import CgMonad
import AbsCSyn
-import Constants ( uF_SIZE, sCC_UF_SIZE, sEQ_FRAME_SIZE, sCC_SEQ_FRAME_SIZE )
-import PrimRep ( PrimRep(..) )
-import CgStackery ( allocUpdateFrame )
-import CgUsages ( getSpRelOffset )
-import CmdLineOpts ( opt_SccProfilingOn )
+import CgStackery ( allocStackTop, updateFrameSize, seqFrameSize )
+import CgUsages ( getVirtSp, getSpRelOffset )
import Panic ( assertPanic )
\end{code}
pushUpdateFrame :: CAddrMode -> Code -> Code
pushUpdateFrame updatee code
- = let
- -- frame_size *includes* the return address
- frame_size = if opt_SccProfilingOn
- then sCC_UF_SIZE
- else uF_SIZE
- in
+ =
+#ifdef DEBUG
getEndOfBlockInfo `thenFC` \ eob_info ->
ASSERT(case eob_info of { EndOfBlockInfo _ (OnStack _) -> True;
_ -> False})
- allocUpdateFrame frame_size (
+#endif
+
+ allocStackTop updateFrameSize `thenFC` \ _ ->
+ getVirtSp `thenFC` \ vsp ->
+
+ setEndOfBlockInfo (EndOfBlockInfo vsp UpdateCode) (
-- Emit the push macro
absC (CMacroStmt PUSH_UPD_FRAME [
updatee,
- int_CLit0 -- Known to be zero because we have just
+ int_CLit0 -- we just entered a closure, so must be zero
])
`thenC` code
)
int_CLit0 = mkIntCLit 0 -- out here to avoid pushUpdateFrame CAF (sigh)
-
\end{code}
We push a SEQ frame just before evaluating the scrutinee of a case, if
it will also push the SEQ frame, using pushSeqFrame.
\begin{code}
-seq_frame_size | opt_SccProfilingOn = sCC_SEQ_FRAME_SIZE
- | otherwise = sEQ_FRAME_SIZE
-
reserveSeqFrame :: EndOfBlockInfo -> EndOfBlockInfo
reserveSeqFrame (EndOfBlockInfo args_sp (CaseAlts amode stuff))
- = EndOfBlockInfo (args_sp + seq_frame_size) (SeqFrame amode stuff)
+ = EndOfBlockInfo (args_sp + seqFrameSize) (SeqFrame amode stuff)
pushSeqFrame :: VirtualSpOffset -> FCode VirtualSpOffset
pushSeqFrame args_sp
= getSpRelOffset args_sp `thenFC` \ sp_rel ->
absC (CMacroStmt PUSH_SEQ_FRAME [CAddr sp_rel]) `thenC`
- returnFC (args_sp - seq_frame_size)
+ returnFC (args_sp - seqFrameSize)
\end{code}