[turbofan] move label generation to code generator

src/compiler/code-generator.h

Index: src/compiler/code-generator.h
diff --git a/src/compiler/code-generator.h b/src/compiler/code-generator.h
index 2184a8405d5757993010ca8ab68aaecf4d78e565..47c0ede83242ab1244d43db6541c682453b9bd94 100644
--- a/src/compiler/code-generator.h
+++ b/src/compiler/code-generator.h
@@ -33,6 +33,8 @@ class CodeGenerator FINAL : public GapResolver::Assembler {
   Isolate* isolate() const { return zone()->isolate(); }
   Linkage* linkage() const { return linkage_; }
 
+  Label* GetLabel(BasicBlock::RpoNumber rpo) { return &labels_[rpo.ToSize()]; }
+
  private:
   MacroAssembler* masm() { return &masm_; }
   GapResolver* resolver() { return &resolver_; }
@@ -118,10 +120,14 @@ class CodeGenerator FINAL : public GapResolver::Assembler {
     int pc_offset_;
   };
 
+  // TODO(dcarney): zone allocate so these are accounted for.
+  typedef std::vector<Label> Labels;

[Benedikt Meurer, 2014/11/06 12:53:31]

Nit: ZoneVector<Label>

[dcarney, 2014/11/06 13:07:56]

no can do - Label is BASE_EMBEDDED

+
   Frame* const frame_;
   Linkage* const linkage_;
   InstructionSequence* const code_;
   CompilationInfo* const info_;
+  Labels labels_;
   BasicBlock::RpoNumber current_block_;
   SourcePosition current_source_position_;
   MacroAssembler masm_;