riscv64: runtime improvements

Signed-off-by: Zhang fei <[email protected]>

Author: zhangfeiv0

cmake/platform.cmake

@@ -285,6 +285,9 @@ elseif(UNIX OR MINGW)
              if (CMAKE_SYSTEM_PROCESSOR STREQUAL CMAKE_HOST_SYSTEM_PROCESSOR)
                  append(DEF_ARCH_OPT_FLAGS "-march=native")
              endif()
+        elseif(DNNL_TARGET_ARCH STREQUAL "RV64")
+             # G = General-purpose extensions, C = Compression extension (very common).
+             append(DEF_ARCH_OPT_FLAGS "-march=rv64gc")
         elseif(DNNL_TARGET_ARCH STREQUAL "X64")
              platform_clang_x64_arch_ccxx_flags(DEF_ARCH_OPT_FLAGS)
         endif()

src/cpu/rv64/CMakeLists.txt

@@ -32,10 +32,6 @@ if(NOT DNNL_RISCV_USE_RVV_INTRINSICS)
     endif()
 endif()
 
-if(NOT (DNNL_CPU_RUNTIME STREQUAL "SEQ" OR DNNL_CPU_RUNTIME STREQUAL "OMP"))
-    message(FATAL_ERROR "Only sequential runtime is now supported for a RISC-V CPU")
-endif()
-
 # Build sources into an object library
 set(OBJ_LIB ${DNNL_LIBRARY_NAME}_cpu_riscv)
 add_library(${OBJ_LIB} OBJECT ${SOURCES})