1; RUN: opt -loop-reduce %s -S -o - | FileCheck %s 2target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S32" 3target triple = "i686-pc-win32" 4 5; <rdar://problem/14199725> Assertion failed: (CurScaleCost >= 0 && "Legal addressing mode has an illegal cost!") 6; CHECK-LABEL: @scalingFactorCrash( 7define void @scalingFactorCrash() { 8 br i1 undef, label %1, label %24 9 10; <label>:1 ; preds = %0 11 br i1 undef, label %2, label %24 12 13; <label>:2 ; preds = %1 14 br i1 undef, label %3, label %24 15 16; <label>:3 ; preds = %2 17 br i1 undef, label %4, label %24 18 19; <label>:4 ; preds = %3 20 br i1 undef, label %24, label %6 21 22; <label>:5 ; preds = %6 23 br i1 undef, label %24, label %7 24 25; <label>:6 ; preds = %6, %4 26 br i1 undef, label %6, label %5 27 28; <label>:7 ; preds = %9, %5 29 br label %8 30 31; <label>:8 ; preds = %8, %7 32 br i1 undef, label %9, label %8 33 34; <label>:9 ; preds = %8 35 br i1 undef, label %7, label %10 36 37; <label>:10 ; preds = %9 38 br i1 undef, label %24, label %11 39 40; <label>:11 ; preds = %10 41 br i1 undef, label %15, label %13 42 43; <label>:12 ; preds = %14 44 br label %15 45 46; <label>:13 ; preds = %11 47 br label %14 48 49; <label>:14 ; preds = %14, %13 50 br i1 undef, label %14, label %12 51 52; <label>:15 ; preds = %12, %11 53 br i1 undef, label %16, label %24 54 55; <label>:16 ; preds = %16, %15 56 %17 = phi i32 [ %21, %16 ], [ undef, %15 ] 57 %18 = sub i32 %17, 1623127498 58 %19 = getelementptr inbounds i32, i32* undef, i32 %18 59 store i32 undef, i32* %19, align 4 60 %20 = add i32 %17, 1623127499 61 %21 = add i32 %20, -1623127498 62 %22 = add i32 %21, -542963121 63 %23 = icmp ult i32 %22, undef 64 br i1 undef, label %16, label %24 65 66; <label>:24 ; preds = %16, %15, %10, %5, %4, %3, %2, %1, %0 67 ret void 68} 69