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llvm-6502/test/CodeGen/ARM64/vsub.ll
Tim Northover 7b837d8c75 ARM64: initial backend import 
This adds a second implementation of the AArch64 architecture to LLVM,
accessible in parallel via the "arm64" triple. The plan over the
coming weeks & months is to merge the two into a single backend,
during which time thorough code review should naturally occur.

Everything will be easier with the target in-tree though, hence this
commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205090 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-29 10:18:08 +00:00

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; RUN: llc < %s -march=arm64 -arm64-neon-syntax=apple | FileCheck %s
define <8 x i8> @subhn8b(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: subhn8b:
;CHECK: subhn.8b
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i16>* %B
%tmp3 = call <8 x i8> @llvm.arm64.neon.subhn.v8i8(<8 x i16> %tmp1, <8 x i16> %tmp2)
ret <8 x i8> %tmp3
}
define <4 x i16> @subhn4h(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: subhn4h:
;CHECK: subhn.4h
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i32>* %B
%tmp3 = call <4 x i16> @llvm.arm64.neon.subhn.v4i16(<4 x i32> %tmp1, <4 x i32> %tmp2)
ret <4 x i16> %tmp3
}
define <2 x i32> @subhn2s(<2 x i64>* %A, <2 x i64>* %B) nounwind {
;CHECK-LABEL: subhn2s:
;CHECK: subhn.2s
%tmp1 = load <2 x i64>* %A
%tmp2 = load <2 x i64>* %B
%tmp3 = call <2 x i32> @llvm.arm64.neon.subhn.v2i32(<2 x i64> %tmp1, <2 x i64> %tmp2)
ret <2 x i32> %tmp3
}
define <16 x i8> @subhn2_16b(<8 x i16> %a, <8 x i16> %b) nounwind {
;CHECK-LABEL: subhn2_16b:
;CHECK: subhn.8b
;CHECK-NEXT: subhn2.16b
%vsubhn2.i = tail call <8 x i8> @llvm.arm64.neon.subhn.v8i8(<8 x i16> %a, <8 x i16> %b) nounwind
%vsubhn_high2.i = tail call <8 x i8> @llvm.arm64.neon.subhn.v8i8(<8 x i16> %a, <8 x i16> %b) nounwind
%res = shufflevector <8 x i8> %vsubhn2.i, <8 x i8> %vsubhn_high2.i, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
ret <16 x i8> %res
}
define <8 x i16> @subhn2_8h(<4 x i32> %a, <4 x i32> %b) nounwind {
;CHECK-LABEL: subhn2_8h:
;CHECK: subhn.4h
;CHECK-NEXT: subhn2.8h
%vsubhn2.i = tail call <4 x i16> @llvm.arm64.neon.subhn.v4i16(<4 x i32> %a, <4 x i32> %b) nounwind
%vsubhn_high3.i = tail call <4 x i16> @llvm.arm64.neon.subhn.v4i16(<4 x i32> %a, <4 x i32> %b) nounwind
%res = shufflevector <4 x i16> %vsubhn2.i, <4 x i16> %vsubhn_high3.i, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
ret <8 x i16> %res
}
define <4 x i32> @subhn2_4s(<2 x i64> %a, <2 x i64> %b) nounwind {
;CHECK-LABEL: subhn2_4s:
;CHECK: subhn.2s
;CHECK-NEXT: subhn2.4s
%vsubhn2.i = tail call <2 x i32> @llvm.arm64.neon.subhn.v2i32(<2 x i64> %a, <2 x i64> %b) nounwind
%vsubhn_high3.i = tail call <2 x i32> @llvm.arm64.neon.subhn.v2i32(<2 x i64> %a, <2 x i64> %b) nounwind
%res = shufflevector <2 x i32> %vsubhn2.i, <2 x i32> %vsubhn_high3.i, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
ret <4 x i32> %res
}
declare <2 x i32> @llvm.arm64.neon.subhn.v2i32(<2 x i64>, <2 x i64>) nounwind readnone
declare <4 x i16> @llvm.arm64.neon.subhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone
declare <8 x i8> @llvm.arm64.neon.subhn.v8i8(<8 x i16>, <8 x i16>) nounwind readnone
define <8 x i8> @rsubhn8b(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: rsubhn8b:
;CHECK: rsubhn.8b
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i16>* %B
%tmp3 = call <8 x i8> @llvm.arm64.neon.rsubhn.v8i8(<8 x i16> %tmp1, <8 x i16> %tmp2)
ret <8 x i8> %tmp3
}
define <4 x i16> @rsubhn4h(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: rsubhn4h:
;CHECK: rsubhn.4h
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i32>* %B
%tmp3 = call <4 x i16> @llvm.arm64.neon.rsubhn.v4i16(<4 x i32> %tmp1, <4 x i32> %tmp2)
ret <4 x i16> %tmp3
}
define <2 x i32> @rsubhn2s(<2 x i64>* %A, <2 x i64>* %B) nounwind {
;CHECK-LABEL: rsubhn2s:
;CHECK: rsubhn.2s
%tmp1 = load <2 x i64>* %A
%tmp2 = load <2 x i64>* %B
%tmp3 = call <2 x i32> @llvm.arm64.neon.rsubhn.v2i32(<2 x i64> %tmp1, <2 x i64> %tmp2)
ret <2 x i32> %tmp3
}
define <16 x i8> @rsubhn2_16b(<8 x i16> %a, <8 x i16> %b) nounwind {
;CHECK-LABEL: rsubhn2_16b:
;CHECK: rsubhn.8b
;CHECK-NEXT: rsubhn2.16b
%vrsubhn2.i = tail call <8 x i8> @llvm.arm64.neon.rsubhn.v8i8(<8 x i16> %a, <8 x i16> %b) nounwind
%vrsubhn_high2.i = tail call <8 x i8> @llvm.arm64.neon.rsubhn.v8i8(<8 x i16> %a, <8 x i16> %b) nounwind
%res = shufflevector <8 x i8> %vrsubhn2.i, <8 x i8> %vrsubhn_high2.i, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
ret <16 x i8> %res
}
define <8 x i16> @rsubhn2_8h(<4 x i32> %a, <4 x i32> %b) nounwind {
;CHECK-LABEL: rsubhn2_8h:
;CHECK: rsubhn.4h
;CHECK-NEXT: rsubhn2.8h
%vrsubhn2.i = tail call <4 x i16> @llvm.arm64.neon.rsubhn.v4i16(<4 x i32> %a, <4 x i32> %b) nounwind
%vrsubhn_high3.i = tail call <4 x i16> @llvm.arm64.neon.rsubhn.v4i16(<4 x i32> %a, <4 x i32> %b) nounwind
%res = shufflevector <4 x i16> %vrsubhn2.i, <4 x i16> %vrsubhn_high3.i, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
ret <8 x i16> %res
}
define <4 x i32> @rsubhn2_4s(<2 x i64> %a, <2 x i64> %b) nounwind {
;CHECK-LABEL: rsubhn2_4s:
;CHECK: rsubhn.2s
;CHECK-NEXT: rsubhn2.4s
%vrsubhn2.i = tail call <2 x i32> @llvm.arm64.neon.rsubhn.v2i32(<2 x i64> %a, <2 x i64> %b) nounwind
%vrsubhn_high3.i = tail call <2 x i32> @llvm.arm64.neon.rsubhn.v2i32(<2 x i64> %a, <2 x i64> %b) nounwind
%res = shufflevector <2 x i32> %vrsubhn2.i, <2 x i32> %vrsubhn_high3.i, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
ret <4 x i32> %res
}
declare <2 x i32> @llvm.arm64.neon.rsubhn.v2i32(<2 x i64>, <2 x i64>) nounwind readnone
declare <4 x i16> @llvm.arm64.neon.rsubhn.v4i16(<4 x i32>, <4 x i32>) nounwind readnone
declare <8 x i8> @llvm.arm64.neon.rsubhn.v8i8(<8 x i16>, <8 x i16>) nounwind readnone
define <8 x i16> @ssubl8h(<8 x i8>* %A, <8 x i8>* %B) nounwind {
;CHECK-LABEL: ssubl8h:
;CHECK: ssubl.8h
%tmp1 = load <8 x i8>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = sext <8 x i8> %tmp1 to <8 x i16>
%tmp4 = sext <8 x i8> %tmp2 to <8 x i16>
%tmp5 = sub <8 x i16> %tmp3, %tmp4
ret <8 x i16> %tmp5
}
define <4 x i32> @ssubl4s(<4 x i16>* %A, <4 x i16>* %B) nounwind {
;CHECK-LABEL: ssubl4s:
;CHECK: ssubl.4s
%tmp1 = load <4 x i16>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = sext <4 x i16> %tmp1 to <4 x i32>
%tmp4 = sext <4 x i16> %tmp2 to <4 x i32>
%tmp5 = sub <4 x i32> %tmp3, %tmp4
ret <4 x i32> %tmp5
}
define <2 x i64> @ssubl2d(<2 x i32>* %A, <2 x i32>* %B) nounwind {
;CHECK-LABEL: ssubl2d:
;CHECK: ssubl.2d
%tmp1 = load <2 x i32>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = sext <2 x i32> %tmp1 to <2 x i64>
%tmp4 = sext <2 x i32> %tmp2 to <2 x i64>
%tmp5 = sub <2 x i64> %tmp3, %tmp4
ret <2 x i64> %tmp5
}
define <8 x i16> @ssubl2_8h(<16 x i8>* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: ssubl2_8h:
;CHECK: ssubl2.8h
%tmp1 = load <16 x i8>* %A
%high1 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext1 = sext <8 x i8> %high1 to <8 x i16>
%tmp2 = load <16 x i8>* %B
%high2 = shufflevector <16 x i8> %tmp2, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext2 = sext <8 x i8> %high2 to <8 x i16>
%res = sub <8 x i16> %ext1, %ext2
ret <8 x i16> %res
}
define <4 x i32> @ssubl2_4s(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: ssubl2_4s:
;CHECK: ssubl2.4s
%tmp1 = load <8 x i16>* %A
%high1 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext1 = sext <4 x i16> %high1 to <4 x i32>
%tmp2 = load <8 x i16>* %B
%high2 = shufflevector <8 x i16> %tmp2, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext2 = sext <4 x i16> %high2 to <4 x i32>
%res = sub <4 x i32> %ext1, %ext2
ret <4 x i32> %res
}
define <2 x i64> @ssubl2_2d(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: ssubl2_2d:
;CHECK: ssubl2.2d
%tmp1 = load <4 x i32>* %A
%high1 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext1 = sext <2 x i32> %high1 to <2 x i64>
%tmp2 = load <4 x i32>* %B
%high2 = shufflevector <4 x i32> %tmp2, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext2 = sext <2 x i32> %high2 to <2 x i64>
%res = sub <2 x i64> %ext1, %ext2
ret <2 x i64> %res
}
define <8 x i16> @usubl8h(<8 x i8>* %A, <8 x i8>* %B) nounwind {
;CHECK-LABEL: usubl8h:
;CHECK: usubl.8h
%tmp1 = load <8 x i8>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = zext <8 x i8> %tmp1 to <8 x i16>
%tmp4 = zext <8 x i8> %tmp2 to <8 x i16>
%tmp5 = sub <8 x i16> %tmp3, %tmp4
ret <8 x i16> %tmp5
}
define <4 x i32> @usubl4s(<4 x i16>* %A, <4 x i16>* %B) nounwind {
;CHECK-LABEL: usubl4s:
;CHECK: usubl.4s
%tmp1 = load <4 x i16>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = zext <4 x i16> %tmp1 to <4 x i32>
%tmp4 = zext <4 x i16> %tmp2 to <4 x i32>
%tmp5 = sub <4 x i32> %tmp3, %tmp4
ret <4 x i32> %tmp5
}
define <2 x i64> @usubl2d(<2 x i32>* %A, <2 x i32>* %B) nounwind {
;CHECK-LABEL: usubl2d:
;CHECK: usubl.2d
%tmp1 = load <2 x i32>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = zext <2 x i32> %tmp1 to <2 x i64>
%tmp4 = zext <2 x i32> %tmp2 to <2 x i64>
%tmp5 = sub <2 x i64> %tmp3, %tmp4
ret <2 x i64> %tmp5
}
define <8 x i16> @usubl2_8h(<16 x i8>* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: usubl2_8h:
;CHECK: usubl2.8h
%tmp1 = load <16 x i8>* %A
%high1 = shufflevector <16 x i8> %tmp1, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext1 = zext <8 x i8> %high1 to <8 x i16>
%tmp2 = load <16 x i8>* %B
%high2 = shufflevector <16 x i8> %tmp2, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext2 = zext <8 x i8> %high2 to <8 x i16>
%res = sub <8 x i16> %ext1, %ext2
ret <8 x i16> %res
}
define <4 x i32> @usubl2_4s(<8 x i16>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: usubl2_4s:
;CHECK: usubl2.4s
%tmp1 = load <8 x i16>* %A
%high1 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext1 = zext <4 x i16> %high1 to <4 x i32>
%tmp2 = load <8 x i16>* %B
%high2 = shufflevector <8 x i16> %tmp2, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext2 = zext <4 x i16> %high2 to <4 x i32>
%res = sub <4 x i32> %ext1, %ext2
ret <4 x i32> %res
}
define <2 x i64> @usubl2_2d(<4 x i32>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: usubl2_2d:
;CHECK: usubl2.2d
%tmp1 = load <4 x i32>* %A
%high1 = shufflevector <4 x i32> %tmp1, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext1 = zext <2 x i32> %high1 to <2 x i64>
%tmp2 = load <4 x i32>* %B
%high2 = shufflevector <4 x i32> %tmp2, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext2 = zext <2 x i32> %high2 to <2 x i64>
%res = sub <2 x i64> %ext1, %ext2
ret <2 x i64> %res
}
define <8 x i16> @ssubw8h(<8 x i16>* %A, <8 x i8>* %B) nounwind {
;CHECK-LABEL: ssubw8h:
;CHECK: ssubw.8h
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = sext <8 x i8> %tmp2 to <8 x i16>
%tmp4 = sub <8 x i16> %tmp1, %tmp3
ret <8 x i16> %tmp4
}
define <4 x i32> @ssubw4s(<4 x i32>* %A, <4 x i16>* %B) nounwind {
;CHECK-LABEL: ssubw4s:
;CHECK: ssubw.4s
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = sext <4 x i16> %tmp2 to <4 x i32>
%tmp4 = sub <4 x i32> %tmp1, %tmp3
ret <4 x i32> %tmp4
}
define <2 x i64> @ssubw2d(<2 x i64>* %A, <2 x i32>* %B) nounwind {
;CHECK-LABEL: ssubw2d:
;CHECK: ssubw.2d
%tmp1 = load <2 x i64>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = sext <2 x i32> %tmp2 to <2 x i64>
%tmp4 = sub <2 x i64> %tmp1, %tmp3
ret <2 x i64> %tmp4
}
define <8 x i16> @ssubw2_8h(<8 x i16>* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: ssubw2_8h:
;CHECK: ssubw2.8h
%tmp1 = load <8 x i16>* %A
%tmp2 = load <16 x i8>* %B
%high2 = shufflevector <16 x i8> %tmp2, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext2 = sext <8 x i8> %high2 to <8 x i16>
%res = sub <8 x i16> %tmp1, %ext2
ret <8 x i16> %res
}
define <4 x i32> @ssubw2_4s(<4 x i32>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: ssubw2_4s:
;CHECK: ssubw2.4s
%tmp1 = load <4 x i32>* %A
%tmp2 = load <8 x i16>* %B
%high2 = shufflevector <8 x i16> %tmp2, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext2 = sext <4 x i16> %high2 to <4 x i32>
%res = sub <4 x i32> %tmp1, %ext2
ret <4 x i32> %res
}
define <2 x i64> @ssubw2_2d(<2 x i64>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: ssubw2_2d:
;CHECK: ssubw2.2d
%tmp1 = load <2 x i64>* %A
%tmp2 = load <4 x i32>* %B
%high2 = shufflevector <4 x i32> %tmp2, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext2 = sext <2 x i32> %high2 to <2 x i64>
%res = sub <2 x i64> %tmp1, %ext2
ret <2 x i64> %res
}
define <8 x i16> @usubw8h(<8 x i16>* %A, <8 x i8>* %B) nounwind {
;CHECK-LABEL: usubw8h:
;CHECK: usubw.8h
%tmp1 = load <8 x i16>* %A
%tmp2 = load <8 x i8>* %B
%tmp3 = zext <8 x i8> %tmp2 to <8 x i16>
%tmp4 = sub <8 x i16> %tmp1, %tmp3
ret <8 x i16> %tmp4
}
define <4 x i32> @usubw4s(<4 x i32>* %A, <4 x i16>* %B) nounwind {
;CHECK-LABEL: usubw4s:
;CHECK: usubw.4s
%tmp1 = load <4 x i32>* %A
%tmp2 = load <4 x i16>* %B
%tmp3 = zext <4 x i16> %tmp2 to <4 x i32>
%tmp4 = sub <4 x i32> %tmp1, %tmp3
ret <4 x i32> %tmp4
}
define <2 x i64> @usubw2d(<2 x i64>* %A, <2 x i32>* %B) nounwind {
;CHECK-LABEL: usubw2d:
;CHECK: usubw.2d
%tmp1 = load <2 x i64>* %A
%tmp2 = load <2 x i32>* %B
%tmp3 = zext <2 x i32> %tmp2 to <2 x i64>
%tmp4 = sub <2 x i64> %tmp1, %tmp3
ret <2 x i64> %tmp4
}
define <8 x i16> @usubw2_8h(<8 x i16>* %A, <16 x i8>* %B) nounwind {
;CHECK-LABEL: usubw2_8h:
;CHECK: usubw2.8h
%tmp1 = load <8 x i16>* %A
%tmp2 = load <16 x i8>* %B
%high2 = shufflevector <16 x i8> %tmp2, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
%ext2 = zext <8 x i8> %high2 to <8 x i16>
%res = sub <8 x i16> %tmp1, %ext2
ret <8 x i16> %res
}
define <4 x i32> @usubw2_4s(<4 x i32>* %A, <8 x i16>* %B) nounwind {
;CHECK-LABEL: usubw2_4s:
;CHECK: usubw2.4s
%tmp1 = load <4 x i32>* %A
%tmp2 = load <8 x i16>* %B
%high2 = shufflevector <8 x i16> %tmp2, <8 x i16> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
%ext2 = zext <4 x i16> %high2 to <4 x i32>
%res = sub <4 x i32> %tmp1, %ext2
ret <4 x i32> %res
}
define <2 x i64> @usubw2_2d(<2 x i64>* %A, <4 x i32>* %B) nounwind {
;CHECK-LABEL: usubw2_2d:
;CHECK: usubw2.2d
%tmp1 = load <2 x i64>* %A
%tmp2 = load <4 x i32>* %B
%high2 = shufflevector <4 x i32> %tmp2, <4 x i32> undef, <2 x i32> <i32 2, i32 3>
%ext2 = zext <2 x i32> %high2 to <2 x i64>
%res = sub <2 x i64> %tmp1, %ext2
ret <2 x i64> %res
}
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