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Unified Diff: src/builtins-arm.cc

Issue 92068: Move backend specific files to separate directories. (Closed)
Patch Set: Added CPPPATH flag and made all includes use same base path. Created 11 years, 8 months ago
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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(&copy);
- __ ldr(ip, MemOperand(r0, 0));
- __ push(ip);
- __ cmp(r0, r2); // Compare before moving to next argument.
- __ sub(r0, r0, Operand(kPointerSize));
- __ b(ne, &copy);
-
- __ 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(&copy);
- // 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, &copy);
-
- // 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
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