"ptr" arr = foreign "C" allocateLocal(MyCapability() "ptr",words) [];
TICK_ALLOC_PRIM(SIZEOF_StgMutArrPtrs, WDS(n), 0);
- SET_HDR(arr, stg_MUT_ARR_PTRS_info, W_[CCCS]);
+ SET_HDR(arr, stg_MUT_ARR_PTRS_DIRTY_info, W_[CCCS]);
StgMutArrPtrs_ptrs(arr) = n;
// Initialise all elements of the the array with the value in R2
// multiple times during GC, which would be unnecessarily slow.
//
if (StgHeader_info(R1) != stg_MUT_ARR_PTRS_FROZEN0_info) {
- SET_INFO(R1,stg_MUT_ARR_PTRS_info);
+ SET_INFO(R1,stg_MUT_ARR_PTRS_DIRTY_info);
foreign "C" recordMutableLock(R1 "ptr") [R1];
// must be done after SET_INFO, because it ASSERTs closure_MUTABLE()
RET_P(R1);
} else {
- SET_INFO(R1,stg_MUT_ARR_PTRS_info);
+ SET_INFO(R1,stg_MUT_ARR_PTRS_DIRTY_info);
RET_P(R1);
}
}
ALLOC_PRIM( SIZEOF_StgMutVar, R1_PTR, newMutVarzh_fast);
mv = Hp - SIZEOF_StgMutVar + WDS(1);
- SET_HDR(mv,stg_MUT_VAR_info,W_[CCCS]);
+ SET_HDR(mv,stg_MUT_VAR_DIRTY_info,W_[CCCS]);
StgMutVar_var(mv) = R1;
RET_P(mv);
HP_CHK_GEN_TICKY(SIZE, R1_PTR & R2_PTR, atomicModifyMutVarzh_fast);
-#if defined(SMP)
- foreign "C" ACQUIRE_LOCK(sm_mutex "ptr");
+#if defined(THREADED_RTS)
+ foreign "C" ACQUIRE_LOCK(sm_mutex "ptr") [R1,R2];
#endif
x = StgMutVar_var(R1);
StgThunk_payload(y,0) = z;
StgMutVar_var(R1) = y;
+ foreign "C" dirty_MUT_VAR(BaseReg "ptr", R1 "ptr") [R1];
TICK_ALLOC_THUNK_1();
CCCS_ALLOC(THUNK_1_SIZE);
LDV_RECORD_CREATE(r);
StgThunk_payload(r,0) = z;
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" RELEASE_LOCK(sm_mutex "ptr") [];
#endif
/* ToDo: this is shockingly inefficient */
-#ifndef SMP
+#ifndef THREADED_RTS
section "bss" {
mp_tmp1:
bits8 [SIZEOF_MP_INT];
}
#endif
-#ifdef SMP
+#ifdef THREADED_RTS
#define FETCH_MP_TEMP(X) \
W_ X; \
X = BaseReg + (OFFSET_StgRegTable_r ## X);
GMP_TAKE2_RET2(quotRemIntegerzh_fast, mpz_tdiv_qr)
GMP_TAKE2_RET2(divModIntegerzh_fast, mpz_fdiv_qr)
-#ifndef SMP
+#ifndef THREADED_RTS
section "bss" {
mp_tmp_w: W_; // NB. mp_tmp_w is really an here mp_limb_t
}
#endif
#if defined(PROFILING)
-#define ATOMICALLY_FRAME_BITMAP 7
-#define ATOMICALLY_FRAME_WORDS 4
+#define ATOMICALLY_FRAME_BITMAP 3
+#define ATOMICALLY_FRAME_WORDS 3
#else
-#define ATOMICALLY_FRAME_BITMAP 1
-#define ATOMICALLY_FRAME_WORDS 2
+#define ATOMICALLY_FRAME_BITMAP 0
+#define ATOMICALLY_FRAME_WORDS 1
#endif
stg_atomically_frame_6_ret,
stg_atomically_frame_7_ret)
{
- W_ frame, trec, valid;
- IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
+ W_ frame, trec, valid;
+ IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
- frame = Sp;
- trec = StgTSO_trec(CurrentTSO);
- if (StgAtomicallyFrame_waiting(frame)) {
- /* The TSO is currently waiting: should we stop waiting? */
- valid = foreign "C" stmReWait(MyCapability() "ptr", CurrentTSO "ptr");
- if (valid) {
- /* Previous attempt is still valid: no point trying again yet */
+ frame = Sp;
+ trec = StgTSO_trec(CurrentTSO);
+
+ /* The TSO is not currently waiting: try to commit the transaction */
+ valid = foreign "C" stmCommitTransaction(MyCapability() "ptr", trec "ptr");
+ if (valid) {
+ /* Transaction was valid: commit succeeded */
+ StgTSO_trec(CurrentTSO) = NO_TREC;
+ Sp = Sp + SIZEOF_StgAtomicallyFrame;
+ IF_NOT_REG_R1(Sp_adj(-1); Sp(0) = rval;)
+ jump %ENTRY_CODE(Sp(SP_OFF));
+ } else {
+ /* Transaction was not valid: try again */
+ "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr");
+ StgTSO_trec(CurrentTSO) = trec;
+ R1 = StgAtomicallyFrame_code(frame);
+ Sp_adj(-1);
+ jump RET_LBL(stg_ap_v);
+ }
+}
+
+INFO_TABLE_RET(stg_atomically_waiting_frame,
+ ATOMICALLY_FRAME_WORDS, ATOMICALLY_FRAME_BITMAP,
+ ATOMICALLY_FRAME,
+ stg_atomically_frame_0_ret,
+ stg_atomically_frame_1_ret,
+ stg_atomically_frame_2_ret,
+ stg_atomically_frame_3_ret,
+ stg_atomically_frame_4_ret,
+ stg_atomically_frame_5_ret,
+ stg_atomically_frame_6_ret,
+ stg_atomically_frame_7_ret)
+{
+ W_ frame, trec, valid;
+ IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
+
+ frame = Sp;
+
+ /* The TSO is currently waiting: should we stop waiting? */
+ valid = foreign "C" stmReWait(MyCapability() "ptr", CurrentTSO "ptr");
+ if (valid) {
+ /* Previous attempt is still valid: no point trying again yet */
IF_NOT_REG_R1(Sp_adj(-2);
Sp(1) = stg_NO_FINALIZER_closure;
Sp(0) = stg_ut_1_0_unreg_info;)
- jump stg_block_noregs;
- } else {
- /* Previous attempt is no longer valid: try again */
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr");
- StgTSO_trec(CurrentTSO) = trec;
- StgAtomicallyFrame_waiting(frame) = 0 :: CInt; /* false; */
- R1 = StgAtomicallyFrame_code(frame);
- Sp_adj(-1);
- jump RET_LBL(stg_ap_v);
- }
- } else {
- /* The TSO is not currently waiting: try to commit the transaction */
- valid = foreign "C" stmCommitTransaction(MyCapability() "ptr", trec "ptr");
- if (valid) {
- /* Transaction was valid: commit succeeded */
- StgTSO_trec(CurrentTSO) = NO_TREC;
- Sp = Sp + SIZEOF_StgAtomicallyFrame;
- IF_NOT_REG_R1(Sp_adj(-1); Sp(0) = rval;)
- jump %ENTRY_CODE(Sp(SP_OFF));
- } else {
- /* Transaction was not valid: try again */
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr");
- StgTSO_trec(CurrentTSO) = trec;
- R1 = StgAtomicallyFrame_code(frame);
- Sp_adj(-1);
- jump RET_LBL(stg_ap_v);
- }
- }
+ jump stg_block_noregs;
+ } else {
+ /* Previous attempt is no longer valid: try again */
+ "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr");
+ StgTSO_trec(CurrentTSO) = trec;
+ StgHeader_info(frame) = stg_atomically_frame_info;
+ R1 = StgAtomicallyFrame_code(frame);
+ Sp_adj(-1);
+ jump RET_LBL(stg_ap_v);
+ }
}
-
// STM catch frame --------------------------------------------------------------
#define CATCH_STM_FRAME_ENTRY_TEMPLATE(label,ret) \
/* Args: R1 = m :: STM a */
STK_CHK_GEN(SIZEOF_StgAtomicallyFrame + WDS(1), R1_PTR, atomicallyzh_fast);
+ old_trec = StgTSO_trec(CurrentTSO);
+
+ /* Nested transactions are not allowed; raise an exception */
+ if (old_trec != NO_TREC) {
+ R1 = GHCziIOBase_NestedAtomically_closure;
+ jump raisezh_fast;
+ }
+
/* Set up the atomically frame */
Sp = Sp - SIZEOF_StgAtomicallyFrame;
frame = Sp;
SET_HDR(frame,stg_atomically_frame_info, W_[CCCS]);
- StgAtomicallyFrame_waiting(frame) = 0 :: CInt; // False
StgAtomicallyFrame_code(frame) = R1;
/* Start the memory transcation */
- old_trec = StgTSO_trec(CurrentTSO);
- ASSERT(old_trec == NO_TREC);
"ptr" new_trec = foreign "C" stmStartTransaction(MyCapability() "ptr", old_trec "ptr");
StgTSO_trec(CurrentTSO) = new_trec;
r = foreign "C" stmWait(MyCapability() "ptr", CurrentTSO "ptr", trec "ptr");
if (r) {
// Transaction was valid: stmWait put us on the TVars' queues, we now block
- StgAtomicallyFrame_waiting(frame) = 1 :: CInt; // true
+ StgHeader_info(frame) = stg_atomically_waiting_frame_info;
Sp = frame;
// Fix up the stack in the unregisterised case: the return convention is different.
IF_NOT_REG_R1(Sp_adj(-2);
/* args: R1 = MVar closure */
mvar = R1;
-#if defined(SMP)
+#if defined(THREADED_RTS)
"ptr" info = foreign "C" lockClosure(mvar "ptr");
#else
info = GET_INFO(mvar);
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
}
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info);
#endif
RET_P(val);
/* No further putMVars, MVar is now empty */
StgMVar_value(mvar) = stg_END_TSO_QUEUE_closure;
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info);
#else
SET_INFO(mvar,stg_EMPTY_MVAR_info);
mvar = R1;
-#if defined(SMP)
+#if defined(THREADED_RTS)
"ptr" info = foreign "C" lockClosure(mvar "ptr");
#else
info = GET_INFO(mvar);
#endif
if (info == stg_EMPTY_MVAR_info) {
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info);
#endif
/* HACK: we need a pointer to pass back,
if (StgMVar_head(mvar) == stg_END_TSO_QUEUE_closure) {
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
}
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info);
#endif
}
{
/* No further putMVars, MVar is now empty */
StgMVar_value(mvar) = stg_END_TSO_QUEUE_closure;
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info);
#else
SET_INFO(mvar,stg_EMPTY_MVAR_info);
/* args: R1 = MVar, R2 = value */
mvar = R1;
-#if defined(SMP)
+#if defined(THREADED_RTS)
"ptr" info = foreign "C" lockClosure(mvar "ptr");
#else
info = GET_INFO(mvar);
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
}
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info);
#endif
jump %ENTRY_CODE(Sp(0));
/* No further takes, the MVar is now full. */
StgMVar_value(mvar) = R2;
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info);
#else
SET_INFO(mvar,stg_FULL_MVAR_info);
/* args: R1 = MVar, R2 = value */
mvar = R1;
-#if defined(SMP)
+#if defined(THREADED_RTS)
"ptr" info = foreign "C" lockClosure(mvar "ptr");
#else
info = GET_INFO(mvar);
#endif
if (info == stg_FULL_MVAR_info) {
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info);
#endif
RET_N(0);
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
}
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info);
#endif
- jump %ENTRY_CODE(Sp(0));
}
else
{
/* No further takes, the MVar is now full. */
StgMVar_value(mvar) = R2;
-#if defined(SMP)
+#if defined(THREADED_RTS)
foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info);
#else
SET_INFO(mvar,stg_FULL_MVAR_info);
#endif
- jump %ENTRY_CODE(Sp(0));
}
+ RET_N(1);
/* ToDo: yield afterward for better communication performance? */
}
projects / ghc-hetmet.git / blobdiff