Enable stub generation using Hydrogen/Lithium (again)

src/safepoint-table.cc

Index: src/safepoint-table.cc
diff --git a/src/safepoint-table.cc b/src/safepoint-table.cc
index 714e5c3977f7b8a5ac99ece038733e893edbbc30..7ee23d4c683c0ef7b31e59a2606511370c8d5c1d 100644
--- a/src/safepoint-table.cc
+++ b/src/safepoint-table.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 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:
@@ -59,7 +59,8 @@ bool SafepointEntry::HasRegisterAt(int reg_index) const {
 
 
 SafepointTable::SafepointTable(Code* code) {
-  ASSERT(code->kind() == Code::OPTIMIZED_FUNCTION);
+  ASSERT(code->kind() == Code::OPTIMIZED_FUNCTION ||
+         code->kind() == Code::COMPILED_STUB);
   code_ = code;
   Address header = code->instruction_start() + code->safepoint_table_offset();
   length_ = Memory::uint32_at(header + kLengthOffset);
@@ -158,14 +159,6 @@ unsigned SafepointTableBuilder::GetCodeOffset() const {
 
 
 void SafepointTableBuilder::Emit(Assembler* assembler, int bits_per_entry) {
-  // For lazy deoptimization we need space to patch a call after every call.
-  // Ensure there is always space for such patching, even if the code ends
-  // in a call.
-  int target_offset = assembler->pc_offset() + Deoptimizer::patch_size();

[Jakob Kummerow, 2012/11/19 12:36:00]

Please make sure it's safe not to do this.

[danno, 2012/11/26 17:16:18]

Done.

-  while (assembler->pc_offset() < target_offset) {
-    assembler->nop();
-  }
-
   // Make sure the safepoint table is properly aligned. Pad with nops.
   assembler->Align(kIntSize);
   assembler->RecordComment(";;; Safepoint table.");