Update V8 to r6101 as required by WebKit r74534
Change-Id: I7f84af8dd732f11898fd644b2c2b1538914cb78d
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index d208dbe..6f5fa87 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -1,4 +1,4 @@
-// Copyright 2006-2009 the V8 project authors. All rights reserved.
+// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
@@ -51,6 +51,7 @@
// Forward declaration.
class JumpTarget;
+class PostCallGenerator;
// MacroAssembler implements a collection of frequently used macros.
class MacroAssembler: public Assembler {
@@ -69,10 +70,11 @@
// Check if object is in new space.
// scratch can be object itself, but it will be clobbered.
+ template <typename LabelType>
void InNewSpace(Register object,
Register scratch,
Condition cc, // equal for new space, not_equal otherwise.
- Label* branch);
+ LabelType* branch);
// For page containing |object| mark region covering [object+offset]
// dirty. |object| is the object being stored into, |value| is the
@@ -103,12 +105,6 @@
#endif
// ---------------------------------------------------------------------------
- // Stack limit support
-
- // Do simple test for stack overflow. This doesn't handle an overflow.
- void StackLimitCheck(Label* on_stack_limit_hit);
-
- // ---------------------------------------------------------------------------
// Activation frames
void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); }
@@ -117,18 +113,18 @@
void EnterConstructFrame() { EnterFrame(StackFrame::CONSTRUCT); }
void LeaveConstructFrame() { LeaveFrame(StackFrame::CONSTRUCT); }
- // Enter specific kind of exit frame; either in normal or debug mode.
- // Expects the number of arguments in register eax and
- // sets up the number of arguments in register edi and the pointer
- // to the first argument in register esi.
- void EnterExitFrame();
+ // Enter specific kind of exit frame. Expects the number of
+ // arguments in register eax and sets up the number of arguments in
+ // register edi and the pointer to the first argument in register
+ // esi.
+ void EnterExitFrame(bool save_doubles);
void EnterApiExitFrame(int argc);
// Leave the current exit frame. Expects the return value in
// register eax:edx (untouched) and the pointer to the first
// argument in register esi.
- void LeaveExitFrame();
+ void LeaveExitFrame(bool save_doubles);
// Leave the current exit frame. Expects the return value in
// register eax (untouched).
@@ -144,6 +140,11 @@
// function and map can be the same.
void LoadGlobalFunctionInitialMap(Register function, Register map);
+ // Push and pop the registers that can hold pointers.
+ void PushSafepointRegisters() { pushad(); }
+ void PopSafepointRegisters() { popad(); }
+ static int SafepointRegisterStackIndex(int reg_code);
+
// ---------------------------------------------------------------------------
// JavaScript invokes
@@ -151,27 +152,33 @@
void InvokeCode(const Operand& code,
const ParameterCount& expected,
const ParameterCount& actual,
- InvokeFlag flag);
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
void InvokeCode(Handle<Code> code,
const ParameterCount& expected,
const ParameterCount& actual,
RelocInfo::Mode rmode,
- InvokeFlag flag);
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
// Invoke the JavaScript function in the given register. Changes the
// current context to the context in the function before invoking.
void InvokeFunction(Register function,
const ParameterCount& actual,
- InvokeFlag flag);
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
void InvokeFunction(JSFunction* function,
const ParameterCount& actual,
- InvokeFlag flag);
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
// Invoke specified builtin JavaScript function. Adds an entry to
// the unresolved list if the name does not resolve.
- void InvokeBuiltin(Builtins::JavaScript id, InvokeFlag flag);
+ void InvokeBuiltin(Builtins::JavaScript id,
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
// Store the function for the given builtin in the target register.
void GetBuiltinFunction(Register target, Builtins::JavaScript id);
@@ -457,6 +464,7 @@
// Call a runtime routine.
void CallRuntime(Runtime::Function* f, int num_arguments);
+ void CallRuntimeSaveDoubles(Runtime::FunctionId id);
// Call a runtime function, returning the CodeStub object called.
// Try to generate the stub code if necessary. Do not perform a GC
@@ -546,6 +554,12 @@
void Call(Label* target) { call(target); }
+ // Emit call to the code we are currently generating.
+ void CallSelf() {
+ Handle<Code> self(reinterpret_cast<Code**>(CodeObject().location()));
+ call(self, RelocInfo::CODE_TARGET);
+ }
+
// Move if the registers are not identical.
void Move(Register target, Register source);
@@ -618,14 +632,15 @@
Handle<Code> code_constant,
const Operand& code_operand,
Label* done,
- InvokeFlag flag);
+ InvokeFlag flag,
+ PostCallGenerator* post_call_generator = NULL);
// Activation support.
void EnterFrame(StackFrame::Type type);
void LeaveFrame(StackFrame::Type type);
void EnterExitFramePrologue();
- void EnterExitFrameEpilogue(int argc);
+ void EnterExitFrameEpilogue(int argc, bool save_doubles);
void LeaveExitFrameEpilogue();
@@ -644,6 +659,31 @@
};
+template <typename LabelType>
+void MacroAssembler::InNewSpace(Register object,
+ Register scratch,
+ Condition cc,
+ LabelType* branch) {
+ ASSERT(cc == equal || cc == not_equal);
+ if (Serializer::enabled()) {
+ // Can't do arithmetic on external references if it might get serialized.
+ mov(scratch, Operand(object));
+ // The mask isn't really an address. We load it as an external reference in
+ // case the size of the new space is different between the snapshot maker
+ // and the running system.
+ and_(Operand(scratch), Immediate(ExternalReference::new_space_mask()));
+ cmp(Operand(scratch), Immediate(ExternalReference::new_space_start()));
+ j(cc, branch);
+ } else {
+ int32_t new_space_start = reinterpret_cast<int32_t>(
+ ExternalReference::new_space_start().address());
+ lea(scratch, Operand(object, -new_space_start));
+ and_(scratch, Heap::NewSpaceMask());
+ j(cc, branch);
+ }
+}
+
+
// The code patcher is used to patch (typically) small parts of code e.g. for
// debugging and other types of instrumentation. When using the code patcher
// the exact number of bytes specified must be emitted. Is not legal to emit
@@ -664,6 +704,17 @@
};
+// Helper class for generating code or data associated with the code
+// right after a call instruction. As an example this can be used to
+// generate safepoint data after calls for crankshaft.
+class PostCallGenerator {
+ public:
+ PostCallGenerator() { }
+ virtual ~PostCallGenerator() { }
+ virtual void Generate() = 0;
+};
+
+
// -----------------------------------------------------------------------------
// Static helper functions.