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annotate test/CodeGen/Thumb/ldr_ext.ll @ 77:54457678186b

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents 95c75e76d11b
children afa8332a0e37
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77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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1 ; RUN: llc -mtriple=thumb-eabi %s -o - | FileCheck %s -check-prefix=V5
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2 ; RUN: llc -mtriple=thumb-eabi -mattr=+v6 %s -o - | FileCheck %s -check-prefix=V6
0
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3
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4 ; rdar://7176514
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5
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6 define i32 @test1(i8* %t1) nounwind {
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7 ; V5: ldrb
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8
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9 ; V6: ldrb
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10 %tmp.u = load i8* %t1
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11 %tmp1.s = zext i8 %tmp.u to i32
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12 ret i32 %tmp1.s
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13 }
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14
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15 define i32 @test2(i16* %t1) nounwind {
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16 ; V5: ldrh
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17
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18 ; V6: ldrh
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19 %tmp.u = load i16* %t1
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20 %tmp1.s = zext i16 %tmp.u to i32
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21 ret i32 %tmp1.s
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22 }
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23
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24 define i32 @test3(i8* %t0) nounwind {
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25 ; V5: ldrb
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26 ; V5: lsls
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27 ; V5: asrs
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28
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29 ; V6: ldrb
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30 ; V6: sxtb
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31 %tmp.s = load i8* %t0
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32 %tmp1.s = sext i8 %tmp.s to i32
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33 ret i32 %tmp1.s
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34 }
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35
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36 define i32 @test4(i16* %t0) nounwind {
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37 ; V5: ldrh
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38 ; V5: lsls
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39 ; V5: asrs
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40
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41 ; V6: ldrh
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42 ; V6: sxth
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43 %tmp.s = load i16* %t0
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44 %tmp1.s = sext i16 %tmp.s to i32
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45 ret i32 %tmp1.s
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46 }
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47
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48 define i32 @test5() nounwind {
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49 ; V5: movs r0, #0
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50 ; V5: ldrsh
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51
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52 ; V6: movs r0, #0
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53 ; V6: ldrsh
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54 %tmp.s = load i16* null
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55 %tmp1.s = sext i16 %tmp.s to i32
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56 ret i32 %tmp1.s
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57 }