| Index: src/builtins-arm.cc
|
| diff --git a/src/builtins-arm.cc b/src/builtins-arm.cc
|
| deleted file mode 100644
|
| index 58eeca8c44b70e5b0eff5351b303c2f1bf5c589b..0000000000000000000000000000000000000000
|
| --- a/src/builtins-arm.cc
|
| +++ /dev/null
|
| @@ -1,659 +0,0 @@
|
| -// Copyright 2006-2008 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:
|
| -//
|
| -// * Redistributions of source code must retain the above copyright
|
| -// notice, this list of conditions and the following disclaimer.
|
| -// * Redistributions in binary form must reproduce the above
|
| -// copyright notice, this list of conditions and the following
|
| -// disclaimer in the documentation and/or other materials provided
|
| -// with the distribution.
|
| -// * Neither the name of Google Inc. nor the names of its
|
| -// contributors may be used to endorse or promote products derived
|
| -// from this software without specific prior written permission.
|
| -//
|
| -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
| -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
| -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
| -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
| -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
| -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
| -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
| -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
| -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
| -
|
| -#include "v8.h"
|
| -
|
| -#include "codegen-inl.h"
|
| -#include "debug.h"
|
| -#include "runtime.h"
|
| -
|
| -namespace v8 { namespace internal {
|
| -
|
| -
|
| -#define __ ACCESS_MASM(masm)
|
| -
|
| -
|
| -void Builtins::Generate_Adaptor(MacroAssembler* masm, CFunctionId id) {
|
| - // TODO(1238487): Don't pass the function in a static variable.
|
| - __ mov(ip, Operand(ExternalReference::builtin_passed_function()));
|
| - __ str(r1, MemOperand(ip, 0));
|
| -
|
| - // The actual argument count has already been loaded into register
|
| - // r0, but JumpToBuiltin expects r0 to contain the number of
|
| - // arguments including the receiver.
|
| - __ add(r0, r0, Operand(1));
|
| - __ JumpToBuiltin(ExternalReference(id));
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_JSConstructCall(MacroAssembler* masm) {
|
| - // ----------- S t a t e -------------
|
| - // -- r0 : number of arguments
|
| - // -- r1 : constructor function
|
| - // -- lr : return address
|
| - // -- sp[...]: constructor arguments
|
| - // -----------------------------------
|
| -
|
| - // Enter a construct frame.
|
| - __ EnterConstructFrame();
|
| -
|
| - // Preserve the two incoming parameters
|
| - __ mov(r0, Operand(r0, LSL, kSmiTagSize));
|
| - __ push(r0); // smi-tagged arguments count
|
| - __ push(r1); // constructor function
|
| -
|
| - // Allocate the new receiver object.
|
| - __ push(r1); // argument for Runtime_NewObject
|
| - __ CallRuntime(Runtime::kNewObject, 1);
|
| - __ push(r0); // save the receiver
|
| -
|
| - // Push the function and the allocated receiver from the stack.
|
| - // sp[0]: receiver (newly allocated object)
|
| - // sp[1]: constructor function
|
| - // sp[2]: number of arguments (smi-tagged)
|
| - __ ldr(r1, MemOperand(sp, kPointerSize));
|
| - __ push(r1); // function
|
| - __ push(r0); // receiver
|
| -
|
| - // Reload the number of arguments from the stack.
|
| - // r1: constructor function
|
| - // sp[0]: receiver
|
| - // sp[1]: constructor function
|
| - // sp[2]: receiver
|
| - // sp[3]: constructor function
|
| - // sp[4]: number of arguments (smi-tagged)
|
| - __ ldr(r3, MemOperand(sp, 4 * kPointerSize));
|
| -
|
| - // Setup pointer to last argument.
|
| - __ add(r2, fp, Operand(StandardFrameConstants::kCallerSPOffset));
|
| -
|
| - // Setup number of arguments for function call below
|
| - __ mov(r0, Operand(r3, LSR, kSmiTagSize));
|
| -
|
| - // Copy arguments and receiver to the expression stack.
|
| - // r0: number of arguments
|
| - // r2: address of last argument (caller sp)
|
| - // r1: constructor function
|
| - // r3: number of arguments (smi-tagged)
|
| - // sp[0]: receiver
|
| - // sp[1]: constructor function
|
| - // sp[2]: receiver
|
| - // sp[3]: constructor function
|
| - // sp[4]: number of arguments (smi-tagged)
|
| - Label loop, entry;
|
| - __ b(&entry);
|
| - __ bind(&loop);
|
| - __ ldr(ip, MemOperand(r2, r3, LSL, kPointerSizeLog2 - 1));
|
| - __ push(ip);
|
| - __ bind(&entry);
|
| - __ sub(r3, r3, Operand(2), SetCC);
|
| - __ b(ge, &loop);
|
| -
|
| - // Call the function.
|
| - // r0: number of arguments
|
| - // r1: constructor function
|
| - ParameterCount actual(r0);
|
| - __ InvokeFunction(r1, actual, CALL_FUNCTION);
|
| -
|
| - // Pop the function from the stack.
|
| - // sp[0]: constructor function
|
| - // sp[2]: receiver
|
| - // sp[3]: constructor function
|
| - // sp[4]: number of arguments (smi-tagged)
|
| - __ pop();
|
| -
|
| - // Restore context from the frame.
|
| - // r0: result
|
| - // sp[0]: receiver
|
| - // sp[1]: constructor function
|
| - // sp[2]: number of arguments (smi-tagged)
|
| - __ ldr(cp, MemOperand(fp, StandardFrameConstants::kContextOffset));
|
| -
|
| - // If the result is an object (in the ECMA sense), we should get rid
|
| - // of the receiver and use the result; see ECMA-262 section 13.2.2-7
|
| - // on page 74.
|
| - Label use_receiver, exit;
|
| -
|
| - // If the result is a smi, it is *not* an object in the ECMA sense.
|
| - // r0: result
|
| - // sp[0]: receiver (newly allocated object)
|
| - // sp[1]: constructor function
|
| - // sp[2]: number of arguments (smi-tagged)
|
| - __ tst(r0, Operand(kSmiTagMask));
|
| - __ b(eq, &use_receiver);
|
| -
|
| - // If the type of the result (stored in its map) is less than
|
| - // FIRST_JS_OBJECT_TYPE, it is not an object in the ECMA sense.
|
| - __ ldr(r3, FieldMemOperand(r0, HeapObject::kMapOffset));
|
| - __ ldrb(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
|
| - __ cmp(r3, Operand(FIRST_JS_OBJECT_TYPE));
|
| - __ b(ge, &exit);
|
| -
|
| - // Throw away the result of the constructor invocation and use the
|
| - // on-stack receiver as the result.
|
| - __ bind(&use_receiver);
|
| - __ ldr(r0, MemOperand(sp));
|
| -
|
| - // Remove receiver from the stack, remove caller arguments, and
|
| - // return.
|
| - __ bind(&exit);
|
| - // r0: result
|
| - // sp[0]: receiver (newly allocated object)
|
| - // sp[1]: constructor function
|
| - // sp[2]: number of arguments (smi-tagged)
|
| - __ ldr(r1, MemOperand(sp, 2 * kPointerSize));
|
| - __ LeaveConstructFrame();
|
| - __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - 1));
|
| - __ add(sp, sp, Operand(kPointerSize));
|
| - __ mov(pc, Operand(lr));
|
| -}
|
| -
|
| -
|
| -static void Generate_JSEntryTrampolineHelper(MacroAssembler* masm,
|
| - bool is_construct) {
|
| - // Called from Generate_JS_Entry
|
| - // r0: code entry
|
| - // r1: function
|
| - // r2: receiver
|
| - // r3: argc
|
| - // r4: argv
|
| - // r5-r7, cp may be clobbered
|
| -
|
| - // Clear the context before we push it when entering the JS frame.
|
| - __ mov(cp, Operand(0));
|
| -
|
| - // Enter an internal frame.
|
| - __ EnterInternalFrame();
|
| -
|
| - // Setup the context from the function argument.
|
| - __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
|
| -
|
| - // Push the function and the receiver onto the stack.
|
| - __ push(r1);
|
| - __ push(r2);
|
| -
|
| - // Copy arguments to the stack in a loop.
|
| - // r1: function
|
| - // r3: argc
|
| - // r4: argv, i.e. points to first arg
|
| - Label loop, entry;
|
| - __ add(r2, r4, Operand(r3, LSL, kPointerSizeLog2));
|
| - // r2 points past last arg.
|
| - __ b(&entry);
|
| - __ bind(&loop);
|
| - __ ldr(r0, MemOperand(r4, kPointerSize, PostIndex)); // read next parameter
|
| - __ ldr(r0, MemOperand(r0)); // dereference handle
|
| - __ push(r0); // push parameter
|
| - __ bind(&entry);
|
| - __ cmp(r4, Operand(r2));
|
| - __ b(ne, &loop);
|
| -
|
| - // Initialize all JavaScript callee-saved registers, since they will be seen
|
| - // by the garbage collector as part of handlers.
|
| - __ mov(r4, Operand(Factory::undefined_value()));
|
| - __ mov(r5, Operand(r4));
|
| - __ mov(r6, Operand(r4));
|
| - __ mov(r7, Operand(r4));
|
| - if (kR9Available == 1) {
|
| - __ mov(r9, Operand(r4));
|
| - }
|
| -
|
| - // Invoke the code and pass argc as r0.
|
| - __ mov(r0, Operand(r3));
|
| - if (is_construct) {
|
| - __ Call(Handle<Code>(Builtins::builtin(Builtins::JSConstructCall)),
|
| - RelocInfo::CODE_TARGET);
|
| - } else {
|
| - ParameterCount actual(r0);
|
| - __ InvokeFunction(r1, actual, CALL_FUNCTION);
|
| - }
|
| -
|
| - // Exit the JS frame and remove the parameters (except function), and return.
|
| - // Respect ABI stack constraint.
|
| - __ LeaveInternalFrame();
|
| - __ mov(pc, lr);
|
| -
|
| - // r0: result
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_JSEntryTrampoline(MacroAssembler* masm) {
|
| - Generate_JSEntryTrampolineHelper(masm, false);
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_JSConstructEntryTrampoline(MacroAssembler* masm) {
|
| - Generate_JSEntryTrampolineHelper(masm, true);
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_FunctionCall(MacroAssembler* masm) {
|
| - // 1. Make sure we have at least one argument.
|
| - // r0: actual number of argument
|
| - { Label done;
|
| - __ tst(r0, Operand(r0));
|
| - __ b(ne, &done);
|
| - __ mov(r2, Operand(Factory::undefined_value()));
|
| - __ push(r2);
|
| - __ add(r0, r0, Operand(1));
|
| - __ bind(&done);
|
| - }
|
| -
|
| - // 2. Get the function to call from the stack.
|
| - // r0: actual number of argument
|
| - { Label done, non_function, function;
|
| - __ ldr(r1, MemOperand(sp, r0, LSL, kPointerSizeLog2));
|
| - __ tst(r1, Operand(kSmiTagMask));
|
| - __ b(eq, &non_function);
|
| - __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset));
|
| - __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset));
|
| - __ cmp(r2, Operand(JS_FUNCTION_TYPE));
|
| - __ b(eq, &function);
|
| -
|
| - // Non-function called: Clear the function to force exception.
|
| - __ bind(&non_function);
|
| - __ mov(r1, Operand(0));
|
| - __ b(&done);
|
| -
|
| - // Change the context eagerly because it will be used below to get the
|
| - // right global object.
|
| - __ bind(&function);
|
| - __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
|
| -
|
| - __ bind(&done);
|
| - }
|
| -
|
| - // 3. Make sure first argument is an object; convert if necessary.
|
| - // r0: actual number of arguments
|
| - // r1: function
|
| - { Label call_to_object, use_global_receiver, patch_receiver, done;
|
| - __ add(r2, sp, Operand(r0, LSL, kPointerSizeLog2));
|
| - __ ldr(r2, MemOperand(r2, -kPointerSize));
|
| -
|
| - // r0: actual number of arguments
|
| - // r1: function
|
| - // r2: first argument
|
| - __ tst(r2, Operand(kSmiTagMask));
|
| - __ b(eq, &call_to_object);
|
| -
|
| - __ mov(r3, Operand(Factory::null_value()));
|
| - __ cmp(r2, r3);
|
| - __ b(eq, &use_global_receiver);
|
| - __ mov(r3, Operand(Factory::undefined_value()));
|
| - __ cmp(r2, r3);
|
| - __ b(eq, &use_global_receiver);
|
| -
|
| - __ ldr(r3, FieldMemOperand(r2, HeapObject::kMapOffset));
|
| - __ ldrb(r3, FieldMemOperand(r3, Map::kInstanceTypeOffset));
|
| - __ cmp(r3, Operand(FIRST_JS_OBJECT_TYPE));
|
| - __ b(lt, &call_to_object);
|
| - __ cmp(r3, Operand(LAST_JS_OBJECT_TYPE));
|
| - __ b(le, &done);
|
| -
|
| - __ bind(&call_to_object);
|
| - __ EnterInternalFrame();
|
| -
|
| - // Store number of arguments and function across the call into the runtime.
|
| - __ mov(r0, Operand(r0, LSL, kSmiTagSize));
|
| - __ push(r0);
|
| - __ push(r1);
|
| -
|
| - __ push(r2);
|
| - __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS);
|
| - __ mov(r2, r0);
|
| -
|
| - // Restore number of arguments and function.
|
| - __ pop(r1);
|
| - __ pop(r0);
|
| - __ mov(r0, Operand(r0, ASR, kSmiTagSize));
|
| -
|
| - __ LeaveInternalFrame();
|
| - __ b(&patch_receiver);
|
| -
|
| - // Use the global receiver object from the called function as the receiver.
|
| - __ bind(&use_global_receiver);
|
| - const int kGlobalIndex =
|
| - Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
|
| - __ ldr(r2, FieldMemOperand(cp, kGlobalIndex));
|
| - __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalReceiverOffset));
|
| -
|
| - __ bind(&patch_receiver);
|
| - __ add(r3, sp, Operand(r0, LSL, kPointerSizeLog2));
|
| - __ str(r2, MemOperand(r3, -kPointerSize));
|
| -
|
| - __ bind(&done);
|
| - }
|
| -
|
| - // 4. Shift stuff one slot down the stack
|
| - // r0: actual number of arguments (including call() receiver)
|
| - // r1: function
|
| - { Label loop;
|
| - // Calculate the copy start address (destination). Copy end address is sp.
|
| - __ add(r2, sp, Operand(r0, LSL, kPointerSizeLog2));
|
| - __ add(r2, r2, Operand(kPointerSize)); // copy receiver too
|
| -
|
| - __ bind(&loop);
|
| - __ ldr(ip, MemOperand(r2, -kPointerSize));
|
| - __ str(ip, MemOperand(r2));
|
| - __ sub(r2, r2, Operand(kPointerSize));
|
| - __ cmp(r2, sp);
|
| - __ b(ne, &loop);
|
| - }
|
| -
|
| - // 5. Adjust the actual number of arguments and remove the top element.
|
| - // r0: actual number of arguments (including call() receiver)
|
| - // r1: function
|
| - __ sub(r0, r0, Operand(1));
|
| - __ add(sp, sp, Operand(kPointerSize));
|
| -
|
| - // 6. Get the code for the function or the non-function builtin.
|
| - // If number of expected arguments matches, then call. Otherwise restart
|
| - // the arguments adaptor stub.
|
| - // r0: actual number of arguments
|
| - // r1: function
|
| - { Label invoke;
|
| - __ tst(r1, r1);
|
| - __ b(ne, &invoke);
|
| - __ mov(r2, Operand(0)); // expected arguments is 0 for CALL_NON_FUNCTION
|
| - __ GetBuiltinEntry(r3, Builtins::CALL_NON_FUNCTION);
|
| - __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
|
| - RelocInfo::CODE_TARGET);
|
| -
|
| - __ bind(&invoke);
|
| - __ ldr(r3, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
|
| - __ ldr(r2,
|
| - FieldMemOperand(r3,
|
| - SharedFunctionInfo::kFormalParameterCountOffset));
|
| - __ ldr(r3,
|
| - MemOperand(r3, SharedFunctionInfo::kCodeOffset - kHeapObjectTag));
|
| - __ add(r3, r3, Operand(Code::kHeaderSize - kHeapObjectTag));
|
| - __ cmp(r2, r0); // Check formal and actual parameter counts.
|
| - __ Jump(Handle<Code>(builtin(ArgumentsAdaptorTrampoline)),
|
| - RelocInfo::CODE_TARGET, ne);
|
| -
|
| - // 7. Jump to the code in r3 without checking arguments.
|
| - ParameterCount expected(0);
|
| - __ InvokeCode(r3, expected, expected, JUMP_FUNCTION);
|
| - }
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_FunctionApply(MacroAssembler* masm) {
|
| - const int kIndexOffset = -5 * kPointerSize;
|
| - const int kLimitOffset = -4 * kPointerSize;
|
| - const int kArgsOffset = 2 * kPointerSize;
|
| - const int kRecvOffset = 3 * kPointerSize;
|
| - const int kFunctionOffset = 4 * kPointerSize;
|
| -
|
| - __ EnterInternalFrame();
|
| -
|
| - __ ldr(r0, MemOperand(fp, kFunctionOffset)); // get the function
|
| - __ push(r0);
|
| - __ ldr(r0, MemOperand(fp, kArgsOffset)); // get the args array
|
| - __ push(r0);
|
| - __ InvokeBuiltin(Builtins::APPLY_PREPARE, CALL_JS);
|
| -
|
| - // Eagerly check for stack-overflow before starting to push the arguments.
|
| - // r0: number of arguments
|
| - Label okay;
|
| - ExternalReference stack_guard_limit_address =
|
| - ExternalReference::address_of_stack_guard_limit();
|
| - __ mov(r2, Operand(stack_guard_limit_address));
|
| - __ ldr(r2, MemOperand(r2));
|
| - __ sub(r2, sp, r2);
|
| - __ sub(r2, r2, Operand(3 * kPointerSize)); // limit, index, receiver
|
| -
|
| - __ cmp(r2, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
|
| - __ b(hi, &okay);
|
| -
|
| - // Out of stack space.
|
| - __ ldr(r1, MemOperand(fp, kFunctionOffset));
|
| - __ push(r1);
|
| - __ push(r0);
|
| - __ InvokeBuiltin(Builtins::APPLY_OVERFLOW, CALL_JS);
|
| -
|
| - // Push current limit and index.
|
| - __ bind(&okay);
|
| - __ push(r0); // limit
|
| - __ mov(r1, Operand(0)); // initial index
|
| - __ push(r1);
|
| -
|
| - // Change context eagerly to get the right global object if necessary.
|
| - __ ldr(r0, MemOperand(fp, kFunctionOffset));
|
| - __ ldr(cp, FieldMemOperand(r0, JSFunction::kContextOffset));
|
| -
|
| - // Compute the receiver.
|
| - Label call_to_object, use_global_receiver, push_receiver;
|
| - __ ldr(r0, MemOperand(fp, kRecvOffset));
|
| - __ tst(r0, Operand(kSmiTagMask));
|
| - __ b(eq, &call_to_object);
|
| - __ mov(r1, Operand(Factory::null_value()));
|
| - __ cmp(r0, r1);
|
| - __ b(eq, &use_global_receiver);
|
| - __ mov(r1, Operand(Factory::undefined_value()));
|
| - __ cmp(r0, r1);
|
| - __ b(eq, &use_global_receiver);
|
| -
|
| - // Check if the receiver is already a JavaScript object.
|
| - // r0: receiver
|
| - __ ldr(r1, FieldMemOperand(r0, HeapObject::kMapOffset));
|
| - __ ldrb(r1, FieldMemOperand(r1, Map::kInstanceTypeOffset));
|
| - __ cmp(r1, Operand(FIRST_JS_OBJECT_TYPE));
|
| - __ b(lt, &call_to_object);
|
| - __ cmp(r1, Operand(LAST_JS_OBJECT_TYPE));
|
| - __ b(le, &push_receiver);
|
| -
|
| - // Convert the receiver to a regular object.
|
| - // r0: receiver
|
| - __ bind(&call_to_object);
|
| - __ push(r0);
|
| - __ InvokeBuiltin(Builtins::TO_OBJECT, CALL_JS);
|
| - __ b(&push_receiver);
|
| -
|
| - // Use the current global receiver object as the receiver.
|
| - __ bind(&use_global_receiver);
|
| - const int kGlobalOffset =
|
| - Context::kHeaderSize + Context::GLOBAL_INDEX * kPointerSize;
|
| - __ ldr(r0, FieldMemOperand(cp, kGlobalOffset));
|
| - __ ldr(r0, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset));
|
| -
|
| - // Push the receiver.
|
| - // r0: receiver
|
| - __ bind(&push_receiver);
|
| - __ push(r0);
|
| -
|
| - // Copy all arguments from the array to the stack.
|
| - Label entry, loop;
|
| - __ ldr(r0, MemOperand(fp, kIndexOffset));
|
| - __ b(&entry);
|
| -
|
| - // Load the current argument from the arguments array and push it to the
|
| - // stack.
|
| - // r0: current argument index
|
| - __ bind(&loop);
|
| - __ ldr(r1, MemOperand(fp, kArgsOffset));
|
| - __ push(r1);
|
| - __ push(r0);
|
| -
|
| - // Call the runtime to access the property in the arguments array.
|
| - __ CallRuntime(Runtime::kGetProperty, 2);
|
| - __ push(r0);
|
| -
|
| - // Use inline caching to access the arguments.
|
| - __ ldr(r0, MemOperand(fp, kIndexOffset));
|
| - __ add(r0, r0, Operand(1 << kSmiTagSize));
|
| - __ str(r0, MemOperand(fp, kIndexOffset));
|
| -
|
| - // Test if the copy loop has finished copying all the elements from the
|
| - // arguments object.
|
| - __ bind(&entry);
|
| - __ ldr(r1, MemOperand(fp, kLimitOffset));
|
| - __ cmp(r0, r1);
|
| - __ b(ne, &loop);
|
| -
|
| - // Invoke the function.
|
| - ParameterCount actual(r0);
|
| - __ mov(r0, Operand(r0, ASR, kSmiTagSize));
|
| - __ ldr(r1, MemOperand(fp, kFunctionOffset));
|
| - __ InvokeFunction(r1, actual, CALL_FUNCTION);
|
| -
|
| - // Tear down the internal frame and remove function, receiver and args.
|
| - __ LeaveInternalFrame();
|
| - __ add(sp, sp, Operand(3 * kPointerSize));
|
| - __ mov(pc, lr);
|
| -}
|
| -
|
| -
|
| -static void EnterArgumentsAdaptorFrame(MacroAssembler* masm) {
|
| - __ mov(r0, Operand(r0, LSL, kSmiTagSize));
|
| - __ mov(r4, Operand(ArgumentsAdaptorFrame::SENTINEL));
|
| - __ stm(db_w, sp, r0.bit() | r1.bit() | r4.bit() | fp.bit() | lr.bit());
|
| - __ add(fp, sp, Operand(3 * kPointerSize));
|
| -}
|
| -
|
| -
|
| -static void LeaveArgumentsAdaptorFrame(MacroAssembler* masm) {
|
| - // ----------- S t a t e -------------
|
| - // -- r0 : result being passed through
|
| - // -----------------------------------
|
| - // Get the number of arguments passed (as a smi), tear down the frame and
|
| - // then tear down the parameters.
|
| - __ ldr(r1, MemOperand(fp, -3 * kPointerSize));
|
| - __ mov(sp, fp);
|
| - __ ldm(ia_w, sp, fp.bit() | lr.bit());
|
| - __ add(sp, sp, Operand(r1, LSL, kPointerSizeLog2 - kSmiTagSize));
|
| - __ add(sp, sp, Operand(kPointerSize)); // adjust for receiver
|
| -}
|
| -
|
| -
|
| -void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
|
| - // ----------- S t a t e -------------
|
| - // -- r0 : actual number of arguments
|
| - // -- r1 : function (passed through to callee)
|
| - // -- r2 : expected number of arguments
|
| - // -- r3 : code entry to call
|
| - // -----------------------------------
|
| -
|
| - Label invoke, dont_adapt_arguments;
|
| -
|
| - Label enough, too_few;
|
| - __ cmp(r0, Operand(r2));
|
| - __ b(lt, &too_few);
|
| - __ cmp(r2, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel));
|
| - __ b(eq, &dont_adapt_arguments);
|
| -
|
| - { // Enough parameters: actual >= expected
|
| - __ bind(&enough);
|
| - EnterArgumentsAdaptorFrame(masm);
|
| -
|
| - // Calculate copy start address into r0 and copy end address into r2.
|
| - // r0: actual number of arguments as a smi
|
| - // r1: function
|
| - // r2: expected number of arguments
|
| - // r3: code entry to call
|
| - __ add(r0, fp, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
|
| - // adjust for return address and receiver
|
| - __ add(r0, r0, Operand(2 * kPointerSize));
|
| - __ sub(r2, r0, Operand(r2, LSL, kPointerSizeLog2));
|
| -
|
| - // Copy the arguments (including the receiver) to the new stack frame.
|
| - // r0: copy start address
|
| - // r1: function
|
| - // r2: copy end address
|
| - // r3: code entry to call
|
| -
|
| - Label copy;
|
| - __ bind(©);
|
| - __ ldr(ip, MemOperand(r0, 0));
|
| - __ push(ip);
|
| - __ cmp(r0, r2); // Compare before moving to next argument.
|
| - __ sub(r0, r0, Operand(kPointerSize));
|
| - __ b(ne, ©);
|
| -
|
| - __ b(&invoke);
|
| - }
|
| -
|
| - { // Too few parameters: Actual < expected
|
| - __ bind(&too_few);
|
| - EnterArgumentsAdaptorFrame(masm);
|
| -
|
| - // Calculate copy start address into r0 and copy end address is fp.
|
| - // r0: actual number of arguments as a smi
|
| - // r1: function
|
| - // r2: expected number of arguments
|
| - // r3: code entry to call
|
| - __ add(r0, fp, Operand(r0, LSL, kPointerSizeLog2 - kSmiTagSize));
|
| -
|
| - // Copy the arguments (including the receiver) to the new stack frame.
|
| - // r0: copy start address
|
| - // r1: function
|
| - // r2: expected number of arguments
|
| - // r3: code entry to call
|
| - Label copy;
|
| - __ bind(©);
|
| - // Adjust load for return address and receiver.
|
| - __ ldr(ip, MemOperand(r0, 2 * kPointerSize));
|
| - __ push(ip);
|
| - __ cmp(r0, fp); // Compare before moving to next argument.
|
| - __ sub(r0, r0, Operand(kPointerSize));
|
| - __ b(ne, ©);
|
| -
|
| - // Fill the remaining expected arguments with undefined.
|
| - // r1: function
|
| - // r2: expected number of arguments
|
| - // r3: code entry to call
|
| - __ mov(ip, Operand(Factory::undefined_value()));
|
| - __ sub(r2, fp, Operand(r2, LSL, kPointerSizeLog2));
|
| - __ sub(r2, r2, Operand(4 * kPointerSize)); // Adjust for frame.
|
| -
|
| - Label fill;
|
| - __ bind(&fill);
|
| - __ push(ip);
|
| - __ cmp(sp, r2);
|
| - __ b(ne, &fill);
|
| - }
|
| -
|
| - // Call the entry point.
|
| - __ bind(&invoke);
|
| - __ Call(r3);
|
| -
|
| - // Exit frame and return.
|
| - LeaveArgumentsAdaptorFrame(masm);
|
| - __ mov(pc, lr);
|
| -
|
| -
|
| - // -------------------------------------------
|
| - // Dont adapt arguments.
|
| - // -------------------------------------------
|
| - __ bind(&dont_adapt_arguments);
|
| - __ mov(pc, r3);
|
| -}
|
| -
|
| -
|
| -#undef __
|
| -
|
| -} } // namespace v8::internal
|
|
|