X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=cmodelint.cc;h=17bd003bbed685859cd36e3839338068eade5678;hp=4754a826800ab3cee4d6d32baf152905fb3d2d70;hb=7be1e69a98941b9fade77203f5f509510dda7ef6;hpb=247e28f81f258c3c380be00a89430186f8ac11ed diff --git a/cmodelint.cc b/cmodelint.cc index 4754a826..17bd003b 100644 --- a/cmodelint.cc +++ b/cmodelint.cc @@ -1,28 +1,360 @@ +#include #include "model.h" +#include "action.h" #include "cmodelint.h" +#include "threads-model.h" +memory_order orders[6] = { + memory_order_relaxed, memory_order_consume, memory_order_acquire, + memory_order_release, memory_order_acq_rel, memory_order_seq_cst +}; + +/** Performs a read action.*/ uint64_t model_read_action(void * obj, memory_order ord) { - model->switch_to_master(new ModelAction(ATOMIC_READ, ord, obj)); - return thread_current()->get_return_value(); + return model->switch_to_master(new ModelAction(ATOMIC_READ, ord, obj)); } +/** Performs a write action.*/ void model_write_action(void * obj, memory_order ord, uint64_t val) { model->switch_to_master(new ModelAction(ATOMIC_WRITE, ord, obj, val)); } +/** Performs an init action. */ void model_init_action(void * obj, uint64_t val) { model->switch_to_master(new ModelAction(ATOMIC_INIT, memory_order_relaxed, obj, val)); } +/** + * Performs the read part of a RMW action. The next action must either be the + * write part of the RMW action or an explicit close out of the RMW action w/o + * a write. + */ uint64_t model_rmwr_action(void *obj, memory_order ord) { - model->switch_to_master(new ModelAction(ATOMIC_RMWR, ord, obj)); - return thread_current()->get_return_value(); + return model->switch_to_master(new ModelAction(ATOMIC_RMWR, ord, obj)); +} + +/** + * Performs the read part of a RMW CAS action. The next action must + * either be the write part of the RMW action or an explicit close out + * of the RMW action w/o a write. + */ +uint64_t model_rmwrcas_action(void *obj, memory_order ord, uint64_t oldval, int size) { + return model->switch_to_master(new ModelAction(ATOMIC_RMWRCAS, ord, obj, oldval, size)); } + +/** Performs the write part of a RMW action. */ void model_rmw_action(void *obj, memory_order ord, uint64_t val) { model->switch_to_master(new ModelAction(ATOMIC_RMW, ord, obj, val)); } +/** Closes out a RMW action without doing a write. */ void model_rmwc_action(void *obj, memory_order ord) { model->switch_to_master(new ModelAction(ATOMIC_RMWC, ord, obj)); } + +/** Issues a fence operation. */ +void model_fence_action(memory_order ord) { + model->switch_to_master(new ModelAction(ATOMIC_FENCE, ord, FENCE_LOCATION)); +} + +/* --- helper functions --- */ +uint64_t model_rmwrcas_action_helper(void *obj, int atomic_index, const char *position) { + return model->switch_to_master( + new ModelAction(ATOMIC_RMWRCAS, position, orders[atomic_index], obj) + ); +} + +uint64_t model_rmwr_action_helper(void *obj, int atomic_index, const char *position) { + return model->switch_to_master( + new ModelAction(ATOMIC_RMWR, position, orders[atomic_index], obj) + ); +} + +void model_rmw_action_helper(void *obj, uint64_t val, int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_RMW, position, orders[atomic_index], obj, val) + ); +} + +void model_rmwc_action_helper(void *obj, int atomic_index, const char *position) { + model->switch_to_master( + new ModelAction(ATOMIC_RMWC, position, orders[atomic_index], obj) + ); +} + +// cds atomic inits +void cds_atomic_init8(void * obj, uint8_t val, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_INIT, position, memory_order_relaxed, obj, (uint64_t) val) + ); +} +void cds_atomic_init16(void * obj, uint16_t val, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_INIT, position, memory_order_relaxed, obj, (uint64_t) val) + ); +} +void cds_atomic_init32(void * obj, uint32_t val, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_INIT, position, memory_order_relaxed, obj, (uint64_t) val) + ); +} +void cds_atomic_init64(void * obj, uint64_t val, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_INIT, position, memory_order_relaxed, obj, val) + ); +} + + +// cds atomic loads +uint8_t cds_atomic_load8(void * obj, int atomic_index, const char * position) { + return (uint8_t) ( model->switch_to_master( + new ModelAction(ATOMIC_READ, position, orders[atomic_index], obj)) + ); +} +uint16_t cds_atomic_load16(void * obj, int atomic_index, const char * position) { + return (uint16_t) ( model->switch_to_master( + new ModelAction(ATOMIC_READ, position, orders[atomic_index], obj)) + ); +} +uint32_t cds_atomic_load32(void * obj, int atomic_index, const char * position) { + return (uint32_t) ( model->switch_to_master( + new ModelAction(ATOMIC_READ, position, orders[atomic_index], obj)) + ); +} +uint64_t cds_atomic_load64(void * obj, int atomic_index, const char * position) { + return model->switch_to_master( + new ModelAction(ATOMIC_READ, position, orders[atomic_index], obj) + ); +} + +// cds atomic stores +void cds_atomic_store8(void * obj, uint8_t val, int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_WRITE, position, orders[atomic_index], obj, (uint64_t) val) + ); +} +void cds_atomic_store16(void * obj, uint16_t val, int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_WRITE, position, orders[atomic_index], obj, (uint64_t) val) + ); +} +void cds_atomic_store32(void * obj, uint32_t val, int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_WRITE, position, orders[atomic_index], obj, (uint64_t) val) + ); +} +void cds_atomic_store64(void * obj, uint64_t val, int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_WRITE, position, orders[atomic_index], obj, val) + ); +} + +#define _ATOMIC_RMW_(__op__, size, addr, val, atomic_index, position) \ +({ \ + uint##size##_t _old = model_rmwr_action_helper(addr, atomic_index, position); \ + uint##size##_t _copy = _old; \ + uint##size##_t _val = val; \ + _copy __op__ _val; \ + model_rmw_action_helper(addr, (uint64_t) _copy, atomic_index, position); \ + return _old; \ +}) + +// cds atomic exchange +uint8_t cds_atomic_exchange8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( = , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_exchange16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( = , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_exchange32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( = , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_exchange64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( = , 64, addr, val, atomic_index, position); +} + +// cds atomic fetch add +uint8_t cds_atomic_fetch_add8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( += , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_fetch_add16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( += , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_fetch_add32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( += , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_fetch_add64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( += , 64, addr, val, atomic_index, position); +} + +// cds atomic fetch sub +uint8_t cds_atomic_fetch_sub8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( -= , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_fetch_sub16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( -= , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_fetch_sub32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( -= , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_fetch_sub64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( -= , 64, addr, val, atomic_index, position); +} + +// cds atomic fetch and +uint8_t cds_atomic_fetch_and8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( &= , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_fetch_and16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( &= , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_fetch_and32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( &= , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_fetch_and64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( &= , 64, addr, val, atomic_index, position); +} + +// cds atomic fetch or +uint8_t cds_atomic_fetch_or8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( |= , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_fetch_or16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( |= , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_fetch_or32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( |= , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_fetch_or64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( |= , 64, addr, val, atomic_index, position); +} + +// cds atomic fetch xor +uint8_t cds_atomic_fetch_xor8(void* addr, uint8_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( ^= , 8, addr, val, atomic_index, position); +} +uint16_t cds_atomic_fetch_xor16(void* addr, uint16_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( ^= , 16, addr, val, atomic_index, position); +} +uint32_t cds_atomic_fetch_xor32(void* addr, uint32_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( ^= , 32, addr, val, atomic_index, position); +} +uint64_t cds_atomic_fetch_xor64(void* addr, uint64_t val, int atomic_index, const char * position) { + _ATOMIC_RMW_( ^= , 64, addr, val, atomic_index, position); +} + +// cds atomic compare and exchange +// In order to accomodate the LLVM PASS, the return values are not true or false. + +#define _ATOMIC_CMPSWP_WEAK_ _ATOMIC_CMPSWP_ +#define _ATOMIC_CMPSWP_(size, addr, expected, desired, atomic_index, position) \ +({ \ + uint##size##_t _desired = desired; \ + uint##size##_t _expected = expected; \ + uint##size##_t _old = model_rmwrcas_action_helper(addr, atomic_index, position); \ + if (_old == _expected) { \ + model_rmw_action_helper(addr, (uint64_t) _desired, atomic_index, position); return _expected; } \ + else { \ + model_rmwc_action_helper(addr, atomic_index, position); _expected = _old; return _old; } \ +}) + +// atomic_compare_exchange version 1: the CmpOperand (corresponds to expected) +// extracted from LLVM IR is an integer type. + +uint8_t cds_atomic_compare_exchange8_v1(void* addr, uint8_t expected, uint8_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position ) +{ + _ATOMIC_CMPSWP_(8, addr, expected, desired, + atomic_index_succ, position); +} +uint16_t cds_atomic_compare_exchange16_v1(void* addr, uint16_t expected, uint16_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + _ATOMIC_CMPSWP_(16, addr, expected, desired, + atomic_index_succ, position); +} +uint32_t cds_atomic_compare_exchange32_v1(void* addr, uint32_t expected, uint32_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + _ATOMIC_CMPSWP_(32, addr, expected, desired, + atomic_index_succ, position); +} +uint64_t cds_atomic_compare_exchange64_v1(void* addr, uint64_t expected, uint64_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + _ATOMIC_CMPSWP_(64, addr, expected, desired, + atomic_index_succ, position); +} + +// atomic_compare_exchange version 2 +bool cds_atomic_compare_exchange8_v2(void* addr, uint8_t* expected, uint8_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position ) +{ + uint8_t ret = cds_atomic_compare_exchange8_v1(addr, *expected, + desired, atomic_index_succ, atomic_index_fail, position); + if (ret == *expected) return true; + else return false; +} +bool cds_atomic_compare_exchange16_v2(void* addr, uint16_t* expected, uint16_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + uint16_t ret = cds_atomic_compare_exchange16_v1(addr, *expected, + desired, atomic_index_succ, atomic_index_fail, position); + if (ret == *expected) return true; + else return false; +} +bool cds_atomic_compare_exchange32_v2(void* addr, uint32_t* expected, uint32_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + uint32_t ret = cds_atomic_compare_exchange32_v1(addr, *expected, + desired, atomic_index_succ, atomic_index_fail, position); + if (ret == *expected) return true; + else return false; +} +bool cds_atomic_compare_exchange64_v2(void* addr, uint64_t* expected, uint64_t desired, + int atomic_index_succ, int atomic_index_fail, const char *position) +{ + uint64_t ret = cds_atomic_compare_exchange64_v1(addr, *expected, + desired, atomic_index_succ, atomic_index_fail, position); + if (ret == *expected) return true; + else return false; +} + + +// cds atomic thread fence + +void cds_atomic_thread_fence(int atomic_index, const char * position) { + model->switch_to_master( + new ModelAction(ATOMIC_FENCE, position, orders[atomic_index], FENCE_LOCATION) + ); +} + +/* +#define _ATOMIC_CMPSWP_( __a__, __e__, __m__, __x__ ) \ + ({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \ + __typeof__(__e__) __q__ = (__e__); \ + __typeof__(__m__) __v__ = (__m__); \ + bool __r__; \ + __typeof__((__a__)->__f__) __t__=(__typeof__((__a__)->__f__)) model_rmwr_action((void *)__p__, __x__); \ + if (__t__ == * __q__ ) { \ + model_rmw_action((void *)__p__, __x__, (uint64_t) __v__); __r__ = true; } \ + else { model_rmwc_action((void *)__p__, __x__); *__q__ = __t__; __r__ = false;} \ + __r__; }) + +#define _ATOMIC_FENCE_( __x__ ) \ + ({ model_fence_action(__x__);}) +*/ + +/* + +#define _ATOMIC_MODIFY_( __a__, __o__, __m__, __x__ ) \ + ({ volatile __typeof__((__a__)->__f__)* __p__ = & ((__a__)->__f__); \ + __typeof__((__a__)->__f__) __old__=(__typeof__((__a__)->__f__)) model_rmwr_action((void *)__p__, __x__); \ + __typeof__(__m__) __v__ = (__m__); \ + __typeof__((__a__)->__f__) __copy__= __old__; \ + __copy__ __o__ __v__; \ + model_rmw_action((void *)__p__, __x__, (uint64_t) __copy__); \ + __old__ = __old__; Silence clang (-Wunused-value) \ + }) +*/