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annotate test/Transforms/IndVarSimplify/eliminate-comparison.ll @ 52:c22698ecb2a9

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modified CreateIdentifierInfo and create new function which was named 'CreateUniqueIdentifierInfo'.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 Jan 2014 21:01:33 +0900
parents 95c75e76d11b
children afa8332a0e37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; RUN: opt -indvars -S < %s | FileCheck %s
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2
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3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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4
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5 @X = external global [0 x double]
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6
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7 ; Indvars should be able to simplify simple comparisons involving
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8 ; induction variables.
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9
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10 ; CHECK-LABEL: @foo(
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11 ; CHECK: %cond = and i1 %tobool.not, true
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12
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13 define void @foo(i64 %n, i32* nocapture %p) nounwind {
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14 entry:
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15 %cmp9 = icmp sgt i64 %n, 0
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parents:
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16 br i1 %cmp9, label %pre, label %return
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17
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18 pre:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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19 %t3 = load i32* %p
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20 %tobool.not = icmp ne i32 %t3, 0
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21 br label %loop
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22
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23 loop:
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24 %i = phi i64 [ 0, %pre ], [ %inc, %for.inc ]
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25 %cmp6 = icmp slt i64 %i, %n
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26 %cond = and i1 %tobool.not, %cmp6
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27 br i1 %cond, label %if.then, label %for.inc
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28
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29 if.then:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 %arrayidx = getelementptr [0 x double]* @X, i64 0, i64 %i
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31 store double 3.200000e+00, double* %arrayidx
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32 br label %for.inc
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33
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34 for.inc:
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35 %inc = add nsw i64 %i, 1
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36 %exitcond = icmp sge i64 %inc, %n
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37 br i1 %exitcond, label %return, label %loop
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38
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39 return:
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40 ret void
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41 }
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42
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43 ; Don't eliminate an icmp that's contributing to the loop exit test though.
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44
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45 ; CHECK-LABEL: @_ZNK4llvm5APInt3ultERKS0_(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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46 ; CHECK: %tmp99 = icmp sgt i32 %i, -1
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47
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48 define i32 @_ZNK4llvm5APInt3ultERKS0_(i32 %tmp2.i1, i64** %tmp65, i64** %tmp73, i64** %tmp82, i64** %tmp90) {
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49 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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50 br label %bb18
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51
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52 bb13:
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53 %tmp66 = load i64** %tmp65, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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54 %tmp68 = getelementptr inbounds i64* %tmp66, i32 %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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55 %tmp69 = load i64* %tmp68, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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56 %tmp74 = load i64** %tmp73, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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57 %tmp76 = getelementptr inbounds i64* %tmp74, i32 %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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58 %tmp77 = load i64* %tmp76, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 %tmp78 = icmp ugt i64 %tmp69, %tmp77
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60 br i1 %tmp78, label %bb20.loopexit, label %bb15
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61
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62 bb15:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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63 %tmp83 = load i64** %tmp82, align 4
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64 %tmp85 = getelementptr inbounds i64* %tmp83, i32 %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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65 %tmp86 = load i64* %tmp85, align 4
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66 %tmp91 = load i64** %tmp90, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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67 %tmp93 = getelementptr inbounds i64* %tmp91, i32 %i
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parents:
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68 %tmp94 = load i64* %tmp93, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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69 %tmp95 = icmp ult i64 %tmp86, %tmp94
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parents:
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70 br i1 %tmp95, label %bb20.loopexit, label %bb17
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71
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72 bb17:
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73 %tmp97 = add nsw i32 %i, -1
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74 br label %bb18
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75
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76 bb18:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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77 %i = phi i32 [ %tmp2.i1, %entry ], [ %tmp97, %bb17 ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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78 %tmp99 = icmp sgt i32 %i, -1
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79 br i1 %tmp99, label %bb13, label %bb20.loopexit
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80
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81 bb20.loopexit:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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82 %tmp.0.ph = phi i32 [ 0, %bb18 ], [ 1, %bb15 ], [ 0, %bb13 ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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83 ret i32 %tmp.0.ph
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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84 }
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85
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86 ; Indvars should eliminate the icmp here.
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87
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88 ; CHECK-LABEL: @func_10(
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89 ; CHECK-NOT: icmp
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90 ; CHECK: ret void
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91
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92 define void @func_10() nounwind {
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93 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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94 br label %loop
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95
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96 loop:
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97 %i = phi i32 [ %i.next, %loop ], [ 0, %entry ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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98 %t0 = icmp slt i32 %i, 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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99 %t1 = zext i1 %t0 to i32
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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100 %t2 = add i32 %t1, %i
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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101 %u3 = zext i32 %t2 to i64
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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102 store i64 %u3, i64* null
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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103 %i.next = add i32 %i, 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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104 br i1 undef, label %loop, label %return
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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105
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106 return:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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107 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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108 }
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parents:
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109
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110 ; PR14432
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parents:
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111 ; Indvars should not turn the second loop into an infinite one.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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112
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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113 ; CHECK-LABEL: @func_11(
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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114 ; CHECK: %tmp5 = icmp slt i32 %__key6.0, 10
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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115 ; CHECK-NOT: br i1 true, label %noassert68, label %unrolledend
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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116
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parents:
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117 define i32 @func_11() nounwind uwtable {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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118 entry:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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119 br label %forcond
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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120
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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121 forcond: ; preds = %noassert, %entry
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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122 %__key6.0 = phi i32 [ 2, %entry ], [ %tmp37, %noassert ]
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
123 %tmp5 = icmp slt i32 %__key6.0, 10
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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124 br i1 %tmp5, label %noassert, label %forcond38.preheader
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
125
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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126 forcond38.preheader: ; preds = %forcond
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parents:
diff changeset
127 br label %forcond38
95c75e76d11b LLVM 3.4
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parents:
diff changeset
128
95c75e76d11b LLVM 3.4
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parents:
diff changeset
129 noassert: ; preds = %forbody
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parents:
diff changeset
130 %tmp13 = sdiv i32 -32768, %__key6.0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
131 %tmp2936 = shl i32 %tmp13, 24
95c75e76d11b LLVM 3.4
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parents:
diff changeset
132 %sext23 = shl i32 %tmp13, 24
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
133 %tmp32 = icmp eq i32 %tmp2936, %sext23
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
134 %tmp37 = add i32 %__key6.0, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
135 br i1 %tmp32, label %forcond, label %assert33
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
136
95c75e76d11b LLVM 3.4
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parents:
diff changeset
137 assert33: ; preds = %noassert
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
138 tail call void @llvm.trap()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
139 unreachable
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
140
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
141 forcond38: ; preds = %noassert68, %forcond38.preheader
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
142 %__key8.0 = phi i32 [ %tmp81, %noassert68 ], [ 2, %forcond38.preheader ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
143 %tmp46 = icmp slt i32 %__key8.0, 10
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
144 br i1 %tmp46, label %noassert68, label %unrolledend
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
145
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
146 noassert68: ; preds = %forbody39
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
147 %tmp57 = sdiv i32 -32768, %__key8.0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
148 %sext34 = shl i32 %tmp57, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
149 %sext21 = shl i32 %tmp57, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
150 %tmp76 = icmp eq i32 %sext34, %sext21
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
151 %tmp81 = add i32 %__key8.0, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
152 br i1 %tmp76, label %forcond38, label %assert77
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
153
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
154 assert77: ; preds = %noassert68
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
155 tail call void @llvm.trap()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
156 unreachable
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
157
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
158 unrolledend: ; preds = %forcond38
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
159 ret i32 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
160 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
161
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
162 declare void @llvm.trap() noreturn nounwind
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
163
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
164 ; In this case the second loop only has a single iteration, fold the header away
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
165 ; CHECK-LABEL: @func_12(
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
166 ; CHECK: %tmp5 = icmp slt i32 %__key6.0, 10
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
167 ; CHECK: br i1 true, label %noassert68, label %unrolledend
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
168 define i32 @func_12() nounwind uwtable {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
169 entry:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
170 br label %forcond
95c75e76d11b LLVM 3.4
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parents:
diff changeset
171
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
172 forcond: ; preds = %noassert, %entry
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
173 %__key6.0 = phi i32 [ 2, %entry ], [ %tmp37, %noassert ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
174 %tmp5 = icmp slt i32 %__key6.0, 10
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
175 br i1 %tmp5, label %noassert, label %forcond38.preheader
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
176
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
177 forcond38.preheader: ; preds = %forcond
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
178 br label %forcond38
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
179
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
180 noassert: ; preds = %forbody
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
181 %tmp13 = sdiv i32 -32768, %__key6.0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
182 %tmp2936 = shl i32 %tmp13, 24
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
183 %sext23 = shl i32 %tmp13, 24
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
184 %tmp32 = icmp eq i32 %tmp2936, %sext23
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
185 %tmp37 = add i32 %__key6.0, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
186 br i1 %tmp32, label %forcond, label %assert33
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
187
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
188 assert33: ; preds = %noassert
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
189 tail call void @llvm.trap()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
190 unreachable
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
191
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
192 forcond38: ; preds = %noassert68, %forcond38.preheader
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
193 %__key8.0 = phi i32 [ %tmp81, %noassert68 ], [ 2, %forcond38.preheader ]
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
194 %tmp46 = icmp slt i32 %__key8.0, 10
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
195 br i1 %tmp46, label %noassert68, label %unrolledend
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
196
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
197 noassert68: ; preds = %forbody39
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
198 %tmp57 = sdiv i32 -32768, %__key8.0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
199 %sext34 = shl i32 %tmp57, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
200 %sext21 = shl i32 %tmp57, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
201 %tmp76 = icmp ne i32 %sext34, %sext21
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
202 %tmp81 = add i32 %__key8.0, 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
203 br i1 %tmp76, label %forcond38, label %assert77
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
204
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
205 assert77: ; preds = %noassert68
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
206 tail call void @llvm.trap()
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
207 unreachable
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
208
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
209 unrolledend: ; preds = %forcond38
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
210 ret i32 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
211 }