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annotate test/CodeGen/ARM/memcpy-ldm-stm.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents afa8332a0e37
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
95
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | \
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV6
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3 ; RUN: llc -mtriple=thumbv6m-eabi -O=0 -verify-machineinstrs %s -o - | \
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4 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV6
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5 ; RUN: llc -mtriple=thumbv7a-eabi -mattr=-neon -verify-machineinstrs %s -o - | \
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6 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV7
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7 ; RUN: llc -mtriple=armv7a-eabi -mattr=-neon -verify-machineinstrs %s -o - | \
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8 ; RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECKV7
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9
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10 @d = external global [64 x i32]
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11 @s = external global [64 x i32]
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12
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13 ; Function Attrs: nounwind
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14 define void @t1() #0 {
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15 entry:
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16 ; CHECK-LABEL: t1:
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17 ; CHECKV6: ldr [[LB:r[0-7]]],
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18 ; CHECKV6-NEXT: ldr [[SB:r[0-7]]],
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19 ; We use '[rl0-9]+' to allow 'r0'..'r12', 'lr'
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20 ; CHECKV7: movt [[LB:[rl0-9]+]], :upper16:d
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21 ; CHECKV7-NEXT: movt [[SB:[rl0-9]+]], :upper16:s
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22 ; CHECK-NEXT: ldm{{(\.w)?}} [[LB]]!,
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23 ; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!,
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24 ; Think of the monstrosity '{{\[}}[[LB]]]' as '[ [[LB]] ]' without the spaces.
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25 ; CHECK-NEXT: ldrb{{(\.w)?}} {{.*}}, {{\[}}[[LB]]]
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26 ; CHECK-NEXT: strb{{(\.w)?}} {{.*}}, {{\[}}[[SB]]]
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27 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 17, i32 4, i1 false)
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28 ret void
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29 }
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30
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31 ; Function Attrs: nounwind
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32 define void @t2() #0 {
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33 entry:
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34 ; CHECK-LABEL: t2:
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35 ; CHECKV6: ldr [[LB:r[0-7]]],
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36 ; CHECKV6-NEXT: ldr [[SB:r[0-7]]],
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37 ; CHECKV7: movt [[LB:[rl0-9]+]], :upper16:d
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38 ; CHECKV7-NEXT: movt [[SB:[rl0-9]+]], :upper16:s
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39 ; CHECK-NEXT: ldm{{(\.w)?}} [[LB]]!,
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40 ; CHECK-NEXT: stm{{(\.w)?}} [[SB]]!,
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41 ; CHECK-NEXT: ldrh{{(\.w)?}} {{.*}}, {{\[}}[[LB]]]
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42 ; CHECK-NEXT: ldrb{{(\.w)?}} {{.*}}, {{\[}}[[LB]], #2]
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43 ; CHECK-NEXT: strb{{(\.w)?}} {{.*}}, {{\[}}[[SB]], #2]
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44 ; CHECK-NEXT: strh{{(\.w)?}} {{.*}}, {{\[}}[[SB]]]
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45 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([64 x i32]* @s to i8*), i8* bitcast ([64 x i32]* @d to i8*), i32 15, i32 4, i1 false)
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46 ret void
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47 }
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48
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49 ; PR23768
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50 %struct.T = type { i8, i64, i8 }
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51
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52 @copy = external global %struct.T, align 8
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53 @etest = external global %struct.T, align 8
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54
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55 define void @t3() {
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56 call void @llvm.memcpy.p0i8.p0i8.i32(
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57 i8* getelementptr inbounds (%struct.T, %struct.T* @copy, i32 0, i32 0),
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58 i8* getelementptr inbounds (%struct.T, %struct.T* @etest, i32 0, i32 0),
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59 i32 24, i32 8, i1 false)
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60 call void @llvm.memcpy.p0i8.p0i8.i32(
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61 i8* getelementptr inbounds (%struct.T, %struct.T* @copy, i32 0, i32 0),
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62 i8* getelementptr inbounds (%struct.T, %struct.T* @etest, i32 0, i32 0),
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63 i32 24, i32 8, i1 false)
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64 ret void
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65 }
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66
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67 %struct.S = type { [12 x i32] }
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68
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69 ; CHECK-LABEL: test3
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70 define void @test3(%struct.S* %d, %struct.S* %s) #0 {
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71 %1 = bitcast %struct.S* %d to i8*
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72 %2 = bitcast %struct.S* %s to i8*
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73 tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %2, i32 48, i32 4, i1 false)
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74 ; 3 ldm/stm pairs in v6; 2 in v7
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75 ; CHECK: ldm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST1:{.*}]]
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76 ; CHECK: stm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST1]]
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77 ; CHECK: ldm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST2:{.*}]]
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78 ; CHECK: stm{{(\.w)?}} {{[rl0-9]+!?}}, [[REGLIST2]]
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79 ; CHECKV6: ldm {{r[0-7]!?}}, [[REGLIST3:{.*}]]
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80 ; CHECKV6: stm {{r[0-7]!?}}, [[REGLIST3]]
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81 ; CHECKV7-NOT: ldm
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82 ; CHECKV7-NOT: stm
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83 %arrayidx = getelementptr inbounds %struct.S, %struct.S* %s, i32 0, i32 0, i32 1
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84 tail call void @g(i32* %arrayidx) #3
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85 ret void
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86 }
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87
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88 declare void @g(i32*)
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89
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90 ; Set "no-frame-pointer-elim" to increase register pressure
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91 attributes #0 = { "no-frame-pointer-elim"="true" }
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92
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93 ; Function Attrs: nounwind
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94 declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1