Add --trace flag to fast compiler.

Review URL: http://codereview.chromium.org/306026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3111 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/fast-codegen-arm.cc

@@ -90,6 +90,10 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     VisitDeclarations(fun->scope()->declarations());
   }
 
+  if (FLAG_trace) {
+    __ CallRuntime(Runtime::kTraceEnter, 0);
+  }
+
   { Comment cmnt(masm_, "[ Body");
     VisitStatements(fun->body());
   }
@@ -99,6 +103,13 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     // body.
     __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
     SetReturnPosition(fun);
+    if (FLAG_trace) {
+      // Push the return value on the stack as the parameter.
+      // Runtime::TraceExit returns its parameter in r0.
+      __ push(r0);
+      __ CallRuntime(Runtime::kTraceExit, 1);
+    }
+
     __ RecordJSReturn();
     __ mov(sp, fp);
     __ ldm(ia_w, sp, fp.bit() | lr.bit());
@@ -150,6 +161,14 @@ void FastCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
     ASSERT(expr->AsLiteral() != NULL);
     __ mov(r0, Operand(expr->AsLiteral()->handle()));
   }
+
+  if (FLAG_trace) {
+    // Push the return value on the stack as the parameter.
+    // Runtime::TraceExit returns its parameter in r0.
+    __ push(r0);
+    __ CallRuntime(Runtime::kTraceExit, 1);
+  }
+
   __ RecordJSReturn();
   __ mov(sp, fp);
   __ ldm(ia_w, sp, fp.bit() | lr.bit());

src/ia32/fast-codegen-ia32.cc

@@ -80,6 +80,10 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     VisitDeclarations(fun->scope()->declarations());
   }
 
+  if (FLAG_trace) {
+    __ CallRuntime(Runtime::kTraceEnter, 0);
+  }
+
   { Comment cmnt(masm_, "[ Body");
     VisitStatements(fun->body());
   }
@@ -89,6 +93,11 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     // body.
     __ mov(eax, Factory::undefined_value());
     SetReturnPosition(fun);
+
+    if (FLAG_trace) {
+      __ push(eax);
+      __ CallRuntime(Runtime::kTraceExit, 1);
+    }
     __ RecordJSReturn();
     // Do not use the leave instruction here because it is too short to
     // patch with the code required by the debugger.
@@ -139,7 +148,12 @@ void FastCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
     ASSERT(expr->AsLiteral() != NULL);
     __ mov(eax, expr->AsLiteral()->handle());
   }
+  if (FLAG_trace) {
+    __ push(eax);
+    __ CallRuntime(Runtime::kTraceExit, 1);
+  }
   __ RecordJSReturn();
+
   // Do not use the leave instruction here because it is too short to
   // patch with the code required by the debugger.
   __ mov(esp, ebp);

src/x64/fast-codegen-x64.cc

@@ -79,6 +79,10 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     VisitDeclarations(fun->scope()->declarations());
   }
 
+  if (FLAG_trace) {
+    __ CallRuntime(Runtime::kTraceEnter, 0);
+  }
+
   { Comment cmnt(masm_, "[ Body");
     VisitStatements(fun->body());
   }
@@ -88,7 +92,12 @@ void FastCodeGenerator::Generate(FunctionLiteral* fun) {
     // body.
     __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
     SetReturnPosition(fun);
+    if (FLAG_trace) {
+      __ push(rax);
+      __ CallRuntime(Runtime::kTraceExit, 1);
+    }
     __ RecordJSReturn();
+
     // Do not use the leave instruction here because it is too short to
     // patch with the code required by the debugger.
     __ movq(rsp, rbp);
@@ -147,6 +156,11 @@ void FastCodeGenerator::VisitReturnStatement(ReturnStatement* stmt) {
     ASSERT(expr->AsLiteral() != NULL);
     __ Move(rax, expr->AsLiteral()->handle());
   }
+  if (FLAG_trace) {
+    __ push(rax);
+    __ CallRuntime(Runtime::kTraceExit, 1);
+  }
+
   __ RecordJSReturn();
   // Do not use the leave instruction here because it is too short to
   // patch with the code required by the debugger.