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Hello，I have a problem about compiling，I succeeded when compiling rvv-test/vadd_vv_i32.c，but when compiling rvv-test/intrinsic/vadd_vv_i8.c, It was failed：error: unknown type name 'vint8m2_t'；did you mean 'vint8m1_t'? And there is one note: 'vint8m1_t' declared here typedef attribute((riscv_vector_type(16))) int8_t vint8m1_t;
So how can I solve this problem？

I followed all the steps listed in this page.
Yet I got compilation errors

in directory LLVM-RV/RVV-TEST
Command:
clang vadd_vv_i32.c -O2 --target=riscv32 -march=rv32imafcv --sysroot=$TOOL_CHAIN_PATH/riscv-unknown-elf --gcc-toolchain=$TOOL_CHAIN_PATH -o vadd_vv_i32.out

In file included from vadd_vv_i32.c:2:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/stdio.h:29:
/home/ubuntu/Spike/riscv32-unknown-elf/include/_ansi.h:10:10: error: 'newlib.h' file not found with include; use "quotes" instead
#include <newlib.h>
^~~~~~~~~~
"newlib.h"
In file included from vadd_vv_i32.c:2:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/stdio.h:29:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/_ansi.h:10:
/home/ubuntu/Spike/riscv32-unknown-elf/include/newlib.h:14:10: error: '_newlib_version.h' file not found with include; use "quotes" instead
#include <_newlib_version.h>
^~~~~~~~~~~~~~~~~~~
"_newlib_version.h"
In file included from vadd_vv_i32.c:2:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/stdio.h:29:
/home/ubuntu/Spike/riscv32-unknown-elf/include/_ansi.h:11:10: error: 'sys/config.h' file not found with include; use "quotes" instead
#include <sys/config.h>
^~~~~~~~~~~~~~
"sys/config.h"
In file included from vadd_vv_i32.c:2:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/stdio.h:29:
In file included from /home/ubuntu/Spike/riscv32-unknown-elf/include/_ansi.h:11:
/home/ubuntu/Spike/riscv32-unknown-elf/include/sys/config.h:4:10: fatal error: 'machine/ieeefp.h' file not found
#include <machine/ieeefp.h> /* floating point macros */
^~~~~~~~~~~~~~~~~~
4 errors generated.

Many other errors in running SPike as well (even if the path for stdio.h which was not in the default path was specified explcitly)-
A simple hello program -

spike pk hello
error: bad --varch option 'vlen:128,elen:32,slen:128'. Unsupported token