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Unified Diff: src/mips/macro-assembler-mips.h

Issue 1140004: MIPS simple function calls... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: '' Created 10 years, 9 months ago
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Index: src/mips/macro-assembler-mips.h
===================================================================
--- src/mips/macro-assembler-mips.h (revision 4229)
+++ src/mips/macro-assembler-mips.h (working copy)
@@ -41,6 +41,7 @@
// unless we know exactly what we do.
// Registers aliases
+// cp is assumed to be a callee saved register.
const Register cp = s7; // JavaScript context pointer
const Register fp = s8_fp; // Alias fp
@@ -102,10 +103,10 @@
// Jump unconditionally to given label.
// We NEED a nop in the branch delay slot, as it used by v8, for example in
// CodeGenerator::ProcessDeferred().
+ // Currently the branch delay slot is filled by the MacroAssembler.
// Use rather b(Label) for code generation.
void jmp(Label* L) {
Branch(cc_always, L);
- nop();
}
// Load an object from the root table.
@@ -115,6 +116,11 @@
Heap::RootListIndex index,
Condition cond, Register src1, const Operand& src2);
+ // Load an external reference.
+ void LoadExternalReference(Register reg, ExternalReference ext) {
+ li(reg, Operand(ext));
+ }
+
// Sets the remembered set bit for [address+offset].
void RecordWrite(Register object, Register offset, Register scratch);
@@ -191,7 +197,6 @@
void Push(Register src, Condition cond, Register tst1, Register tst2) {
// Since we don't have conditionnal execution we use a Branch.
Branch(cond, 3, tst1, Operand(tst2));
- nop();
Addu(sp, sp, Operand(-kPointerSize));
sw(src, MemOperand(sp, 0));
}
@@ -209,6 +214,53 @@
}
+ // ---------------------------------------------------------------------------
+ // Activation frames
+
+ void EnterInternalFrame() { EnterFrame(StackFrame::INTERNAL); }
+ void LeaveInternalFrame() { LeaveFrame(StackFrame::INTERNAL); }
+
+ // Enter specific kind of exit frame; either EXIT or
+ // EXIT_DEBUG. Expects the number of arguments in register a0 and
+ // the builtin function to call in register a1.
+ // On output hold_argc, hold_function, and hold_argv are setup.
+ void EnterExitFrame(ExitFrame::Mode mode,
+ Register hold_argc,
+ Register hold_argv,
+ Register hold_function);
+
+ // Leave the current exit frame. Expects the return value in v0.
+ void LeaveExitFrame(ExitFrame::Mode mode);
+
+ // Align the stack by optionally pushing a Smi zero.
+ void AlignStack(int offset);
+
+ void SetupAlignedCall(Register scratch, int arg_count = 0);
+ void ReturnFromAlignedCall();
+
+
+ // ---------------------------------------------------------------------------
+ // JavaScript invokes
+
+ // Invoke the JavaScript function code by either calling or jumping.
+ void InvokeCode(Register code,
+ const ParameterCount& expected,
+ const ParameterCount& actual,
+ InvokeFlag flag);
+
+ void InvokeCode(Handle<Code> code,
+ const ParameterCount& expected,
+ const ParameterCount& actual,
+ RelocInfo::Mode rmode,
+ InvokeFlag flag);
+
+ // 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);
+
+
#ifdef ENABLE_DEBUGGER_SUPPORT
// ---------------------------------------------------------------------------
// Debugger Support
@@ -227,8 +279,7 @@
// Exception handling
// Push a new try handler and link into try handler chain.
- // The return address must be passed in register lr.
- // On exit, r0 contains TOS (code slot).
+ // The return address must be passed in register ra.
void PushTryHandler(CodeLocation try_location, HandlerType type);
// Unlink the stack handler on top of the stack from the try handler chain.
@@ -239,6 +290,10 @@
// ---------------------------------------------------------------------------
// Support functions.
+ void GetObjectType(Register function,
+ Register map,
+ Register type_reg);
+
inline void BranchOnSmi(Register value, Label* smi_label,
Register scratch = at) {
ASSERT_EQ(0, kSmiTag);
@@ -254,7 +309,16 @@
Branch(ne, not_smi_label, scratch, Operand(zero_reg));
}
+ void CallBuiltin(ExternalReference builtin_entry);
+ void CallBuiltin(Register target);
+ void JumpToBuiltin(ExternalReference builtin_entry);
+ void JumpToBuiltin(Register target);
+ // Generates code for reporting that an illegal operation has
+ // occurred.
+ void IllegalOperation(int num_arguments);
+
+
// ---------------------------------------------------------------------------
// Runtime calls
@@ -342,20 +406,33 @@
bool allow_stub_calls() { return allow_stub_calls_; }
private:
+ List<Unresolved> unresolved_;
+ bool generating_stub_;
+ bool allow_stub_calls_;
+ // This handle will be patched with the code object on installation.
+ Handle<Object> code_object_;
+
void Jump(intptr_t target, RelocInfo::Mode rmode, Condition cond = cc_always,
Register r1 = zero_reg, const Operand& r2 = Operand(zero_reg));
void Call(intptr_t target, RelocInfo::Mode rmode, Condition cond = cc_always,
Register r1 = zero_reg, const Operand& r2 = Operand(zero_reg));
+ // Helper functions for generating invokes.
+ void InvokePrologue(const ParameterCount& expected,
+ const ParameterCount& actual,
+ Handle<Code> code_constant,
+ Register code_reg,
+ Label* done,
+ InvokeFlag flag);
+
// Get the code for the given builtin. Returns if able to resolve
// the function in the 'resolved' flag.
Handle<Code> ResolveBuiltin(Builtins::JavaScript id, bool* resolved);
- List<Unresolved> unresolved_;
- bool generating_stub_;
- bool allow_stub_calls_;
- // This handle will be patched with the code object on installation.
- Handle<Object> code_object_;
+ // Activation support.
+ // EnterFrame clobbers t0 and t1.
+ void EnterFrame(StackFrame::Type type);
+ void LeaveFrame(StackFrame::Type type);
};
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