Codebase Browser
llvm
Go to App

llvm/llvm/test/CodeGen/AArch64/sve2-intrinsics-combine-rshrnb.ll 

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=aarch64-linux-gnu -mattr=+sve2 < %s | FileCheck %s

define void @add_lshr_rshrnb_b_6(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: add_lshr_rshrnb_b_6:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.b, z0.h, #6
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, trunc (<vscale x 8 x i32> splat (i32 32) to <vscale x 8 x i16>)
  %2 = lshr <vscale x 8 x i16> %1, trunc (<vscale x 8 x i32> splat (i32 6) to <vscale x 8 x i16>)
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i8> %3, ptr %4, align 1
  ret void
}

define void @neg_add_lshr_rshrnb_b_6(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: neg_add_lshr_rshrnb_b_6:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [x0]
; CHECK-NEXT:    add z0.h, z0.h, #1 // =0x1
; CHECK-NEXT:    lsr z0.h, z0.h, #6
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, trunc (<vscale x 8 x i32> splat (i32 1) to <vscale x 8 x i16>)
  %2 = lshr <vscale x 8 x i16> %1, trunc (<vscale x 8 x i32> splat (i32 6) to <vscale x 8 x i16>)
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i8> %3, ptr %4, align 1
  ret void
}

define void @add_lshr_rshrnb_h_7(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: add_lshr_rshrnb_h_7:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.b, z0.h, #7
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, trunc (<vscale x 8 x i32> splat (i32 64) to <vscale x 8 x i16>)
  %2 = lshr <vscale x 8 x i16> %1, trunc (<vscale x 8 x i32> splat (i32 7) to <vscale x 8 x i16>)
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i8> %3, ptr %4, align 1
  ret void
}

define void @add_lshr_rshrn_h_6(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: add_lshr_rshrn_h_6:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    ld1w { z0.s }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.h, z0.s, #6
; CHECK-NEXT:    st1h { z0.s }, p0, [x1, x2, lsl #1]
; CHECK-NEXT:    ret
  %load = load <vscale x 4 x i32>, ptr %ptr, align 2
  %1 = add <vscale x 4 x i32> %load, trunc (<vscale x 4 x i64> splat (i64 32) to <vscale x 4 x i32>)
  %2 = lshr <vscale x 4 x i32> %1, trunc (<vscale x 4 x i64> splat (i64 6) to <vscale x 4 x i32>)
  %3 = trunc <vscale x 4 x i32> %2 to <vscale x 4 x i16>
  %4 = getelementptr inbounds i16, ptr %dst, i64 %index
  store <vscale x 4 x i16> %3, ptr %4, align 1
  ret void
}

define void @add_lshr_rshrnb_h_2(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: add_lshr_rshrnb_h_2:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    ld1w { z0.s }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.h, z0.s, #2
; CHECK-NEXT:    st1h { z0.s }, p0, [x1, x2, lsl #1]
; CHECK-NEXT:    ret
  %load = load <vscale x 4 x i32>, ptr %ptr, align 2
  %1 = add <vscale x 4 x i32> %load, trunc (<vscale x 4 x i64> splat (i64 2) to <vscale x 4 x i32>)
  %2 = lshr <vscale x 4 x i32> %1, trunc (<vscale x 4 x i64> splat (i64 2) to <vscale x 4 x i32>)
  %3 = trunc <vscale x 4 x i32> %2 to <vscale x 4 x i16>
  %4 = getelementptr inbounds i16, ptr %dst, i64 %index
  store <vscale x 4 x i16> %3, ptr %4, align 1
  ret void
}

define void @neg_add_lshr_rshrnb_h_0(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: neg_add_lshr_rshrnb_h_0:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ret
  %load = load <vscale x 4 x i32>, ptr %ptr, align 2
  %1 = add <vscale x 4 x i32> %load, trunc (<vscale x 4 x i64> splat (i64 1) to <vscale x 4 x i32>)
  %2 = lshr <vscale x 4 x i32> %1, trunc (<vscale x 4 x i64> splat (i64 -1) to <vscale x 4 x i32>)
  %3 = trunc <vscale x 4 x i32> %2 to <vscale x 4 x i16>
  %4 = getelementptr inbounds i16, ptr %dst, i64 %index
  store <vscale x 4 x i16> %3, ptr %4, align 1
  ret void
}

define void @neg_zero_shift(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: neg_zero_shift:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    ld1w { z0.s }, p0/z, [x0]
; CHECK-NEXT:    add z0.s, z0.s, #1 // =0x1
; CHECK-NEXT:    st1h { z0.s }, p0, [x1, x2, lsl #1]
; CHECK-NEXT:    ret
  %load = load <vscale x 4 x i32>, ptr %ptr, align 2
  %1 = add <vscale x 4 x i32> %load, trunc (<vscale x 4 x i64> splat (i64 1) to <vscale x 4 x i32>)
  %2 = lshr <vscale x 4 x i32> %1, trunc (<vscale x 4 x i64> splat (i64 0) to <vscale x 4 x i32>)
  %3 = trunc <vscale x 4 x i32> %2 to <vscale x 4 x i16>
  %4 = getelementptr inbounds i16, ptr %dst, i64 %index
  store <vscale x 4 x i16> %3, ptr %4, align 1
  ret void
}

define void @wide_add_shift_add_rshrnb_b(ptr %dest, i64 %index, <vscale x 16 x i16> %arg1){
; CHECK-LABEL: wide_add_shift_add_rshrnb_b:
; CHECK:       // %bb.0:
; CHECK-NEXT:    rshrnb z1.b, z1.h, #6
; CHECK-NEXT:    rshrnb z0.b, z0.h, #6
; CHECK-NEXT:    ptrue p0.b
; CHECK-NEXT:    ld1b { z2.b }, p0/z, [x0, x1]
; CHECK-NEXT:    uzp1 z0.b, z0.b, z1.b
; CHECK-NEXT:    add z0.b, z2.b, z0.b
; CHECK-NEXT:    st1b { z0.b }, p0, [x0, x1]
; CHECK-NEXT:    ret
  %1 = add <vscale x 16 x i16> %arg1, splat (i16 32)
  %2 = lshr <vscale x 16 x i16> %1, splat (i16 6)
  %3 = getelementptr inbounds i8, ptr %dest, i64 %index
  %load = load <vscale x 16 x i8>, ptr %3, align 2
  %4 = trunc <vscale x 16 x i16> %2 to <vscale x 16 x i8>
  %5 = add <vscale x 16 x i8> %load, %4
  store <vscale x 16 x i8> %5, ptr %3, align 2
  ret void
}

define void @wide_add_shift_add_rshrnb_h(ptr %dest, i64 %index, <vscale x 8 x i32> %arg1){
; CHECK-LABEL: wide_add_shift_add_rshrnb_h:
; CHECK:       // %bb.0:
; CHECK-NEXT:    rshrnb z1.h, z1.s, #6
; CHECK-NEXT:    rshrnb z0.h, z0.s, #6
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z2.h }, p0/z, [x0, x1, lsl #1]
; CHECK-NEXT:    uzp1 z0.h, z0.h, z1.h
; CHECK-NEXT:    add z0.h, z2.h, z0.h
; CHECK-NEXT:    st1h { z0.h }, p0, [x0, x1, lsl #1]
; CHECK-NEXT:    ret
  %1 = add <vscale x 8 x i32> %arg1, splat (i32 32)
  %2 = lshr <vscale x 8 x i32> %1, splat (i32 6)
  %3 = getelementptr inbounds i16, ptr %dest, i64 %index
  %load = load <vscale x 8 x i16>, ptr %3, align 2
  %4 = trunc <vscale x 8 x i32> %2 to <vscale x 8 x i16>
  %5 = add <vscale x 8 x i16> %load, %4
  store <vscale x 8 x i16> %5, ptr %3, align 2
  ret void
}

define void @wide_add_shift_add_rshrnb_d(ptr %dest, i64 %index, <vscale x 4 x i64> %arg1){
; CHECK-LABEL: wide_add_shift_add_rshrnb_d:
; CHECK:       // %bb.0:
; CHECK-NEXT:    rshrnb z1.s, z1.d, #32
; CHECK-NEXT:    rshrnb z0.s, z0.d, #32
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    ld1w { z2.s }, p0/z, [x0, x1, lsl #2]
; CHECK-NEXT:    uzp1 z0.s, z0.s, z1.s
; CHECK-NEXT:    add z0.s, z2.s, z0.s
; CHECK-NEXT:    st1w { z0.s }, p0, [x0, x1, lsl #2]
; CHECK-NEXT:    ret
  %1 = add <vscale x 4 x i64> %arg1, splat (i64 2147483648)
  %2 = lshr <vscale x 4 x i64> %1, splat (i64 32)
  %3 = getelementptr inbounds i32, ptr %dest, i64 %index
  %load = load <vscale x 4 x i32>, ptr %3, align 4
  %4 = trunc <vscale x 4 x i64> %2 to <vscale x 4 x i32>
  %5 = add <vscale x 4 x i32> %load, %4
  store <vscale x 4 x i32> %5, ptr %3, align 4
  ret void
}

; Do not emit rshrnb if the shift amount is larger than the dest eltsize in bits
define void @neg_wide_add_shift_add_rshrnb_d(ptr %dest, i64 %index, <vscale x 4 x i64> %arg1){
; CHECK-LABEL: neg_wide_add_shift_add_rshrnb_d:
; CHECK:       // %bb.0:
; CHECK-NEXT:    mov z2.d, #0x800000000000
; CHECK-NEXT:    ptrue p0.s
; CHECK-NEXT:    add z0.d, z0.d, z2.d
; CHECK-NEXT:    add z1.d, z1.d, z2.d
; CHECK-NEXT:    ld1w { z2.s }, p0/z, [x0, x1, lsl #2]
; CHECK-NEXT:    lsr z1.d, z1.d, #48
; CHECK-NEXT:    lsr z0.d, z0.d, #48
; CHECK-NEXT:    uzp1 z0.s, z0.s, z1.s
; CHECK-NEXT:    add z0.s, z2.s, z0.s
; CHECK-NEXT:    st1w { z0.s }, p0, [x0, x1, lsl #2]
; CHECK-NEXT:    ret
  %1 = add <vscale x 4 x i64> %arg1, splat (i64 140737488355328)
  %2 = lshr <vscale x 4 x i64> %1, splat (i64 48)
  %3 = getelementptr inbounds i32, ptr %dest, i64 %index
  %load = load <vscale x 4 x i32>, ptr %3, align 4
  %4 = trunc <vscale x 4 x i64> %2 to <vscale x 4 x i32>
  %5 = add <vscale x 4 x i32> %load, %4
  store <vscale x 4 x i32> %5, ptr %3, align 4
  ret void
}

define void @neg_trunc_lsr_add_op1_not_splat(ptr %ptr, ptr %dst, i64 %index, <vscale x 8 x i16> %add_op1){
; CHECK-LABEL: neg_trunc_lsr_add_op1_not_splat:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z1.h }, p0/z, [x0]
; CHECK-NEXT:    add z0.h, z1.h, z0.h
; CHECK-NEXT:    lsr z0.h, z0.h, #6
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, %add_op1
  %2 = lshr <vscale x 8 x i16> %1, splat (i16 6)
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i8> %3, ptr %4, align 1
  ret void
}

define void @neg_trunc_lsr_op1_not_splat(ptr %ptr, ptr %dst, i64 %index, <vscale x 8 x i16> %lshr_op1){
; CHECK-LABEL: neg_trunc_lsr_op1_not_splat:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z1.h }, p0/z, [x0]
; CHECK-NEXT:    add z1.h, z1.h, #32 // =0x20
; CHECK-NEXT:    lsrr z0.h, p0/m, z0.h, z1.h
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, splat (i16 32)
  %2 = lshr <vscale x 8 x i16> %1, %lshr_op1
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i8> %3, ptr %4, align 1
  ret void
}

define void @neg_add_has_two_uses(ptr %ptr, ptr %dst, ptr %dst2, i64 %index){
; CHECK-LABEL: neg_add_has_two_uses:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.h
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [x0]
; CHECK-NEXT:    add z0.h, z0.h, #32 // =0x20
; CHECK-NEXT:    add z1.h, z0.h, z0.h
; CHECK-NEXT:    lsr z0.h, z0.h, #6
; CHECK-NEXT:    st1h { z1.h }, p0, [x2, x3, lsl #1]
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x3]
; CHECK-NEXT:    ret
  %load = load <vscale x 8 x i16>, ptr %ptr, align 2
  %1 = add <vscale x 8 x i16> %load, trunc (<vscale x 8 x i32> splat (i32 32) to <vscale x 8 x i16>)
  %2 = lshr <vscale x 8 x i16> %1, trunc (<vscale x 8 x i32> splat (i32 6) to <vscale x 8 x i16>)
  %3 = add <vscale x 8 x i16> %1, %1
  %4 = getelementptr inbounds i16, ptr %dst2, i64 %index
  %5 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %6 = getelementptr inbounds i8, ptr %dst, i64 %index
  store <vscale x 8 x i16> %3, ptr %4, align 1
  store <vscale x 8 x i8> %5, ptr %6, align 1
  ret void
}

define void @add_lshr_rshrnb_s(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: add_lshr_rshrnb_s:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.d
; CHECK-NEXT:    ld1d { z0.d }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.s, z0.d, #6
; CHECK-NEXT:    st1w { z0.d }, p0, [x1, x2, lsl #2]
; CHECK-NEXT:    ret
  %load = load <vscale x 2 x i64>, ptr %ptr, align 2
  %1 = add <vscale x 2 x i64> %load, splat (i64 32)
  %2 = lshr <vscale x 2 x i64> %1, splat (i64 6)
  %3 = trunc <vscale x 2 x i64> %2 to <vscale x 2 x i32>
  %4 = getelementptr inbounds i32, ptr %dst, i64 %index
  store <vscale x 2 x i32> %3, ptr %4, align 1
  ret void
}

define void @neg_add_lshr_rshrnb_s(ptr %ptr, ptr %dst, i64 %index){
; CHECK-LABEL: neg_add_lshr_rshrnb_s:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ptrue p0.d
; CHECK-NEXT:    ld1d { z0.d }, p0/z, [x0]
; CHECK-NEXT:    add z0.d, z0.d, #32 // =0x20
; CHECK-NEXT:    lsr z0.d, z0.d, #6
; CHECK-NEXT:    st1h { z0.d }, p0, [x1, x2, lsl #1]
; CHECK-NEXT:    ret
  %load = load <vscale x 2 x i64>, ptr %ptr, align 2
  %1 = add <vscale x 2 x i64> %load, splat (i64 32)
  %2 = lshr <vscale x 2 x i64> %1, splat (i64 6)
  %3 = trunc <vscale x 2 x i64> %2 to <vscale x 2 x i16>
  %4 = getelementptr inbounds i16, ptr %dst, i64 %index
  store <vscale x 2 x i16> %3, ptr %4, align 1
  ret void
}

define void @masked_store_rshrnb(ptr %ptr, ptr %dst, i64 %index, <vscale x 8 x i1> %mask) {                             ; preds = %vector.body, %vector.ph
; CHECK-LABEL: masked_store_rshrnb:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ld1h { z0.h }, p0/z, [x0]
; CHECK-NEXT:    rshrnb z0.b, z0.h, #6
; CHECK-NEXT:    st1b { z0.h }, p0, [x1, x2]
; CHECK-NEXT:    ret
  %wide.masked.load = tail call <vscale x 8 x i16> @llvm.masked.load.nxv8i16.p0(ptr %ptr, i32 2, <vscale x 8 x i1> %mask, <vscale x 8 x i16> poison)
  %1 = add <vscale x 8 x i16> %wide.masked.load, trunc (<vscale x 8 x i32> splat (i32 32) to <vscale x 8 x i16>)
  %2 = lshr <vscale x 8 x i16> %1, trunc (<vscale x 8 x i32> splat (i32 6) to <vscale x 8 x i16>)
  %3 = trunc <vscale x 8 x i16> %2 to <vscale x 8 x i8>
  %4 = getelementptr inbounds i8, ptr %dst, i64 %index
  tail call void @llvm.masked.store.nxv8i8.p0(<vscale x 8 x i8> %3, ptr %4, i32 1, <vscale x 8 x i1> %mask)
  ret void
}

declare void @llvm.masked.store.nxv8i8.p0(<vscale x 8 x i8>, ptr, i32, <vscale x 8 x i1>)
declare <vscale x 8 x i16> @llvm.masked.load.nxv8i16.p0(ptr, i32, <vscale x 8 x i1>, <vscale x 8 x i16>)