SWDEV-520384 - Improve Fat Binary loading latency (#390)

Init and fini kernel needs to be launched when we load and unload code object. Avoid looping through all kernels within a code object just to run the init and fini kernels. Compiler currently only generates 1 init and fini kernel.

rocclr/device/devprogram.hpp

@@ -115,8 +115,10 @@ class Program : public amd::HeapObject {
   kernels_t kernels_; //!< The kernel entry points this binary.
   type_t type_;       //!< type of this program
 
-  typedef enum { InitKernel = 0, FiniKernel } kernel_kind_t;  //!< Kernel kind
-  bool runInitFiniKernel(kernel_kind_t) const;
+  std::vector<const Kernel*> initKernels_;  //!< Init kernels
+  std::vector<const Kernel*> finiKernels_;  //!< Fini kernels
+
+  bool runInitFiniKernel(const std::vector<const Kernel*>& kernels) const;
 
 #if defined(WITH_COMPILER_LIB)
   static amd::Monitor buildLock_; //!< Global build lock for HSAIL which isn't thread-safe
@@ -224,6 +226,9 @@ class Program : public amd::HeapObject {
   const kernels_t& kernels() const { return kernels_; }
   kernels_t& kernels() { return kernels_; }
 
+  //! Add kernel to the map and init fini kernel vector.
+  void addKernel(Kernel* k);
+
   //! Return the binary image.
   inline const binary_t binary() const;
   inline binary_t binary();