[gcc r13-4897] RISC-V: Add riscv_vector.h wrapper

[gcc r13-4897] RISC-V: Add riscv_vector.h wrapper

[Kito Cheng]

https://gcc.gnu.org/g:3d365acf982e50588f944c46a46ec2fff59f5798

commit r13-4897-g3d365acf982e50588f944c46a46ec2fff59f5798
Author: Kito Cheng <kito.cheng@sifive.com>
Date:   Tue Dec 27 23:06:17 2022 +0800

    RISC-V: Add riscv_vector.h wrapper
    
    Like d0bbecb1c418b680505faa998fe420f0fd4bbfc1, we add a wrapper to
    prevent it pull stdint.h from standard C library.
    
    gcc/testsuite:
    
            * gcc.target/riscv/rvv/vsetvl/riscv_vector.h: New.

Diff:
---
 gcc/testsuite/gcc.target/riscv/rvv/vsetvl/riscv_vector.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/riscv_vector.h b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/riscv_vector.h
new file mode 100644
index 00000000000..fbb4858fc86
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/vsetvl/riscv_vector.h
@@ -0,0 +1,11 @@
+/* Wrapper of riscv_vector.h, prevent riscv_vector.h including stdint.h from
+   C library, that might cause problem on testing RV32 related testcase when
+   we disable multilib.  */
+#ifndef _RISCV_VECTOR_WRAP_H
+
+#define _GCC_WRAP_STDINT_H
+#include "stdint-gcc.h"
+#include_next <riscv_vector.h>
+#define _RISCV_VECTOR_WRAP_H
+
+#endif