1 ; RUN: llc %s -o - -verify-machineinstrs | FileCheck %s 2 3 target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" 4 target triple = "thumbv7s-apple-ios8.0.0" 5 6 %struct.cells = type { i32, i32, %struct.cells* } 7 8 @reg_len = external global i32, align 4 9 10 ; The thumb2 size reduction pass commutes arguments to make the first src of an add the same as the dest. 11 ; It needs to also move the internal flag when commuting arguments. 12 13 ; CHECK-LABEL: @simulate 14 15 ; Function Attrs: nounwind optsize ssp 16 define i32 @simulate(i32 %iterations, %struct.cells* nocapture %present, double %prob, i8* nocapture readonly %structure) { 17 entry: 18 %0 = load i32, i32* @reg_len, align 4, !tbaa !3 19 %sub = add nsw i32 %0, -1 20 %div = sdiv i32 %sub, 31 21 %rem2 = srem i32 %sub, 31 22 %cmp35202 = icmp sgt i32 %rem2, 0 23 br label %for.cond3.preheader 24 25 for.cond3.preheader: ; preds = %if.end85, %entry 26 %call192 = tail call i32 @lrand48() #2 27 br label %for.cond6.preheader 28 29 for.cond34.preheader: ; preds = %for.inc30 30 br i1 %cmp35202, label %for.body37, label %for.end73 31 32 for.cond6.preheader: ; preds = %for.inc30, %for.cond3.preheader 33 %call197 = phi i32 [ %call, %for.inc30 ], [ %call192, %for.cond3.preheader ] 34 %i.0196 = phi i32 [ %inc31, %for.inc30 ], [ 0, %for.cond3.preheader ] 35 %temp.1195 = phi %struct.cells* [ %5, %for.inc30 ], [ %present, %for.cond3.preheader ] 36 %savefaulty.0194 = phi i32 [ %add12, %for.inc30 ], [ 0, %for.cond3.preheader ] 37 %savef_free.0193 = phi i32 [ %add11, %for.inc30 ], [ 0, %for.cond3.preheader ] 38 br label %for.body8 39 40 for.body8: ; preds = %for.body8, %for.cond6.preheader 41 %randv.0190 = phi i32 [ %call197, %for.cond6.preheader ], [ %shr, %for.body8 ] 42 %j.0189 = phi i32 [ 0, %for.cond6.preheader ], [ %inc, %for.body8 ] 43 %temp.2188 = phi %struct.cells* [ %temp.1195, %for.cond6.preheader ], [ %5, %for.body8 ] 44 %savefaulty.1187 = phi i32 [ %savefaulty.0194, %for.cond6.preheader ], [ %add12, %for.body8 ] 45 %savef_free.1186 = phi i32 [ %savef_free.0193, %for.cond6.preheader ], [ %add11, %for.body8 ] 46 %f_free = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 0 47 %1 = load i32, i32* %f_free, align 4, !tbaa !7 48 %add11 = add nsw i32 %1, %savef_free.1186 49 %faulty = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 1 50 %2 = load i32, i32* %faulty, align 4, !tbaa !10 51 %add12 = add nsw i32 %2, %savefaulty.1187 52 %next = getelementptr inbounds %struct.cells, %struct.cells* %temp.2188, i32 0, i32 2 53 %3 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11 54 %f_free13 = getelementptr inbounds %struct.cells, %struct.cells* %3, i32 0, i32 0 55 %4 = load i32, i32* %f_free13, align 4, !tbaa !7 56 %add14 = add nsw i32 %4, %randv.0190 57 %and = and i32 %add14, 1 58 store i32 %and, i32* %f_free, align 4, !tbaa !7 59 %call16 = tail call i32 @lrand48() #2 60 %rem17 = srem i32 %call16, 1000 61 %conv18 = sitofp i32 %rem17 to double 62 %div19 = fdiv double %conv18, 1.000000e+03 63 %cmp20 = fcmp olt double %div19, %prob 64 %xor = zext i1 %cmp20 to i32 65 %randv.1 = xor i32 %xor, %randv.0190 66 %5 = load %struct.cells*, %struct.cells** %next, align 4, !tbaa !11 67 %faulty25 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1 68 %6 = load i32, i32* %faulty25, align 4, !tbaa !10 69 %add26 = add nsw i32 %randv.1, %6 70 %and27 = and i32 %add26, 1 71 store i32 %and27, i32* %faulty, align 4, !tbaa !10 72 %shr = ashr i32 %randv.0190, 1 73 %inc = add nuw nsw i32 %j.0189, 1 74 %exitcond = icmp eq i32 %inc, 31 75 br i1 %exitcond, label %for.inc30, label %for.body8 76 77 for.inc30: ; preds = %for.body8 78 %inc31 = add nuw nsw i32 %i.0196, 1 79 %cmp4 = icmp slt i32 %inc31, %div 80 %call = tail call i32 @lrand48() #2 81 br i1 %cmp4, label %for.cond6.preheader, label %for.cond34.preheader 82 83 for.body37: ; preds = %for.body37, %for.cond34.preheader 84 %randv.2207 = phi i32 [ %shr70, %for.body37 ], [ %call, %for.cond34.preheader ] 85 %temp.3205 = phi %struct.cells* [ %9, %for.body37 ], [ %5, %for.cond34.preheader ] 86 %f_free45 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 0 87 %.pre220 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 1 88 %next50 = getelementptr inbounds %struct.cells, %struct.cells* %temp.3205, i32 0, i32 2 89 %7 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11 90 %f_free51 = getelementptr inbounds %struct.cells, %struct.cells* %7, i32 0, i32 0 91 %8 = load i32, i32* %f_free51, align 4, !tbaa !7 92 %add52 = add nsw i32 %8, %randv.2207 93 %and53 = and i32 %add52, 1 94 store i32 %and53, i32* %f_free45, align 4, !tbaa !7 95 %call55 = tail call i32 @lrand48() #2 96 %rem56 = srem i32 %call55, 1000 97 %conv57 = sitofp i32 %rem56 to double 98 %div58 = fdiv double %conv57, 1.000000e+03 99 %cmp59 = fcmp olt double %div58, %prob 100 %xor62 = zext i1 %cmp59 to i32 101 %randv.3 = xor i32 %xor62, %randv.2207 102 %9 = load %struct.cells*, %struct.cells** %next50, align 4, !tbaa !11 103 %faulty65 = getelementptr inbounds %struct.cells, %struct.cells* %9, i32 0, i32 1 104 %10 = load i32, i32* %faulty65, align 4, !tbaa !10 105 %add66 = add nsw i32 %randv.3, %10 106 %and67 = and i32 %add66, 1 107 store i32 %and67, i32* %.pre220, align 4, !tbaa !10 108 %shr70 = ashr i32 %randv.2207, 1 109 br label %for.body37 110 111 for.end73: ; preds = %for.cond34.preheader 112 %call74 = tail call i32 @lrand48() #2 113 %11 = load i32, i32* @reg_len, align 4, !tbaa !3 114 %sub75 = add nsw i32 %11, -1 115 %arrayidx76 = getelementptr inbounds i8, i8* %structure, i32 %sub75 116 %12 = load i8, i8* %arrayidx76, align 1, !tbaa !12 117 %cmp78 = icmp eq i8 %12, 49 118 %f_free81 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 0 119 br i1 %cmp78, label %if.then80, label %for.end73.if.end85_crit_edge 120 121 for.end73.if.end85_crit_edge: ; preds = %for.end73 122 %.pre222 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1 123 br label %if.end85 124 125 if.then80: ; preds = %for.end73 126 %13 = load i32, i32* %f_free81, align 4, !tbaa !7 127 %add82 = add nsw i32 %13, %add11 128 %faulty83 = getelementptr inbounds %struct.cells, %struct.cells* %5, i32 0, i32 1 129 %14 = load i32, i32* %faulty83, align 4, !tbaa !10 130 %add84 = add nsw i32 %14, %add12 131 br label %if.end85 132 133 if.end85: ; preds = %if.then80, %for.end73.if.end85_crit_edge 134 %faulty100.pre-phi = phi i32* [ %.pre222, %for.end73.if.end85_crit_edge ], [ %faulty83, %if.then80 ] 135 %savef_free.5 = phi i32 [ %add11, %for.end73.if.end85_crit_edge ], [ %add82, %if.then80 ] 136 %savefaulty.5 = phi i32 [ %add12, %for.end73.if.end85_crit_edge ], [ %add84, %if.then80 ] 137 %add86 = add nsw i32 %savef_free.5, %call74 138 %and87 = and i32 %add86, 1 139 store i32 %and87, i32* %f_free81, align 4, !tbaa !7 140 %call89 = tail call i32 @lrand48() #2 141 %rem90 = srem i32 %call89, 10000 142 %conv91 = sitofp i32 %rem90 to double 143 %div92 = fdiv double %conv91, 1.000000e+04 144 %cmp93 = fcmp olt double %div92, %prob 145 %xor96 = zext i1 %cmp93 to i32 146 %randv.4 = xor i32 %xor96, %call74 147 %add98 = add nsw i32 %randv.4, %savefaulty.5 148 %and99 = and i32 %add98, 1 149 store i32 %and99, i32* %faulty100.pre-phi, align 4, !tbaa !10 150 br label %for.cond3.preheader 151 } 152 153 ; Function Attrs: optsize 154 declare i32 @lrand48() 155 156 attributes #2 = { nounwind optsize } 157 158 !llvm.module.flags = !{!0, !1} 159 !llvm.ident = !{!2} 160 161 !0 = !{i32 1, !"wchar_size", i32 4} 162 !1 = !{i32 1, !"min_enum_size", i32 4} 163 !2 = !{!"clang version 3.7.0 (trunk 236243)"} 164 !3 = !{!4, !4, i64 0} 165 !4 = !{!"int", !5, i64 0} 166 !5 = !{!"omnipotent char", !6, i64 0} 167 !6 = !{!"Simple C/C++ TBAA"} 168 !7 = !{!8, !4, i64 0} 169 !8 = !{!"cells", !4, i64 0, !4, i64 4, !9, i64 8} 170 !9 = !{!"any pointer", !5, i64 0} 171 !10 = !{!8, !4, i64 4} 172 !11 = !{!8, !9, i64 8} 173 !12 = !{!5, !5, i64 0} 174
