/* -----------------------------------------------------------------------------
- * $Id: PrimOps.hc,v 1.102 2002/10/22 11:01:19 simonmar Exp $
+ * $Id: PrimOps.hc,v 1.103 2002/12/11 15:36:45 simonmar Exp $
*
- * (c) The GHC Team, 1998-2000
+ * (c) The GHC Team, 1998-2002
*
* Primitive functions / data
*
* We only define the cases actually used, to avoid having too much
* garbage in this section. Warning: any bugs in here will be hard to
* track down.
+ *
+ * The return convention for an unboxed tuple is as follows:
+ * - fit as many fields as possible in registers (as per the
+ * function fast-entry point calling convention).
+ * - sort the rest of the fields into pointers and non-pointers.
+ * push the pointers on the stack, followed by the non-pointers.
+ * (so the pointers have higher addresses).
*/
/*------ All Regs available */
-#if defined(REG_R8)
+#if MAX_REAL_VANILLA_REG == 8
# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
# define RET_N(a) RET_P(a)
R1.w = (W_)(a); R2.w = (W_)(b); R3.w = (W_)(c); R4.w = (W_)(d); \
JMP_(ENTRY_CODE(Sp[0]));
-# define RET_NNPNNP(a,b,c,d,e,f) \
- R1.w = (W_)(a); R2.w = (W_)(b); R3.w = (W_)(c); \
- R4.w = (W_)(d); R5.w = (W_)(e); R6.w = (W_)(f); \
- JMP_(ENTRY_CODE(Sp[0]));
-
-#elif defined(REG_R7) || defined(REG_R6) || defined(REG_R5) || \
- defined(REG_R4) || defined(REG_R3)
+#elif MAX_REAL_VANILLA_REG > 2 && MAX_REAL_VANILLA_REG < 8
# error RET_n macros not defined for this setup.
/*------ 2 Registers available */
-#elif defined(REG_R2)
+#elif MAX_REAL_VANILLA_REG == 2
# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
# define RET_N(a) RET_P(a)
# define RET_NN(a,b) RET_PP(a,b)
# define RET_NP(a,b) RET_PP(a,b)
-# define RET_PPP(a,b,c) \
- R1.w = (W_)(a); R2.w = (W_)(b); Sp[-1] = (W_)(c); Sp -= 1; \
+# define RET_PPP(a,b,c) \
+ R1.w = (W_)(a); \
+ R2.w = (W_)(b); \
+ Sp[-1] = (W_)(c); \
+ Sp -= 1; \
JMP_(ENTRY_CODE(Sp[1]));
-# define RET_NNP(a,b,c) \
- R1.w = (W_)(a); R2.w = (W_)(b); Sp[-1] = (W_)(c); Sp -= 1; \
+
+# define RET_NNP(a,b,c) \
+ R1.w = (W_)(a); \
+ R2.w = (W_)(b); \
+ Sp[-1] = (W_)(c); \
+ Sp -= 1; \
JMP_(ENTRY_CODE(Sp[1]));
# define RET_NNNP(a,b,c,d) \
R1.w = (W_)(a); \
R2.w = (W_)(b); \
- /* Sp[-3] = ARGTAG(1); */ \
Sp[-2] = (W_)(c); \
Sp[-1] = (W_)(d); \
- Sp -= 3; \
- JMP_(ENTRY_CODE(Sp[3]));
+ Sp -= 2; \
+ JMP_(ENTRY_CODE(Sp[2]));
# define RET_NPNP(a,b,c,d) \
R1.w = (W_)(a); \
R2.w = (W_)(b); \
- /* Sp[-3] = ARGTAG(1); */ \
Sp[-2] = (W_)(c); \
Sp[-1] = (W_)(d); \
- Sp -= 3; \
- JMP_(ENTRY_CODE(Sp[3]));
-
-# define RET_NNPNNP(a,b,c,d,e,f) \
- R1.w = (W_)(a); \
- R2.w = (W_)(b); \
- Sp[-6] = (W_)(c); \
- /* Sp[-5] = ARGTAG(1); */ \
- Sp[-4] = (W_)(d); \
- /* Sp[-3] = ARGTAG(1); */ \
- Sp[-2] = (W_)(e); \
- Sp[-1] = (W_)(f); \
- Sp -= 6; \
- JMP_(ENTRY_CODE(Sp[6]));
+ Sp -= 2; \
+ JMP_(ENTRY_CODE(Sp[2]));
/*------ 1 Register available */
-#elif defined(REG_R1)
+#elif MAX_REAL_VANILLA_REG == 1
# define RET_P(a) R1.w = (W_)(a); JMP_(ENTRY_CODE(Sp[0]));
# define RET_N(a) RET_P(a)
JMP_(ENTRY_CODE(Sp[2]));
# define RET_NP(a,b) RET_PP(a,b)
-# define RET_PPP(a,b,c) \
- R1.w = (W_)(a); Sp[-2] = (W_)(b); Sp[-1] = (W_)(c); Sp -= 2; \
+# define RET_PPP(a,b,c) \
+ R1.w = (W_)(a); \
+ Sp[-2] = (W_)(b); \
+ Sp[-1] = (W_)(c); \
+ Sp -= 2; \
+ JMP_(ENTRY_CODE(Sp[2]));
+
+# define RET_NNP(a,b,c) \
+ R1.w = (W_)(a); \
+ Sp[-2] = (W_)(b); \
+ Sp[-1] = (W_)(c); \
+ Sp -= 2; \
JMP_(ENTRY_CODE(Sp[2]));
-# define RET_NNP(a,b,c) \
- R1.w = (W_)(a); Sp[-2] = (W_)(b); Sp[-1] = (W_)(c); Sp -= 3; \
- JMP_(ENTRY_CODE(Sp[3]));
# define RET_NNNP(a,b,c,d) \
R1.w = (W_)(a); \
- /* Sp[-5] = ARGTAG(1); */ \
- Sp[-4] = (W_)(b); \
- /* Sp[-3] = ARGTAG(1); */ \
+ Sp[-3] = (W_)(b); \
Sp[-2] = (W_)(c); \
Sp[-1] = (W_)(d); \
- Sp -= 5; \
- JMP_(ENTRY_CODE(Sp[5]));
+ Sp -= 3; \
+ JMP_(ENTRY_CODE(Sp[3]));
# define RET_NPNP(a,b,c,d) \
R1.w = (W_)(a); \
- Sp[-4] = (W_)(b); \
- /* Sp[-3] = ARGTAG(1); */ \
- Sp[-2] = (W_)(c); \
+ Sp[-3] = (W_)(c); \
+ Sp[-2] = (W_)(b); \
Sp[-1] = (W_)(d); \
- Sp -= 4; \
- JMP_(ENTRY_CODE(Sp[4]));
-
-# define RET_NNPNNP(a,b,c,d,e,f) \
- R1.w = (W_)(a); \
- Sp[-1] = (W_)(f); \
- Sp[-2] = (W_)(e); \
- /* Sp[-3] = ARGTAG(1); */ \
- Sp[-4] = (W_)(d); \
- /* Sp[-5] = ARGTAG(1); */ \
- Sp[-6] = (W_)(c); \
- Sp[-7] = (W_)(b); \
- /* Sp[-8] = ARGTAG(1); */ \
- Sp -= 8; \
- JMP_(ENTRY_CODE(Sp[8]));
+ Sp -= 3; \
+ JMP_(ENTRY_CODE(Sp[3]));
#else /* 0 Regs available */
-#define PUSH_P(o,x) Sp[-o] = (W_)(x)
-
-#ifdef DEBUG
-#define PUSH_N(o,x) Sp[1-o] = (W_)(x); Sp[-o] = ARG_TAG(1);
-#else
-#define PUSH_N(o,x) Sp[1-o] = (W_)(x);
-#endif
+#define PUSH(o,x) Sp[-o] = (W_)(x)
#define PUSHED(m) Sp -= (m); JMP_(ENTRY_CODE(Sp[m]));
-/* Here's how to construct these macros:
- *
- * N = number of N's in the name;
- * P = number of P's in the name;
- * s = N * 2 + P;
- * while (nonNull(name)) {
- * if (nextChar == 'P') {
- * PUSH_P(s,_);
- * s -= 1;
- * } else {
- * PUSH_N(s,_);
- * s -= 2
- * }
- * }
- * PUSHED(N * 2 + P);
- */
-
-# define RET_P(a) PUSH_P(1,a); PUSHED(1)
-# define RET_N(a) PUSH_N(2,a); PUSHED(2)
-
-# define RET_PP(a,b) PUSH_P(2,a); PUSH_P(1,b); PUSHED(2)
-# define RET_NN(a,b) PUSH_N(4,a); PUSH_N(2,b); PUSHED(4)
-# define RET_NP(a,b) PUSH_N(3,a); PUSH_P(1,b); PUSHED(3)
+# define RET_P(a) PUSH(1,a); PUSHED(1)
+# define RET_N(a) PUSH(1,a); PUSHED(2)
-# define RET_PPP(a,b,c) PUSH_P(3,a); PUSH_P(2,b); PUSH_P(1,c); PUSHED(3)
-# define RET_NNP(a,b,c) PUSH_N(5,a); PUSH_N(3,b); PUSH_P(1,c); PUSHED(5)
+# define RET_PP(a,b) PUSH(2,a); PUSH(1,b); PUSHED(2)
+# define RET_NN(a,b) PUSH(2,a); PUSH(1,b); PUSHED(2)
+# define RET_NP(a,b) PUSH(2,a); PUSH(1,b); PUSHED(2)
-# define RET_NNNP(a,b,c,d) PUSH_N(7,a); PUSH_N(5,b); PUSH_N(3,c); PUSH_P(1,d); PUSHED(7)
-# define RET_NPNP(a,b,c,d) PUSH_N(6,a); PUSH_P(4,b); PUSH_N(3,c); PUSH_P(1,d); PUSHED(6)
-# define RET_NNPNNP(a,b,c,d,e,f) PUSH_N(10,a); PUSH_N(8,b); PUSH_P(6,c); PUSH_N(5,d); PUSH_N(3,e); PUSH_P(1,f); PUSHED(10)
+# define RET_PPP(a,b,c) PUSH(3,a); PUSH(2,b); PUSH(1,c); PUSHED(3)
+# define RET_NNP(a,b,c) PUSH(3,a); PUSH(2,b); PUSH(1,c); PUSHED(3)
+# define RET_NNNP(a,b,c,d) PUSH(4,a); PUSH(3,b); PUSH(2,c); PUSH(1,d); PUSHED(4)
+# define RET_NPNP(a,b,c,d) PUSH(4,a); PUSH(3,c); PUSH(2,b); PUSH(1,d); PUSHED(4)
#endif
/*-----------------------------------------------------------------------------
/* Args: R1.p = initialisation value */
FB_
- HP_CHK_GEN_TICKY(sizeofW(StgMutVar), R1_PTR, newMutVarzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgMutVar), R1_PTR, newMutVarzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgHeader)+1,1, 0); /* hack, dependent on rep. */
CCS_ALLOC(CCCS,sizeofW(StgMutVar));
#define THUNK_SIZE(n) (sizeofW(StgHeader) + stg_max((n), MIN_UPD_SIZE))
#define SIZE (THUNK_SIZE(2) + THUNK_SIZE(1) + THUNK_SIZE(1))
- HP_CHK_GEN_TICKY(SIZE, R1_PTR|R2_PTR, atomicModifyMutVarzh_fast,);
+ HP_CHK_GEN_TICKY(SIZE, R1_PTR|R2_PTR, atomicModifyMutVarzh_fast);
CCS_ALLOC(CCCS,SIZE);
x = ((StgMutVar *)R1.cl)->var;
TICK_ALLOC_UP_THK(2,0); // XXX
z = (StgClosure *) Hp - THUNK_SIZE(2) + 1;
- SET_HDR(z, &stg_ap_2_upd_info, CCCS);
+ SET_HDR(z, (StgInfoTable *)&stg_ap_2_upd_info, CCCS);
z->payload[0] = R2.cl;
z->payload[1] = x;
StgForeignObj *result;
FB_
- HP_CHK_GEN_TICKY(sizeofW(StgForeignObj), NO_PTRS, mkForeignObjzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgForeignObj), NO_PTRS, mkForeignObjzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgHeader),
sizeofW(StgForeignObj)-sizeofW(StgHeader), 0);
CCS_ALLOC(CCCS,sizeofW(StgForeignObj)); /* ccs prof */
R3.cl = &stg_NO_FINALIZER_closure;
}
- HP_CHK_GEN_TICKY(sizeofW(StgWeak),R1_PTR|R2_PTR|R3_PTR, mkWeakzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgWeak),R1_PTR|R2_PTR|R3_PTR, mkWeakzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgHeader)+1, // +1 is for the link field
sizeofW(StgWeak)-sizeofW(StgHeader)-1, 0);
CCS_ALLOC(CCCS,sizeofW(StgWeak)); /* ccs prof */
FB_
val = R1.i;
- HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, int2Integerzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, int2Integerzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
FB_
val = R1.w;
- HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, word2Integerzh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, word2Integerzh_fast)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
/* minimum is one word */
words_needed = 1;
}
- HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, int64ToIntegerzh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, int64ToIntegerzh_fast)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),words_needed,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
} else {
words_needed = 1;
}
- HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, word64ToIntegerzh_fast,)
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+words_needed, NO_PTRS, word64ToIntegerzh_fast)
TICK_ALLOC_PRIM(sizeofW(StgArrWords),words_needed,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+words_needed); /* ccs prof */
/* arguments: F1 = Float# */
arg = F1;
- HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, decodeFloatzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgArrWords)+1, NO_PTRS, decodeFloatzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgArrWords),1,0);
CCS_ALLOC(CCCS,sizeofW(StgArrWords)+1); /* ccs prof */
/* arguments: D1 = Double# */
arg = D1;
- HP_CHK_GEN_TICKY(ARR_SIZE, NO_PTRS, decodeDoublezh_fast,);
+ HP_CHK_GEN_TICKY(ARR_SIZE, NO_PTRS, decodeDoublezh_fast);
TICK_ALLOC_PRIM(sizeofW(StgArrWords),DOUBLE_MANTISSA_SIZE,0);
CCS_ALLOC(CCCS,ARR_SIZE); /* ccs prof */
FB_
/* args: none */
- HP_CHK_GEN_TICKY(sizeofW(StgMVar), NO_PTRS, newMVarzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgMVar), NO_PTRS, newMVarzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgMutVar)-1, // consider head,tail,link as admin wds
1, 0);
CCS_ALLOC(CCCS,sizeofW(StgMVar)); /* ccs prof */
#define PerformPut(tso) ({ \
StgClosure *val = (StgClosure *)(tso)->sp[2]; \
- (tso)->sp[2] = (W_)&stg_gc_noregs_info; \
- (tso)->sp += 2; \
+ (tso)->sp += 3; \
val; \
})
StgStableName *sn_obj;
FB_
- HP_CHK_GEN_TICKY(sizeofW(StgStableName), R1_PTR, makeStableNamezh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgStableName), R1_PTR, makeStableNamezh_fast);
TICK_ALLOC_PRIM(sizeofW(StgHeader),
sizeofW(StgStableName)-sizeofW(StgHeader), 0);
CCS_ALLOC(CCCS,sizeofW(StgStableName)); /* ccs prof */
StgBCO *bco;
FB_
- HP_CHK_GEN_TICKY(sizeofW(StgBCO),R1_PTR|R2_PTR|R3_PTR|R4_PTR, newBCOzh_fast,);
+ HP_CHK_GEN_TICKY(sizeofW(StgBCO),R1_PTR|R2_PTR|R3_PTR|R4_PTR, newBCOzh_fast);
TICK_ALLOC_PRIM(sizeofW(StgHeader), sizeofW(StgBCO)-sizeofW(StgHeader), 0);
CCS_ALLOC(CCCS,sizeofW(StgBCO)); /* ccs prof */
bco = (StgBCO *) (Hp + 1 - sizeofW(StgBCO));
- SET_HDR(bco, &stg_BCO_info, CCCS);
+ SET_HDR(bco, (const StgInfoTable *)&stg_BCO_info, CCCS);
bco->instrs = (StgArrWords*)R1.cl;
bco->literals = (StgArrWords*)R2.cl;
FN_(mkApUpd0zh_fast)
{
- /* R1.p = the fn for the AP_UPD
- */
- StgAP_UPD* ap;
+ // R1.p = the BCO# for the AP
+ //
+ StgPAP* ap;
FB_
- HP_CHK_GEN_TICKY(AP_sizeW(0), R1_PTR, mkApUpd0zh_fast,);
- TICK_ALLOC_PRIM(sizeofW(StgHeader), AP_sizeW(0)-sizeofW(StgHeader), 0);
- CCS_ALLOC(CCCS,AP_sizeW(0)); /* ccs prof */
- ap = (StgAP_UPD *) (Hp + 1 - AP_sizeW(0));
- SET_HDR(ap, &stg_AP_UPD_info, CCCS);
+
+ // This function is *only* used to wrap zero-arity BCOs in an
+ // updatable wrapper (see ByteCodeLink.lhs). An AP thunk is always
+ // saturated and always points directly to a FUN or BCO.
+ ASSERT(get_itbl(R1.cl)->type == BCO && BCO_ARITY(R1.p) == 0);
+
+ HP_CHK_GEN_TICKY(PAP_sizeW(0), R1_PTR, mkApUpd0zh_fast);
+ TICK_ALLOC_PRIM(sizeofW(StgHeader), PAP_sizeW(0)-sizeofW(StgHeader), 0);
+ CCS_ALLOC(CCCS,PAP_sizeW(0)); /* ccs prof */
+ ap = (StgPAP *) (Hp + 1 - PAP_sizeW(0));
+ SET_HDR(ap, &stg_AP_info, CCCS);
ap->n_args = 0;
ap->fun = R1.cl;
projects / ghc-hetmet.git / blobdiff