[NEON] Wrong return type of NEON intrinsic vqrshrunh_n_s16 in arm_neon.h

[yyctw]

The NEON intrinsics vqrshrunh_n_s16, vqrshruns_n_s32, and vqrshrund_n_s64 have the wrong return type in arm_neon.h in CLANG++-15. According to the ARM documentation https://developer.arm.com/architectures/instruction-sets/intrinsics/vqrshrunh_n_s16, these functions should return uint8, uint16, and uint32, respectively. However, in the header file llvm-15/lib/clang/15.0.7/include/arm_neon.h, the return value of these functions is of int type.

Reproduce problem: https://godbolt.org/z/5ebrG1MW1
CLANG version:

Debian clang version 15.0.7
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

Thank you for your reading.

[llvmbot]

@llvm/issue-subscribers-backend-aarch64

Author: Yi-Yen Chung (yyctw)

The NEON intrinsics `vqrshrunh_n_s16`, `vqrshruns_n_s32`, and `vqrshrund_n_s64` have the wrong return type in `arm_neon.h` in CLANG++-15. According to the ARM documentation https://developer.arm.com/architectures/instruction-sets/intrinsics/vqrshrunh_n_s16, these functions should return `uint8`, `uint16`, and `uint32`, respectively. However, in the header file `llvm-15/lib/clang/15.0.7/include/arm_neon.h`, the return value of these functions is of int type.

Reproduce problem: https://godbolt.org/z/5ebrG1MW1
CLANG version:

Debian clang version 15.0.7
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

Thank you for your reading.

[EugeneZelenko]

Looks like main has same problem: https://godbolt.org/z/WKPrj3acn

[llvmbot]

@llvm/issue-subscribers-backend-arm

Author: Yi-Yen Chung (yyctw)

The NEON intrinsics `vqrshrunh_n_s16`, `vqrshruns_n_s32`, and `vqrshrund_n_s64` have the wrong return type in `arm_neon.h` in CLANG++-15. According to the ARM documentation https://developer.arm.com/architectures/instruction-sets/intrinsics/vqrshrunh_n_s16, these functions should return `uint8`, `uint16`, and `uint32`, respectively. However, in the header file `llvm-15/lib/clang/15.0.7/include/arm_neon.h`, the return value of these functions is of int type.

Reproduce problem: https://godbolt.org/z/5ebrG1MW1
CLANG version:

Debian clang version 15.0.7
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin

Thank you for your reading.