1 ; RUN: llc -march=arm64 -aarch64-neon-syntax=apple -o - %s| FileCheck %s 2 3 define <16 x i8> @foov16i8(<8 x i16> %a0, <8 x i16> %b0) nounwind readnone ssp { 4 ; CHECK-LABEL: foov16i8: 5 %vshrn_low_shift = lshr <8 x i16> %a0, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5> 6 %vshrn_low = trunc <8 x i16> %vshrn_low_shift to <8 x i8> 7 %vshrn_high_shift = lshr <8 x i16> %b0, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5> 8 %vshrn_high = trunc <8 x i16> %vshrn_high_shift to <8 x i8> 9 ; CHECK: shrn.8b v0, v0, #5 10 ; CHECK-NEXT: shrn2.16b v0, v1, #5 11 ; CHECK-NEXT: ret 12 %1 = bitcast <8 x i8> %vshrn_low to <1 x i64> 13 %2 = bitcast <8 x i8> %vshrn_high to <1 x i64> 14 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 15 %3 = bitcast <2 x i64> %shuffle.i to <16 x i8> 16 ret <16 x i8> %3 17 } 18 19 define <8 x i16> @foov8i16(<4 x i32> %a0, <4 x i32> %b0) nounwind readnone ssp { 20 ; CHECK-LABEL: foov8i16: 21 %vshrn_low_shift = lshr <4 x i32> %a0, <i32 5, i32 5, i32 5, i32 5> 22 %vshrn_low = trunc <4 x i32> %vshrn_low_shift to <4 x i16> 23 %vshrn_high_shift = lshr <4 x i32> %b0, <i32 5, i32 5, i32 5, i32 5> 24 %vshrn_high = trunc <4 x i32> %vshrn_high_shift to <4 x i16> 25 ; CHECK: shrn.4h v0, v0, #5 26 ; CHECK-NEXT: shrn2.8h v0, v1, #5 27 ; CHECK-NEXT: ret 28 %1 = bitcast <4 x i16> %vshrn_low to <1 x i64> 29 %2 = bitcast <4 x i16> %vshrn_high to <1 x i64> 30 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 31 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 32 ret <8 x i16> %3 33 } 34 35 define <4 x i32> @foov4i32(<2 x i64> %a0, <2 x i64> %b0) nounwind readnone ssp { 36 ; CHECK-LABEL: foov4i32: 37 %vshrn_low_shift = lshr <2 x i64> %a0, <i64 5, i64 5> 38 %vshrn_low = trunc <2 x i64> %vshrn_low_shift to <2 x i32> 39 %vshrn_high_shift = lshr <2 x i64> %b0, <i64 5, i64 5> 40 %vshrn_high = trunc <2 x i64> %vshrn_high_shift to <2 x i32> 41 ; CHECK: shrn.2s v0, v0, #5 42 ; CHECK-NEXT: shrn2.4s v0, v1, #5 43 ; CHECK-NEXT: ret 44 %1 = bitcast <2 x i32> %vshrn_low to <1 x i64> 45 %2 = bitcast <2 x i32> %vshrn_high to <1 x i64> 46 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 47 %3 = bitcast <2 x i64> %shuffle.i to <4 x i32> 48 ret <4 x i32> %3 49 } 50 51 define <8 x i16> @bar(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %b0, <4 x i32> %b1) nounwind readnone ssp { 52 ; CHECK-LABEL: bar: 53 %vaddhn2.i = tail call <4 x i16> @llvm.aarch64.neon.addhn.v4i16(<4 x i32> %a0, <4 x i32> %a1) nounwind 54 %vaddhn2.i10 = tail call <4 x i16> @llvm.aarch64.neon.addhn.v4i16(<4 x i32> %b0, <4 x i32> %b1) nounwind 55 ; CHECK: addhn.4h v0, v0, v1 56 ; CHECK-NEXT: addhn2.8h v0, v2, v3 57 ; CHECK-NEXT: ret 58 %1 = bitcast <4 x i16> %vaddhn2.i to <1 x i64> 59 %2 = bitcast <4 x i16> %vaddhn2.i10 to <1 x i64> 60 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 61 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 62 ret <8 x i16> %3 63 } 64 65 define <8 x i16> @baz(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %b0, <4 x i32> %b1) nounwind readnone ssp { 66 ; CHECK-LABEL: baz: 67 %vaddhn2.i = tail call <4 x i16> @llvm.aarch64.neon.addhn.v4i16(<4 x i32> %a0, <4 x i32> %a1) nounwind 68 %vshrn_high_shift = ashr <4 x i32> %b0, <i32 5, i32 5, i32 5, i32 5> 69 %vshrn_high = trunc <4 x i32> %vshrn_high_shift to <4 x i16> 70 ; CHECK: addhn.4h v0, v0, v1 71 ; CHECK-NEXT: shrn2.8h v0, v2, #5 72 ; CHECK-NEXT: ret 73 %1 = bitcast <4 x i16> %vaddhn2.i to <1 x i64> 74 %2 = bitcast <4 x i16> %vshrn_high to <1 x i64> 75 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 76 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 77 ret <8 x i16> %3 78 } 79 80 define <8 x i16> @raddhn(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %b0, <4 x i32> %b1) nounwind readnone ssp { 81 ; CHECK-LABEL: raddhn: 82 entry: 83 ; CHECK: raddhn.4h v0, v0, v1 84 ; CHECK-NEXT: raddhn2.8h v0, v2, v3 85 ; CHECK-NEXT: ret 86 %vraddhn2.i = tail call <4 x i16> @llvm.aarch64.neon.raddhn.v4i16(<4 x i32> %a0, <4 x i32> %a1) nounwind 87 %vraddhn2.i10 = tail call <4 x i16> @llvm.aarch64.neon.raddhn.v4i16(<4 x i32> %b0, <4 x i32> %b1) nounwind 88 %0 = bitcast <4 x i16> %vraddhn2.i to <1 x i64> 89 %1 = bitcast <4 x i16> %vraddhn2.i10 to <1 x i64> 90 %shuffle.i = shufflevector <1 x i64> %0, <1 x i64> %1, <2 x i32> <i32 0, i32 1> 91 %2 = bitcast <2 x i64> %shuffle.i to <8 x i16> 92 ret <8 x i16> %2 93 } 94 95 define <8 x i16> @vrshrn(<8 x i16> %a0, <8 x i16> %a1, <8 x i16> %b0, <8 x i16> %b1) nounwind readnone ssp { 96 ; CHECK-LABEL: vrshrn: 97 ; CHECK: rshrn.8b v0, v0, #5 98 ; CHECK-NEXT: rshrn2.16b v0, v2, #6 99 ; CHECK-NEXT: ret 100 %vrshrn_n1 = tail call <8 x i8> @llvm.aarch64.neon.rshrn.v8i8(<8 x i16> %a0, i32 5) 101 %vrshrn_n4 = tail call <8 x i8> @llvm.aarch64.neon.rshrn.v8i8(<8 x i16> %b0, i32 6) 102 %1 = bitcast <8 x i8> %vrshrn_n1 to <1 x i64> 103 %2 = bitcast <8 x i8> %vrshrn_n4 to <1 x i64> 104 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 105 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 106 ret <8 x i16> %3 107 } 108 109 define <8 x i16> @vrsubhn(<8 x i16> %a0, <8 x i16> %a1, <8 x i16> %b0, <8 x i16> %b1) nounwind readnone ssp { 110 ; CHECK-LABEL: vrsubhn: 111 ; CHECK: rsubhn.8b v0, v0, v1 112 ; CHECK: rsubhn2.16b v0, v2, v3 113 ; CHECK-NEXT: ret 114 %vrsubhn2.i = tail call <8 x i8> @llvm.aarch64.neon.rsubhn.v8i8(<8 x i16> %a0, <8 x i16> %a1) nounwind 115 %vrsubhn2.i10 = tail call <8 x i8> @llvm.aarch64.neon.rsubhn.v8i8(<8 x i16> %b0, <8 x i16> %b1) nounwind 116 %1 = bitcast <8 x i8> %vrsubhn2.i to <1 x i64> 117 %2 = bitcast <8 x i8> %vrsubhn2.i10 to <1 x i64> 118 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 119 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 120 ret <8 x i16> %3 121 } 122 123 define <8 x i16> @noOpt1(<2 x i32> %a0, <2 x i32> %a1, <4 x i32> %b0, <4 x i32> %b1) nounwind readnone ssp { 124 ; CHECK-LABEL: noOpt1: 125 %vqsub2.i = tail call <2 x i32> @llvm.aarch64.neon.sqsub.v2i32(<2 x i32> %a0, <2 x i32> %a1) nounwind 126 %vaddhn2.i = tail call <4 x i16> @llvm.aarch64.neon.addhn.v4i16(<4 x i32> %b0, <4 x i32> %b1) nounwind 127 ; CHECK: sqsub.2s v0, v0, v1 128 ; CHECK-NEXT: addhn2.8h v0, v2, v3 129 %1 = bitcast <2 x i32> %vqsub2.i to <1 x i64> 130 %2 = bitcast <4 x i16> %vaddhn2.i to <1 x i64> 131 %shuffle.i = shufflevector <1 x i64> %1, <1 x i64> %2, <2 x i32> <i32 0, i32 1> 132 %3 = bitcast <2 x i64> %shuffle.i to <8 x i16> 133 ret <8 x i16> %3 134 } 135 136 declare <2 x i32> @llvm.aarch64.neon.sqsub.v2i32(<2 x i32>, <2 x i32>) nounwind readnone 137 138 declare <8 x i8> @llvm.aarch64.neon.shrn.v8i8(<8 x i16>, i32) nounwind readnone 139 declare <4 x i16> @llvm.aarch64.neon.shrn.v4i16(<4 x i32>, i32) nounwind readnone 140 declare <2 x i32> @llvm.aarch64.neon.shrn.v2i32(<2 x i64>, i32) nounwind readnone 141 declare <4 x i16> @llvm.aarch64.neon.addhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone 142 declare <4 x i16> @llvm.aarch64.neon.raddhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone 143 declare <8 x i8> @llvm.aarch64.neon.rshrn.v8i8(<8 x i16>, i32) nounwind readnone 144 declare <8 x i8> @llvm.aarch64.neon.rsubhn.v8i8(<8 x i16>, <8 x i16>) nounwind readnone 145 146
