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annotate test/CodeGen/AArch64/arm64-extract_subvector.ll @ 117:facf19d07cd9

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Wed, 24 Aug 2016 20:10:41 +0900
parents 54457678186b
children 1172e4bd9c6f
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54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -march=arm64 -aarch64-neon-syntax=apple < %s | FileCheck %s
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2
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3 ; Extract of an upper half of a vector is an "ext.16b v0, v0, v0, #8" insn.
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4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 define <8 x i8> @v8i8(<16 x i8> %a) nounwind {
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6 ; CHECK: v8i8
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7 ; CHECK: ext.16b v0, v0, v0, #8
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8 ; CHECK: ret
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9 %ret = shufflevector <16 x i8> %a, <16 x i8> %a, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
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10 ret <8 x i8> %ret
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11 }
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12
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13 define <4 x i16> @v4i16(<8 x i16> %a) nounwind {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 ; CHECK-LABEL: v4i16:
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15 ; CHECK: ext.16b v0, v0, v0, #8
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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16 ; CHECK: ret
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17 %ret = shufflevector <8 x i16> %a, <8 x i16> %a, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
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18 ret <4 x i16> %ret
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19 }
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20
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 define <2 x i32> @v2i32(<4 x i32> %a) nounwind {
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22 ; CHECK-LABEL: v2i32:
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23 ; CHECK: ext.16b v0, v0, v0, #8
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24 ; CHECK: ret
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25 %ret = shufflevector <4 x i32> %a, <4 x i32> %a, <2 x i32> <i32 2, i32 3>
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26 ret <2 x i32> %ret
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27 }
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28
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 define <1 x i64> @v1i64(<2 x i64> %a) nounwind {
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30 ; CHECK-LABEL: v1i64:
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31 ; CHECK: ext.16b v0, v0, v0, #8
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32 ; CHECK: ret
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33 %ret = shufflevector <2 x i64> %a, <2 x i64> %a, <1 x i32> <i32 1>
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34 ret <1 x i64> %ret
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35 }
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36
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37 define <2 x float> @v2f32(<4 x float> %a) nounwind {
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38 ; CHECK-LABEL: v2f32:
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39 ; CHECK: ext.16b v0, v0, v0, #8
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40 ; CHECK: ret
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41 %ret = shufflevector <4 x float> %a, <4 x float> %a, <2 x i32> <i32 2, i32 3>
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42 ret <2 x float> %ret
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43 }
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44
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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45 define <1 x double> @v1f64(<2 x double> %a) nounwind {
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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46 ; CHECK-LABEL: v1f64:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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47 ; CHECK: ext.16b v0, v0, v0, #8
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48 ; CHECK: ret
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49 %ret = shufflevector <2 x double> %a, <2 x double> %a, <1 x i32> <i32 1>
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50 ret <1 x double> %ret
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51 }