Break Crankshaft into phases.

src/mips/lithium-mips.h

Index: src/mips/lithium-mips.h
diff --git a/src/mips/lithium-mips.h b/src/mips/lithium-mips.h
index 6c1af6350f8e798474bd08cafb58c1da7211a5f8..7acffcee77ef922be5dd25eedab59153fba7638f 100644
--- a/src/mips/lithium-mips.h
+++ b/src/mips/lithium-mips.h
@@ -2195,6 +2195,10 @@ class LChunk: public LChunkBase {
 
   int GetNextSpillIndex(bool is_double);
   LOperand* GetNextSpillSlot(bool is_double);
+
+  static LChunk* cast(LChunkBase* chunk_base) {
+    return reinterpret_cast<LChunk*>(chunk_base);

[danno, 2012/07/12 11:14:54]

I am not sure if this (and others in ia32/x64/ARM) add any value. Elsewhere in
the runtime, the cast function does additional runtime checks to make sure the
cast is valid, justifying the existence of the extra function. Here, no such
check is possible, so I think it's probably better/simpler/less code just to do
the static_cast directly in the LCodeGen constructor.

[sanjoy, 2012/07/12 11:34:18]

Done.

+  }
 };