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Unified Diff: src/ic-inl.h

Issue 483683005: Move IC code into a subdir and move ic-compilation related code from stub-cache into ic-compiler (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix BUILD.gn Created 6 years, 4 months ago
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Index: src/ic-inl.h
diff --git a/src/ic-inl.h b/src/ic-inl.h
deleted file mode 100644
index c7954ce13a3f8c681869b2f3aea416a90bfa84de..0000000000000000000000000000000000000000
--- a/src/ic-inl.h
+++ /dev/null
@@ -1,189 +0,0 @@
-// Copyright 2012 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.
-
-#ifndef V8_IC_INL_H_
-#define V8_IC_INL_H_
-
-#include "src/ic.h"
-
-#include "src/compiler.h"
-#include "src/debug.h"
-#include "src/macro-assembler.h"
-#include "src/prototype.h"
-
-namespace v8 {
-namespace internal {
-
-
-Address IC::address() const {
- // Get the address of the call.
- Address result = Assembler::target_address_from_return_address(pc());
-
- Debug* debug = isolate()->debug();
- // First check if any break points are active if not just return the address
- // of the call.
- if (!debug->has_break_points()) return result;
-
- // At least one break point is active perform additional test to ensure that
- // break point locations are updated correctly.
- if (debug->IsDebugBreak(Assembler::target_address_at(result,
- raw_constant_pool()))) {
- // If the call site is a call to debug break then return the address in
- // the original code instead of the address in the running code. This will
- // cause the original code to be updated and keeps the breakpoint active in
- // the running code.
- Code* code = GetCode();
- Code* original_code = GetOriginalCode();
- intptr_t delta =
- original_code->instruction_start() - code->instruction_start();
- // Return the address in the original code. This is the place where
- // the call which has been overwritten by the DebugBreakXXX resides
- // and the place where the inline cache system should look.
- return result + delta;
- } else {
- // No break point here just return the address of the call.
- return result;
- }
-}
-
-
-ConstantPoolArray* IC::constant_pool() const {
- if (!FLAG_enable_ool_constant_pool) {
- return NULL;
- } else {
- Handle<ConstantPoolArray> result = raw_constant_pool_;
- Debug* debug = isolate()->debug();
- // First check if any break points are active if not just return the
- // original constant pool.
- if (!debug->has_break_points()) return *result;
-
- // At least one break point is active perform additional test to ensure that
- // break point locations are updated correctly.
- Address target = Assembler::target_address_from_return_address(pc());
- if (debug->IsDebugBreak(
- Assembler::target_address_at(target, raw_constant_pool()))) {
- // If the call site is a call to debug break then we want to return the
- // constant pool for the original code instead of the breakpointed code.
- return GetOriginalCode()->constant_pool();
- }
- return *result;
- }
-}
-
-
-ConstantPoolArray* IC::raw_constant_pool() const {
- if (FLAG_enable_ool_constant_pool) {
- return *raw_constant_pool_;
- } else {
- return NULL;
- }
-}
-
-
-Code* IC::GetTargetAtAddress(Address address,
- ConstantPoolArray* constant_pool) {
- // Get the target address of the IC.
- Address target = Assembler::target_address_at(address, constant_pool);
- // Convert target address to the code object. Code::GetCodeFromTargetAddress
- // is safe for use during GC where the map might be marked.
- Code* result = Code::GetCodeFromTargetAddress(target);
- DCHECK(result->is_inline_cache_stub());
- return result;
-}
-
-
-void IC::SetTargetAtAddress(Address address,
- Code* target,
- ConstantPoolArray* constant_pool) {
- DCHECK(target->is_inline_cache_stub() || target->is_compare_ic_stub());
- Heap* heap = target->GetHeap();
- Code* old_target = GetTargetAtAddress(address, constant_pool);
-#ifdef DEBUG
- // STORE_IC and KEYED_STORE_IC use Code::extra_ic_state() to mark
- // ICs as strict mode. The strict-ness of the IC must be preserved.
- if (old_target->kind() == Code::STORE_IC ||
- old_target->kind() == Code::KEYED_STORE_IC) {
- DCHECK(StoreIC::GetStrictMode(old_target->extra_ic_state()) ==
- StoreIC::GetStrictMode(target->extra_ic_state()));
- }
-#endif
- Assembler::set_target_address_at(
- address, constant_pool, target->instruction_start());
- if (heap->gc_state() == Heap::MARK_COMPACT) {
- heap->mark_compact_collector()->RecordCodeTargetPatch(address, target);
- } else {
- heap->incremental_marking()->RecordCodeTargetPatch(address, target);
- }
- PostPatching(address, target, old_target);
-}
-
-
-template <class TypeClass>
-JSFunction* IC::GetRootConstructor(TypeClass* type, Context* native_context) {
- if (type->Is(TypeClass::Boolean())) {
- return native_context->boolean_function();
- } else if (type->Is(TypeClass::Number())) {
- return native_context->number_function();
- } else if (type->Is(TypeClass::String())) {
- return native_context->string_function();
- } else if (type->Is(TypeClass::Symbol())) {
- return native_context->symbol_function();
- } else {
- return NULL;
- }
-}
-
-
-Handle<Map> IC::GetHandlerCacheHolder(HeapType* type, bool receiver_is_holder,
- Isolate* isolate, CacheHolderFlag* flag) {
- Handle<Map> receiver_map = TypeToMap(type, isolate);
- if (receiver_is_holder) {
- *flag = kCacheOnReceiver;
- return receiver_map;
- }
- Context* native_context = *isolate->native_context();
- JSFunction* builtin_ctor = GetRootConstructor(type, native_context);
- if (builtin_ctor != NULL) {
- *flag = kCacheOnPrototypeReceiverIsPrimitive;
- return handle(HeapObject::cast(builtin_ctor->instance_prototype())->map());
- }
- *flag = receiver_map->is_dictionary_map()
- ? kCacheOnPrototypeReceiverIsDictionary
- : kCacheOnPrototype;
- // Callers must ensure that the prototype is non-null.
- return handle(JSObject::cast(receiver_map->prototype())->map());
-}
-
-
-Handle<Map> IC::GetICCacheHolder(HeapType* type, Isolate* isolate,
- CacheHolderFlag* flag) {
- Context* native_context = *isolate->native_context();
- JSFunction* builtin_ctor = GetRootConstructor(type, native_context);
- if (builtin_ctor != NULL) {
- *flag = kCacheOnPrototype;
- return handle(builtin_ctor->initial_map());
- }
- *flag = kCacheOnReceiver;
- return TypeToMap(type, isolate);
-}
-
-
-IC::State CallIC::FeedbackToState(Handle<FixedArray> vector,
- Handle<Smi> slot) const {
- IC::State state = UNINITIALIZED;
- Object* feedback = vector->get(slot->value());
-
- if (feedback == *TypeFeedbackInfo::MegamorphicSentinel(isolate())) {
- state = GENERIC;
- } else if (feedback->IsAllocationSite() || feedback->IsJSFunction()) {
- state = MONOMORPHIC;
- } else {
- CHECK(feedback == *TypeFeedbackInfo::UninitializedSentinel(isolate()));
- }
-
- return state;
-}
-} } // namespace v8::internal
-
-#endif // V8_IC_INL_H_
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