1 ; RUN: opt < %s -loop-reduce -S 2 ; PR11950: isHighCostExpansion crashes on ConstExpr 3 ; 4 ; The crash happened during IVChain analysis (CollectChains). We don't 5 ; really care how LSR decides to transform this loop, so we don't 6 ; check it. As long as the analysis doesn't crash we're ok. 7 target datalayout = "e-p:64:64:64-n32:64" 8 9 %struct.this_structure_s.0.5 = type { [6144 x [8 x i32]], [6144 x [8 x i32]], [6147 x [4 x i32]], [8 x i32], [2 x i8*], [2 x i8*], [6144 x i8], [6144 x i32], [6144 x i32], [4 x [4 x i8]] } 10 11 define internal fastcc void @someFunction(%struct.this_structure_s.0.5* nocapture %scratch, i32 %stage, i32 %cbSize) nounwind { 12 entry: 13 %0 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 4, i32 %stage 14 %1 = load i8** %0, align 4 15 %2 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 5, i32 %stage 16 %3 = load i8** %2, align 4 17 %4 = getelementptr inbounds %struct.this_structure_s.0.5* %scratch, i32 0, i32 2, i32 0, i32 0 18 %tmp11 = shl i32 %stage, 1 19 %tmp1325 = or i32 %tmp11, 1 20 br label %__label_D_1608 21 22 __label_D_1608: ; preds = %__label_D_1608, %entry 23 %i.12 = phi i32 [ 0, %entry ], [ %10, %__label_D_1608 ] 24 %tmp = shl i32 %i.12, 2 25 %lvar_g.13 = getelementptr i32* %4, i32 %tmp 26 %tmp626 = or i32 %tmp, 1 27 %scevgep = getelementptr i32* %4, i32 %tmp626 28 %tmp727 = or i32 %tmp, 2 29 %scevgep8 = getelementptr i32* %4, i32 %tmp727 30 %tmp928 = or i32 %tmp, 3 31 %scevgep10 = getelementptr i32* %4, i32 %tmp928 32 %scevgep12 = getelementptr %struct.this_structure_s.0.5* %scratch, i32 0, i32 9, i32 %tmp11, i32 %i.12 33 %scevgep14 = getelementptr %struct.this_structure_s.0.5* %scratch, i32 0, i32 9, i32 %tmp1325, i32 %i.12 34 %5 = load i8* %scevgep12, align 1 35 %6 = sext i8 %5 to i32 36 %7 = load i8* %scevgep14, align 1 37 %8 = sext i8 %7 to i32 38 store i32 0, i32* %lvar_g.13, align 4 39 store i32 %8, i32* %scevgep, align 4 40 store i32 %6, i32* %scevgep8, align 4 41 %9 = add nsw i32 %8, %6 42 store i32 %9, i32* %scevgep10, align 4 43 %10 = add nsw i32 %i.12, 1 44 %exitcond = icmp eq i32 %10, 3 45 br i1 %exitcond, label %return, label %__label_D_1608 46 47 return: ; preds = %__label_D_1608 48 ret void 49 } 50
