1 ; RUN: opt < %s -analyze -scalar-evolution \ 2 ; RUN: | grep {Loop %bb7.i: Unpredictable backedge-taken count\\.} 3 4 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" 5 6 %struct.complex = type { float, float } 7 %struct.element = type { i32, i32 } 8 %struct.node = type { %struct.node*, %struct.node*, i32 } 9 @seed = external global i64 ; <i64*> [#uses=0] 10 @_2E_str = external constant [18 x i8], align 1 ; <[18 x i8]*> [#uses=0] 11 @_2E_str1 = external constant [4 x i8], align 1 ; <[4 x i8]*> [#uses=0] 12 @value = external global float ; <float*> [#uses=0] 13 @fixed = external global float ; <float*> [#uses=0] 14 @floated = external global float ; <float*> [#uses=0] 15 @permarray = external global [11 x i32], align 32 ; <[11 x i32]*> [#uses=0] 16 @pctr = external global i32 ; <i32*> [#uses=0] 17 @tree = external global %struct.node* ; <%struct.node**> [#uses=0] 18 @stack = external global [4 x i32], align 16 ; <[4 x i32]*> [#uses=0] 19 @cellspace = external global [19 x %struct.element], align 32 ; <[19 x %struct.element]*> [#uses=0] 20 @freelist = external global i32 ; <i32*> [#uses=0] 21 @movesdone = external global i32 ; <i32*> [#uses=0] 22 @ima = external global [41 x [41 x i32]], align 32 ; <[41 x [41 x i32]]*> [#uses=0] 23 @imb = external global [41 x [41 x i32]], align 32 ; <[41 x [41 x i32]]*> [#uses=0] 24 @imr = external global [41 x [41 x i32]], align 32 ; <[41 x [41 x i32]]*> [#uses=0] 25 @rma = external global [41 x [41 x float]], align 32 ; <[41 x [41 x float]]*> [#uses=0] 26 @rmb = external global [41 x [41 x float]], align 32 ; <[41 x [41 x float]]*> [#uses=0] 27 @rmr = external global [41 x [41 x float]], align 32 ; <[41 x [41 x float]]*> [#uses=0] 28 @piececount = external global [4 x i32], align 16 ; <[4 x i32]*> [#uses=0] 29 @class = external global [13 x i32], align 32 ; <[13 x i32]*> [#uses=0] 30 @piecemax = external global [13 x i32], align 32 ; <[13 x i32]*> [#uses=0] 31 @puzzl = external global [512 x i32], align 32 ; <[512 x i32]*> [#uses=0] 32 @p = external global [13 x [512 x i32]], align 32 ; <[13 x [512 x i32]]*> [#uses=0] 33 @n = external global i32 ; <i32*> [#uses=0] 34 @kount = external global i32 ; <i32*> [#uses=0] 35 @sortlist = external global [5001 x i32], align 32 ; <[5001 x i32]*> [#uses=0] 36 @biggest = external global i32 ; <i32*> [#uses=0] 37 @littlest = external global i32 ; <i32*> [#uses=0] 38 @top = external global i32 ; <i32*> [#uses=0] 39 @z = external global [257 x %struct.complex], align 32 ; <[257 x %struct.complex]*> [#uses=0] 40 @w = external global [257 x %struct.complex], align 32 ; <[257 x %struct.complex]*> [#uses=0] 41 @e = external global [130 x %struct.complex], align 32 ; <[130 x %struct.complex]*> [#uses=0] 42 @zr = external global float ; <float*> [#uses=0] 43 @zi = external global float ; <float*> [#uses=0] 44 45 declare void @Initrand() nounwind 46 47 declare i32 @Rand() nounwind 48 49 declare void @Try(i32, i32*, i32*, i32*, i32*, i32*) nounwind 50 51 declare i32 @puts(i8* nocapture) nounwind 52 53 declare void @Queens(i32) nounwind 54 55 declare i32 @printf(i8* nocapture, ...) nounwind 56 57 declare i32 @main() nounwind 58 59 declare void @Doit() nounwind 60 61 declare void @Doit_bb7([15 x i32]*, [17 x i32]*, [9 x i32]*) nounwind 62 63 define void @Doit_bb7_2E_i([9 x i32]* %x1, [15 x i32]* %c, [17 x i32]* %b, [9 x i32]* %a, i32* %q, i32* %x1.sub, i32* %b9, i32* %a10, i32* %c11) nounwind { 64 newFuncRoot: 65 br label %bb7.i 66 67 Try.exit.exitStub: ; preds = %bb7.i 68 ret void 69 70 bb.i: ; preds = %bb7.i 71 %tmp = add i32 %j.0.i, 1 ; <i32> [#uses=5] 72 store i32 0, i32* %q, align 4 73 %tmp1 = sext i32 %tmp to i64 ; <i64> [#uses=1] 74 %tmp2 = getelementptr [9 x i32]* %a, i64 0, i64 %tmp1 ; <i32*> [#uses=1] 75 %tmp3 = load i32* %tmp2, align 4 ; <i32> [#uses=1] 76 %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] 77 br i1 %tmp4, label %bb.i.bb7.i.backedge_crit_edge, label %bb1.i 78 79 bb1.i: ; preds = %bb.i 80 %tmp5 = add i32 %j.0.i, 2 ; <i32> [#uses=1] 81 %tmp6 = sext i32 %tmp5 to i64 ; <i64> [#uses=1] 82 %tmp7 = getelementptr [17 x i32]* %b, i64 0, i64 %tmp6 ; <i32*> [#uses=1] 83 %tmp8 = load i32* %tmp7, align 4 ; <i32> [#uses=1] 84 %tmp9 = icmp eq i32 %tmp8, 0 ; <i1> [#uses=1] 85 br i1 %tmp9, label %bb1.i.bb7.i.backedge_crit_edge, label %bb2.i 86 87 bb2.i: ; preds = %bb1.i 88 %tmp10 = sub i32 7, %j.0.i ; <i32> [#uses=1] 89 %tmp11 = sext i32 %tmp10 to i64 ; <i64> [#uses=1] 90 %tmp12 = getelementptr [15 x i32]* %c, i64 0, i64 %tmp11 ; <i32*> [#uses=1] 91 %tmp13 = load i32* %tmp12, align 4 ; <i32> [#uses=1] 92 %tmp14 = icmp eq i32 %tmp13, 0 ; <i1> [#uses=1] 93 br i1 %tmp14, label %bb2.i.bb7.i.backedge_crit_edge, label %bb3.i 94 95 bb3.i: ; preds = %bb2.i 96 %tmp15 = getelementptr [9 x i32]* %x1, i64 0, i64 1 ; <i32*> [#uses=1] 97 store i32 %tmp, i32* %tmp15, align 4 98 %tmp16 = sext i32 %tmp to i64 ; <i64> [#uses=1] 99 %tmp17 = getelementptr [9 x i32]* %a, i64 0, i64 %tmp16 ; <i32*> [#uses=1] 100 store i32 0, i32* %tmp17, align 4 101 %tmp18 = add i32 %j.0.i, 2 ; <i32> [#uses=1] 102 %tmp19 = sext i32 %tmp18 to i64 ; <i64> [#uses=1] 103 %tmp20 = getelementptr [17 x i32]* %b, i64 0, i64 %tmp19 ; <i32*> [#uses=1] 104 store i32 0, i32* %tmp20, align 4 105 %tmp21 = sub i32 7, %j.0.i ; <i32> [#uses=1] 106 %tmp22 = sext i32 %tmp21 to i64 ; <i64> [#uses=1] 107 %tmp23 = getelementptr [15 x i32]* %c, i64 0, i64 %tmp22 ; <i32*> [#uses=1] 108 store i32 0, i32* %tmp23, align 4 109 call void @Try(i32 2, i32* %q, i32* %b9, i32* %a10, i32* %c11, i32* %x1.sub) nounwind 110 %tmp24 = load i32* %q, align 4 ; <i32> [#uses=1] 111 %tmp25 = icmp eq i32 %tmp24, 0 ; <i1> [#uses=1] 112 br i1 %tmp25, label %bb5.i, label %bb3.i.bb7.i.backedge_crit_edge 113 114 bb5.i: ; preds = %bb3.i 115 %tmp26 = sext i32 %tmp to i64 ; <i64> [#uses=1] 116 %tmp27 = getelementptr [9 x i32]* %a, i64 0, i64 %tmp26 ; <i32*> [#uses=1] 117 store i32 1, i32* %tmp27, align 4 118 %tmp28 = add i32 %j.0.i, 2 ; <i32> [#uses=1] 119 %tmp29 = sext i32 %tmp28 to i64 ; <i64> [#uses=1] 120 %tmp30 = getelementptr [17 x i32]* %b, i64 0, i64 %tmp29 ; <i32*> [#uses=1] 121 store i32 1, i32* %tmp30, align 4 122 %tmp31 = sub i32 7, %j.0.i ; <i32> [#uses=1] 123 %tmp32 = sext i32 %tmp31 to i64 ; <i64> [#uses=1] 124 %tmp33 = getelementptr [15 x i32]* %c, i64 0, i64 %tmp32 ; <i32*> [#uses=1] 125 store i32 1, i32* %tmp33, align 4 126 br label %bb7.i.backedge 127 128 bb7.i.backedge: ; preds = %bb3.i.bb7.i.backedge_crit_edge, %bb2.i.bb7.i.backedge_crit_edge, %bb1.i.bb7.i.backedge_crit_edge, %bb.i.bb7.i.backedge_crit_edge, %bb5.i 129 br label %bb7.i 130 131 bb7.i: ; preds = %bb7.i.backedge, %newFuncRoot 132 %j.0.i = phi i32 [ 0, %newFuncRoot ], [ %tmp, %bb7.i.backedge ] ; <i32> [#uses=8] 133 %tmp34 = load i32* %q, align 4 ; <i32> [#uses=1] 134 %tmp35 = icmp eq i32 %tmp34, 0 ; <i1> [#uses=1] 135 %tmp36 = icmp ne i32 %j.0.i, 8 ; <i1> [#uses=1] 136 %tmp37 = and i1 %tmp35, %tmp36 ; <i1> [#uses=1] 137 br i1 %tmp37, label %bb.i, label %Try.exit.exitStub 138 139 bb.i.bb7.i.backedge_crit_edge: ; preds = %bb.i 140 br label %bb7.i.backedge 141 142 bb1.i.bb7.i.backedge_crit_edge: ; preds = %bb1.i 143 br label %bb7.i.backedge 144 145 bb2.i.bb7.i.backedge_crit_edge: ; preds = %bb2.i 146 br label %bb7.i.backedge 147 148 bb3.i.bb7.i.backedge_crit_edge: ; preds = %bb3.i 149 br label %bb7.i.backedge 150 } 151
