[Turbofan] Insert nops for lazy bailout patching, fix translation of literals.

src/compiler/x64/code-generator-x64.cc

Index: src/compiler/x64/code-generator-x64.cc
diff --git a/src/compiler/x64/code-generator-x64.cc b/src/compiler/x64/code-generator-x64.cc
index 0de838698bd75c081db0e3cb7dd26ee45a87882d..4d078b759608513a6cabd9b02e5d6a99215d0a68 100644
--- a/src/compiler/x64/code-generator-x64.cc
+++ b/src/compiler/x64/code-generator-x64.cc
@@ -205,6 +205,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
 
   switch (ArchOpcodeField::decode(instr->opcode())) {
     case kArchCallCodeObject: {
+      EnsureSpaceForLazyDeopt();
       if (HasImmediateInput(instr, 0)) {
         Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0));
         __ Call(code, RelocInfo::CODE_TARGET);
@@ -217,6 +218,7 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       break;
     }
     case kArchCallJSFunction: {
+      EnsureSpaceForLazyDeopt();
       Register func = i.InputRegister(0);
       if (FLAG_debug_code) {
         // Check the function's context matches the context argument.
@@ -991,6 +993,21 @@ void CodeGenerator::AssembleSwap(InstructionOperand* source,
 
 void CodeGenerator::AddNopForSmiCodeInlining() { __ nop(); }
 
+
+void CodeGenerator::EnsureSpaceForLazyDeopt() {
+  int space_needed = Deoptimizer::patch_size();
+  if (!linkage()->info()->IsStub()) {
+    // Ensure that we have enough space after the previous lazy-bailout
+    // instruction for patching the code here.
+    int current_pc = masm()->pc_offset();
+    if (current_pc < last_lazy_deopt_pc_ + space_needed) {
+      int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
+      __ Nop(padding_size);
+    }
+  }
+  MarkLazyDeoptSite();
+}
+
 #undef __
 
 }  // namespace internal