; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv32 -mattr=+d,+zvfh,+zfbfmin,+zvfbfmin,+v \
; RUN:     -target-abi=ilp32d -verify-machineinstrs < %s | FileCheck %s \
; RUN:     --check-prefixes=CHECK,ZVFH
; RUN: llc -mtriple=riscv64 -mattr=+d,+zvfh,+zfbfmin,+zvfbfmin,+v \
; RUN:     -target-abi=lp64d -verify-machineinstrs < %s | FileCheck %s \
; RUN:     --check-prefixes=CHECK,ZVFH
; RUN: llc -mtriple=riscv32 -mattr=+d,+zfhmin,+zvfhmin,+zfbfmin,+zvfbfmin,+v \
; RUN:     -target-abi=ilp32d -verify-machineinstrs < %s | FileCheck %s \
; RUN:     --check-prefixes=CHECK,ZVFHMIN
; RUN: llc -mtriple=riscv64 -mattr=+d,+zfhmin,+zvfhmin,+zfbfmin,+zvfbfmin,+v \
; RUN:     -target-abi=lp64d -verify-machineinstrs < %s | FileCheck %s \
; RUN:     --check-prefixes=CHECK,ZVFHMIN

define <vscale x 1 x bfloat> @vfsub_vv_nxv1bf16(<vscale x 1 x bfloat> %va, <vscale x 1 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv1bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e16, mf4, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v9
; CHECK-NEXT:    vfwcvtbf16.f.f.v v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e32, mf2, ta, ma
; CHECK-NEXT:    vfsub.vv v9, v9, v10
; CHECK-NEXT:    vsetvli zero, zero, e16, mf4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 1 x bfloat> @llvm.experimental.constrained.fsub.nxv1bf16(<vscale x 1 x bfloat> %va, <vscale x 1 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x bfloat> %vc
}

define <vscale x 1 x bfloat> @vfsub_vf_nxv1bf16(<vscale x 1 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv1bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, mf4, ta, ma
; CHECK-NEXT:    vmv.v.x v9, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    vsetvli zero, zero, e32, mf2, ta, ma
; CHECK-NEXT:    vfsub.vv v9, v10, v8
; CHECK-NEXT:    vsetvli zero, zero, e16, mf4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 1 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 1 x bfloat> %head, <vscale x 1 x bfloat> poison, <vscale x 1 x i32> zeroinitializer
  %vc = call <vscale x 1 x bfloat> @llvm.experimental.constrained.fsub.nxv1bf16(<vscale x 1 x bfloat> %va, <vscale x 1 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x bfloat> %vc
}

define <vscale x 2 x bfloat> @vfsub_vv_nxv2bf16(<vscale x 2 x bfloat> %va, <vscale x 2 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv2bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e16, mf2, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v9
; CHECK-NEXT:    vfwcvtbf16.f.f.v v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e32, m1, ta, ma
; CHECK-NEXT:    vfsub.vv v9, v9, v10
; CHECK-NEXT:    vsetvli zero, zero, e16, mf2, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 2 x bfloat> @llvm.experimental.constrained.fsub.nxv2bf16(<vscale x 2 x bfloat> %va, <vscale x 2 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x bfloat> %vc
}

define <vscale x 2 x bfloat> @vfsub_vf_nxv2bf16(<vscale x 2 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv2bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, mf2, ta, ma
; CHECK-NEXT:    vmv.v.x v9, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    vsetvli zero, zero, e32, m1, ta, ma
; CHECK-NEXT:    vfsub.vv v9, v10, v8
; CHECK-NEXT:    vsetvli zero, zero, e16, mf2, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 2 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 2 x bfloat> %head, <vscale x 2 x bfloat> poison, <vscale x 2 x i32> zeroinitializer
  %vc = call <vscale x 2 x bfloat> @llvm.experimental.constrained.fsub.nxv2bf16(<vscale x 2 x bfloat> %va, <vscale x 2 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x bfloat> %vc
}

define <vscale x 4 x bfloat> @vfsub_vv_nxv4bf16(<vscale x 4 x bfloat> %va, <vscale x 4 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv4bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e16, m1, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v9
; CHECK-NEXT:    vfwcvtbf16.f.f.v v12, v8
; CHECK-NEXT:    vsetvli zero, zero, e32, m2, ta, ma
; CHECK-NEXT:    vfsub.vv v10, v12, v10
; CHECK-NEXT:    vsetvli zero, zero, e16, m1, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v10
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 4 x bfloat> @llvm.experimental.constrained.fsub.nxv4bf16(<vscale x 4 x bfloat> %va, <vscale x 4 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x bfloat> %vc
}

define <vscale x 4 x bfloat> @vfsub_vf_nxv4bf16(<vscale x 4 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv4bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, m1, ta, ma
; CHECK-NEXT:    vmv.v.x v9, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v12, v9
; CHECK-NEXT:    vsetvli zero, zero, e32, m2, ta, ma
; CHECK-NEXT:    vfsub.vv v10, v10, v12
; CHECK-NEXT:    vsetvli zero, zero, e16, m1, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v10
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 4 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 4 x bfloat> %head, <vscale x 4 x bfloat> poison, <vscale x 4 x i32> zeroinitializer
  %vc = call <vscale x 4 x bfloat> @llvm.experimental.constrained.fsub.nxv4bf16(<vscale x 4 x bfloat> %va, <vscale x 4 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x bfloat> %vc
}

define <vscale x 8 x bfloat> @vfsub_vv_nxv8bf16(<vscale x 8 x bfloat> %va, <vscale x 8 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv8bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e16, m2, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v12, v10
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v8
; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfsub.vv v12, v16, v12
; CHECK-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v12
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 8 x bfloat> @llvm.experimental.constrained.fsub.nxv8bf16(<vscale x 8 x bfloat> %va, <vscale x 8 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x bfloat> %vc
}

define <vscale x 8 x bfloat> @vfsub_vf_nxv8bf16(<vscale x 8 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv8bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
; CHECK-NEXT:    vmv.v.x v10, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v12, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v10
; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfsub.vv v12, v12, v16
; CHECK-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v12
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 8 x bfloat> %head, <vscale x 8 x bfloat> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x bfloat> @llvm.experimental.constrained.fsub.nxv8bf16(<vscale x 8 x bfloat> %va, <vscale x 8 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x bfloat> %vc
}

define <vscale x 8 x bfloat> @vfsub_fv_nxv8bf16(<vscale x 8 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_fv_nxv8bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
; CHECK-NEXT:    vmv.v.x v10, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v12, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v10
; CHECK-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfsub.vv v12, v16, v12
; CHECK-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v12
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 8 x bfloat> %head, <vscale x 8 x bfloat> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x bfloat> @llvm.experimental.constrained.fsub.nxv8bf16(<vscale x 8 x bfloat> %splat, <vscale x 8 x bfloat> %va, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x bfloat> %vc
}

define <vscale x 16 x bfloat> @vfsub_vv_nxv16bf16(<vscale x 16 x bfloat> %va, <vscale x 16 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv16bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v12
; CHECK-NEXT:    vfwcvtbf16.f.f.v v24, v8
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v16, v24, v16
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v16
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 16 x bfloat> @llvm.experimental.constrained.fsub.nxv16bf16(<vscale x 16 x bfloat> %va, <vscale x 16 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x bfloat> %vc
}

define <vscale x 16 x bfloat> @vfsub_vf_nxv16bf16(<vscale x 16 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv16bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, m4, ta, ma
; CHECK-NEXT:    vmv.v.x v12, a0
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v24, v12
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v16, v16, v24
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v16
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 16 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 16 x bfloat> %head, <vscale x 16 x bfloat> poison, <vscale x 16 x i32> zeroinitializer
  %vc = call <vscale x 16 x bfloat> @llvm.experimental.constrained.fsub.nxv16bf16(<vscale x 16 x bfloat> %va, <vscale x 16 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x bfloat> %vc
}

define <vscale x 32 x bfloat> @vfsub_vv_nxv32bf16(<vscale x 32 x bfloat> %va, <vscale x 32 x bfloat> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv32bf16:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    addi sp, sp, -16
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    csrr a0, vlenb
; CHECK-NEXT:    slli a0, a0, 3
; CHECK-NEXT:    sub sp, sp, a0
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0d, 0x72, 0x00, 0x11, 0x10, 0x22, 0x11, 0x08, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22 # sp + 16 + 8 * vlenb
; CHECK-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v24, v16
; CHECK-NEXT:    addi a0, sp, 16
; CHECK-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
; CHECK-NEXT:    vfwcvtbf16.f.f.v v0, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v24, v20
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v12
; CHECK-NEXT:    vl8r.v v8, (a0) # Unknown-size Folded Reload
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v0, v0, v8
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v0
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v16, v16, v24
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v12, v16
; CHECK-NEXT:    csrr a0, vlenb
; CHECK-NEXT:    slli a0, a0, 3
; CHECK-NEXT:    add sp, sp, a0
; CHECK-NEXT:    .cfi_def_cfa sp, 16
; CHECK-NEXT:    addi sp, sp, 16
; CHECK-NEXT:    .cfi_def_cfa_offset 0
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 32 x bfloat> @llvm.experimental.constrained.fsub.nxv32bf16(<vscale x 32 x bfloat> %va, <vscale x 32 x bfloat> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 32 x bfloat> %vc
}

define <vscale x 32 x bfloat> @vfsub_vf_nxv32bf16(<vscale x 32 x bfloat> %va, bfloat %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv32bf16:
; CHECK:       # %bb.0:
; CHECK-NEXT:    addi sp, sp, -16
; CHECK-NEXT:    .cfi_def_cfa_offset 16
; CHECK-NEXT:    csrr a0, vlenb
; CHECK-NEXT:    slli a0, a0, 3
; CHECK-NEXT:    sub sp, sp, a0
; CHECK-NEXT:    .cfi_escape 0x0f, 0x0d, 0x72, 0x00, 0x11, 0x10, 0x22, 0x11, 0x08, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22 # sp + 16 + 8 * vlenb
; CHECK-NEXT:    fmv.x.h a0, fa0
; CHECK-NEXT:    vsetvli a1, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v8
; CHECK-NEXT:    addi a1, sp, 16
; CHECK-NEXT:    vs8r.v v16, (a1) # Unknown-size Folded Spill
; CHECK-NEXT:    vfwcvtbf16.f.f.v v24, v12
; CHECK-NEXT:    vsetvli a1, zero, e16, m8, ta, ma
; CHECK-NEXT:    vmv.v.x v8, a0
; CHECK-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v0, v8
; CHECK-NEXT:    vfwcvtbf16.f.f.v v16, v12
; CHECK-NEXT:    addi a0, sp, 16
; CHECK-NEXT:    vl8r.v v8, (a0) # Unknown-size Folded Reload
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v0, v8, v0
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v0
; CHECK-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v16, v24, v16
; CHECK-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v12, v16
; CHECK-NEXT:    csrr a0, vlenb
; CHECK-NEXT:    slli a0, a0, 3
; CHECK-NEXT:    add sp, sp, a0
; CHECK-NEXT:    .cfi_def_cfa sp, 16
; CHECK-NEXT:    addi sp, sp, 16
; CHECK-NEXT:    .cfi_def_cfa_offset 0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 32 x bfloat> poison, bfloat %b, i32 0
  %splat = shufflevector <vscale x 32 x bfloat> %head, <vscale x 32 x bfloat> poison, <vscale x 32 x i32> zeroinitializer
  %vc = call <vscale x 32 x bfloat> @llvm.experimental.constrained.fsub.nxv32bf16(<vscale x 32 x bfloat> %va, <vscale x 32 x bfloat> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 32 x bfloat> %vc
}

declare <vscale x 1 x half> @llvm.experimental.constrained.fsub.nxv1f16(<vscale x 1 x half>, <vscale x 1 x half>, metadata, metadata)
define <vscale x 1 x half> @vfsub_vv_nxv1f16(<vscale x 1 x half> %va, <vscale x 1 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv1f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, mf4, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v9
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv1f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, mf4, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v9
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v9, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, mf2, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v9, v9, v10
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, mf4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v9
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 1 x half> @llvm.experimental.constrained.fsub.nxv1f16(<vscale x 1 x half> %va, <vscale x 1 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x half> %vc
}

define <vscale x 1 x half> @vfsub_vf_nxv1f16(<vscale x 1 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv1f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, mf4, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv1f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, mf4, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v9, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v8, v9
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, mf2, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v9, v10, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, mf4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v9
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 1 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 1 x half> %head, <vscale x 1 x half> poison, <vscale x 1 x i32> zeroinitializer
  %vc = call <vscale x 1 x half> @llvm.experimental.constrained.fsub.nxv1f16(<vscale x 1 x half> %va, <vscale x 1 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x half> %vc
}

declare <vscale x 2 x half> @llvm.experimental.constrained.fsub.nxv2f16(<vscale x 2 x half>, <vscale x 2 x half>, metadata, metadata)
define <vscale x 2 x half> @vfsub_vv_nxv2f16(<vscale x 2 x half> %va, <vscale x 2 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv2f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, mf2, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v9
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv2f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, mf2, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v9
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v9, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m1, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v9, v9, v10
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, mf2, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v9
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 2 x half> @llvm.experimental.constrained.fsub.nxv2f16(<vscale x 2 x half> %va, <vscale x 2 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x half> %vc
}

define <vscale x 2 x half> @vfsub_vf_nxv2f16(<vscale x 2 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv2f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, mf2, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv2f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, mf2, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v9, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v8, v9
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m1, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v9, v10, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, mf2, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v9
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 2 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 2 x half> %head, <vscale x 2 x half> poison, <vscale x 2 x i32> zeroinitializer
  %vc = call <vscale x 2 x half> @llvm.experimental.constrained.fsub.nxv2f16(<vscale x 2 x half> %va, <vscale x 2 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x half> %vc
}

declare <vscale x 4 x half> @llvm.experimental.constrained.fsub.nxv4f16(<vscale x 4 x half>, <vscale x 4 x half>, metadata, metadata)
define <vscale x 4 x half> @vfsub_vv_nxv4f16(<vscale x 4 x half> %va, <vscale x 4 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv4f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, m1, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v9
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv4f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, m1, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v9
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v12, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m2, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v10, v12, v10
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m1, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v10
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 4 x half> @llvm.experimental.constrained.fsub.nxv4f16(<vscale x 4 x half> %va, <vscale x 4 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x half> %vc
}

define <vscale x 4 x half> @vfsub_vf_nxv4f16(<vscale x 4 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv4f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, m1, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv4f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m1, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v9, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v10, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v12, v9
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m2, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v10, v10, v12
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m1, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v10
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 4 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 4 x half> %head, <vscale x 4 x half> poison, <vscale x 4 x i32> zeroinitializer
  %vc = call <vscale x 4 x half> @llvm.experimental.constrained.fsub.nxv4f16(<vscale x 4 x half> %va, <vscale x 4 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x half> %vc
}

declare <vscale x 8 x half> @llvm.experimental.constrained.fsub.nxv8f16(<vscale x 8 x half>, <vscale x 8 x half>, metadata, metadata)
define <vscale x 8 x half> @vfsub_vv_nxv8f16(<vscale x 8 x half> %va, <vscale x 8 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv8f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, m2, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v10
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv8f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v12, v10
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v12, v16, v12
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v12
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 8 x half> @llvm.experimental.constrained.fsub.nxv8f16(<vscale x 8 x half> %va, <vscale x 8 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x half> %vc
}

define <vscale x 8 x half> @vfsub_vf_nxv8f16(<vscale x 8 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv8f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, m2, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv8f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v10, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v12, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v10
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v12, v12, v16
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v12
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 8 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 8 x half> %head, <vscale x 8 x half> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x half> @llvm.experimental.constrained.fsub.nxv8f16(<vscale x 8 x half> %va, <vscale x 8 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x half> %vc
}

define <vscale x 8 x half> @vfsub_fv_nxv8f16(<vscale x 8 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_fv_nxv8f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, m2, ta, ma
; ZVFH-NEXT:    vfrsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_fv_nxv8f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v10, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v12, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v10
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m4, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v12, v16, v12
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m2, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v12
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 8 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 8 x half> %head, <vscale x 8 x half> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x half> @llvm.experimental.constrained.fsub.nxv8f16(<vscale x 8 x half> %splat, <vscale x 8 x half> %va, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x half> %vc
}

declare <vscale x 16 x half> @llvm.experimental.constrained.fsub.nxv16f16(<vscale x 16 x half>, <vscale x 16 x half>, metadata, metadata)
define <vscale x 16 x half> @vfsub_vv_nxv16f16(<vscale x 16 x half> %va, <vscale x 16 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv16f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v12
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv16f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v12
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v24, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v16, v24, v16
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v16
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 16 x half> @llvm.experimental.constrained.fsub.nxv16f16(<vscale x 16 x half> %va, <vscale x 16 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x half> %vc
}

define <vscale x 16 x half> @vfsub_vf_nxv16f16(<vscale x 16 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv16f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv16f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v12, a0
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v24, v12
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v16, v16, v24
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v16
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 16 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 16 x half> %head, <vscale x 16 x half> poison, <vscale x 16 x i32> zeroinitializer
  %vc = call <vscale x 16 x half> @llvm.experimental.constrained.fsub.nxv16f16(<vscale x 16 x half> %va, <vscale x 16 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x half> %vc
}

declare <vscale x 32 x half> @llvm.experimental.constrained.fsub.nxv32f16(<vscale x 32 x half>, <vscale x 32 x half>, metadata, metadata)
define <vscale x 32 x half> @vfsub_vv_nxv32f16(<vscale x 32 x half> %va, <vscale x 32 x half> %vb) strictfp {
; ZVFH-LABEL: vfsub_vv_nxv32f16:
; ZVFH:       # %bb.0: # %entry
; ZVFH-NEXT:    vsetvli a0, zero, e16, m8, ta, ma
; ZVFH-NEXT:    vfsub.vv v8, v8, v16
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vv_nxv32f16:
; ZVFHMIN:       # %bb.0: # %entry
; ZVFHMIN-NEXT:    addi sp, sp, -16
; ZVFHMIN-NEXT:    .cfi_def_cfa_offset 16
; ZVFHMIN-NEXT:    csrr a0, vlenb
; ZVFHMIN-NEXT:    slli a0, a0, 3
; ZVFHMIN-NEXT:    sub sp, sp, a0
; ZVFHMIN-NEXT:    .cfi_escape 0x0f, 0x0d, 0x72, 0x00, 0x11, 0x10, 0x22, 0x11, 0x08, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22 # sp + 16 + 8 * vlenb
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v24, v16
; ZVFHMIN-NEXT:    addi a0, sp, 16
; ZVFHMIN-NEXT:    vs8r.v v24, (a0) # Unknown-size Folded Spill
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v0, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v24, v20
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v12
; ZVFHMIN-NEXT:    vl8r.v v8, (a0) # Unknown-size Folded Reload
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v0, v0, v8
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v0
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v16, v16, v24
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v12, v16
; ZVFHMIN-NEXT:    csrr a0, vlenb
; ZVFHMIN-NEXT:    slli a0, a0, 3
; ZVFHMIN-NEXT:    add sp, sp, a0
; ZVFHMIN-NEXT:    .cfi_def_cfa sp, 16
; ZVFHMIN-NEXT:    addi sp, sp, 16
; ZVFHMIN-NEXT:    .cfi_def_cfa_offset 0
; ZVFHMIN-NEXT:    ret
entry:
  %vc = call <vscale x 32 x half> @llvm.experimental.constrained.fsub.nxv32f16(<vscale x 32 x half> %va, <vscale x 32 x half> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 32 x half> %vc
}

define <vscale x 32 x half> @vfsub_vf_nxv32f16(<vscale x 32 x half> %va, half %b) strictfp {
; ZVFH-LABEL: vfsub_vf_nxv32f16:
; ZVFH:       # %bb.0:
; ZVFH-NEXT:    vsetvli a0, zero, e16, m8, ta, ma
; ZVFH-NEXT:    vfsub.vf v8, v8, fa0
; ZVFH-NEXT:    ret
;
; ZVFHMIN-LABEL: vfsub_vf_nxv32f16:
; ZVFHMIN:       # %bb.0:
; ZVFHMIN-NEXT:    addi sp, sp, -16
; ZVFHMIN-NEXT:    .cfi_def_cfa_offset 16
; ZVFHMIN-NEXT:    csrr a0, vlenb
; ZVFHMIN-NEXT:    slli a0, a0, 3
; ZVFHMIN-NEXT:    sub sp, sp, a0
; ZVFHMIN-NEXT:    .cfi_escape 0x0f, 0x0d, 0x72, 0x00, 0x11, 0x10, 0x22, 0x11, 0x08, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22 # sp + 16 + 8 * vlenb
; ZVFHMIN-NEXT:    fmv.x.h a0, fa0
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v8
; ZVFHMIN-NEXT:    addi a1, sp, 16
; ZVFHMIN-NEXT:    vs8r.v v16, (a1) # Unknown-size Folded Spill
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v24, v12
; ZVFHMIN-NEXT:    vsetvli a1, zero, e16, m8, ta, ma
; ZVFHMIN-NEXT:    vmv.v.x v8, a0
; ZVFHMIN-NEXT:    vsetvli a0, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v0, v8
; ZVFHMIN-NEXT:    vfwcvt.f.f.v v16, v12
; ZVFHMIN-NEXT:    addi a0, sp, 16
; ZVFHMIN-NEXT:    vl8r.v v8, (a0) # Unknown-size Folded Reload
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v0, v8, v0
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v8, v0
; ZVFHMIN-NEXT:    vsetvli zero, zero, e32, m8, ta, ma
; ZVFHMIN-NEXT:    vfsub.vv v16, v24, v16
; ZVFHMIN-NEXT:    vsetvli zero, zero, e16, m4, ta, ma
; ZVFHMIN-NEXT:    vfncvt.f.f.w v12, v16
; ZVFHMIN-NEXT:    csrr a0, vlenb
; ZVFHMIN-NEXT:    slli a0, a0, 3
; ZVFHMIN-NEXT:    add sp, sp, a0
; ZVFHMIN-NEXT:    .cfi_def_cfa sp, 16
; ZVFHMIN-NEXT:    addi sp, sp, 16
; ZVFHMIN-NEXT:    .cfi_def_cfa_offset 0
; ZVFHMIN-NEXT:    ret
  %head = insertelement <vscale x 32 x half> poison, half %b, i32 0
  %splat = shufflevector <vscale x 32 x half> %head, <vscale x 32 x half> poison, <vscale x 32 x i32> zeroinitializer
  %vc = call <vscale x 32 x half> @llvm.experimental.constrained.fsub.nxv32f16(<vscale x 32 x half> %va, <vscale x 32 x half> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 32 x half> %vc
}

declare <vscale x 1 x float> @llvm.experimental.constrained.fsub.nxv1f32(<vscale x 1 x float>, <vscale x 1 x float>, metadata, metadata)
define <vscale x 1 x float> @vfsub_vv_nxv1f32(<vscale x 1 x float> %va, <vscale x 1 x float> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv1f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v9
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 1 x float> @llvm.experimental.constrained.fsub.nxv1f32(<vscale x 1 x float> %va, <vscale x 1 x float> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x float> %vc
}

define <vscale x 1 x float> @vfsub_vf_nxv1f32(<vscale x 1 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv1f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, mf2, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 1 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 1 x float> %head, <vscale x 1 x float> poison, <vscale x 1 x i32> zeroinitializer
  %vc = call <vscale x 1 x float> @llvm.experimental.constrained.fsub.nxv1f32(<vscale x 1 x float> %va, <vscale x 1 x float> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x float> %vc
}

declare <vscale x 2 x float> @llvm.experimental.constrained.fsub.nxv2f32(<vscale x 2 x float>, <vscale x 2 x float>, metadata, metadata)
define <vscale x 2 x float> @vfsub_vv_nxv2f32(<vscale x 2 x float> %va, <vscale x 2 x float> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv2f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v9
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 2 x float> @llvm.experimental.constrained.fsub.nxv2f32(<vscale x 2 x float> %va, <vscale x 2 x float> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x float> %vc
}

define <vscale x 2 x float> @vfsub_vf_nxv2f32(<vscale x 2 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv2f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, m1, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 2 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 2 x float> %head, <vscale x 2 x float> poison, <vscale x 2 x i32> zeroinitializer
  %vc = call <vscale x 2 x float> @llvm.experimental.constrained.fsub.nxv2f32(<vscale x 2 x float> %va, <vscale x 2 x float> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x float> %vc
}

declare <vscale x 4 x float> @llvm.experimental.constrained.fsub.nxv4f32(<vscale x 4 x float>, <vscale x 4 x float>, metadata, metadata)
define <vscale x 4 x float> @vfsub_vv_nxv4f32(<vscale x 4 x float> %va, <vscale x 4 x float> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv4f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v10
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 4 x float> @llvm.experimental.constrained.fsub.nxv4f32(<vscale x 4 x float> %va, <vscale x 4 x float> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x float> %vc
}

define <vscale x 4 x float> @vfsub_vf_nxv4f32(<vscale x 4 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv4f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, m2, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 4 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 4 x float> %head, <vscale x 4 x float> poison, <vscale x 4 x i32> zeroinitializer
  %vc = call <vscale x 4 x float> @llvm.experimental.constrained.fsub.nxv4f32(<vscale x 4 x float> %va, <vscale x 4 x float> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x float> %vc
}

declare <vscale x 8 x float> @llvm.experimental.constrained.fsub.nxv8f32(<vscale x 8 x float>, <vscale x 8 x float>, metadata, metadata)
define <vscale x 8 x float> @vfsub_vv_nxv8f32(<vscale x 8 x float> %va, <vscale x 8 x float> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv8f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v12
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 8 x float> @llvm.experimental.constrained.fsub.nxv8f32(<vscale x 8 x float> %va, <vscale x 8 x float> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x float> %vc
}

define <vscale x 8 x float> @vfsub_vf_nxv8f32(<vscale x 8 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv8f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 8 x float> %head, <vscale x 8 x float> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x float> @llvm.experimental.constrained.fsub.nxv8f32(<vscale x 8 x float> %va, <vscale x 8 x float> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x float> %vc
}

define <vscale x 8 x float> @vfsub_fv_nxv8f32(<vscale x 8 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_fv_nxv8f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, m4, ta, ma
; CHECK-NEXT:    vfrsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 8 x float> %head, <vscale x 8 x float> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x float> @llvm.experimental.constrained.fsub.nxv8f32(<vscale x 8 x float> %splat, <vscale x 8 x float> %va, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x float> %vc
}

declare <vscale x 16 x float> @llvm.experimental.constrained.fsub.nxv16f32(<vscale x 16 x float>, <vscale x 16 x float>, metadata, metadata)
define <vscale x 16 x float> @vfsub_vv_nxv16f32(<vscale x 16 x float> %va, <vscale x 16 x float> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv16f32:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v16
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 16 x float> @llvm.experimental.constrained.fsub.nxv16f32(<vscale x 16 x float> %va, <vscale x 16 x float> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x float> %vc
}

define <vscale x 16 x float> @vfsub_vf_nxv16f32(<vscale x 16 x float> %va, float %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv16f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e32, m8, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 16 x float> poison, float %b, i32 0
  %splat = shufflevector <vscale x 16 x float> %head, <vscale x 16 x float> poison, <vscale x 16 x i32> zeroinitializer
  %vc = call <vscale x 16 x float> @llvm.experimental.constrained.fsub.nxv16f32(<vscale x 16 x float> %va, <vscale x 16 x float> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 16 x float> %vc
}

declare <vscale x 1 x double> @llvm.experimental.constrained.fsub.nxv1f64(<vscale x 1 x double>, <vscale x 1 x double>, metadata, metadata)
define <vscale x 1 x double> @vfsub_vv_nxv1f64(<vscale x 1 x double> %va, <vscale x 1 x double> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv1f64:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e64, m1, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v9
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 1 x double> @llvm.experimental.constrained.fsub.nxv1f64(<vscale x 1 x double> %va, <vscale x 1 x double> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x double> %vc
}

define <vscale x 1 x double> @vfsub_vf_nxv1f64(<vscale x 1 x double> %va, double %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv1f64:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e64, m1, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 1 x double> poison, double %b, i32 0
  %splat = shufflevector <vscale x 1 x double> %head, <vscale x 1 x double> poison, <vscale x 1 x i32> zeroinitializer
  %vc = call <vscale x 1 x double> @llvm.experimental.constrained.fsub.nxv1f64(<vscale x 1 x double> %va, <vscale x 1 x double> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 1 x double> %vc
}

declare <vscale x 2 x double> @llvm.experimental.constrained.fsub.nxv2f64(<vscale x 2 x double>, <vscale x 2 x double>, metadata, metadata)
define <vscale x 2 x double> @vfsub_vv_nxv2f64(<vscale x 2 x double> %va, <vscale x 2 x double> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv2f64:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e64, m2, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v10
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 2 x double> @llvm.experimental.constrained.fsub.nxv2f64(<vscale x 2 x double> %va, <vscale x 2 x double> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x double> %vc
}

define <vscale x 2 x double> @vfsub_vf_nxv2f64(<vscale x 2 x double> %va, double %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv2f64:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e64, m2, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 2 x double> poison, double %b, i32 0
  %splat = shufflevector <vscale x 2 x double> %head, <vscale x 2 x double> poison, <vscale x 2 x i32> zeroinitializer
  %vc = call <vscale x 2 x double> @llvm.experimental.constrained.fsub.nxv2f64(<vscale x 2 x double> %va, <vscale x 2 x double> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 2 x double> %vc
}

declare <vscale x 4 x double> @llvm.experimental.constrained.fsub.nxv4f64(<vscale x 4 x double>, <vscale x 4 x double>, metadata, metadata)
define <vscale x 4 x double> @vfsub_vv_nxv4f64(<vscale x 4 x double> %va, <vscale x 4 x double> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv4f64:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e64, m4, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v12
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 4 x double> @llvm.experimental.constrained.fsub.nxv4f64(<vscale x 4 x double> %va, <vscale x 4 x double> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x double> %vc
}

define <vscale x 4 x double> @vfsub_vf_nxv4f64(<vscale x 4 x double> %va, double %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv4f64:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e64, m4, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 4 x double> poison, double %b, i32 0
  %splat = shufflevector <vscale x 4 x double> %head, <vscale x 4 x double> poison, <vscale x 4 x i32> zeroinitializer
  %vc = call <vscale x 4 x double> @llvm.experimental.constrained.fsub.nxv4f64(<vscale x 4 x double> %va, <vscale x 4 x double> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 4 x double> %vc
}

declare <vscale x 8 x double> @llvm.experimental.constrained.fsub.nxv8f64(<vscale x 8 x double>, <vscale x 8 x double>, metadata, metadata)
define <vscale x 8 x double> @vfsub_vv_nxv8f64(<vscale x 8 x double> %va, <vscale x 8 x double> %vb) strictfp {
; CHECK-LABEL: vfsub_vv_nxv8f64:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli a0, zero, e64, m8, ta, ma
; CHECK-NEXT:    vfsub.vv v8, v8, v16
; CHECK-NEXT:    ret
entry:
  %vc = call <vscale x 8 x double> @llvm.experimental.constrained.fsub.nxv8f64(<vscale x 8 x double> %va, <vscale x 8 x double> %vb, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x double> %vc
}

define <vscale x 8 x double> @vfsub_vf_nxv8f64(<vscale x 8 x double> %va, double %b) strictfp {
; CHECK-LABEL: vfsub_vf_nxv8f64:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e64, m8, ta, ma
; CHECK-NEXT:    vfsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x double> poison, double %b, i32 0
  %splat = shufflevector <vscale x 8 x double> %head, <vscale x 8 x double> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x double> @llvm.experimental.constrained.fsub.nxv8f64(<vscale x 8 x double> %va, <vscale x 8 x double> %splat, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x double> %vc
}

define <vscale x 8 x double> @vfsub_fv_nxv8f64(<vscale x 8 x double> %va, double %b) strictfp {
; CHECK-LABEL: vfsub_fv_nxv8f64:
; CHECK:       # %bb.0:
; CHECK-NEXT:    vsetvli a0, zero, e64, m8, ta, ma
; CHECK-NEXT:    vfrsub.vf v8, v8, fa0
; CHECK-NEXT:    ret
  %head = insertelement <vscale x 8 x double> poison, double %b, i32 0
  %splat = shufflevector <vscale x 8 x double> %head, <vscale x 8 x double> poison, <vscale x 8 x i32> zeroinitializer
  %vc = call <vscale x 8 x double> @llvm.experimental.constrained.fsub.nxv8f64(<vscale x 8 x double> %splat, <vscale x 8 x double> %va, metadata !"round.dynamic", metadata !"fpexcept.ignore")
  ret <vscale x 8 x double> %vc
}