHint

zeroCLit :: Platform -> CmmLit

mkIntCLit :: Platform -> Int -> CmmLit

mkWordCLit :: Platform -> Integer -> CmmLit

packHalfWordsCLit :: Platform -> StgHalfWord -> StgHalfWord -> CmmLit

mkByteStringCLit :: CLabel -> ByteString -> (CmmLit, GenCmmDecl (GenCmmStatics raw) info stmt)

We make a top-level decl for the string, and return a label pointing to it

mkFileEmbedLit :: CLabel -> FilePath -> (CmmLit, GenCmmDecl (GenCmmStatics raw) info stmt)

We make a top-level decl for the embedded binary file, and return a label pointing to it

mkDataLits :: Section -> CLabel -> [CmmLit] -> GenCmmDecl (GenCmmStatics raw) info stmt

Build a data-segment data block

mkRODataLits :: CLabel -> [CmmLit] -> GenCmmDecl (GenCmmStatics raw) info stmt

mkStgWordCLit :: Platform -> StgWord -> CmmLit

mkIntExpr :: Platform -> Int -> CmmExpr

zeroExpr :: Platform -> CmmExpr

mkLblExpr :: CLabel -> CmmExpr

cmmRegOff :: CmmReg -> Int -> CmmExpr

cmmOffset :: Platform -> CmmExpr -> Int -> CmmExpr

cmmLabelOff :: CLabel -> Int -> CmmLit

cmmOffsetLit :: CmmLit -> Int -> CmmLit

cmmOffsetExpr :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmRegOffB :: CmmReg -> ByteOff -> CmmExpr

cmmOffsetB :: Platform -> CmmExpr -> ByteOff -> CmmExpr

cmmLabelOffB :: CLabel -> ByteOff -> CmmLit

cmmOffsetLitB :: CmmLit -> ByteOff -> CmmLit

cmmOffsetExprB :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmRegOffW :: Platform -> CmmReg -> WordOff -> CmmExpr

cmmOffsetW :: Platform -> CmmExpr -> WordOff -> CmmExpr

cmmLabelOffW :: Platform -> CLabel -> WordOff -> CmmLit

cmmOffsetLitW :: Platform -> CmmLit -> WordOff -> CmmLit

cmmOffsetExprW :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmIndex :: Platform -> Width -> CmmExpr -> Int -> CmmExpr

Useful for creating an index into an array, with a statically known offset. The type is the element type; used for making the multiplier

cmmIndexExpr :: Platform -> Width -> CmmExpr -> CmmExpr -> CmmExpr

Useful for creating an index into an array, with an unknown offset.

cmmLoadIndex :: Platform -> CmmType -> CmmExpr -> Int -> CmmExpr

cmmLoadIndexW :: Platform -> CmmExpr -> Int -> CmmType -> CmmExpr

cmmNegate :: Platform -> CmmExpr -> CmmExpr

cmmULtWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmUGeWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmUGtWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmUShrWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmSLtWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmNeWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmEqWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmOrWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmAndWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmSubWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmAddWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmMulWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmQuotWord :: Platform -> CmmExpr -> CmmExpr -> CmmExpr

cmmToWord :: Platform -> CmmExpr -> CmmExpr

cmmMkAssign :: Platform -> CmmExpr -> Unique -> (CmmNode O O, CmmExpr)

isTrivialCmmExpr :: CmmExpr -> Bool

hasNoGlobalRegs :: CmmExpr -> Bool

isLit :: CmmExpr -> Bool

isComparisonExpr :: CmmExpr -> Bool

baseExpr :: CmmExpr

spExpr :: CmmExpr

hpExpr :: CmmExpr

spLimExpr :: CmmExpr

hpLimExpr :: CmmExpr

currentTSOExpr :: CmmExpr

currentNurseryExpr :: CmmExpr

cccsExpr :: CmmExpr

cmmTagMask :: DynFlags -> CmmExpr

cmmPointerMask :: DynFlags -> CmmExpr

cmmUntag :: DynFlags -> CmmExpr -> CmmExpr

cmmIsTagged :: DynFlags -> CmmExpr -> CmmExpr

cmmConstrTag1 :: DynFlags -> CmmExpr -> CmmExpr

regsOverlap :: Platform -> CmmReg -> CmmReg -> Bool

Returns True if the two STG registers overlap on the specified platform, in the sense that writing to one will clobber the other. This includes the case that the two registers are the same STG register. See Note [Overlapping global registers] for details.

regUsedIn :: Platform -> CmmReg -> CmmExpr -> Bool

Returns True if the STG register is used by the expression, in the sense that a store to the register might affect the value of the expression.

We must check for overlapping registers and not just equal registers here, otherwise CmmSink may incorrectly reorder assignments that conflict due to overlap. See #10521 and Note [Overlapping global registers].

mkLiveness :: Platform -> [LocalReg] -> Liveness

Operations that probably don't belong here

modifyGraph :: (Graph n C C -> Graph n' C C) -> GenCmmGraph n -> GenCmmGraph n'

ofBlockMap :: BlockId -> LabelMap CmmBlock -> CmmGraph

toBlockMap :: CmmGraph -> LabelMap CmmBlock

ofBlockList :: BlockId -> [CmmBlock] -> CmmGraph

toBlockList :: CmmGraph -> [CmmBlock]

bodyToBlockList :: Body CmmNode -> [CmmBlock]

toBlockListEntryFirst :: CmmGraph -> [CmmBlock]

like toBlockList, but the entry block always comes first

toBlockListEntryFirstFalseFallthrough :: CmmGraph -> [CmmBlock]

Like toBlockListEntryFirst, but we strive to ensure that we order blocks so that the false case of a conditional jumps to the next block in the output list of blocks. This matches the way OldCmm blocks were output since in OldCmm the false case was a fallthrough, whereas in Cmm conditional branches have both true and false successors. Block ordering can make a big difference in performance in the LLVM backend. Note that we rely crucially on the order of successors returned for CmmCondBranch by the NonLocal instance for CmmNode defined in GHC.Cmm.Node. -GBM

foldlGraphBlocks :: (a -> CmmBlock -> a) -> a -> CmmGraph -> a

mapGraphNodes :: (CmmNode C O -> CmmNode C O, CmmNode O O -> CmmNode O O, CmmNode O C -> CmmNode O C) -> CmmGraph -> CmmGraph

revPostorder :: CmmGraph -> [CmmBlock]

mapGraphNodes1 :: (forall e x. CmmNode e x -> CmmNode e x) -> CmmGraph -> CmmGraph

Ticks

blockTicks :: Block CmmNode C C -> [CmmTickish]

Extract all tick annotations from the given block