[OPENMP] [FLANG] Updates to hostexec to support fortran runtime io. This requires amd-trunk-dev updates be applied

Change-Id: Icc423473c555ddd067ea99492117182f0bb01519

Author: gregrodgers

clang/lib/CodeGen/CodeGenFunction.h

@@ -4634,9 +4634,9 @@ class CodeGenFunction : public CodeGenTypeCache {
                                         ReturnValueSlot ReturnValue);
 
   std::vector<std::string> HostexecFns{
-      "printf",        "fprintf",         "hostexec",
-      "hostexec_uint", "hostexec_uint64", "hostexec_int",
-      "hostexec_long", "hostexec_float",  "hostexec_double"};
+      "printf",          "fprintf",        "hostexec",      "hostexec_uint",
+      "hostexec_uint64", "hostexec_int",   "hostexec_long", "hostexec_float",
+      "hostexec_double", "hostexec_fortrt"};
   RValue EmitHostexecAllocAndExecFns(const CallExpr *E,
                                      const char *allocate_name,
                                      const char *execute_name);

offload/hostexec/CMakeLists.txt

@@ -67,6 +67,13 @@ endif()
    add_compile_options($<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-UNDEBUG>)
    set_property(TARGET amdgcn_hostexec_services PROPERTY POSITION_INDEPENDENT_CODE ON)
 
+   option(LIBOMPTARGET_BUILD_DEVICE_FORTRT "Build device fortran IO runtime to use hostexec" OFF)
+   if (LIBOMPTARGET_BUILD_DEVICE_FORTRT)
+     add_compile_definitions(_HOSTEXEC_BUILD_DEVICE_FORTRT)
+     target_link_libraries(amdgcn_hostexec_services FortranDecimal -L${CMAKE_BINARY_DIR}/../../lib  -L${CMAKE_INSTALL_PREFIX}/lib)
+     target_link_libraries(amdgcn_hostexec_services FortranRuntime -L${CMAKE_BINARY_DIR}/../../lib  -L${CMAKE_INSTALL_PREFIX}/lib)
+   endif()
+
 if (LIBOMPTARGET_DEP_CUDA_FOUND)
    list(APPEND HOSTRPC_ARCHS "nvptx")
    add_library(nvptx_hostexec_services STATIC 
@@ -156,8 +163,8 @@ foreach(archname ${HOSTRPC_ARCHS})
    foreach(mcpu ${mcpus})
       if (${archname} STREQUAL "amdgcn")
         find_package(AMDDeviceLibs REQUIRED CONFIG
-                     HINTS ${CMAKE_INSTALL_PREFIX}
-                           ${CMAKE_BINARY_DIR}/../../tools/rocm-device-libs
+		     HINTS ${CMAKE_BINARY_DIR}/../../tools/rocm-device-libs
+                           ${CMAKE_INSTALL_PREFIX}
                      PATHS /opt/rocm
         )
         get_target_property(ocml_path ocml IMPORTED_LOCATION)