llvm/test/CodeGen/RISCV/rvv/zvfofp8min-alt-interlave.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: sed 's/iXLen/i32/g' %s | llc -mtriple=riscv32 -mattr=+v,+zvfbfmin,+experimental-zvfofp8min \
; RUN:   -verify-machineinstrs -target-abi=ilp32d | FileCheck %s
; RUN: sed 's/iXLen/i64/g' %s | llc -mtriple=riscv64 -mattr=+v,+zvfbfmin,+experimental-zvfofp8min \
; RUN:   -verify-machineinstrs -target-abi=lp64d | FileCheck %s

; a -> need alt
; n -> don't need alt
; d -> don't care alt

define <vscale x 1 x bfloat> @test_a_n_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_a_n_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  ret <vscale x 1 x bfloat> %b
}

define <vscale x 1 x i8> @test_a_n_a_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_a_n_a_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v9
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v10
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  %c = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %b,
    iXLen 7, iXLen %1)

  ret <vscale x 1 x i8> %c
}

define <vscale x 1 x i8> @test_a_n_d_interleave(<vscale x 1 x i8> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_a_n_d_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    vadd.vv v8, v8, v8
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.alt.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %0,
    iXLen %1)

  %b = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %a,
    iXLen 7, iXLen %1)


  %c = call <vscale x 1 x i8> @llvm.riscv.vadd.nxv1i8(
    <vscale x 1 x i8> poison,
    <vscale x 1 x i8> %b,
    <vscale x 1 x i8> %b,
    iXLen %1)

  ret <vscale x 1 x i8> %c
}

define <vscale x 1 x i8> @test_a_n_a_d_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_a_n_a_d_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vadd.vv v8, v9, v9
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  %c = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %b,
    iXLen 7, iXLen %1)

  %d = call <vscale x 1 x i8> @llvm.riscv.vadd.nxv1i8(
    <vscale x 1 x i8> poison,
    <vscale x 1 x i8> %c,
    <vscale x 1 x i8> %c,
    iXLen %1)

  ret <vscale x 1 x i8> %d
}

define <vscale x 1 x bfloat> @test_n_a_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_n_a_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.alt.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  ret <vscale x 1 x bfloat> %b
}

define <vscale x 1 x i8> @test_n_a_n_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_n_a_n_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v10, v9
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v10
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.alt.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  %c = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %b,
    iXLen 7, iXLen %1)

  ret <vscale x 1 x i8> %c
}

define <vscale x 1 x i8> @test_n_a_d_interleave(<vscale x 1 x i8> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_n_a_d_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v8, v9
; CHECK-NEXT:    vadd.vv v8, v8, v8
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %0,
    iXLen %1)

  %b = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.alt.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %a,
    iXLen 7, iXLen %1)


  %c = call <vscale x 1 x i8> @llvm.riscv.vadd.nxv1i8(
    <vscale x 1 x i8> poison,
    <vscale x 1 x i8> %b,
    <vscale x 1 x i8> %b,
    iXLen %1)

  ret <vscale x 1 x i8> %c
}

define <vscale x 1 x i8> @test_n_a_n_d_interleave(<vscale x 1 x bfloat> %0, iXLen %1) nounwind {
; CHECK-LABEL: test_n_a_n_d_interleave:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:    vsetvli zero, a0, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vsetvli zero, zero, e8alt, mf8, ta, ma
; CHECK-NEXT:    vfwcvtbf16.f.f.v v8, v9
; CHECK-NEXT:    vsetvli zero, zero, e8, mf8, ta, ma
; CHECK-NEXT:    vfncvtbf16.f.f.w v9, v8
; CHECK-NEXT:    vadd.vv v8, v9, v9
; CHECK-NEXT:    ret
entry:
  %a = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %0,
    iXLen 7, iXLen %1)

  %b = call <vscale x 1 x bfloat> @llvm.riscv.vfwcvt.f.f.v.alt.nxv1bf16.nxv1i8(
    <vscale x 1 x bfloat> poison,
    <vscale x 1 x i8> %a,
    iXLen %1)

  %c = call <vscale x 1 x i8> @llvm.riscv.vfncvt.f.f.w.nxv1i8.nxv1bf16(
    <vscale x 1 x i8> poison,
    <vscale x 1 x bfloat> %b,
    iXLen 7, iXLen %1)

  %d = call <vscale x 1 x i8> @llvm.riscv.vadd.nxv1i8(
    <vscale x 1 x i8> poison,
    <vscale x 1 x i8> %c,
    <vscale x 1 x i8> %c,
    iXLen %1)

  ret <vscale x 1 x i8> %d
}