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v8/src/external-reference-table.cc
jgruber e815149402 [typedarray] Add set fast path for JSArray source arguments 
This adds a fast path that avoids the runtime transition for JSArray
source arguments with {packed,holey} {smi,double} elements kinds.

The fast path currently calls straight into C and copies there using
elements accessor logic.

Local tests show a 4x speedup when copying from 1-element JSArrays.
As the source array becomes larger, the time spent copying elements
begins to dominate.

Bug: v8:3590
Change-Id: I05ebe54d7b255d0a76ad46ac11ce7cfd516b8ac8
Reviewed-on: https://chromium-review.googlesource.com/789010
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49634}
2017-11-27 13:11:31 +00:00

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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/external-reference-table.h"
#include "src/accessors.h"
#include "src/assembler.h"
#include "src/counters.h"
#include "src/ic/stub-cache.h"
#if defined(DEBUG) && defined(V8_OS_LINUX) && !defined(V8_OS_ANDROID)
#define SYMBOLIZE_FUNCTION
#include <execinfo.h>
#include <vector>
#endif // DEBUG && V8_OS_LINUX && !V8_OS_ANDROID
namespace v8 {
namespace internal {
// Forward declarations for C++ builtins.
#define FORWARD_DECLARE(Name) \
Object* Builtin_##Name(int argc, Object** args, Isolate* isolate);
BUILTIN_LIST_C(FORWARD_DECLARE)
#undef FORWARD_DECLARE
ExternalReferenceTable* ExternalReferenceTable::instance(Isolate* isolate) {
ExternalReferenceTable* external_reference_table =
isolate->external_reference_table();
if (external_reference_table == nullptr) {
external_reference_table = new ExternalReferenceTable(isolate);
isolate->set_external_reference_table(external_reference_table);
}
return external_reference_table;
}
ExternalReferenceTable::ExternalReferenceTable(Isolate* isolate) {
// nullptr is preserved through serialization/deserialization.
Add(nullptr, "nullptr");
AddReferences(isolate);
AddBuiltins(isolate);
AddRuntimeFunctions(isolate);
AddIsolateAddresses(isolate);
AddAccessors(isolate);
AddStubCache(isolate);
}
const char* ExternalReferenceTable::ResolveSymbol(void* address) {
#ifdef SYMBOLIZE_FUNCTION
char** names = backtrace_symbols(&address, 1);
const char* name = names[0];
// The array of names is malloc'ed. However, each name string is static
// and do not need to be freed.
free(names);
return name;
#else
return "<unresolved>";
#endif // SYMBOLIZE_FUNCTION
}
void ExternalReferenceTable::Add(Address address, const char* name) {
refs_.emplace_back(address, name);
}
void ExternalReferenceTable::AddReferences(Isolate* isolate) {
// Miscellaneous
Add(ExternalReference::roots_array_start(isolate).address(),
"Heap::roots_array_start()");
Add(ExternalReference::address_of_stack_limit(isolate).address(),
"StackGuard::address_of_jslimit()");
Add(ExternalReference::address_of_real_stack_limit(isolate).address(),
"StackGuard::address_of_real_jslimit()");
Add(ExternalReference::new_space_allocation_limit_address(isolate).address(),
"Heap::NewSpaceAllocationLimitAddress()");
Add(ExternalReference::new_space_allocation_top_address(isolate).address(),
"Heap::NewSpaceAllocationTopAddress()");
Add(ExternalReference::mod_two_doubles_operation(isolate).address(),
"mod_two_doubles");
Add(ExternalReference::handle_scope_next_address(isolate).address(),
"HandleScope::next");
Add(ExternalReference::handle_scope_limit_address(isolate).address(),
"HandleScope::limit");
Add(ExternalReference::handle_scope_level_address(isolate).address(),
"HandleScope::level");
Add(ExternalReference::new_deoptimizer_function(isolate).address(),
"Deoptimizer::New()");
Add(ExternalReference::compute_output_frames_function(isolate).address(),
"Deoptimizer::ComputeOutputFrames()");
Add(ExternalReference::address_of_min_int().address(),
"LDoubleConstant::min_int");
Add(ExternalReference::address_of_one_half().address(),
"LDoubleConstant::one_half");
Add(ExternalReference::isolate_address(isolate).address(), "isolate");
Add(ExternalReference::builtins_address(isolate).address(), "builtins");
Add(ExternalReference::interpreter_dispatch_table_address(isolate).address(),
"Interpreter::dispatch_table_address");
Add(ExternalReference::bytecode_size_table_address(isolate).address(),
"Bytecodes::bytecode_size_table_address");
Add(ExternalReference::address_of_negative_infinity().address(),
"LDoubleConstant::negative_infinity");
Add(ExternalReference::power_double_double_function(isolate).address(),
"power_double_double_function");
Add(ExternalReference::ieee754_acos_function(isolate).address(),
"base::ieee754::acos");
Add(ExternalReference::ieee754_acosh_function(isolate).address(),
"base::ieee754::acosh");
Add(ExternalReference::ieee754_asin_function(isolate).address(),
"base::ieee754::asin");
Add(ExternalReference::ieee754_asinh_function(isolate).address(),
"base::ieee754::asinh");
Add(ExternalReference::ieee754_atan_function(isolate).address(),
"base::ieee754::atan");
Add(ExternalReference::ieee754_atanh_function(isolate).address(),
"base::ieee754::atanh");
Add(ExternalReference::ieee754_atan2_function(isolate).address(),
"base::ieee754::atan2");
Add(ExternalReference::ieee754_cbrt_function(isolate).address(),
"base::ieee754::cbrt");
Add(ExternalReference::ieee754_cos_function(isolate).address(),
"base::ieee754::cos");
Add(ExternalReference::ieee754_cosh_function(isolate).address(),
"base::ieee754::cosh");
Add(ExternalReference::ieee754_exp_function(isolate).address(),
"base::ieee754::exp");
Add(ExternalReference::ieee754_expm1_function(isolate).address(),
"base::ieee754::expm1");
Add(ExternalReference::ieee754_log_function(isolate).address(),
"base::ieee754::log");
Add(ExternalReference::ieee754_log1p_function(isolate).address(),
"base::ieee754::log1p");
Add(ExternalReference::ieee754_log10_function(isolate).address(),
"base::ieee754::log10");
Add(ExternalReference::ieee754_log2_function(isolate).address(),
"base::ieee754::log2");
Add(ExternalReference::ieee754_sin_function(isolate).address(),
"base::ieee754::sin");
Add(ExternalReference::ieee754_sinh_function(isolate).address(),
"base::ieee754::sinh");
Add(ExternalReference::ieee754_tan_function(isolate).address(),
"base::ieee754::tan");
Add(ExternalReference::ieee754_tanh_function(isolate).address(),
"base::ieee754::tanh");
Add(ExternalReference::store_buffer_top(isolate).address(),
"store_buffer_top");
Add(ExternalReference::heap_is_marking_flag_address(isolate).address(),
"heap_is_marking_flag_address");
Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan");
Add(ExternalReference::get_date_field_function(isolate).address(),
"JSDate::GetField");
Add(ExternalReference::date_cache_stamp(isolate).address(),
"date_cache_stamp");
Add(ExternalReference::address_of_pending_message_obj(isolate).address(),
"address_of_pending_message_obj");
Add(ExternalReference::cpu_features().address(), "cpu_features");
Add(ExternalReference::old_space_allocation_top_address(isolate).address(),
"Heap::OldSpaceAllocationTopAddress");
Add(ExternalReference::old_space_allocation_limit_address(isolate).address(),
"Heap::OldSpaceAllocationLimitAddress");
Add(ExternalReference::allocation_sites_list_address(isolate).address(),
"Heap::allocation_sites_list_address()");
Add(ExternalReference::address_of_uint32_bias().address(), "uint32_bias");
Add(ExternalReference::is_profiling_address(isolate).address(),
"Isolate::is_profiling");
Add(ExternalReference::scheduled_exception_address(isolate).address(),
"Isolate::scheduled_exception");
Add(ExternalReference::invoke_function_callback(isolate).address(),
"InvokeFunctionCallback");
Add(ExternalReference::invoke_accessor_getter_callback(isolate).address(),
"InvokeAccessorGetterCallback");
Add(ExternalReference::wasm_f32_trunc(isolate).address(),
"wasm::f32_trunc_wrapper");
Add(ExternalReference::wasm_f32_floor(isolate).address(),
"wasm::f32_floor_wrapper");
Add(ExternalReference::wasm_f32_ceil(isolate).address(),
"wasm::f32_ceil_wrapper");
Add(ExternalReference::wasm_f32_nearest_int(isolate).address(),
"wasm::f32_nearest_int_wrapper");
Add(ExternalReference::wasm_f64_trunc(isolate).address(),
"wasm::f64_trunc_wrapper");
Add(ExternalReference::wasm_f64_floor(isolate).address(),
"wasm::f64_floor_wrapper");
Add(ExternalReference::wasm_f64_ceil(isolate).address(),
"wasm::f64_ceil_wrapper");
Add(ExternalReference::wasm_f64_nearest_int(isolate).address(),
"wasm::f64_nearest_int_wrapper");
Add(ExternalReference::wasm_int64_to_float32(isolate).address(),
"wasm::int64_to_float32_wrapper");
Add(ExternalReference::wasm_uint64_to_float32(isolate).address(),
"wasm::uint64_to_float32_wrapper");
Add(ExternalReference::wasm_int64_to_float64(isolate).address(),
"wasm::int64_to_float64_wrapper");
Add(ExternalReference::wasm_uint64_to_float64(isolate).address(),
"wasm::uint64_to_float64_wrapper");
Add(ExternalReference::wasm_float32_to_int64(isolate).address(),
"wasm::float32_to_int64_wrapper");
Add(ExternalReference::wasm_float32_to_uint64(isolate).address(),
"wasm::float32_to_uint64_wrapper");
Add(ExternalReference::wasm_float64_to_int64(isolate).address(),
"wasm::float64_to_int64_wrapper");
Add(ExternalReference::wasm_float64_to_uint64(isolate).address(),
"wasm::float64_to_uint64_wrapper");
Add(ExternalReference::wasm_float64_pow(isolate).address(),
"wasm::float64_pow");
Add(ExternalReference::wasm_int64_div(isolate).address(), "wasm::int64_div");
Add(ExternalReference::wasm_int64_mod(isolate).address(), "wasm::int64_mod");
Add(ExternalReference::wasm_uint64_div(isolate).address(),
"wasm::uint64_div");
Add(ExternalReference::wasm_uint64_mod(isolate).address(),
"wasm::uint64_mod");
Add(ExternalReference::wasm_word32_ctz(isolate).address(),
"wasm::word32_ctz");
Add(ExternalReference::wasm_word64_ctz(isolate).address(),
"wasm::word64_ctz");
Add(ExternalReference::wasm_word32_popcnt(isolate).address(),
"wasm::word32_popcnt");
Add(ExternalReference::wasm_word64_popcnt(isolate).address(),
"wasm::word64_popcnt");
// If the trap handler is not supported, the optimizer will remove these
// runtime functions. In this case, the arm simulator will break if we add
// them to the external reference table.
#ifdef V8_TARGET_ARCH_X64
Add(ExternalReference::wasm_set_thread_in_wasm_flag(isolate).address(),
"wasm::set_thread_in_wasm_flag");
Add(ExternalReference::wasm_clear_thread_in_wasm_flag(isolate).address(),
"wasm::clear_thread_in_wasm_flag");
#endif
Add(ExternalReference::f64_acos_wrapper_function(isolate).address(),
"f64_acos_wrapper");
Add(ExternalReference::f64_asin_wrapper_function(isolate).address(),
"f64_asin_wrapper");
Add(ExternalReference::f64_mod_wrapper_function(isolate).address(),
"f64_mod_wrapper");
Add(ExternalReference::wasm_call_trap_callback_for_testing(isolate).address(),
"wasm::call_trap_callback_for_testing");
Add(ExternalReference::libc_memchr_function(isolate).address(),
"libc_memchr");
Add(ExternalReference::libc_memcpy_function(isolate).address(),
"libc_memcpy");
Add(ExternalReference::libc_memmove_function(isolate).address(),
"libc_memmove");
Add(ExternalReference::libc_memset_function(isolate).address(),
"libc_memset");
Add(ExternalReference::printf_function(isolate).address(), "printf");
Add(ExternalReference::try_internalize_string_function(isolate).address(),
"try_internalize_string_function");
Add(ExternalReference::check_object_type(isolate).address(),
"check_object_type");
#ifdef V8_INTL_SUPPORT
Add(ExternalReference::intl_convert_one_byte_to_lower(isolate).address(),
"intl_convert_one_byte_to_lower");
Add(ExternalReference::intl_to_latin1_lower_table(isolate).address(),
"intl_to_latin1_lower_table");
#endif // V8_INTL_SUPPORT
Add(ExternalReference::search_string_raw<const uint8_t, const uint8_t>(
isolate)
.address(),
"search_string_raw<1-byte, 1-byte>");
Add(ExternalReference::search_string_raw<const uint8_t, const uc16>(isolate)
.address(),
"search_string_raw<1-byte, 2-byte>");
Add(ExternalReference::search_string_raw<const uc16, const uint8_t>(isolate)
.address(),
"search_string_raw<2-byte, 1-byte>");
Add(ExternalReference::search_string_raw<const uc16, const uc16>(isolate)
.address(),
"search_string_raw<1-byte, 2-byte>");
Add(ExternalReference::orderedhashmap_gethash_raw(isolate).address(),
"orderedhashmap_gethash_raw");
Add(ExternalReference::get_or_create_hash_raw(isolate).address(),
"get_or_create_hash_raw");
Add(ExternalReference::jsreceiver_create_identity_hash(isolate).address(),
"jsreceiver_create_identity_hash");
Add(ExternalReference::copy_fast_number_jsarray_elements_to_typed_array(
isolate)
.address(),
"copy_fast_number_jsarray_elements_to_typed_array");
Add(ExternalReference::log_enter_external_function(isolate).address(),
"Logger::EnterExternal");
Add(ExternalReference::log_leave_external_function(isolate).address(),
"Logger::LeaveExternal");
Add(ExternalReference::address_of_minus_one_half().address(),
"double_constants.minus_one_half");
Add(ExternalReference::stress_deopt_count(isolate).address(),
"Isolate::stress_deopt_count_address()");
Add(ExternalReference::runtime_function_table_address(isolate).address(),
"Runtime::runtime_function_table_address()");
Add(ExternalReference::address_of_float_abs_constant().address(),
"float_absolute_constant");
Add(ExternalReference::address_of_float_neg_constant().address(),
"float_negate_constant");
Add(ExternalReference::address_of_double_abs_constant().address(),
"double_absolute_constant");
Add(ExternalReference::address_of_double_neg_constant().address(),
"double_negate_constant");
Add(ExternalReference::promise_hook_or_debug_is_active_address(isolate)
.address(),
"Isolate::promise_hook_or_debug_is_active_address()");
// Debug addresses
Add(ExternalReference::debug_is_active_address(isolate).address(),
"Debug::is_active_address()");
Add(ExternalReference::debug_hook_on_function_call_address(isolate).address(),
"Debug::hook_on_function_call_address()");
Add(ExternalReference::debug_last_step_action_address(isolate).address(),
"Debug::step_in_enabled_address()");
Add(ExternalReference::debug_suspended_generator_address(isolate).address(),
"Debug::step_suspended_generator_address()");
Add(ExternalReference::debug_restart_fp_address(isolate).address(),
"Debug::restart_fp_address()");
#ifndef V8_INTERPRETED_REGEXP
Add(ExternalReference::re_case_insensitive_compare_uc16(isolate).address(),
"NativeRegExpMacroAssembler::CaseInsensitiveCompareUC16()");
Add(ExternalReference::re_check_stack_guard_state(isolate).address(),
"RegExpMacroAssembler*::CheckStackGuardState()");
Add(ExternalReference::re_grow_stack(isolate).address(),
"NativeRegExpMacroAssembler::GrowStack()");
Add(ExternalReference::re_word_character_map().address(),
"NativeRegExpMacroAssembler::word_character_map");
Add(ExternalReference::address_of_regexp_stack_limit(isolate).address(),
"RegExpStack::limit_address()");
Add(ExternalReference::address_of_regexp_stack_memory_address(isolate)
.address(),
"RegExpStack::memory_address()");
Add(ExternalReference::address_of_regexp_stack_memory_size(isolate).address(),
"RegExpStack::memory_size()");
Add(ExternalReference::address_of_static_offsets_vector(isolate).address(),
"OffsetsVector::static_offsets_vector");
#endif // V8_INTERPRETED_REGEXP
// Runtime entries
Add(ExternalReference::delete_handle_scope_extensions(isolate).address(),
"HandleScope::DeleteExtensions");
Add(ExternalReference::incremental_marking_record_write_function(isolate)
.address(),
"IncrementalMarking::RecordWrite");
Add(ExternalReference::store_buffer_overflow_function(isolate).address(),
"StoreBuffer::StoreBufferOverflow");
}
void ExternalReferenceTable::AddBuiltins(Isolate* isolate) {
struct CBuiltinEntry {
Address address;
const char* name;
};
static const CBuiltinEntry c_builtins[] = {
#define DEF_ENTRY(Name, ...) {FUNCTION_ADDR(&Builtin_##Name), "Builtin_" #Name},
BUILTIN_LIST_C(DEF_ENTRY)
#undef DEF_ENTRY
};
for (unsigned i = 0; i < arraysize(c_builtins); ++i) {
Add(ExternalReference(c_builtins[i].address, isolate).address(),
c_builtins[i].name);
}
}
void ExternalReferenceTable::AddRuntimeFunctions(Isolate* isolate) {
struct RuntimeEntry {
Runtime::FunctionId id;
const char* name;
};
static const RuntimeEntry runtime_functions[] = {
#define RUNTIME_ENTRY(name, i1, i2) {Runtime::k##name, "Runtime::" #name},
FOR_EACH_INTRINSIC(RUNTIME_ENTRY)
#undef RUNTIME_ENTRY
};
for (unsigned i = 0; i < arraysize(runtime_functions); ++i) {
ExternalReference ref(runtime_functions[i].id, isolate);
Add(ref.address(), runtime_functions[i].name);
}
}
void ExternalReferenceTable::AddIsolateAddresses(Isolate* isolate) {
// Top addresses
static const char* address_names[] = {
#define BUILD_NAME_LITERAL(Name, name) "Isolate::" #name "_address",
FOR_EACH_ISOLATE_ADDRESS_NAME(BUILD_NAME_LITERAL) nullptr
#undef BUILD_NAME_LITERAL
};
for (int i = 0; i < IsolateAddressId::kIsolateAddressCount; ++i) {
Add(isolate->get_address_from_id(static_cast<IsolateAddressId>(i)),
address_names[i]);
}
}
void ExternalReferenceTable::AddAccessors(Isolate* isolate) {
// Accessors
struct AccessorRefTable {
Address address;
const char* name;
};
static const AccessorRefTable getters[] = {
#define ACCESSOR_INFO_DECLARATION(accessor_name, AccessorName) \
{FUNCTION_ADDR(&Accessors::AccessorName##Getter), \
"Accessors::" #AccessorName "Getter"}, /* NOLINT(whitespace/indent) */
ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION)
#undef ACCESSOR_INFO_DECLARATION
};
static const AccessorRefTable setters[] = {
#define ACCESSOR_SETTER_DECLARATION(name) \
{ FUNCTION_ADDR(&Accessors::name), "Accessors::" #name},
ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION)
#undef ACCESSOR_SETTER_DECLARATION
};
for (unsigned i = 0; i < arraysize(getters); ++i) {
Add(getters[i].address, getters[i].name);
}
for (unsigned i = 0; i < arraysize(setters); ++i) {
Add(setters[i].address, setters[i].name);
}
}
void ExternalReferenceTable::AddStubCache(Isolate* isolate) {
StubCache* load_stub_cache = isolate->load_stub_cache();
// Stub cache tables
Add(load_stub_cache->key_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->key");
Add(load_stub_cache->value_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->value");
Add(load_stub_cache->map_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->map");
Add(load_stub_cache->key_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->key");
Add(load_stub_cache->value_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->value");
Add(load_stub_cache->map_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->map");
StubCache* store_stub_cache = isolate->store_stub_cache();
// Stub cache tables
Add(store_stub_cache->key_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->key");
Add(store_stub_cache->value_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->value");
Add(store_stub_cache->map_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->map");
Add(store_stub_cache->key_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->key");
Add(store_stub_cache->value_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->value");
Add(store_stub_cache->map_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->map");
}
} // namespace internal
} // namespace v8
#undef SYMBOLIZE_FUNCTION
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