llvm/test/CodeGen/X86/knownbits-vpmadd52.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5

; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512ifma,+avx512vl | FileCheck %s --check-prefixes=AVX512VL
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avxifma                  | FileCheck %s --check-prefixes=AVXIFMA

; High-52 path

declare <2 x i64> @llvm.x86.avx512.vpmadd52h.uq.128(<2 x i64>, <2 x i64>, <2 x i64>)
declare <4 x i64> @llvm.x86.avx512.vpmadd52h.uq.256(<4 x i64>, <4 x i64>, <4 x i64>)

; High-52, 25x25 masked inputs, accumulator = 1, expected constant fold.
define <2 x i64> @kb52h_128_mask25_and1(<2 x i64> %x, <2 x i64> %y) {
; AVX512VL-LABEL: kb52h_128_mask25_and1:
; AVX512VL:       # %bb.0:
; AVX512VL-NEXT:    vmovddup {{.*#+}} xmm0 = [1,1]
; AVX512VL-NEXT:    # xmm0 = mem[0,0]
; AVX512VL-NEXT:    retq
;
; AVXIFMA-LABEL: kb52h_128_mask25_and1:
; AVXIFMA:       # %bb.0:
; AVXIFMA-NEXT:    vmovddup {{.*#+}} xmm0 = [1,1]
; AVXIFMA-NEXT:    # xmm0 = mem[0,0]
; AVXIFMA-NEXT:    retq
  %mx  = and <2 x i64> %x, splat (i64 33554431) ; (1<<25)-1
  %my  = and <2 x i64> %y, splat (i64 33554431) ; (1<<25)-1
  %r   = call <2 x i64> @llvm.x86.avx512.vpmadd52h.uq.128(
             <2 x i64> splat (i64 1),
             <2 x i64> %mx,
             <2 x i64> %my)
  %ret = and <2 x i64> %r, splat (i64 1)
  ret <2 x i64> %ret
}

; High-52, 25x26 masked inputs, accumulator = 1, expected constant fold.
define <4 x i64> @kb52h_256_mask25x26_acc1(<4 x i64> %x, <4 x i64> %y) {
; AVX512VL-LABEL: kb52h_256_mask25x26_acc1:
; AVX512VL:       # %bb.0:
; AVX512VL-NEXT:    vbroadcastsd {{.*#+}} ymm0 = [1,1,1,1]
; AVX512VL-NEXT:    retq
;
; AVXIFMA-LABEL: kb52h_256_mask25x26_acc1:
; AVXIFMA:       # %bb.0:
; AVXIFMA-NEXT:    vbroadcastsd {{.*#+}} ymm0 = [1,1,1,1]
; AVXIFMA-NEXT:    retq
  %mx = and <4 x i64> %x, splat (i64 33554431) ; (1<<25)-1
  %my = and <4 x i64> %y, splat (i64 67108863) ; (1<<26)-1
  %r  = call <4 x i64> @llvm.x86.avx512.vpmadd52h.uq.256(
            <4 x i64> splat (i64 1),
            <4 x i64> %mx, <4 x i64> %my)
  ret <4 x i64> %r
}

; Low-52 path

declare <2 x i64> @llvm.x86.avx512.vpmadd52l.uq.128(<2 x i64>, <2 x i64>, <2 x i64>)
declare <4 x i64> @llvm.x86.avx512.vpmadd52l.uq.256(<4 x i64>, <4 x i64>, <4 x i64>)

; Low-52, 26x26 masked inputs, add with accumulator.
define <2 x i64> @kb52l_128_mask26x26_add_intrin(<2 x i64> %x, <2 x i64> %y, <2 x i64> %acc) {
; AVX512VL-LABEL: kb52l_128_mask26x26_add_intrin:
; AVX512VL:       # %bb.0:
; AVX512VL-NEXT:    vpbroadcastq {{.*#+}} xmm3 = [67108863,67108863]
; AVX512VL-NEXT:    vpand %xmm3, %xmm0, %xmm0
; AVX512VL-NEXT:    vpand %xmm3, %xmm1, %xmm1
; AVX512VL-NEXT:    vpmadd52luq %xmm1, %xmm0, %xmm2
; AVX512VL-NEXT:    vmovdqa %xmm2, %xmm0
; AVX512VL-NEXT:    retq
;
; AVXIFMA-LABEL: kb52l_128_mask26x26_add_intrin:
; AVXIFMA:       # %bb.0:
; AVXIFMA-NEXT:    vpbroadcastq {{.*#+}} xmm3 = [67108863,67108863]
; AVXIFMA-NEXT:    vpand %xmm3, %xmm0, %xmm0
; AVXIFMA-NEXT:    vpand %xmm3, %xmm1, %xmm1
; AVXIFMA-NEXT:    {vex} vpmadd52luq %xmm1, %xmm0, %xmm2
; AVXIFMA-NEXT:    vmovdqa %xmm2, %xmm0
; AVXIFMA-NEXT:    retq
  %xm = and <2 x i64> %x, splat (i64 67108863) ; (1<<26)-1
  %ym = and <2 x i64> %y, splat (i64 67108863) ; (1<<26)-1
  %r  = call <2 x i64> @llvm.x86.avx512.vpmadd52l.uq.128(
            <2 x i64> %acc, <2 x i64> %xm, <2 x i64> %ym)
  ret <2 x i64> %r
}

; Low-52, 50-bit × 2-bit masked inputs, add with accumulator.
define <4 x i64> @kb52l_256_mask50x3_add_intrin(<4 x i64> %x, <4 x i64> %y, <4 x i64> %acc) {
; AVX512VL-LABEL: kb52l_256_mask50x3_add_intrin:
; AVX512VL:       # %bb.0:
; AVX512VL-NEXT:    vpandq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to4}, %ymm0, %ymm0
; AVX512VL-NEXT:    vpandq {{\.?LCPI[0-9]+_[0-9]+}}(%rip){1to4}, %ymm1, %ymm1
; AVX512VL-NEXT:    vpmadd52luq %ymm1, %ymm0, %ymm2
; AVX512VL-NEXT:    vmovdqa %ymm2, %ymm0
; AVX512VL-NEXT:    retq
;
; AVXIFMA-LABEL: kb52l_256_mask50x3_add_intrin:
; AVXIFMA:       # %bb.0:
; AVXIFMA-NEXT:    vpbroadcastq {{.*#+}} ymm3 = [1125899906842623,1125899906842623,1125899906842623,1125899906842623]
; AVXIFMA-NEXT:    vpand %ymm3, %ymm0, %ymm0
; AVXIFMA-NEXT:    vpbroadcastq {{.*#+}} ymm3 = [3,3,3,3]
; AVXIFMA-NEXT:    vpand %ymm3, %ymm1, %ymm1
; AVXIFMA-NEXT:    {vex} vpmadd52luq %ymm1, %ymm0, %ymm2
; AVXIFMA-NEXT:    vmovdqa %ymm2, %ymm0
; AVXIFMA-NEXT:    retq
  %xm = and <4 x i64> %x, splat (i64 1125899906842623) ; (1<<50)-1
  %ym = and <4 x i64> %y, splat (i64 3) ; (1<<2)-1
  %r  = call <4 x i64> @llvm.x86.avx512.vpmadd52l.uq.256(
            <4 x i64> %acc, <4 x i64> %xm, <4 x i64> %ym)
  ret <4 x i64> %r
}