[LegalizeTypes][VP] Add split operand support for VP_FPTOSI/VP_FPTOUI/VP_SITOFP/VP_UITOFP

[Jimerlife]

Summary

Split result support in this D126847, but lack split operand support.

[frasercrmck]

The change LGTM but I'd like to know why only VP INT_TO_FP nodes are handled in this code.

Just FYI I also opened D130967. I thought it better we keep these VP ISD nodes named in line with the non-VP ones.

llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp

2742

That's interesting - how come ISD::SINT_TO_FP and ISD::STRICT_SINT_TO_FP aren't handled here? Are they handled elsewhere or is there a bug somewhere?

[Jimerlife]

llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp

2742

ISD::SINT_TO_FP and ISD::STRICT_SINT_TO_FP are handled in line 2724. Maybe I need to add VP_SITOFP and VP_UITOFP in line 2724.

[Jimerlife]

Move VP_SITOFP and VP_UITOFP to line 2728

[Jimerlife]

rebase to use new ISD name

[frasercrmck]

LGTM

llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp

2742

Ah, nice. I didn't notice that. Yeah I think keeping them together is best. Thanks

llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp

else
       Res = SplitVecOp_UnaryOp(N);
     break;
   case ISD::FP_TO_SINT_SAT:
   case ISD::FP_TO_UINT_SAT:
     Res = SplitVecOp_FP_TO_XINT_SAT(N);
     break;
   case ISD::FP_TO_SINT:
   case ISD::FP_TO_UINT:
+  case ISD::VP_FPTOSI:
+  case ISD::VP_FPTOUI:
+  case ISD::VP_SITOFP:
+  case ISD::VP_UITOFP:
   case ISD::STRICT_FP_TO_SINT:
   case ISD::STRICT_FP_TO_UINT:
   case ISD::STRICT_FP_EXTEND:
   case ISD::FP_EXTEND:
   case ISD::SIGN_EXTEND:
   case ISD::ZERO_EXTEND:
   case ISD::ANY_EXTEND:
   case ISD::FTRUNC:

llvm/test/CodeGen/RISCV/rvv/vfptosi-vp.ll

 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vsetvli zero, a0, e64, m2, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.x.f.v v8, v8
 ; CHECK-NEXT:    ret
   %v = call <vscale x 2 x i64> @llvm.vp.fptosi.nxv2i64.nxv2f64(<vscale x 2 x double> %va, <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> undef, i1 true, i32 0), <vscale x 2 x i1> undef, <vscale x 2 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 2 x i64> %v
 }
 
+declare <vscale x 32 x i16> @llvm.vp.fptosi.nxv32i16.nxv32f32(<vscale x 32 x float>, <vscale x 32 x i1>, i32)
+
+define <vscale x 32 x i16> @vfptosi_nxv32i16_nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
+; CHECK-LABEL: vfptosi_nxv32i16_nxv32f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi sp, sp, -16
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    slli a1, a1, 3
+; CHECK-NEXT:    sub sp, sp, a1
+; CHECK-NEXT:    vmv1r.v v24, v0
+; CHECK-NEXT:    addi a1, sp, 16
+; CHECK-NEXT:    vs8r.v v8, (a1) # Unknown-size Folded Spill
+; CHECK-NEXT:    li a2, 0
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    srli a4, a1, 2
+; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
+; CHECK-NEXT:    slli a1, a1, 1
+; CHECK-NEXT:    sub a3, a0, a1
+; CHECK-NEXT:    vslidedown.vx v0, v0, a4
+; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    mv a2, a3
+; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:    vsetvli zero, a2, e16, m4, ta, mu
+; CHECK-NEXT:    vfncvt.rtz.x.f.w v12, v16, v0.t
+; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:  # %bb.3:
+; CHECK-NEXT:    mv a0, a1
+; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:    vsetvli zero, a0, e16, m4, ta, mu
+; CHECK-NEXT:    vmv1r.v v0, v24
+; CHECK-NEXT:    addi a0, sp, 16
+; CHECK-NEXT:    vl8re8.v v16, (a0) # Unknown-size Folded Reload
+; CHECK-NEXT:    vfncvt.rtz.x.f.w v8, v16, v0.t
+; CHECK-NEXT:    csrr a0, vlenb
+; CHECK-NEXT:    slli a0, a0, 3
+; CHECK-NEXT:    add sp, sp, a0
+; CHECK-NEXT:    addi sp, sp, 16
+; CHECK-NEXT:    ret
+  %v = call <vscale x 32 x i16> @llvm.vp.fptosi.nxv32i16.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 %evl)
+  ret <vscale x 32 x i16> %v
+}
+
 declare <vscale x 32 x i32> @llvm.vp.fptosi.nxv32i32.nxv32f32(<vscale x 32 x float>, <vscale x 32 x i1>, i32)
 
 define <vscale x 32 x i32> @vfptosi_nxv32i32_nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
 ; CHECK-LABEL: vfptosi_nxv32i32_nxv32f32:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vmv1r.v v24, v0
 ; CHECK-NEXT:    li a2, 0
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    srli a4, a1, 2
 ; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    sub a3, a0, a1
 ; CHECK-NEXT:    vslidedown.vx v0, v0, a4
-; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:    bltu a0, a3, .LBB26_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a3
-; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:  .LBB26_2:
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.x.f.v v16, v16, v0.t
-; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:    bltu a0, a1, .LBB26_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a0, a1
-; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:  .LBB26_4:
 ; CHECK-NEXT:    vsetvli zero, a0, e32, m8, ta, mu
 ; CHECK-NEXT:    vmv1r.v v0, v24
 ; CHECK-NEXT:    vfcvt.rtz.x.f.v v8, v8, v0.t
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x i32> @llvm.vp.fptosi.nxv32i32.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 %evl)
   ret <vscale x 32 x i32> %v
 }
 
 define <vscale x 32 x i32> @vfptosi_nxv32i32_nxv32f32_unmasked(<vscale x 32 x float> %va, i32 zeroext %evl) {
 ; CHECK-LABEL: vfptosi_nxv32i32_nxv32f32_unmasked:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    mv a2, a0
-; CHECK-NEXT:    bltu a0, a1, .LBB26_2
+; CHECK-NEXT:    bltu a0, a1, .LBB27_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a1
-; CHECK-NEXT:  .LBB26_2:
+; CHECK-NEXT:  .LBB27_2:
 ; CHECK-NEXT:    li a3, 0
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    sub a1, a0, a1
 ; CHECK-NEXT:    vfcvt.rtz.x.f.v v8, v8
-; CHECK-NEXT:    bltu a0, a1, .LBB26_4
+; CHECK-NEXT:    bltu a0, a1, .LBB27_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a3, a1
-; CHECK-NEXT:  .LBB26_4:
+; CHECK-NEXT:  .LBB27_4:
 ; CHECK-NEXT:    vsetvli zero, a3, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.x.f.v v16, v16
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x i32> @llvm.vp.fptosi.nxv32i32.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> shufflevector (<vscale x 32 x i1> insertelement (<vscale x 32 x i1> undef, i1 true, i32 0), <vscale x 32 x i1> undef, <vscale x 32 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 32 x i32> %v
 }

llvm/test/CodeGen/RISCV/rvv/vfptoui-vp.ll

 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vsetvli zero, a0, e64, m2, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.xu.f.v v8, v8
 ; CHECK-NEXT:    ret
   %v = call <vscale x 2 x i64> @llvm.vp.fptoui.nxv2i64.nxv2f64(<vscale x 2 x double> %va, <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> undef, i1 true, i32 0), <vscale x 2 x i1> undef, <vscale x 2 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 2 x i64> %v
 }
 
+declare <vscale x 32 x i16> @llvm.vp.fptoui.nxv32i16.nxv32f32(<vscale x 32 x float>, <vscale x 32 x i1>, i32)
+
+define <vscale x 32 x i16> @vfptoui_nxv32i16_nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
+; CHECK-LABEL: vfptoui_nxv32i16_nxv32f32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi sp, sp, -16
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    slli a1, a1, 3
+; CHECK-NEXT:    sub sp, sp, a1
+; CHECK-NEXT:    vmv1r.v v24, v0
+; CHECK-NEXT:    addi a1, sp, 16
+; CHECK-NEXT:    vs8r.v v8, (a1) # Unknown-size Folded Spill
+; CHECK-NEXT:    li a2, 0
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    srli a4, a1, 2
+; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
+; CHECK-NEXT:    slli a1, a1, 1
+; CHECK-NEXT:    sub a3, a0, a1
+; CHECK-NEXT:    vslidedown.vx v0, v0, a4
+; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    mv a2, a3
+; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:    vsetvli zero, a2, e16, m4, ta, mu
+; CHECK-NEXT:    vfncvt.rtz.xu.f.w v12, v16, v0.t
+; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:  # %bb.3:
+; CHECK-NEXT:    mv a0, a1
+; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:    vsetvli zero, a0, e16, m4, ta, mu
+; CHECK-NEXT:    vmv1r.v v0, v24
+; CHECK-NEXT:    addi a0, sp, 16
+; CHECK-NEXT:    vl8re8.v v16, (a0) # Unknown-size Folded Reload
+; CHECK-NEXT:    vfncvt.rtz.xu.f.w v8, v16, v0.t
+; CHECK-NEXT:    csrr a0, vlenb
+; CHECK-NEXT:    slli a0, a0, 3
+; CHECK-NEXT:    add sp, sp, a0
+; CHECK-NEXT:    addi sp, sp, 16
+; CHECK-NEXT:    ret
+  %v = call <vscale x 32 x i16> @llvm.vp.fptoui.nxv32i16.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 %evl)
+  ret <vscale x 32 x i16> %v
+}
+
 declare <vscale x 32 x i32> @llvm.vp.fptoui.nxv32i32.nxv32f32(<vscale x 32 x float>, <vscale x 32 x i1>, i32)
 
 define <vscale x 32 x i32> @vfptoui_nxv32i32_nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
 ; CHECK-LABEL: vfptoui_nxv32i32_nxv32f32:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vmv1r.v v24, v0
 ; CHECK-NEXT:    li a2, 0
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    srli a4, a1, 2
 ; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    sub a3, a0, a1
 ; CHECK-NEXT:    vslidedown.vx v0, v0, a4
-; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:    bltu a0, a3, .LBB26_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a3
-; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:  .LBB26_2:
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.xu.f.v v16, v16, v0.t
-; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:    bltu a0, a1, .LBB26_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a0, a1
-; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:  .LBB26_4:
 ; CHECK-NEXT:    vsetvli zero, a0, e32, m8, ta, mu
 ; CHECK-NEXT:    vmv1r.v v0, v24
 ; CHECK-NEXT:    vfcvt.rtz.xu.f.v v8, v8, v0.t
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x i32> @llvm.vp.fptoui.nxv32i32.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> %m, i32 %evl)
   ret <vscale x 32 x i32> %v
 }
 
 define <vscale x 32 x i32> @vfptoui_nxv32i32_nxv32f32_unmasked(<vscale x 32 x float> %va, i32 zeroext %evl) {
 ; CHECK-LABEL: vfptoui_nxv32i32_nxv32f32_unmasked:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    mv a2, a0
-; CHECK-NEXT:    bltu a0, a1, .LBB26_2
+; CHECK-NEXT:    bltu a0, a1, .LBB27_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a1
-; CHECK-NEXT:  .LBB26_2:
+; CHECK-NEXT:  .LBB27_2:
 ; CHECK-NEXT:    li a3, 0
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    sub a1, a0, a1
 ; CHECK-NEXT:    vfcvt.rtz.xu.f.v v8, v8
-; CHECK-NEXT:    bltu a0, a1, .LBB26_4
+; CHECK-NEXT:    bltu a0, a1, .LBB27_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a3, a1
-; CHECK-NEXT:  .LBB26_4:
+; CHECK-NEXT:  .LBB27_4:
 ; CHECK-NEXT:    vsetvli zero, a3, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.rtz.xu.f.v v16, v16
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x i32> @llvm.vp.fptoui.nxv32i32.nxv32f32(<vscale x 32 x float> %va, <vscale x 32 x i1> shufflevector (<vscale x 32 x i1> insertelement (<vscale x 32 x i1> undef, i1 true, i32 0), <vscale x 32 x i1> undef, <vscale x 32 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 32 x i32> %v
 }

llvm/test/CodeGen/RISCV/rvv/vsitofp-vp.ll

 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vsetvli zero, a0, e64, m2, ta, mu
 ; CHECK-NEXT:    vfcvt.f.x.v v8, v8
 ; CHECK-NEXT:    ret
   %v = call <vscale x 2 x double> @llvm.vp.sitofp.nxv2f64.nxv2i64(<vscale x 2 x i64> %va, <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> undef, i1 true, i32 0), <vscale x 2 x i1> undef, <vscale x 2 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 2 x double> %v
 }
 
+declare <vscale x 32 x half> @llvm.vp.sitofp.nxv32f16.nxv32i32(<vscale x 32 x i32>, <vscale x 32 x i1>, i32)
+
+define <vscale x 32 x half> @vsitofp_nxv32f16_nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
+; CHECK-LABEL: vsitofp_nxv32f16_nxv32i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi sp, sp, -16
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    slli a1, a1, 3
+; CHECK-NEXT:    sub sp, sp, a1
+; CHECK-NEXT:    vmv1r.v v24, v0
+; CHECK-NEXT:    addi a1, sp, 16
+; CHECK-NEXT:    vs8r.v v8, (a1) # Unknown-size Folded Spill
+; CHECK-NEXT:    li a2, 0
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    srli a4, a1, 2
+; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
+; CHECK-NEXT:    slli a1, a1, 1
+; CHECK-NEXT:    sub a3, a0, a1
+; CHECK-NEXT:    vslidedown.vx v0, v0, a4
+; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    mv a2, a3
+; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:    vsetvli zero, a2, e16, m4, ta, mu
+; CHECK-NEXT:    vfncvt.f.x.w v12, v16, v0.t
+; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:  # %bb.3:
+; CHECK-NEXT:    mv a0, a1
+; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:    vsetvli zero, a0, e16, m4, ta, mu
+; CHECK-NEXT:    vmv1r.v v0, v24
+; CHECK-NEXT:    addi a0, sp, 16
+; CHECK-NEXT:    vl8re8.v v16, (a0) # Unknown-size Folded Reload
+; CHECK-NEXT:    vfncvt.f.x.w v8, v16, v0.t
+; CHECK-NEXT:    csrr a0, vlenb
+; CHECK-NEXT:    slli a0, a0, 3
+; CHECK-NEXT:    add sp, sp, a0
+; CHECK-NEXT:    addi sp, sp, 16
+; CHECK-NEXT:    ret
+  %v = call <vscale x 32 x half> @llvm.vp.sitofp.nxv32f16.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 %evl)
+  ret <vscale x 32 x half> %v
+}
+
 declare <vscale x 32 x float> @llvm.vp.sitofp.nxv32f32.nxv32i32(<vscale x 32 x i32>, <vscale x 32 x i1>, i32)
 
 define <vscale x 32 x float> @vsitofp_nxv32f32_nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
 ; CHECK-LABEL: vsitofp_nxv32f32_nxv32i32:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vmv1r.v v24, v0
 ; CHECK-NEXT:    li a2, 0
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    srli a4, a1, 2
 ; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    sub a3, a0, a1
 ; CHECK-NEXT:    vslidedown.vx v0, v0, a4
-; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:    bltu a0, a3, .LBB26_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a3
-; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:  .LBB26_2:
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.f.x.v v16, v16, v0.t
-; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:    bltu a0, a1, .LBB26_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a0, a1
-; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:  .LBB26_4:
 ; CHECK-NEXT:    vsetvli zero, a0, e32, m8, ta, mu
 ; CHECK-NEXT:    vmv1r.v v0, v24
 ; CHECK-NEXT:    vfcvt.f.x.v v8, v8, v0.t
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x float> @llvm.vp.sitofp.nxv32f32.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 %evl)
   ret <vscale x 32 x float> %v
 }
 
 define <vscale x 32 x float> @vsitofp_nxv32f32_nxv32i32_unmasked(<vscale x 32 x i32> %va, i32 zeroext %evl) {
 ; CHECK-LABEL: vsitofp_nxv32f32_nxv32i32_unmasked:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    mv a2, a0
-; CHECK-NEXT:    bltu a0, a1, .LBB26_2
+; CHECK-NEXT:    bltu a0, a1, .LBB27_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a1
-; CHECK-NEXT:  .LBB26_2:
+; CHECK-NEXT:  .LBB27_2:
 ; CHECK-NEXT:    li a3, 0
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    sub a1, a0, a1
 ; CHECK-NEXT:    vfcvt.f.x.v v8, v8
-; CHECK-NEXT:    bltu a0, a1, .LBB26_4
+; CHECK-NEXT:    bltu a0, a1, .LBB27_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a3, a1
-; CHECK-NEXT:  .LBB26_4:
+; CHECK-NEXT:  .LBB27_4:
 ; CHECK-NEXT:    vsetvli zero, a3, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.f.x.v v16, v16
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x float> @llvm.vp.sitofp.nxv32f32.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> shufflevector (<vscale x 32 x i1> insertelement (<vscale x 32 x i1> undef, i1 true, i32 0), <vscale x 32 x i1> undef, <vscale x 32 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 32 x float> %v
 }

llvm/test/CodeGen/RISCV/rvv/vuitofp-vp.ll

 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vsetvli zero, a0, e64, m2, ta, mu
 ; CHECK-NEXT:    vfcvt.f.xu.v v8, v8
 ; CHECK-NEXT:    ret
   %v = call <vscale x 2 x double> @llvm.vp.uitofp.nxv2f64.nxv2i64(<vscale x 2 x i64> %va, <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> undef, i1 true, i32 0), <vscale x 2 x i1> undef, <vscale x 2 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 2 x double> %v
 }
 
+declare <vscale x 32 x half> @llvm.vp.uitofp.nxv32f16.nxv32i32(<vscale x 32 x i32>, <vscale x 32 x i1>, i32)
+
+define <vscale x 32 x half> @vuitofp_nxv32f16_nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
+; CHECK-LABEL: vuitofp_nxv32f16_nxv32i32:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    addi sp, sp, -16
+; CHECK-NEXT:    .cfi_def_cfa_offset 16
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    slli a1, a1, 3
+; CHECK-NEXT:    sub sp, sp, a1
+; CHECK-NEXT:    vmv1r.v v24, v0
+; CHECK-NEXT:    addi a1, sp, 16
+; CHECK-NEXT:    vs8r.v v8, (a1) # Unknown-size Folded Spill
+; CHECK-NEXT:    li a2, 0
+; CHECK-NEXT:    csrr a1, vlenb
+; CHECK-NEXT:    srli a4, a1, 2
+; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
+; CHECK-NEXT:    slli a1, a1, 1
+; CHECK-NEXT:    sub a3, a0, a1
+; CHECK-NEXT:    vslidedown.vx v0, v0, a4
+; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:  # %bb.1:
+; CHECK-NEXT:    mv a2, a3
+; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:    vsetvli zero, a2, e16, m4, ta, mu
+; CHECK-NEXT:    vfncvt.f.xu.w v12, v16, v0.t
+; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:  # %bb.3:
+; CHECK-NEXT:    mv a0, a1
+; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:    vsetvli zero, a0, e16, m4, ta, mu
+; CHECK-NEXT:    vmv1r.v v0, v24
+; CHECK-NEXT:    addi a0, sp, 16
+; CHECK-NEXT:    vl8re8.v v16, (a0) # Unknown-size Folded Reload
+; CHECK-NEXT:    vfncvt.f.xu.w v8, v16, v0.t
+; CHECK-NEXT:    csrr a0, vlenb
+; CHECK-NEXT:    slli a0, a0, 3
+; CHECK-NEXT:    add sp, sp, a0
+; CHECK-NEXT:    addi sp, sp, 16
+; CHECK-NEXT:    ret
+  %v = call <vscale x 32 x half> @llvm.vp.uitofp.nxv32f16.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 %evl)
+  ret <vscale x 32 x half> %v
+}
+
 declare <vscale x 32 x float> @llvm.vp.uitofp.nxv32f32.nxv32i32(<vscale x 32 x i32>, <vscale x 32 x i1>, i32)
 
 define <vscale x 32 x float> @vuitofp_nxv32f32_nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 zeroext %evl) {
 ; CHECK-LABEL: vuitofp_nxv32f32_nxv32i32:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    vmv1r.v v24, v0
 ; CHECK-NEXT:    li a2, 0
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    srli a4, a1, 2
 ; CHECK-NEXT:    vsetvli a3, zero, e8, mf2, ta, mu
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    sub a3, a0, a1
 ; CHECK-NEXT:    vslidedown.vx v0, v0, a4
-; CHECK-NEXT:    bltu a0, a3, .LBB25_2
+; CHECK-NEXT:    bltu a0, a3, .LBB26_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a3
-; CHECK-NEXT:  .LBB25_2:
+; CHECK-NEXT:  .LBB26_2:
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.f.xu.v v16, v16, v0.t
-; CHECK-NEXT:    bltu a0, a1, .LBB25_4
+; CHECK-NEXT:    bltu a0, a1, .LBB26_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a0, a1
-; CHECK-NEXT:  .LBB25_4:
+; CHECK-NEXT:  .LBB26_4:
 ; CHECK-NEXT:    vsetvli zero, a0, e32, m8, ta, mu
 ; CHECK-NEXT:    vmv1r.v v0, v24
 ; CHECK-NEXT:    vfcvt.f.xu.v v8, v8, v0.t
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x float> @llvm.vp.uitofp.nxv32f32.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> %m, i32 %evl)
   ret <vscale x 32 x float> %v
 }
 
 define <vscale x 32 x float> @vuitofp_nxv32f32_nxv32i32_unmasked(<vscale x 32 x i32> %va, i32 zeroext %evl) {
 ; CHECK-LABEL: vuitofp_nxv32f32_nxv32i32_unmasked:
 ; CHECK:       # %bb.0:
 ; CHECK-NEXT:    csrr a1, vlenb
 ; CHECK-NEXT:    slli a1, a1, 1
 ; CHECK-NEXT:    mv a2, a0
-; CHECK-NEXT:    bltu a0, a1, .LBB26_2
+; CHECK-NEXT:    bltu a0, a1, .LBB27_2
 ; CHECK-NEXT:  # %bb.1:
 ; CHECK-NEXT:    mv a2, a1
-; CHECK-NEXT:  .LBB26_2:
+; CHECK-NEXT:  .LBB27_2:
 ; CHECK-NEXT:    li a3, 0
 ; CHECK-NEXT:    vsetvli zero, a2, e32, m8, ta, mu
 ; CHECK-NEXT:    sub a1, a0, a1
 ; CHECK-NEXT:    vfcvt.f.xu.v v8, v8
-; CHECK-NEXT:    bltu a0, a1, .LBB26_4
+; CHECK-NEXT:    bltu a0, a1, .LBB27_4
 ; CHECK-NEXT:  # %bb.3:
 ; CHECK-NEXT:    mv a3, a1
-; CHECK-NEXT:  .LBB26_4:
+; CHECK-NEXT:  .LBB27_4:
 ; CHECK-NEXT:    vsetvli zero, a3, e32, m8, ta, mu
 ; CHECK-NEXT:    vfcvt.f.xu.v v16, v16
 ; CHECK-NEXT:    ret
   %v = call <vscale x 32 x float> @llvm.vp.uitofp.nxv32f32.nxv32i32(<vscale x 32 x i32> %va, <vscale x 32 x i1> shufflevector (<vscale x 32 x i1> insertelement (<vscale x 32 x i1> undef, i1 true, i32 0), <vscale x 32 x i1> undef, <vscale x 32 x i32> zeroinitializer), i32 %evl)
   ret <vscale x 32 x float> %v
 }