arm/arm64 cleanup

Author: sigatrev

lib/Backend/Encoder.cpp

@@ -333,10 +333,7 @@ Encoder::Encode()
     pdataCount = 1;
     xdataSize = XDATA_SIZE;
 #elif defined(_M_ARM)
-#pragma warning(push)
-#pragma warning(disable:4244) // warning C4244: 'argument': conversion from 'ptrdiff_t' to 'DWORD', possible loss of data
     pdataCount = (ushort)m_func->m_unwindInfo.GetPDataCount(codeSize);
-#pragma warning(pop)
     xdataSize = (UnwindInfoManager::MaxXdataBytes + 3) * pdataCount;
 #else
     xdataSize = 0;

lib/Backend/Lower.cpp

@@ -4703,6 +4703,8 @@ Lowerer::GenerateCallProfiling(Js::ProfileId profileId, Js::InlineCacheIndex inl
     Assert(callInstr->m_opcode == Js::OpCode::CALL);
 #elif defined(_M_ARM)
     Assert(callInstr->m_opcode == Js::OpCode::BLX);
+#elif defined(_M_ARM64)
+    Assert(callInstr->m_opcode == Js::OpCode::BLR);
 #endif
     Func*const func = insertAfter->m_func;