--- /dev/null
+// Copyright 2009 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 "fast-codegen.h"
+
+namespace v8 {
+namespace internal {
+
+#define __ ACCESS_MASM(masm_)
+
+// Generate code for a JS function. On entry to the function the receiver
+// and arguments have been pushed on the stack left to right. The actual
+// argument count matches the formal parameter count expected by the
+// function.
+//
+// The live registers are:
+// o r1: the JS function object being called (ie, ourselves)
+// o cp: our context
+// o fp: our caller's frame pointer
+// o sp: stack pointer
+// o lr: return address
+//
+// The function builds a JS frame. Please see JavaScriptFrameConstants in
+// frames-arm.h for its layout.
+void FastCodeGenerator::Generate(FunctionLiteral* fun) {
+ function_ = fun;
+
+ __ stm(db_w, sp, r1.bit() | cp.bit() | fp.bit() | lr.bit());
+ // Adjust fp to point to caller's fp.
+ __ add(fp, sp, Operand(2 * kPointerSize));
+
+ { Comment cmnt(masm_, "[ Allocate locals");
+ int locals_count = fun->scope()->num_stack_slots();
+ if (locals_count > 0) {
+ __ LoadRoot(ip, Heap::kUndefinedValueRootIndex);
+ }
+ if (FLAG_check_stack) {
+ __ LoadRoot(r2, Heap::kStackLimitRootIndex);
+ }
+ for (int i = 0; i < locals_count; i++) {
+ __ push(ip);
+ }
+ }
+
+ if (FLAG_check_stack) {
+ // Put the lr setup instruction in the delay slot. The kInstrSize is
+ // added to the implicit 8 byte offset that always applies to operations
+ // with pc and gives a return address 12 bytes down.
+ Comment cmnt(masm_, "[ Stack check");
+ __ add(lr, pc, Operand(Assembler::kInstrSize));
+ __ cmp(sp, Operand(r2));
+ StackCheckStub stub;
+ __ mov(pc,
+ Operand(reinterpret_cast<intptr_t>(stub.GetCode().location()),
+ RelocInfo::CODE_TARGET),
+ LeaveCC,
+ lo);
+ }
+
+ { Comment cmnt(masm_, "[ Body");
+ VisitStatements(fun->body());
+ }
+
+ { Comment cmnt(masm_, "[ return <undefined>;");
+ // Emit a 'return undefined' in case control fell off the end of the
+ // body.
+ __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
+ __ RecordJSReturn();
+ __ mov(sp, fp);
+ __ ldm(ia_w, sp, fp.bit() | lr.bit());
+ int num_parameters = function_->scope()->num_parameters();
+ __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize));
+ __ Jump(lr);
+ }
+}
+
+
+void FastCodeGenerator::VisitExpressionStatement(ExpressionStatement* stmt) {
+ Comment cmnt(masm_, "[ ExpressionStatement");
+ Visit(stmt->expression());
+ __ pop();
+}
+
+
+void FastCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
+ Comment cmnt(masm_, "[ ReturnStatement");
+ Visit(stmt->expression());
+ __ pop(r0);
+ __ RecordJSReturn();
+ __ mov(sp, fp);
+ __ ldm(ia_w, sp, fp.bit() | lr.bit());
+ int num_parameters = function_->scope()->num_parameters();
+ __ add(sp, sp, Operand((num_parameters + 1) * kPointerSize));
+ __ Jump(lr);
+}
+
+
+void FastCodeGenerator::VisitSlot(Slot* expr) {
+ Comment cmnt(masm_, "[ Slot");
+ __ ldr(ip, MemOperand(fp, SlotOffset(expr)));
+ __ push(ip);
+}
+
+
+void FastCodeGenerator::VisitLiteral(Literal* expr) {
+ Comment cmnt(masm_, "[ Literal");
+ __ mov(ip, Operand(expr->handle()));
+ __ push(ip);
+}
+
+
+void FastCodeGenerator::VisitAssignment(Assignment* expr) {
+ Comment cmnt(masm_, "[ Assignment");
+ ASSERT(expr->op() == Token::ASSIGN || expr->op() == Token::INIT_VAR);
+
+ Visit(expr->value());
+
+ Variable* var = expr->target()->AsVariableProxy()->AsVariable();
+ ASSERT(var != NULL && var->slot() != NULL);
+ __ ldr(ip, MemOperand(sp));
+ __ str(ip, MemOperand(fp, SlotOffset(var->slot())));
+}
+
+
+} } // namespace v8::internal
'../../src/execution.h',
'../../src/factory.cc',
'../../src/factory.h',
+ '../../src/fast-codegen.cc',
+ '../../src/fast-codegen.h',
'../../src/flag-definitions.h',
'../../src/flags.cc',
'../../src/flags.h',
+ '../../src/frame-element.cc',
+ '../../src/frame-element.h',
'../../src/frames-inl.h',
'../../src/frames.cc',
'../../src/frames.h',
- '../../src/frame-element.cc',
- '../../src/frame-element.h',
'../../src/func-name-inferrer.cc',
'../../src/func-name-inferrer.h',
'../../src/global-handles.cc',
'../../src/arm/cpu-arm.cc',
'../../src/arm/debug-arm.cc',
'../../src/arm/disasm-arm.cc',
+ '../../src/arm/fast-codegen-arm.cc',
'../../src/arm/frames-arm.cc',
'../../src/arm/frames-arm.h',
'../../src/arm/ic-arm.cc',
'../../src/ia32',
],
'sources': [
- '../../src/fast-codegen.cc',
- '../../src/fast-codegen.h',
'../../src/ia32/assembler-ia32-inl.h',
'../../src/ia32/assembler-ia32.cc',
'../../src/ia32/assembler-ia32.h',
'../../src/x64',
],
'sources': [
- '../../src/fast-codegen.cc',
- '../../src/fast-codegen.h',
'../../src/x64/assembler-x64-inl.h',
'../../src/x64/assembler-x64.cc',
'../../src/x64/assembler-x64.h',
projects / platform / upstream / v8.git / commitdiff