#include "Cmm.h"
+#ifdef __PIC__
+import __gmpz_init;
+import __gmpz_add;
+import __gmpz_sub;
+import __gmpz_mul;
+import __gmpz_gcd;
+import __gmpn_gcd_1;
+import __gmpn_cmp;
+import __gmpz_tdiv_q;
+import __gmpz_tdiv_r;
+import __gmpz_tdiv_qr;
+import __gmpz_fdiv_qr;
+import __gmpz_divexact;
+import __gmpz_and;
+import __gmpz_xor;
+import __gmpz_ior;
+import __gmpz_com;
+import base_GHCziIOBase_NestedAtomically_closure;
+import pthread_mutex_lock;
+import pthread_mutex_unlock;
+#endif
+import EnterCriticalSection;
+import LeaveCriticalSection;
+
/*-----------------------------------------------------------------------------
Array Primitives
n = R1;
payload_words = ROUNDUP_BYTES_TO_WDS(n);
words = BYTES_TO_WDS(SIZEOF_StgArrWords) + payload_words;
- "ptr" p = foreign "C" allocateLocal(MyCapability() "ptr",words) [];
+ ("ptr" p) = foreign "C" allocateLocal(MyCapability() "ptr",words) [];
TICK_ALLOC_PRIM(SIZEOF_StgArrWords,WDS(payload_words),0);
SET_HDR(p, stg_ARR_WORDS_info, W_[CCCS]);
StgArrWords_words(p) = payload_words;
words = words + 1;
}
- "ptr" p = foreign "C" allocatePinned(words) [];
+ ("ptr" p) = foreign "C" allocatePinned(words) [];
TICK_ALLOC_PRIM(SIZEOF_StgArrWords,WDS(payload_words),0);
// Again, if the ArrWords header isn't a multiple of 8 bytes, we
MAYBE_GC(R2_PTR,newArrayzh_fast);
words = BYTES_TO_WDS(SIZEOF_StgMutArrPtrs) + n;
- "ptr" arr = foreign "C" allocateLocal(MyCapability() "ptr",words) [R2];
+ ("ptr" arr) = foreign "C" allocateLocal(MyCapability() "ptr",words) [R2];
TICK_ALLOC_PRIM(SIZEOF_StgMutArrPtrs, WDS(n), 0);
SET_HDR(arr, stg_MUT_ARR_PTRS_DIRTY_info, W_[CCCS]);
HP_CHK_GEN_TICKY(SIZE, R1_PTR & R2_PTR, atomicModifyMutVarzh_fast);
#if defined(THREADED_RTS)
- foreign "C" ACQUIRE_LOCK(atomic_modify_mutvar_mutex "ptr") [R1,R2];
+ ACQUIRE_LOCK(atomic_modify_mutvar_mutex "ptr") [R1,R2];
#endif
x = StgMutVar_var(R1);
StgThunk_payload(r,0) = z;
#if defined(THREADED_RTS)
- foreign "C" RELEASE_LOCK(atomic_modify_mutvar_mutex "ptr") [];
+ RELEASE_LOCK(atomic_modify_mutvar_mutex "ptr") [];
#endif
RET_P(r);
/* arguments: L1 = Int64# */
L_ val;
- W_ hi, s, neg, words_needed, p;
+ W_ hi, lo, s, neg, words_needed, p;
val = L1;
neg = 0;
- if ( %ge(val,0x100000000::L_) || %le(val,-0x100000000::L_) ) {
+ hi = TO_W_(val >> 32);
+ lo = TO_W_(val);
+
+ if ( hi != 0 && hi != 0xFFFFFFFF ) {
words_needed = 2;
} else {
// minimum is one word
SET_HDR(p, stg_ARR_WORDS_info, W_[CCCS]);
StgArrWords_words(p) = words_needed;
- if ( %lt(val,0::L_) ) {
+ if ( %lt(hi,0) ) {
neg = 1;
- val = -val;
+ lo = -lo;
+ if(lo == 0) {
+ hi = -hi;
+ } else {
+ hi = -hi - 1;
+ }
}
- hi = TO_W_(val >> 32);
-
if ( words_needed == 2 ) {
s = 2;
- Hp(-1) = TO_W_(val);
+ Hp(-1) = lo;
Hp(0) = hi;
} else {
- if ( val != 0::L_ ) {
+ if ( lo != 0 ) {
s = 1;
- Hp(0) = TO_W_(val);
+ Hp(0) = lo;
} else /* val==0 */ {
s = 0;
}
*/
RET_NP(s,p);
}
-
word64ToIntegerzh_fast
{
/* arguments: L1 = Word64# */
L_ val;
- W_ hi, s, words_needed, p;
+ W_ hi, lo, s, words_needed, p;
val = L1;
- if ( val >= 0x100000000::L_ ) {
+ hi = TO_W_(val >> 32);
+ lo = TO_W_(val);
+
+ if ( hi != 0 ) {
words_needed = 2;
} else {
words_needed = 1;
SET_HDR(p, stg_ARR_WORDS_info, W_[CCCS]);
StgArrWords_words(p) = words_needed;
- hi = TO_W_(val >> 32);
- if ( val >= 0x100000000::L_ ) {
+ if ( hi != 0 ) {
s = 2;
- Hp(-1) = TO_W_(val);
+ Hp(-1) = lo;
Hp(0) = hi;
} else {
- if ( val != 0::L_ ) {
+ if ( lo != 0 ) {
s = 1;
- Hp(0) = TO_W_(val);
+ Hp(0) = lo;
} else /* val==0 */ {
s = 0;
}
}
+
#endif /* SUPPORT_LONG_LONGS */
/* ToDo: this is shockingly inefficient */
FETCH_MP_TEMP(mp_tmp_w);
W_[mp_tmp_w] = R1;
- r = foreign "C" __gmpn_gcd_1(mp_tmp_w "ptr", 1, R2) [];
+ (r) = foreign "C" __gmpn_gcd_1(mp_tmp_w "ptr", 1, R2) [];
R1 = r;
/* Result parked in R1, return via info-pointer at TOS */
gcdIntegerIntzh_fast
{
/* R1 = s1; R2 = d1; R3 = the int */
- R1 = foreign "C" __gmpn_gcd_1( BYTE_ARR_CTS(R2) "ptr", R1, R3) [];
+ W_ s1;
+ (s1) = foreign "C" __gmpn_gcd_1( BYTE_ARR_CTS(R2) "ptr", R1, R3) [];
+ R1 = s1;
/* Result parked in R1, return via info-pointer at TOS */
jump %ENTRY_CODE(Sp(0));
up = BYTE_ARR_CTS(R2);
vp = BYTE_ARR_CTS(R4);
- cmp = foreign "C" __gmpn_cmp(up "ptr", vp "ptr", size) [];
+ (cmp) = foreign "C" __gmpn_cmp(up "ptr", vp "ptr", size) [];
if (cmp == 0 :: CInt) {
R1 = 0;
W_ threadid;
closure = R1;
- "ptr" threadid = foreign "C" createIOThread( MyCapability() "ptr",
+ ("ptr" threadid) = foreign "C" createIOThread( MyCapability() "ptr",
RtsFlags_GcFlags_initialStkSize(RtsFlags),
closure "ptr") [];
foreign "C" scheduleThread(MyCapability() "ptr", threadid "ptr") [];
cpu = R1;
closure = R2;
- "ptr" threadid = foreign "C" createIOThread( MyCapability() "ptr",
+ ("ptr" threadid) = foreign "C" createIOThread( MyCapability() "ptr",
RtsFlags_GcFlags_initialStkSize(RtsFlags),
closure "ptr") [];
foreign "C" scheduleThreadOn(MyCapability() "ptr", cpu, threadid "ptr") [];
{
/* no args */
W_ r;
- r = foreign "C" isThreadBound(CurrentTSO) [];
+ (r) = foreign "C" isThreadBound(CurrentTSO) [];
RET_N(r);
}
// Catch retry frame ------------------------------------------------------------
-#define CATCH_RETRY_FRAME_ERROR(label) \
- label { foreign "C" barf("catch_retry_frame incorrectly entered!"); }
-
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_0_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_1_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_2_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_3_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_4_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_5_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_6_ret)
-CATCH_RETRY_FRAME_ERROR(stg_catch_retry_frame_7_ret)
-
-#if MAX_VECTORED_RTN > 8
-#error MAX_VECTORED_RTN has changed: please modify stg_catch_retry_frame too.
-#endif
-
+INFO_TABLE_RET(stg_catch_retry_frame, CATCH_RETRY_FRAME,
#if defined(PROFILING)
-#define CATCH_RETRY_FRAME_BITMAP 7
-#define CATCH_RETRY_FRAME_WORDS 6
-#else
-#define CATCH_RETRY_FRAME_BITMAP 1
-#define CATCH_RETRY_FRAME_WORDS 4
+ W_ unused1, W_ unused2,
#endif
-
-INFO_TABLE_RET(stg_catch_retry_frame,
- CATCH_RETRY_FRAME_WORDS, CATCH_RETRY_FRAME_BITMAP,
- CATCH_RETRY_FRAME,
- stg_catch_retry_frame_0_ret,
- stg_catch_retry_frame_1_ret,
- stg_catch_retry_frame_2_ret,
- stg_catch_retry_frame_3_ret,
- stg_catch_retry_frame_4_ret,
- stg_catch_retry_frame_5_ret,
- stg_catch_retry_frame_6_ret,
- stg_catch_retry_frame_7_ret)
+ W_ unused3, "ptr" W_ unused4, "ptr" W_ unused5)
{
W_ r, frame, trec, outer;
IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
frame = Sp;
trec = StgTSO_trec(CurrentTSO);
- "ptr" outer = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
- r = foreign "C" stmCommitNestedTransaction(MyCapability() "ptr", trec "ptr") [];
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+ (r) = foreign "C" stmCommitNestedTransaction(MyCapability() "ptr", trec "ptr") [];
if (r != 0) {
/* Succeeded (either first branch or second branch) */
StgTSO_trec(CurrentTSO) = outer;
IF_NOT_REG_R1(Sp_adj(-1); Sp(0) = rval;)
jump %ENTRY_CODE(Sp(SP_OFF));
} else {
- /* Did not commit: retry */
+ /* Did not commit: re-execute */
W_ new_trec;
- "ptr" new_trec = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
+ ("ptr" new_trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
StgTSO_trec(CurrentTSO) = new_trec;
if (StgCatchRetryFrame_running_alt_code(frame) != 0::I32) {
R1 = StgCatchRetryFrame_alt_code(frame);
} else {
R1 = StgCatchRetryFrame_first_code(frame);
- StgCatchRetryFrame_first_code_trec(frame) = new_trec;
}
jump stg_ap_v_fast;
}
}
-// Atomically frame -------------------------------------------------------------
-
-
-#define ATOMICALLY_FRAME_ERROR(label) \
- label { foreign "C" barf("atomically_frame incorrectly entered!"); }
-
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_0_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_1_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_2_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_3_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_4_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_5_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_6_ret)
-ATOMICALLY_FRAME_ERROR(stg_atomically_frame_7_ret)
-
-#if MAX_VECTORED_RTN > 8
-#error MAX_VECTORED_RTN has changed: please modify stg_atomically_frame too.
-#endif
+// Atomically frame ------------------------------------------------------------
+INFO_TABLE_RET(stg_atomically_frame, ATOMICALLY_FRAME,
#if defined(PROFILING)
-#define ATOMICALLY_FRAME_BITMAP 3
-#define ATOMICALLY_FRAME_WORDS 3
-#else
-#define ATOMICALLY_FRAME_BITMAP 0
-#define ATOMICALLY_FRAME_WORDS 1
+ W_ unused1, W_ unused2,
#endif
-
-
-INFO_TABLE_RET(stg_atomically_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)
+ "ptr" W_ unused3, "ptr" W_ unused4)
{
- W_ frame, trec, valid;
+ W_ frame, trec, valid, next_invariant, q, outer;
IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
frame = Sp;
trec = StgTSO_trec(CurrentTSO);
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+
+ if (outer == NO_TREC) {
+ /* First time back at the atomically frame -- pick up invariants */
+ ("ptr" q) = foreign "C" stmGetInvariantsToCheck(MyCapability() "ptr", trec "ptr") [];
+ StgAtomicallyFrame_next_invariant_to_check(frame) = q;
- /* The TSO is not currently waiting: try to commit the transaction */
- valid = foreign "C" stmCommitTransaction(MyCapability() "ptr", trec "ptr") [];
- if (valid != 0) {
- /* 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") [];
+ /* Second/subsequent time back at the atomically frame -- abort the
+ * tx that's checking the invariant and move on to the next one */
+ StgTSO_trec(CurrentTSO) = outer;
+ q = StgAtomicallyFrame_next_invariant_to_check(frame);
+ StgInvariantCheckQueue_my_execution(q) = trec;
+ foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
+ /* Don't free trec -- it's linked from q and will be stashed in the
+ * invariant if we eventually commit. */
+ q = StgInvariantCheckQueue_next_queue_entry(q);
+ StgAtomicallyFrame_next_invariant_to_check(frame) = q;
+ trec = outer;
+ }
+
+ q = StgAtomicallyFrame_next_invariant_to_check(frame);
+
+ if (q != END_INVARIANT_CHECK_QUEUE) {
+ /* We can't commit yet: another invariant to check */
+ ("ptr" trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", trec "ptr") [];
StgTSO_trec(CurrentTSO) = trec;
- R1 = StgAtomicallyFrame_code(frame);
+
+ next_invariant = StgInvariantCheckQueue_invariant(q);
+ R1 = StgAtomicInvariant_code(next_invariant);
jump stg_ap_v_fast;
+
+ } else {
+
+ /* We've got no more invariants to check, try to commit */
+ (valid) = foreign "C" stmCommitTransaction(MyCapability() "ptr", trec "ptr") [];
+ if (valid != 0) {
+ /* 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;
+ StgAtomicallyFrame_next_invariant_to_check(frame) = END_INVARIANT_CHECK_QUEUE;
+ R1 = StgAtomicallyFrame_code(frame);
+ jump stg_ap_v_fast;
+ }
}
}
-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)
+INFO_TABLE_RET(stg_atomically_waiting_frame, ATOMICALLY_FRAME,
+#if defined(PROFILING)
+ W_ unused1, W_ unused2,
+#endif
+ "ptr" W_ unused3, "ptr" W_ unused4)
{
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") [];
+ (valid) = foreign "C" stmReWait(MyCapability() "ptr", CurrentTSO "ptr") [];
if (valid != 0) {
/* Previous attempt is still valid: no point trying again yet */
IF_NOT_REG_R1(Sp_adj(-2);
jump stg_block_noregs;
} else {
/* Previous attempt is no longer valid: try again */
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr") [];
+ ("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);
// STM catch frame --------------------------------------------------------------
-#define CATCH_STM_FRAME_ENTRY_TEMPLATE(label,ret) \
- label \
- { \
- IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); ) \
- Sp = Sp + SIZEOF_StgCatchSTMFrame; \
- IF_NOT_REG_R1(Sp_adj(-1); Sp(0) = rval;) \
- jump ret; \
- }
-
#ifdef REG_R1
#define SP_OFF 0
#else
#define SP_OFF 1
#endif
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_0_ret,%RET_VEC(Sp(SP_OFF),0))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_1_ret,%RET_VEC(Sp(SP_OFF),1))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_2_ret,%RET_VEC(Sp(SP_OFF),2))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_3_ret,%RET_VEC(Sp(SP_OFF),3))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_4_ret,%RET_VEC(Sp(SP_OFF),4))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_5_ret,%RET_VEC(Sp(SP_OFF),5))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_6_ret,%RET_VEC(Sp(SP_OFF),6))
-CATCH_STM_FRAME_ENTRY_TEMPLATE(stg_catch_stm_frame_7_ret,%RET_VEC(Sp(SP_OFF),7))
-
-#if MAX_VECTORED_RTN > 8
-#error MAX_VECTORED_RTN has changed: please modify stg_catch_stm_frame too.
-#endif
-
-#if defined(PROFILING)
-#define CATCH_STM_FRAME_BITMAP 3
-#define CATCH_STM_FRAME_WORDS 3
-#else
-#define CATCH_STM_FRAME_BITMAP 0
-#define CATCH_STM_FRAME_WORDS 1
-#endif
-
/* Catch frames are very similar to update frames, but when entering
* one we just pop the frame off the stack and perform the correct
* kind of return to the activation record underneath us on the stack.
*/
-INFO_TABLE_RET(stg_catch_stm_frame,
- CATCH_STM_FRAME_WORDS, CATCH_STM_FRAME_BITMAP,
- CATCH_STM_FRAME,
- stg_catch_stm_frame_0_ret,
- stg_catch_stm_frame_1_ret,
- stg_catch_stm_frame_2_ret,
- stg_catch_stm_frame_3_ret,
- stg_catch_stm_frame_4_ret,
- stg_catch_stm_frame_5_ret,
- stg_catch_stm_frame_6_ret,
- stg_catch_stm_frame_7_ret)
-CATCH_STM_FRAME_ENTRY_TEMPLATE(,%ENTRY_CODE(Sp(SP_OFF)))
+INFO_TABLE_RET(stg_catch_stm_frame, CATCH_STM_FRAME,
+#if defined(PROFILING)
+ W_ unused1, W_ unused2,
+#endif
+ "ptr" W_ unused3, "ptr" W_ unused4)
+ {
+ IF_NOT_REG_R1(W_ rval; rval = Sp(0); Sp_adj(1); )
+ W_ r, frame, trec, outer;
+ frame = Sp;
+ trec = StgTSO_trec(CurrentTSO);
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+ (r) = foreign "C" stmCommitNestedTransaction(MyCapability() "ptr", trec "ptr") [];
+ if (r != 0) {
+ /* Commit succeeded */
+ StgTSO_trec(CurrentTSO) = outer;
+ Sp = Sp + SIZEOF_StgCatchSTMFrame;
+ IF_NOT_REG_R1(Sp_adj(-1); Sp(0) = rval;)
+ jump Sp(SP_OFF);
+ } else {
+ /* Commit failed */
+ W_ new_trec;
+ ("ptr" new_trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
+ StgTSO_trec(CurrentTSO) = new_trec;
+ R1 = StgCatchSTMFrame_code(frame);
+ jump stg_ap_v_fast;
+ }
+ }
// Primop definition ------------------------------------------------------------
SET_HDR(frame,stg_atomically_frame_info, W_[CCCS]);
StgAtomicallyFrame_code(frame) = R1;
+ StgAtomicallyFrame_next_invariant_to_check(frame) = END_INVARIANT_CHECK_QUEUE;
/* Start the memory transcation */
- "ptr" new_trec = foreign "C" stmStartTransaction(MyCapability() "ptr", old_trec "ptr") [R1];
+ ("ptr" new_trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", old_trec "ptr") [R1];
StgTSO_trec(CurrentTSO) = new_trec;
/* Apply R1 to the realworld token */
SET_HDR(frame, stg_catch_stm_frame_info, W_[CCCS]);
StgCatchSTMFrame_handler(frame) = R2;
+ StgCatchSTMFrame_code(frame) = R1;
+
+ /* Start a nested transaction to run the body of the try block in */
+ W_ cur_trec;
+ W_ new_trec;
+ cur_trec = StgTSO_trec(CurrentTSO);
+ ("ptr" new_trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", cur_trec "ptr");
+ StgTSO_trec(CurrentTSO) = new_trec;
/* Apply R1 to the realworld token */
jump stg_ap_v_fast;
/* Start a nested transaction within which to run the first code */
trec = StgTSO_trec(CurrentTSO);
- "ptr" new_trec = foreign "C" stmStartTransaction(MyCapability() "ptr", trec "ptr") [R1,R2];
+ ("ptr" new_trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", trec "ptr") [R1,R2];
StgTSO_trec(CurrentTSO) = new_trec;
/* Set up the catch-retry frame */
StgCatchRetryFrame_running_alt_code(frame) = 0 :: CInt; // false;
StgCatchRetryFrame_first_code(frame) = R1;
StgCatchRetryFrame_alt_code(frame) = R2;
- StgCatchRetryFrame_first_code_trec(frame) = new_trec;
/* Apply R1 to the realworld token */
jump stg_ap_v_fast;
// Find the enclosing ATOMICALLY_FRAME or CATCH_RETRY_FRAME
retry_pop_stack:
- trec = StgTSO_trec(CurrentTSO);
- "ptr" outer = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
StgTSO_sp(CurrentTSO) = Sp;
- frame_type = foreign "C" findRetryFrameHelper(CurrentTSO "ptr") [];
+ (frame_type) = foreign "C" findRetryFrameHelper(CurrentTSO "ptr") [];
Sp = StgTSO_sp(CurrentTSO);
frame = Sp;
+ trec = StgTSO_trec(CurrentTSO);
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
if (frame_type == CATCH_RETRY_FRAME) {
// The retry reaches a CATCH_RETRY_FRAME before the atomic frame
ASSERT(outer != NO_TREC);
+ // Abort the transaction attempting the current branch
+ foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
+ foreign "C" stmFreeAbortedTRec(MyCapability() "ptr", trec "ptr") [];
if (!StgCatchRetryFrame_running_alt_code(frame) != 0::I32) {
- // Retry in the first code: try the alternative
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
+ // Retry in the first branch: try the alternative
+ ("ptr" trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
StgTSO_trec(CurrentTSO) = trec;
StgCatchRetryFrame_running_alt_code(frame) = 1 :: CInt; // true;
R1 = StgCatchRetryFrame_alt_code(frame);
jump stg_ap_v_fast;
} else {
- // Retry in the alternative code: propagate
- W_ other_trec;
- other_trec = StgCatchRetryFrame_first_code_trec(frame);
- r = foreign "C" stmCommitNestedTransaction(MyCapability() "ptr", other_trec "ptr") [];
- if (r != 0) {
- r = foreign "C" stmCommitNestedTransaction(MyCapability() "ptr", trec "ptr") [];
- } else {
- foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
- }
- if (r != 0) {
- // Merge between siblings succeeded: commit it back to enclosing transaction
- // and then propagate the retry
- StgTSO_trec(CurrentTSO) = outer;
- Sp = Sp + SIZEOF_StgCatchRetryFrame;
- goto retry_pop_stack;
- } else {
- // Merge failed: we musn't propagate the retry. Try both paths again.
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
- StgCatchRetryFrame_first_code_trec(frame) = trec;
- StgCatchRetryFrame_running_alt_code(frame) = 0 :: CInt; // false;
- StgTSO_trec(CurrentTSO) = trec;
- R1 = StgCatchRetryFrame_first_code(frame);
- jump stg_ap_v_fast;
- }
+ // Retry in the alternative code: propagate the retry
+ StgTSO_trec(CurrentTSO) = outer;
+ Sp = Sp + SIZEOF_StgCatchRetryFrame;
+ goto retry_pop_stack;
}
}
// We've reached the ATOMICALLY_FRAME: attempt to wait
ASSERT(frame_type == ATOMICALLY_FRAME);
+ if (outer != NO_TREC) {
+ // We called retry while checking invariants, so abort the current
+ // invariant check (merging its TVar accesses into the parents read
+ // set so we'll wait on them)
+ foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
+ foreign "C" stmFreeAbortedTRec(MyCapability() "ptr", trec "ptr") [];
+ trec = outer;
+ StgTSO_trec(CurrentTSO) = trec;
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+ }
ASSERT(outer == NO_TREC);
- r = foreign "C" stmWait(MyCapability() "ptr", CurrentTSO "ptr", trec "ptr") [];
+
+ (r) = foreign "C" stmWait(MyCapability() "ptr", CurrentTSO "ptr", trec "ptr") [];
if (r != 0) {
// Transaction was valid: stmWait put us on the TVars' queues, we now block
StgHeader_info(frame) = stg_atomically_waiting_frame_info;
jump stg_block_stmwait;
} else {
// Transaction was not valid: retry immediately
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
+ ("ptr" trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", outer "ptr") [];
StgTSO_trec(CurrentTSO) = trec;
R1 = StgAtomicallyFrame_code(frame);
Sp = frame;
}
+checkzh_fast
+{
+ W_ trec, closure;
+
+ /* Args: R1 = invariant closure */
+ MAYBE_GC (R1_PTR, checkzh_fast);
+
+ trec = StgTSO_trec(CurrentTSO);
+ closure = R1;
+ foreign "C" stmAddInvariantToCheck(MyCapability() "ptr",
+ trec "ptr",
+ closure "ptr") [];
+
+ jump %ENTRY_CODE(Sp(0));
+}
+
+
newTVarzh_fast
{
W_ tv;
MAYBE_GC (R1_PTR, newTVarzh_fast);
new_value = R1;
- "ptr" tv = foreign "C" stmNewTVar(MyCapability() "ptr", new_value "ptr") [];
+ ("ptr" tv) = foreign "C" stmNewTVar(MyCapability() "ptr", new_value "ptr") [];
RET_P(tv);
}
MAYBE_GC (R1_PTR, readTVarzh_fast); // Call to stmReadTVar may allocate
trec = StgTSO_trec(CurrentTSO);
tvar = R1;
- "ptr" result = foreign "C" stmReadTVar(MyCapability() "ptr", trec "ptr", tvar "ptr") [];
+ ("ptr" result) = foreign "C" stmReadTVar(MyCapability() "ptr", trec "ptr", tvar "ptr") [];
RET_P(result);
}
{
/* args: R1 = MVar closure */
- if (GET_INFO(R1) == stg_EMPTY_MVAR_info) {
+ if (StgMVar_value(R1) == stg_END_TSO_QUEUE_closure) {
RET_N(1);
} else {
RET_N(0);
ALLOC_PRIM ( SIZEOF_StgMVar, NO_PTRS, newMVarzh_fast );
mvar = Hp - SIZEOF_StgMVar + WDS(1);
- SET_HDR(mvar,stg_EMPTY_MVAR_info,W_[CCCS]);
+ SET_HDR(mvar,stg_MVAR_DIRTY_info,W_[CCCS]);
+ // MVARs start dirty: generation 0 has no mutable list
StgMVar_head(mvar) = stg_END_TSO_QUEUE_closure;
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
StgMVar_value(mvar) = stg_END_TSO_QUEUE_closure;
mvar = R1;
#if defined(THREADED_RTS)
- "ptr" info = foreign "C" lockClosure(mvar "ptr") [];
+ ("ptr" info) = foreign "C" lockClosure(mvar "ptr") [];
#else
info = GET_INFO(mvar);
#endif
+
+ if (info == stg_MVAR_CLEAN_info) {
+ foreign "C" dirty_MVAR(BaseReg "ptr", mvar);
+ }
/* If the MVar is empty, put ourselves on its blocking queue,
* and wait until we're woken up.
*/
- if (info == stg_EMPTY_MVAR_info) {
+ if (StgMVar_value(mvar) == stg_END_TSO_QUEUE_closure) {
if (StgMVar_head(mvar) == stg_END_TSO_QUEUE_closure) {
StgMVar_head(mvar) = CurrentTSO;
} else {
#if defined(GRAN) || defined(PAR)
/* ToDo: check 2nd arg (mvar) is right */
- "ptr" tso = foreign "C" unblockOne(StgMVar_head(mvar),mvar) [];
+ ("ptr" tso) = foreign "C" unblockOne(StgMVar_head(mvar),mvar) [];
StgMVar_head(mvar) = tso;
#else
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr",
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr",
StgMVar_head(mvar) "ptr") [];
StgMVar_head(mvar) = tso;
#endif
}
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
+#else
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
RET_P(val);
}
StgMVar_value(mvar) = stg_END_TSO_QUEUE_closure;
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
#else
- SET_INFO(mvar,stg_EMPTY_MVAR_info);
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
RET_P(val);
mvar = R1;
#if defined(THREADED_RTS)
- "ptr" info = foreign "C" lockClosure(mvar "ptr") [];
+ ("ptr" info) = foreign "C" lockClosure(mvar "ptr") [];
#else
info = GET_INFO(mvar);
#endif
- if (info == stg_EMPTY_MVAR_info) {
+ if (StgMVar_value(mvar) == stg_END_TSO_QUEUE_closure) {
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info) [];
+ unlockClosure(mvar, info);
#endif
/* HACK: we need a pointer to pass back,
* so we abuse NO_FINALIZER_closure
RET_NP(0, stg_NO_FINALIZER_closure);
}
+ if (info == stg_MVAR_CLEAN_info) {
+ foreign "C" dirty_MVAR(BaseReg "ptr", mvar);
+ }
+
/* we got the value... */
val = StgMVar_value(mvar);
#if defined(GRAN) || defined(PAR)
/* ToDo: check 2nd arg (mvar) is right */
- "ptr" tso = foreign "C" unblockOne(StgMVar_head(mvar) "ptr", mvar "ptr") [];
+ ("ptr" tso) = foreign "C" unblockOne(StgMVar_head(mvar) "ptr", mvar "ptr") [];
StgMVar_head(mvar) = tso;
#else
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr",
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr",
StgMVar_head(mvar) "ptr") [];
StgMVar_head(mvar) = tso;
#endif
StgMVar_tail(mvar) = stg_END_TSO_QUEUE_closure;
}
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
+#else
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
}
else
/* No further putMVars, MVar is now empty */
StgMVar_value(mvar) = stg_END_TSO_QUEUE_closure;
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
#else
- SET_INFO(mvar,stg_EMPTY_MVAR_info);
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
}
mvar = R1;
#if defined(THREADED_RTS)
- "ptr" info = foreign "C" lockClosure(mvar "ptr") [R2];
+ ("ptr" info) = foreign "C" lockClosure(mvar "ptr") [R2];
#else
info = GET_INFO(mvar);
#endif
- if (info == stg_FULL_MVAR_info) {
+ if (info == stg_MVAR_CLEAN_info) {
+ foreign "C" dirty_MVAR(BaseReg "ptr", mvar);
+ }
+
+ if (StgMVar_value(mvar) != stg_END_TSO_QUEUE_closure) {
if (StgMVar_head(mvar) == stg_END_TSO_QUEUE_closure) {
StgMVar_head(mvar) = CurrentTSO;
} else {
#if defined(GRAN) || defined(PAR)
/* ToDo: check 2nd arg (mvar) is right */
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr",mvar "ptr") [];
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr",mvar "ptr") [];
StgMVar_head(mvar) = tso;
#else
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr") [];
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr") [];
StgMVar_head(mvar) = tso;
#endif
}
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
+#else
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
jump %ENTRY_CODE(Sp(0));
}
StgMVar_value(mvar) = R2;
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
#else
- SET_INFO(mvar,stg_FULL_MVAR_info);
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
jump %ENTRY_CODE(Sp(0));
}
mvar = R1;
#if defined(THREADED_RTS)
- "ptr" info = foreign "C" lockClosure(mvar "ptr") [R2];
+ ("ptr" info) = foreign "C" lockClosure(mvar "ptr") [R2];
#else
info = GET_INFO(mvar);
#endif
- if (info == stg_FULL_MVAR_info) {
+ if (StgMVar_value(mvar) != stg_END_TSO_QUEUE_closure) {
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info) [];
+ unlockClosure(mvar, info);
#endif
RET_N(0);
}
+ if (info == stg_MVAR_CLEAN_info) {
+ foreign "C" dirty_MVAR(BaseReg "ptr", mvar);
+ }
+
if (StgMVar_head(mvar) != stg_END_TSO_QUEUE_closure) {
/* There are takeMVar(s) waiting: wake up the first one
#if defined(GRAN) || defined(PAR)
/* ToDo: check 2nd arg (mvar) is right */
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr",mvar "ptr") [];
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr",mvar "ptr") [];
StgMVar_head(mvar) = tso;
#else
- "ptr" tso = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr") [];
+ ("ptr" tso) = foreign "C" unblockOne(MyCapability() "ptr", StgMVar_head(mvar) "ptr") [];
StgMVar_head(mvar) = tso;
#endif
}
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_EMPTY_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
+#else
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
}
else
StgMVar_value(mvar) = R2;
#if defined(THREADED_RTS)
- foreign "C" unlockClosure(mvar "ptr", stg_FULL_MVAR_info) [];
+ unlockClosure(mvar, stg_MVAR_DIRTY_info);
#else
- SET_INFO(mvar,stg_FULL_MVAR_info);
+ SET_INFO(mvar,stg_MVAR_DIRTY_info);
#endif
}
ALLOC_PRIM( SIZEOF_StgStableName, R1_PTR, makeStableNamezh_fast );
- index = foreign "C" lookupStableName(R1 "ptr") [];
+ (index) = foreign "C" lookupStableName(R1 "ptr") [];
/* Is there already a StableName for this heap object?
* stable_ptr_table is a pointer to an array of snEntry structs.
/* Args: R1 = a */
W_ sp;
MAYBE_GC(R1_PTR, makeStablePtrzh_fast);
- "ptr" sp = foreign "C" getStablePtr(R1 "ptr") [];
+ ("ptr" sp) = foreign "C" getStablePtr(R1 "ptr") [];
RET_N(sp);
}
/* R1 = instrs
R2 = literals
R3 = ptrs
- R4 = itbls
- R5 = arity
- R6 = bitmap array
+ R4 = arity
+ R5 = bitmap array
*/
W_ bco, bitmap_arr, bytes, words;
- bitmap_arr = R6;
+ bitmap_arr = R5;
+
words = BYTES_TO_WDS(SIZEOF_StgBCO) + StgArrWords_words(bitmap_arr);
bytes = WDS(words);
- ALLOC_PRIM( bytes, R1_PTR&R2_PTR&R3_PTR&R4_PTR&R6_PTR, newBCOzh_fast );
+ ALLOC_PRIM( bytes, R1_PTR&R2_PTR&R3_PTR&R5_PTR, newBCOzh_fast );
bco = Hp - bytes + WDS(1);
SET_HDR(bco, stg_BCO_info, W_[CCCS]);
StgBCO_instrs(bco) = R1;
StgBCO_literals(bco) = R2;
StgBCO_ptrs(bco) = R3;
- StgBCO_itbls(bco) = R4;
- StgBCO_arity(bco) = HALF_W_(R5);
+ StgBCO_arity(bco) = HALF_W_(R4);
StgBCO_size(bco) = HALF_W_(words);
// Copy the arity/bitmap info into the BCO
RET_P(ap);
}
+unpackClosurezh_fast
+{
+/* args: R1 = closure to analyze */
+// TODO: Consider the absence of ptrs or nonptrs as a special case ?
+
+ W_ info, ptrs, nptrs, p, ptrs_arr, nptrs_arr;
+ info = %GET_STD_INFO(UNTAG(R1));
+
+ // Some closures have non-standard layout, so we omit those here.
+ W_ type;
+ type = TO_W_(%INFO_TYPE(info));
+ switch [0 .. N_CLOSURE_TYPES] type {
+ case THUNK_SELECTOR : {
+ ptrs = 1;
+ nptrs = 0;
+ goto out;
+ }
+ case THUNK, THUNK_1_0, THUNK_0_1, THUNK_2_0, THUNK_1_1,
+ THUNK_0_2, THUNK_STATIC, AP, PAP, AP_STACK, BCO : {
+ ptrs = 0;
+ nptrs = 0;
+ goto out;
+ }
+ default: {
+ ptrs = TO_W_(%INFO_PTRS(info));
+ nptrs = TO_W_(%INFO_NPTRS(info));
+ goto out;
+ }}
+out:
+
+ W_ ptrs_arr_sz, nptrs_arr_sz;
+ nptrs_arr_sz = SIZEOF_StgArrWords + WDS(nptrs);
+ ptrs_arr_sz = SIZEOF_StgMutArrPtrs + WDS(ptrs);
+
+ ALLOC_PRIM (ptrs_arr_sz + nptrs_arr_sz, R1_PTR, unpackClosurezh_fast);
+
+ W_ clos;
+ clos = UNTAG(R1);
+
+ ptrs_arr = Hp - nptrs_arr_sz - ptrs_arr_sz + WDS(1);
+ nptrs_arr = Hp - nptrs_arr_sz + WDS(1);
+
+ SET_HDR(ptrs_arr, stg_MUT_ARR_PTRS_FROZEN_info, W_[CCCS]);
+ StgMutArrPtrs_ptrs(ptrs_arr) = ptrs;
+ p = 0;
+for:
+ if(p < ptrs) {
+ W_[ptrs_arr + SIZEOF_StgMutArrPtrs + WDS(p)] = StgClosure_payload(clos,p);
+ p = p + 1;
+ goto for;
+ }
+
+ SET_HDR(nptrs_arr, stg_ARR_WORDS_info, W_[CCCS]);
+ StgArrWords_words(nptrs_arr) = nptrs;
+ p = 0;
+for2:
+ if(p < nptrs) {
+ W_[BYTE_ARR_CTS(nptrs_arr) + WDS(p)] = StgClosure_payload(clos, p+ptrs);
+ p = p + 1;
+ goto for2;
+ }
+ RET_NPP(info, ptrs_arr, nptrs_arr);
+}
+
/* -----------------------------------------------------------------------------
Thread I/O blocking primitives
-------------------------------------------------------------------------- */
{
/* args: R1 */
#ifdef THREADED_RTS
- foreign "C" barf("waitRead# on threaded RTS");
+ foreign "C" barf("waitRead# on threaded RTS") never returns;
#else
ASSERT(StgTSO_why_blocked(CurrentTSO) == NotBlocked::I16);
{
/* args: R1 */
#ifdef THREADED_RTS
- foreign "C" barf("waitWrite# on threaded RTS");
+ foreign "C" barf("waitWrite# on threaded RTS") never returns;
#else
ASSERT(StgTSO_why_blocked(CurrentTSO) == NotBlocked::I16);
#endif
#ifdef THREADED_RTS
- foreign "C" barf("delay# on threaded RTS");
+ foreign "C" barf("delay# on threaded RTS") never returns;
#else
/* args: R1 (microsecond delay amount) */
#ifdef mingw32_HOST_OS
/* could probably allocate this on the heap instead */
- "ptr" ares = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
+ ("ptr" ares) = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
stg_delayzh_malloc_str);
- reqID = foreign "C" addDelayRequest(R1);
+ (reqID) = foreign "C" addDelayRequest(R1);
StgAsyncIOResult_reqID(ares) = reqID;
StgAsyncIOResult_len(ares) = 0;
StgAsyncIOResult_errCode(ares) = 0;
#else
W_ time;
- time = foreign "C" getourtimeofday() [R1];
- target = (R1 / (TO_W_(RtsFlags_MiscFlags_tickInterval(RtsFlags))*1000)) + time;
+ W_ divisor;
+ (time) = foreign "C" getourtimeofday() [R1];
+ divisor = TO_W_(RtsFlags_MiscFlags_tickInterval(RtsFlags))*1000;
+ target = ((R1 + divisor - 1) / divisor) /* divide rounding up */
+ + time + 1; /* Add 1 as getourtimeofday rounds down */
StgTSO_block_info(CurrentTSO) = target;
/* Insert the new thread in the sleeping queue. */
CInt reqID;
#ifdef THREADED_RTS
- foreign "C" barf("asyncRead# on threaded RTS");
+ foreign "C" barf("asyncRead# on threaded RTS") never returns;
#else
/* args: R1 = fd, R2 = isSock, R3 = len, R4 = buf */
StgTSO_why_blocked(CurrentTSO) = BlockedOnRead::I16;
/* could probably allocate this on the heap instead */
- "ptr" ares = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
+ ("ptr" ares) = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
stg_asyncReadzh_malloc_str)
[R1,R2,R3,R4];
- reqID = foreign "C" addIORequest(R1, 0/*FALSE*/,R2,R3,R4 "ptr") [];
+ (reqID) = foreign "C" addIORequest(R1, 0/*FALSE*/,R2,R3,R4 "ptr") [];
StgAsyncIOResult_reqID(ares) = reqID;
StgAsyncIOResult_len(ares) = 0;
StgAsyncIOResult_errCode(ares) = 0;
CInt reqID;
#ifdef THREADED_RTS
- foreign "C" barf("asyncWrite# on threaded RTS");
+ foreign "C" barf("asyncWrite# on threaded RTS") never returns;
#else
/* args: R1 = fd, R2 = isSock, R3 = len, R4 = buf */
ASSERT(StgTSO_why_blocked(CurrentTSO) == NotBlocked::I16);
StgTSO_why_blocked(CurrentTSO) = BlockedOnWrite::I16;
- "ptr" ares = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
+ ("ptr" ares) = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
stg_asyncWritezh_malloc_str)
[R1,R2,R3,R4];
- reqID = foreign "C" addIORequest(R1, 1/*TRUE*/,R2,R3,R4 "ptr") [];
+ (reqID) = foreign "C" addIORequest(R1, 1/*TRUE*/,R2,R3,R4 "ptr") [];
StgAsyncIOResult_reqID(ares) = reqID;
StgAsyncIOResult_len(ares) = 0;
CInt reqID;
#ifdef THREADED_RTS
- foreign "C" barf("asyncDoProc# on threaded RTS");
+ foreign "C" barf("asyncDoProc# on threaded RTS") never returns;
#else
/* args: R1 = proc, R2 = param */
StgTSO_why_blocked(CurrentTSO) = BlockedOnDoProc::I16;
/* could probably allocate this on the heap instead */
- "ptr" ares = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
+ ("ptr" ares) = foreign "C" stgMallocBytes(SIZEOF_StgAsyncIOResult,
stg_asyncDoProczh_malloc_str)
[R1,R2];
- reqID = foreign "C" addDoProcRequest(R1 "ptr",R2 "ptr") [];
+ (reqID) = foreign "C" addDoProcRequest(R1 "ptr",R2 "ptr") [];
StgAsyncIOResult_reqID(ares) = reqID;
StgAsyncIOResult_len(ares) = 0;
StgAsyncIOResult_errCode(ares) = 0;
}
#endif
-/* -----------------------------------------------------------------------------
- ** temporary **
+// noDuplicate# tries to ensure that none of the thunks under
+// evaluation by the current thread are also under evaluation by
+// another thread. It relies on *both* threads doing noDuplicate#;
+// the second one will get blocked if they are duplicating some work.
+noDuplicatezh_fast
+{
+ SAVE_THREAD_STATE();
+ ASSERT(StgTSO_what_next(CurrentTSO) == ThreadRunGHC::I16);
+ foreign "C" threadPaused (MyCapability() "ptr", CurrentTSO "ptr") [];
+
+ if (StgTSO_what_next(CurrentTSO) == ThreadKilled::I16) {
+ jump stg_threadFinished;
+ } else {
+ LOAD_THREAD_STATE();
+ ASSERT(StgTSO_what_next(CurrentTSO) == ThreadRunGHC::I16);
+ jump %ENTRY_CODE(Sp(0));
+ }
+}
- classes CCallable and CReturnable don't really exist, but the
- compiler insists on generating dictionaries containing references
- to GHC_ZcCCallable_static_info etc., so we provide dummy symbols
- for these. Some C compilers can't cope with zero-length static arrays,
- so we have to make these one element long.
- --------------------------------------------------------------------------- */
+getApStackValzh_fast
+{
+ W_ ap_stack, offset, val, ok;
-section "rodata" {
- GHC_ZCCCallable_static_info: W_ 0;
-}
+ /* args: R1 = AP_STACK, R2 = offset */
+ ap_stack = R1;
+ offset = R2;
-section "rodata" {
- GHC_ZCCReturnable_static_info: W_ 0;
+ if (%INFO_PTR(ap_stack) == stg_AP_STACK_info) {
+ ok = 1;
+ val = StgAP_STACK_payload(ap_stack,offset);
+ } else {
+ ok = 0;
+ val = R1;
+ }
+ RET_NP(ok,val);
}
projects / ghc-hetmet.git / blobdiff