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136 lines
5.1 KiB
LLVM
136 lines
5.1 KiB
LLVM
; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
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define <8 x i8> @test_vextd(<8 x i8>* %A, <8 x i8>* %B) nounwind {
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;CHECK: test_vextd:
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;CHECK: vext
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%tmp1 = load <8 x i8>* %A
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%tmp2 = load <8 x i8>* %B
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%tmp3 = shufflevector <8 x i8> %tmp1, <8 x i8> %tmp2, <8 x i32> <i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10>
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ret <8 x i8> %tmp3
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}
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define <8 x i8> @test_vextRd(<8 x i8>* %A, <8 x i8>* %B) nounwind {
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;CHECK: test_vextRd:
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;CHECK: vext
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%tmp1 = load <8 x i8>* %A
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%tmp2 = load <8 x i8>* %B
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%tmp3 = shufflevector <8 x i8> %tmp1, <8 x i8> %tmp2, <8 x i32> <i32 13, i32 14, i32 15, i32 0, i32 1, i32 2, i32 3, i32 4>
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ret <8 x i8> %tmp3
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}
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define <16 x i8> @test_vextq(<16 x i8>* %A, <16 x i8>* %B) nounwind {
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;CHECK: test_vextq:
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;CHECK: vext
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%tmp1 = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%tmp3 = shufflevector <16 x i8> %tmp1, <16 x i8> %tmp2, <16 x i32> <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, i32 16, i32 17, i32 18>
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ret <16 x i8> %tmp3
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}
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define <16 x i8> @test_vextRq(<16 x i8>* %A, <16 x i8>* %B) nounwind {
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;CHECK: test_vextRq:
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;CHECK: vext
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%tmp1 = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%tmp3 = shufflevector <16 x i8> %tmp1, <16 x i8> %tmp2, <16 x i32> <i32 23, i32 24, i32 25, i32 26, i32 27, i32 28, i32 29, i32 30, i32 31, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6>
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ret <16 x i8> %tmp3
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}
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define <4 x i16> @test_vextd16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
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;CHECK: test_vextd16:
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;CHECK: vext
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%tmp1 = load <4 x i16>* %A
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%tmp2 = load <4 x i16>* %B
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%tmp3 = shufflevector <4 x i16> %tmp1, <4 x i16> %tmp2, <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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ret <4 x i16> %tmp3
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}
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define <4 x i32> @test_vextq32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
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;CHECK: test_vextq32:
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;CHECK: vext
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%tmp1 = load <4 x i32>* %A
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%tmp2 = load <4 x i32>* %B
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%tmp3 = shufflevector <4 x i32> %tmp1, <4 x i32> %tmp2, <4 x i32> <i32 3, i32 4, i32 5, i32 6>
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ret <4 x i32> %tmp3
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}
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; Undef shuffle indices should not prevent matching to VEXT:
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define <8 x i8> @test_vextd_undef(<8 x i8>* %A, <8 x i8>* %B) nounwind {
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;CHECK: test_vextd_undef:
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;CHECK: vext
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%tmp1 = load <8 x i8>* %A
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%tmp2 = load <8 x i8>* %B
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%tmp3 = shufflevector <8 x i8> %tmp1, <8 x i8> %tmp2, <8 x i32> <i32 3, i32 undef, i32 undef, i32 6, i32 7, i32 8, i32 9, i32 10>
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ret <8 x i8> %tmp3
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}
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define <16 x i8> @test_vextRq_undef(<16 x i8>* %A, <16 x i8>* %B) nounwind {
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;CHECK: test_vextRq_undef:
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;CHECK: vext
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%tmp1 = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%tmp3 = shufflevector <16 x i8> %tmp1, <16 x i8> %tmp2, <16 x i32> <i32 23, i32 24, i32 25, i32 26, i32 undef, i32 undef, i32 29, i32 30, i32 31, i32 0, i32 1, i32 2, i32 3, i32 4, i32 undef, i32 6>
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ret <16 x i8> %tmp3
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}
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; Tests for ReconstructShuffle function. Indices have to be carefully
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; chosen to reach lowering phase as a BUILD_VECTOR.
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; One vector needs vext, the other can be handled by extract_subvector
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; Also checks interleaving of sources is handled correctly.
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; Essence: a vext is used on %A and something saner than stack load/store for final result.
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define <4 x i16> @test_interleaved(<8 x i16>* %A, <8 x i16>* %B) nounwind {
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;CHECK: test_interleaved:
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;CHECK: vext.16
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;CHECK-NOT: vext.16
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;CHECK: vzip.16
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%tmp1 = load <8 x i16>* %A
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%tmp2 = load <8 x i16>* %B
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%tmp3 = shufflevector <8 x i16> %tmp1, <8 x i16> %tmp2, <4 x i32> <i32 3, i32 8, i32 5, i32 9>
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ret <4 x i16> %tmp3
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}
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; An undef in the shuffle list should still be optimizable
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define <4 x i16> @test_undef(<8 x i16>* %A, <8 x i16>* %B) nounwind {
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;CHECK: test_undef:
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;CHECK: vzip.16
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%tmp1 = load <8 x i16>* %A
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%tmp2 = load <8 x i16>* %B
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%tmp3 = shufflevector <8 x i16> %tmp1, <8 x i16> %tmp2, <4 x i32> <i32 undef, i32 8, i32 5, i32 9>
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ret <4 x i16> %tmp3
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}
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; We should ignore a build_vector with more than two sources.
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; Use illegal <32 x i16> type to produce such a shuffle after legalizing types.
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; Try to look for fallback to stack expansion.
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define <4 x i16> @test_multisource(<32 x i16>* %B) nounwind {
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;CHECK: test_multisource:
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;CHECK: vst1.16
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%tmp1 = load <32 x i16>* %B
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%tmp2 = shufflevector <32 x i16> %tmp1, <32 x i16> undef, <4 x i32> <i32 0, i32 8, i32 16, i32 24>
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ret <4 x i16> %tmp2
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}
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; We don't handle shuffles using more than half of a 128-bit vector.
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; Again, test for fallback to stack expansion
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define <4 x i16> @test_largespan(<8 x i16>* %B) nounwind {
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;CHECK: test_largespan:
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;CHECK: vst1.16
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%tmp1 = load <8 x i16>* %B
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%tmp2 = shufflevector <8 x i16> %tmp1, <8 x i16> undef, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
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ret <4 x i16> %tmp2
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}
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; The actual shuffle code only handles some cases, make sure we check
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; this rather than blindly emitting a VECTOR_SHUFFLE (infinite
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; lowering loop can result otherwise).
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define <8 x i8> @test_illegal(<16 x i8>* %A, <16 x i8>* %B) nounwind {
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;CHECK: test_illegal:
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;CHECK: vst1.8
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%tmp1 = load <16 x i8>* %A
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%tmp2 = load <16 x i8>* %B
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%tmp3 = shufflevector <16 x i8> %tmp1, <16 x i8> %tmp2, <8 x i32> <i32 0, i32 7, i32 5, i32 25, i32 3, i32 2, i32 2, i32 26>
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ret <8 x i8> %tmp3
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}
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