Implement instantiating and unboxing through portable stublinker code… (#106)

* Implement instantiating and unboxing through portable stublinker code
- Handle only the cases with register to register moves
- Shares abi processing logic with delegate shuffle thunk creation
- Architecture specific logic is relatively simple
- Do not permit use of HELPERREG in computed instantiating stubs
- Fix GetArgLoc such that it works on all architectures and OS combinations

Add a JIT stress test case for testing all of the various combinations
- Use the same calling convention test architecture that was used as part of tail call work

Rename secure delegates to wrapper delegates
- Secure delegates are no longer a feature of the runtime
- But the wrapper delegate lives on as a workaround for a weird detail of the ARM32 abi

1 files changed, 3 insertions, 2 deletions

diff --git a/src/vm/amd64/cgencpu.h b/src/vm/amd64/cgencpu.h
index 619fd4ba64..61586c3d75 100644
--- a/src/vm/amd64/cgencpu.h
+++ b/src/vm/amd64/cgencpu.h
@@ -35,7 +35,6 @@ class ComCallMethodDesc;
 //
 // functions implemented in AMD64 assembly
 //
-EXTERN_C void InstantiatingMethodStubWorker(void);
 EXTERN_C void SinglecastDelegateInvokeStub();
 EXTERN_C void FastCallFinalizeWorker(Object *obj, PCODE funcPtr);
 
@@ -274,7 +273,9 @@ typedef DPTR(struct FloatArgumentRegisters) PTR_FloatArgumentRegisters;
 struct FloatArgumentRegisters {
      M128A d[NUM_FLOAT_ARGUMENT_REGISTERS];   // xmm0-xmm7
 };
-
+#else
+// Windows x64 calling convention uses 4 registers for floating point data
+#define NUM_FLOAT_ARGUMENT_REGISTERS 4
 #endif