%
-% (c) The GRASP/AQUA Project, Glasgow University, 1992-1994
+% (c) The GRASP/AQUA Project, Glasgow University, 1992-1998
%
\section[Constants]{Info about this compilation}
-!!!!! THIS CODE MUST AGREE WITH SMinterface.h !!!!!!
-
-*** This SHOULD BE the only module that is CPP'd with "stgdefs.h" stuff.
-
\begin{code}
module Constants (
uNFOLDING_USE_THRESHOLD,
uNFOLDING_CON_DISCOUNT_WEIGHT,
uNFOLDING_KEENESS_FACTOR,
- mAX_SPEC_ALL_PTRS,
- mAX_SPEC_ALL_NONPTRS,
- mAX_SPEC_MIXED_FIELDS,
+ mAX_CONTEXT_REDUCTION_DEPTH,
+ mAX_TUPLE_SIZE,
+
mAX_SPEC_SELECTEE_SIZE,
+ mAX_SPEC_AP_SIZE,
tARGET_MIN_INT, tARGET_MAX_INT,
mIN_UPD_SIZE,
mIN_SIZE_NonUpdHeapObject,
- mIN_SIZE_NonUpdStaticHeapObject,
+
+ sTD_HDR_SIZE,
+ pROF_HDR_SIZE,
+ gRAN_HDR_SIZE,
+ tICKY_HDR_SIZE,
+ aRR_HDR_SIZE,
+
+ sTD_ITBL_SIZE,
+ pROF_ITBL_SIZE,
+ gRAN_ITBL_SIZE,
+ tICKY_ITBL_SIZE,
mAX_FAMILY_SIZE_FOR_VEC_RETURNS,
- sTD_UF_SIZE, cON_UF_SIZE,
- sCC_STD_UF_SIZE, sCC_CON_UF_SIZE,
+ uF_SIZE,
+ sCC_UF_SIZE,
uF_RET,
- uF_SUB,
- uF_SUA,
+ uF_SU,
uF_UPDATEE,
- uF_COST_CENTRE,
+ uF_CCS,
+
+ sEQ_FRAME_SIZE,
mAX_Vanilla_REG,
mAX_Float_REG,
mAX_Double_REG,
mAX_Long_REG,
- mIN_MP_INT_SIZE,
- mP_STRUCT_SIZE,
+ mAX_Real_Vanilla_REG,
+ mAX_Real_Float_REG,
+ mAX_Real_Double_REG,
- oTHER_TAG, iND_TAG, -- semi-tagging stuff
-
- lIVENESS_R1,
- lIVENESS_R2,
- lIVENESS_R3,
- lIVENESS_R4,
- lIVENESS_R5,
- lIVENESS_R6,
- lIVENESS_R7,
- lIVENESS_R8,
+ oTHER_TAG,
mAX_INTLIKE, mIN_INTLIKE,
+ spRelToInt,
+
+ dOUBLE_SIZE,
+ iNT64_SIZE,
+ wORD64_SIZE,
+
+ interfaceFileFormatVersion
- spARelToInt,
- spBRelToInt
) where
-- This magical #include brings in all the everybody-knows-these magic
-- be in trouble.
#include "HsVersions.h"
-#include "../../includes/GhcConstants.h"
+#include "../includes/config.h"
+#include "../includes/MachRegs.h"
+#include "../includes/Constants.h"
import Util
\end{code}
All pretty arbitrary:
+
+\begin{code}
+mAX_TUPLE_SIZE = 37
+mAX_CONTEXT_REDUCTION_DEPTH = 20
+\end{code}
+
\begin{code}
uNFOLDING_USE_THRESHOLD = ( 8 :: Int)
uNFOLDING_CREATION_THRESHOLD = (30 :: Int) -- Discounts can be big
\end{code}
\begin{code}
-mAX_SPEC_ALL_PTRS = (MAX_SPEC_ALL_PTRS :: Int)
-mAX_SPEC_ALL_NONPTRS = (MAX_SPEC_ALL_NONPTRS :: Int)
-mAX_SPEC_MIXED_FIELDS = (MAX_SPEC_OTHER_SIZE :: Int)
+
+-- pre-compiled thunk types
mAX_SPEC_SELECTEE_SIZE = (MAX_SPEC_SELECTEE_SIZE :: Int)
+mAX_SPEC_AP_SIZE = (MAX_SPEC_AP_SIZE :: Int)
--- closure sizes: these do NOT include the header
+-- closure sizes: these do NOT include the header (see below for header sizes)
mIN_UPD_SIZE = (MIN_UPD_SIZE::Int)
mIN_SIZE_NonUpdHeapObject = (MIN_NONUPD_SIZE::Int)
-mIN_SIZE_NonUpdStaticHeapObject = (0::Int)
-\end{code}
-
-Sizes of gmp objects:
-\begin{code}
-mIN_MP_INT_SIZE = (MIN_MP_INT_SIZE :: Int)
-mP_STRUCT_SIZE = (MP_STRUCT_SIZE :: Int)
\end{code}
\begin{code}
Constants for semi-tagging; the tags associated with the data
constructors will start at 0 and go up.
-\begin{code}
-oTHER_TAG = (INFO_OTHER_TAG :: Integer) -- (-1) unevaluated, probably
-iND_TAG = (INFO_IND_TAG :: Integer) -- (-2) NOT USED, REALLY
-\end{code}
-Stuff for liveness masks:
\begin{code}
-lIVENESS_R1 = (LIVENESS_R1 :: Int)
-lIVENESS_R2 = (LIVENESS_R2 :: Int)
-lIVENESS_R3 = (LIVENESS_R3 :: Int)
-lIVENESS_R4 = (LIVENESS_R4 :: Int)
-lIVENESS_R5 = (LIVENESS_R5 :: Int)
-lIVENESS_R6 = (LIVENESS_R6 :: Int)
-lIVENESS_R7 = (LIVENESS_R7 :: Int)
-lIVENESS_R8 = (LIVENESS_R8 :: Int)
+oTHER_TAG = (INFO_OTHER_TAG :: Integer) -- (-1) unevaluated, probably
\end{code}
\begin{code}
mAX_INTLIKE = MAX_INTLIKE
\end{code}
+A little function that abstracts the stack direction. Note that most
+of the code generator is dependent on the stack direction anyway, so
+changing this on its own spells certain doom. ToDo: remove?
+
\begin{code}
--- THESE ARE DIRECTION SENSITIVE!
-spARelToInt :: Int{-VirtualSpAOffset-} -> Int{-VirtualSpAOffset-} -> Int
-spBRelToInt :: Int{-VirtualSpBOffset-} -> Int{-VirtualSpBOffset-} -> Int
+-- THIS IS DIRECTION SENSITIVE!
+
+-- stack grows down, positive virtual offsets correspond to negative
+-- additions to the stack pointer.
-spARelToInt spA off = spA - off -- equiv to: AREL(spA - off)
-spBRelToInt spB off = off - spB -- equiv to: BREL(spB - off)
+spRelToInt :: Int{-VirtualSpOffset-} -> Int{-VirtualSpOffset-} -> Int
+spRelToInt sp off = sp - off
\end{code}
A section of code-generator-related MAGIC CONSTANTS.
+
\begin{code}
mAX_FAMILY_SIZE_FOR_VEC_RETURNS = (MAX_VECTORED_RTN::Int) -- pretty arbitrary
-- If you change this, you may need to change runtimes/standard/Update.lhc
-- The update frame sizes
-sTD_UF_SIZE = (NOSCC_STD_UF_SIZE::Int)
-cON_UF_SIZE = (NOSCC_CON_UF_SIZE::Int)
+uF_SIZE = (NOSCC_UF_SIZE::Int)
-- Same again, with profiling
-sCC_STD_UF_SIZE = (SCC_STD_UF_SIZE::Int)
-sCC_CON_UF_SIZE = (SCC_CON_UF_SIZE::Int)
+sCC_UF_SIZE = (SCC_UF_SIZE::Int)
-- Offsets in an update frame. They don't change with profiling!
-uF_RET = (UF_RET::Int)
-uF_SUB = (UF_SUB::Int)
-uF_SUA = (UF_SUA::Int)
-uF_UPDATEE = (UF_UPDATEE::Int)
-uF_COST_CENTRE = (UF_COST_CENTRE::Int)
+uF_RET = (UF_RET::Int)
+uF_SU = (UF_SU::Int)
+uF_UPDATEE = (UF_UPDATEE::Int)
+uF_CCS = (UF_CCS::Int)
+\end{code}
+
+\begin{code}
+sEQ_FRAME_SIZE = (SEQ_FRAME_SIZE::Int)
\end{code}
\begin{code}
mAX_Vanilla_REG = (MAX_VANILLA_REG :: Int)
mAX_Float_REG = (MAX_FLOAT_REG :: Int)
mAX_Double_REG = (MAX_DOUBLE_REG :: Int)
-mAX_Long_REG = (MAX_LONG_REG :: Int)
+
+mAX_Real_Vanilla_REG = (MAX_REAL_VANILLA_REG :: Int)
+mAX_Real_Float_REG = (MAX_REAL_FLOAT_REG :: Int)
+mAX_Real_Double_REG = (MAX_REAL_DOUBLE_REG :: Int)
+\end{code}
+
+Closure header sizes.
+
+\begin{code}
+sTD_HDR_SIZE = (STD_HDR_SIZE :: Int)
+pROF_HDR_SIZE = (PROF_HDR_SIZE :: Int)
+gRAN_HDR_SIZE = (GRAN_HDR_SIZE :: Int)
+tICKY_HDR_SIZE = (TICKY_HDR_SIZE :: Int)
+aRR_HDR_SIZE = (ARR_HDR_SIZE :: Int)
+\end{code}
+
+Info Table sizes.
+
+\begin{code}
+sTD_ITBL_SIZE = (STD_ITBL_SIZE :: Int)
+pROF_ITBL_SIZE = (PROF_ITBL_SIZE :: Int)
+gRAN_ITBL_SIZE = (GRAN_ITBL_SIZE :: Int)
+tICKY_ITBL_SIZE = (TICKY_ITBL_SIZE :: Int)
+\end{code}
+
+Size of a double in StgWords.
+
+\begin{code}
+dOUBLE_SIZE = (DOUBLE_SIZE :: Int)
+mAX_Long_REG = (MAX_LONG_REG :: Int)
+wORD64_SIZE = (WORD64_SIZE :: Int)
+iNT64_SIZE = (INT64_SIZE :: Int)
+\end{code}
+
+The version of the interface file format we're
+using:
+
+\begin{code}
+interfaceFileFormatVersion = HscIfaceFileVersion
\end{code}
projects / ghc-hetmet.git / blobdiff