[llvm-bugs] [Bug 37094] New: aarch64 vpminq_s16 fails to select

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37094

            Bug ID: 37094
           Summary: aarch64 vpminq_s16 fails to select
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: gonzalobg88 at gmail.com
                CC: llvm-bugs at lists.llvm.org

This (https://godbolt.org/g/EibFPf)

declare <8 x i16> @llvm.aarch64.neon.sminp.v8i16(<8 x i16>, <8 x i16>);
define <8 x i16> @vpminq_s16(<8 x i16> %a) {
    %b = call <8 x i16> @llvm.aarch64.neon.sminp.v8i16(<8 x i16> %a, <8 x i16>
%a)
    ret <8 x i16> %b
}

fails to select: 

LLVM ERROR: Cannot select: intrinsic %llvm.aarch64.neon.sminp

---

I am trying to use from LLVM-IR the vpminq_s16 intrinsic which is an AArch64
intrinsic that maps to SMINP Vd.16B,Vn.16B,Vm.16B

See:
https://developer.arm.com/docs/dui0801/latest/a64-simd-vector-instructions/sminp-vector

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