[project @ 2000-05-10 11:02:00 by simonmar]
[ghc-hetmet.git] / ghc / includes / PrimOps.h
index 0d97628..2edd62b 100644 (file)
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: PrimOps.h,v 1.44 2000/01/13 14:34:00 hwloidl Exp $
+ * $Id: PrimOps.h,v 1.53 2000/05/10 11:02:00 simonmar Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -221,15 +221,16 @@ typedef union {
 #define int2Addrzh(r,a)        r=(A_)(a)
 #define addr2Intzh(r,a)        r=(I_)(a)
 
-#define indexCharOffAddrzh(r,a,i)   r= ((C_ *)(a))[i]
-#define indexIntOffAddrzh(r,a,i)    r= ((I_ *)(a))[i]
-#define indexAddrOffAddrzh(r,a,i)   r= ((PP_)(a))[i]
-#define indexFloatOffAddrzh(r,a,i)  r= PK_FLT((P_) (((StgFloat *)(a)) + i))
-#define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
-#define indexStablePtrOffAddrzh(r,a,i)    r= ((StgStablePtr *)(a))[i]
+#define readCharOffAddrzh(r,a,i)       r= ((C_ *)(a))[i]
+#define readIntOffAddrzh(r,a,i)        r= ((I_ *)(a))[i]
+#define readWordOffAddrzh(r,a,i)       r= ((W_ *)(a))[i]
+#define readAddrOffAddrzh(r,a,i)       r= ((PP_)(a))[i]
+#define readFloatOffAddrzh(r,a,i)      r= PK_FLT((P_) (((StgFloat *)(a)) + i))
+#define readDoubleOffAddrzh(r,a,i)     r= PK_DBL((P_) (((StgDouble *)(a)) + i))
+#define readStablePtrOffAddrzh(r,a,i)   r= ((StgStablePtr *)(a))[i]
 #ifdef SUPPORT_LONG_LONGS
-#define indexInt64OffAddrzh(r,a,i)  r= ((LI_ *)(a))[i]
-#define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
+#define readInt64OffAddrzh(r,a,i)      r= ((LI_ *)(a))[i]
+#define readWord64OffAddrzh(r,a,i)     r= ((LW_ *)(a))[i]
 #endif
 
 #define writeCharOffAddrzh(a,i,v)       ((C_ *)(a))[i] = (v)
@@ -245,6 +246,18 @@ typedef union {
 #define writeWord64OffAddrzh(a,i,v)  ((LW_ *)(a))[i] = (v)
 #endif
 
+#define indexCharOffAddrzh(r,a,i)      r= ((C_ *)(a))[i]
+#define indexIntOffAddrzh(r,a,i)       r= ((I_ *)(a))[i]
+#define indexWordOffAddrzh(r,a,i)      r= ((W_ *)(a))[i]
+#define indexAddrOffAddrzh(r,a,i)      r= ((PP_)(a))[i]
+#define indexFloatOffAddrzh(r,a,i)     r= PK_FLT((P_) (((StgFloat *)(a)) + i))
+#define indexDoubleOffAddrzh(r,a,i)    r= PK_DBL((P_) (((StgDouble *)(a)) + i))
+#define indexStablePtrOffAddrzh(r,a,i)  r= ((StgStablePtr *)(a))[i]
+#ifdef SUPPORT_LONG_LONGS
+#define indexInt64OffAddrzh(r,a,i)     r= ((LI_ *)(a))[i]
+#define indexWord64OffAddrzh(r,a,i)    r= ((LW_ *)(a))[i]
+#endif
+
 /* -----------------------------------------------------------------------------
    Float PrimOps.
    -------------------------------------------------------------------------- */
@@ -560,29 +573,6 @@ extern I_ resetGenSymZh(void);
 #define indexWord64Arrayzh(r,a,i) indexWord64OffAddrzh(r,BYTE_ARR_CTS(a),i)
 #endif
 
-#define indexCharOffForeignObjzh(r,fo,i)   indexCharOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexIntOffForeignObjzh(r,fo,i)    indexIntOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexWordOffForeignObjzh(r,fo,i)   indexWordOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexAddrOffForeignObjzh(r,fo,i)   indexAddrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexFloatOffForeignObjzh(r,fo,i)  indexFloatOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexDoubleOffForeignObjzh(r,fo,i) indexDoubleOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexStablePtrOffForeignObjzh(r,fo,i)  indexStablePtrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#ifdef SUPPORT_LONG_LONGS
-#define indexInt64OffForeignObjzh(r,fo,i)  indexInt64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#define indexWord64OffForeignObjzh(r,fo,i) indexWord64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
-#endif
-
-#define indexCharOffAddrzh(r,a,i)   r= ((C_ *)(a))[i]
-#define indexIntOffAddrzh(r,a,i)    r= ((I_ *)(a))[i]
-#define indexWordOffAddrzh(r,a,i)   r= ((W_ *)(a))[i]
-#define indexAddrOffAddrzh(r,a,i)   r= ((PP_)(a))[i]
-#define indexFloatOffAddrzh(r,a,i)  r= PK_FLT((P_) (((StgFloat *)(a)) + i))
-#define indexDoubleOffAddrzh(r,a,i) r= PK_DBL((P_) (((StgDouble *)(a)) + i))
-#ifdef SUPPORT_LONG_LONGS
-#define indexInt64OffAddrzh(r,a,i)  r= ((LI_ *)(a))[i]
-#define indexWord64OffAddrzh(r,a,i) r= ((LW_ *)(a))[i]
-#endif
-
 /* Freezing arrays-of-ptrs requires changing an info table, for the
    benefit of the generational collector.  It needs to scavenge mutable
    objects, even if they are in old space.  When they become immutable,
@@ -595,7 +585,6 @@ extern I_ resetGenSymZh(void);
        }
 
 #define unsafeFreezzeByteArrayzh(r,a)  r=(a)
-#define unsafeThawByteArrayzh(r,a)     r=(a)
 
 EF_(unsafeThawArrayzh_fast);
 
@@ -673,6 +662,7 @@ EF_(newMutVarzh_fast);
 #define isEmptyMVarzh(r,a)       r=(I_)((GET_INFO((StgMVar*)(a))) == &EMPTY_MVAR_info )
 EF_(newMVarzh_fast);
 EF_(takeMVarzh_fast);
+EF_(tryTakeMVarzh_fast);
 EF_(putMVarzh_fast);
 
 
@@ -710,12 +700,12 @@ EF_(makeStableNamezh_fast);
    r = RET_STGCALL1(StgStablePtr,getStablePtr,a)
 
 #define deRefStablePtrzh(r,sp) do {            \
-  ASSERT(stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].weight > 0);    \
-  r = stable_ptr_table[sp & ~STABLEPTR_WEIGHT_MASK].addr; \
+  ASSERT(stable_ptr_table[stgCast(StgWord,sp) & ~STABLEPTR_WEIGHT_MASK].weight > 0);   \
+  r = stable_ptr_table[stgCast(StgWord,sp) & ~STABLEPTR_WEIGHT_MASK].addr; \
 } while (0);
 
 #define eqStablePtrzh(r,sp1,sp2) \
-    (r = ((sp1 & ~STABLEPTR_WEIGHT_MASK) == (sp2 & ~STABLEPTR_WEIGHT_MASK)))
+    (r = ((stgCast(StgWord,sp1) & ~STABLEPTR_WEIGHT_MASK) == (stgCast(StgWord,sp2) & ~STABLEPTR_WEIGHT_MASK)))
 
 #endif
 
@@ -740,50 +730,61 @@ extern int cmp_thread(const StgTSO *tso1, const StgTSO *tso2);
    A par in the Haskell code is ultimately translated to a parzh macro
    (with a case wrapped around it to guarantee that the macro is actually 
     executed; see compiler/prelude/PrimOps.lhs)
+   In GUM and SMP we only add a pointer to the spark pool.
+   In GranSim we call an RTS fct, forwarding additional parameters which
+   supply info on granularity of the computation, size of the result value
+   and the degree of parallelism in the sparked expression.
    ---------------------------------------------------------------------- */
 
 #if defined(GRAN)
-// hash coding changed from 2.10 to 4.00
-#define parzh(r,node)             parZh(r,node)
-
-#define parZh(r,node)                          \
-       PARZh(r,node,1,0,0,0,0,0)
+//@cindex _par_
+#define parzh(r,node)             PAR(r,node,1,0,0,0,0,0)
 
+//@cindex _parAt_
 #define parAtzh(r,node,where,identifier,gran_info,size_info,par_info,rest) \
-       parATZh(r,node,where,identifier,gran_info,size_info,par_info,rest,1)
+       parAT(r,node,where,identifier,gran_info,size_info,par_info,rest,1)
 
+//@cindex _parAtAbs_
 #define parAtAbszh(r,node,proc,identifier,gran_info,size_info,par_info,rest) \
-       parATZh(r,node,proc,identifier,gran_info,size_info,par_info,rest,2)
+       parAT(r,node,proc,identifier,gran_info,size_info,par_info,rest,2)
 
+//@cindex _parAtRel_
 #define parAtRelzh(r,node,proc,identifier,gran_info,size_info,par_info,rest) \
-       parATZh(r,node,proc,identifier,gran_info,size_info,par_info,rest,3)
+       parAT(r,node,proc,identifier,gran_info,size_info,par_info,rest,3)
 
+//@cindex _parAtForNow_
 #define parAtForNowzh(r,node,where,identifier,gran_info,size_info,par_info,rest)       \
-       parATZh(r,node,where,identifier,gran_info,size_info,par_info,rest,0)
+       parAT(r,node,where,identifier,gran_info,size_info,par_info,rest,0)
 
-#define parATZh(r,node,where,identifier,gran_info,size_info,par_info,rest,local)       \
-{                                                      \
-  rtsSparkQ result;                                            \
-  if (closure_SHOULD_SPARK((StgClosure*)node)) {                               \
+#define parAT(r,node,where,identifier,gran_info,size_info,par_info,rest,local) \
+{                                                              \
+  if (closure_SHOULD_SPARK((StgClosure*)node)) {               \
     rtsSparkQ result;                                          \
-    STGCALL6(newSpark, node,identifier,gran_info,size_info,par_info,local);    \
-    if (local==2) {         /* special case for parAtAbs */   \
-      STGCALL3(GranSimSparkAtAbs, result,(I_)where,identifier);\
-    } else if (local==3) {  /* special case for parAtRel */   \
-      STGCALL3(GranSimSparkAtAbs, result,(I_)(CurrentProc+where),identifier);  \
-    } else {       \
-      STGCALL3(GranSimSparkAt, result,where,identifier);       \
-    }        \
-  }                                                     \
+    PEs p;                                                      \
+                                                                \
+    STGCALL6(newSpark, node,identifier,gran_info,size_info,par_info,local); \
+    switch (local) {                                                        \
+      case 2: p = where;  /* parAtAbs means absolute PE no. expected */     \
+              break;                                                        \
+      case 3: p = CurrentProc+where; /* parAtRel means rel PE no. expected */\
+              break;                                                        \
+      default: p = where_is(where); /* parAt means closure expected */      \
+              break;                                                        \
+    }                                                                       \
+    /* update GranSim state according to this spark */                      \
+    STGCALL3(GranSimSparkAtAbs, result, (I_)p, identifier);                 \
+  }                                                                         \
 }
 
+//@cindex _parLocal_
 #define parLocalzh(r,node,identifier,gran_info,size_info,par_info,rest)        \
-       PARZh(r,node,rest,identifier,gran_info,size_info,par_info,1)
+       PAR(r,node,rest,identifier,gran_info,size_info,par_info,1)
 
+//@cindex _parGlobal_
 #define parGlobalzh(r,node,identifier,gran_info,size_info,par_info,rest) \
-       PARZh(r,node,rest,identifier,gran_info,size_info,par_info,0)
+       PAR(r,node,rest,identifier,gran_info,size_info,par_info,0)
 
-#define PARZh(r,node,rest,identifier,gran_info,size_info,par_info,local) \
+#define PAR(r,node,rest,identifier,gran_info,size_info,par_info,local) \
 {                                                                        \
   if (closure_SHOULD_SPARK((StgClosure*)node)) {                         \
     rtsSpark *result;                                                   \
@@ -800,66 +801,21 @@ extern int cmp_thread(const StgTSO *tso1, const StgTSO *tso2);
 #define noFollowzh(r,node)                             \
   /* noFollow not yet implemented!! */
 
-#endif  /* GRAN */
-
-#if 0
-
-# if defined(GRAN)
-/* ToDo: Use a parallel ticky macro for this */
-# define COUNT_SPARK(node)     { (CurrentTSO->gran.globalsparks)++; sparksCreated++; }
-# elif defined(PAR)
-# define COUNT_SPARK(node)     { (CurrentTSO->par.globalsparks)++; sparksCreated++; }
-# endif
+#elif defined(SMP) || defined(PAR)
 
-/* 
-   Note that we must bump the required thread count NOW, rather
-   than when the thread is actually created.  
-
-   forkzh not needed any more; see ghc/rts/PrimOps.hc
-*/
-#define forkzh(r,liveness,node)                                \
-{                                                      \
-  extern  nat context_switch;                           \
-  while (pending_sparks_tl[REQUIRED_POOL] == pending_sparks_lim[REQUIRED_POOL]) \
-    DO_YIELD((liveness << 1) | 1);                     \
-  if (closure_SHOULD_SPARK((StgClosure *)node)) {                              \
-    *pending_sparks_tl[REQUIRED_POOL]++ = (P_)(node);  \
-  } else {                                              \
-    sparksIgnored++;                                    \
-  }                                                    \
-  context_switch = 1;                                  \
-}
-
-// old version of par (previously used in GUM
-
-#define parzh(r,node)                                  \
-{                                                      \
-  extern  nat context_switch;                           \
-  COUNT_SPARK(node);                                           \
-  if (closure_SHOULD_SPARK((StgClosure *)node) &&      \
-      pending_sparks_tl[ADVISORY_POOL] < pending_sparks_lim[ADVISORY_POOL]) {\
-    *pending_sparks_tl[ADVISORY_POOL]++ = (StgClosure *)(node);        \
-  } else {                                             \
-    sparksIgnored++;                                   \
-  }                                                    \
-  r = context_switch = 1;                                      \
-}
-#endif /* 0 */
-
-#if defined(SMP) || defined(PAR)
 #define parzh(r,node)                                  \
 {                                                      \
+  extern unsigned int context_switch;                  \
   if (closure_SHOULD_SPARK((StgClosure *)node) &&      \
       SparkTl < SparkLim) {                            \
     *SparkTl++ = (StgClosure *)(node);                 \
   }                                                    \
-  r = 1;                                               \
+  r = context_switch = 1;                              \
 }
-#else
+#else /* !GRAN && !SMP && !PAR */
 #define parzh(r,node) r = 1
 #endif
 
-/* Hmm, I'll think about these later. */
 /* -----------------------------------------------------------------------------
    Pointer equality
    -------------------------------------------------------------------------- */
@@ -902,13 +858,25 @@ EF_(finalizzeWeakzh_fast);
 
 #define ForeignObj_CLOSURE_DATA(c)  (((StgForeignObj *)c)->data)
 
-EF_(makeForeignObjzh_fast);
+EF_(mkForeignObjzh_fast);
 
 #define writeForeignObjzh(res,datum) \
    (ForeignObj_CLOSURE_DATA(res) = (P_)(datum))
 
 #define eqForeignObj(f1,f2)  ((f1)==(f2))
 
+#define indexCharOffForeignObjzh(r,fo,i)   indexCharOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexIntOffForeignObjzh(r,fo,i)    indexIntOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexWordOffForeignObjzh(r,fo,i)   indexWordOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexAddrOffForeignObjzh(r,fo,i)   indexAddrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexFloatOffForeignObjzh(r,fo,i)  indexFloatOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexDoubleOffForeignObjzh(r,fo,i) indexDoubleOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexStablePtrOffForeignObjzh(r,fo,i)  indexStablePtrOffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#ifdef SUPPORT_LONG_LONGS
+#define indexInt64OffForeignObjzh(r,fo,i)  indexInt64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#define indexWord64OffForeignObjzh(r,fo,i) indexWord64OffAddrzh(r,ForeignObj_CLOSURE_DATA(fo),i)
+#endif
+
 #endif
 
 /* -----------------------------------------------------------------------------
@@ -933,4 +901,4 @@ extern StgInt sig_install (StgInt, StgInt, StgStablePtr, sigset_t *);
 #define stg_sig_ignore(sig,mask) sig_install(sig,STG_SIG_IGN,0,(sigset_t *)mask)
 #define stg_sig_catch(sig,ptr,mask) sig_install(sig,STG_SIG_HAN,ptr,(sigset_t *)mask)
 
-#endif PRIMOPS_H
+#endif /* PRIMOPS_H */