Quick compiler: restore optimizations

This CL re-enables optizations on the Quick compile path.
Notes:

  o Although all optimization are enabled, several are now useless
    because of llvm and bitcode constraints:
      - Large method de-optimization (i.e. - skipping expensive dataflow
        analysis) can't be done because we have to do the analysis to
        produce a CFG that makes the bitcode verifier happy.
      - Small method pattern matching isn't applicable w/ bitcode (though
        I can probably do something similar in the Quick backend, but
        looking for bitcode instead of dex patterns).
      - Branch fusing doesn't translate to bitcode.
      - Bitcode generation has de-optimized code layout.  We'll try to
        repair the damage in a subsequent CL.

  o There is an ugly workaround related to the way we're loading and
    unloading the compiler .so containing llvm. [See comment in compiler.cc]

  o We're still running single-threaded - need to add the magic to allow
    multi-threaded use of llvm.

  o With the CL, the phone boots, all target tests pass and all cts VM
    tests pass (except those being dealt with via a verifier change).

  o Compile time is pretty bad - when flashing it's best to follow
    with an adb sync to avoid on-device compilation of system apps.

Change-Id: I1c98f9e64aefbcbd24b957c71544c28450eb2023

1 files changed, 3 insertions, 0 deletions

diff --git a/src/compiler/codegen/Ralloc.h b/src/compiler/codegen/Ralloc.h
index d1518e8e3f..db8fc7dd47 100644
--- a/src/compiler/codegen/Ralloc.h
+++ b/src/compiler/codegen/Ralloc.h
@@ -198,6 +198,9 @@ extern int oatSRegOffset(CompilationUnit* cUnit, int reg);
 extern void oatCountRefs(CompilationUnit*, BasicBlock*, RefCounts*, RefCounts*);
 extern int oatSortCounts(const void *val1, const void *val2);
 extern void oatDumpCounts(const RefCounts* arr, int size, const char* msg);
+extern void oatRecordCorePromotion(CompilationUnit* cUnit, int reg, int sReg);
+extern void oatRecordFpPromotion(CompilationUnit* cUnit, int reg, int sReg);
+
 
 /*
  * Architecture-dependent register allocation routines implemented in