From: ZhangYin <zhangyin2018@iscas.ac.cn>
Date: Tue, 29 Sep 2020 06:15:11 +0000 (+0800)
Subject: modified rvv option for clang to match LLVM upstream
X-Git-Tag: accepted/tizen/unified/20220125.121719~1^2~320^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b91e701f353f9891e19a3ecc8620584bc1b41139;p=platform%2Fupstream%2Fopencv.git

modified rvv option for clang to match LLVM upstream
---

diff --git a/platforms/linux/riscv64-clang.toolchain.cmake b/platforms/linux/riscv64-clang.toolchain.cmake
index 58e06dd..c1c74ab 100644
--- a/platforms/linux/riscv64-clang.toolchain.cmake
+++ b/platforms/linux/riscv64-clang.toolchain.cmake
@@ -17,8 +17,8 @@ set(CMAKE_ASM_COMPILER_TARGET ${CLANG_TARGET_TRIPLE})
 # Don't run the linker on compiler check
 set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
 
-set(CMAKE_C_FLAGS "-march=rv64gcv --gcc-toolchain=${RISCV_GCC_INSTALL_ROOT} -w ${CMAKE_C_FLAGS}")
-set(CMAKE_CXX_FLAGS "-march=rv64gcv --gcc-toolchain=${RISCV_GCC_INSTALL_ROOT} -w ${CXX_FLAGS}")
+set(CMAKE_C_FLAGS "-march=rv64gcv0p9 -menable-experimental-extensions --gcc-toolchain=${RISCV_GCC_INSTALL_ROOT} -w ${CMAKE_C_FLAGS}")
+set(CMAKE_CXX_FLAGS "-march=rv64gcv0p9 -menable-experimental-extensions --gcc-toolchain=${RISCV_GCC_INSTALL_ROOT} -w ${CXX_FLAGS}")
 
 set(CMAKE_FIND_ROOT_PATH ${CMAKE_SYSROOT})
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)