1 ; RUN: opt < %s -scalar-evolution-max-arith-depth=0 -indvars -S | FileCheck %s 2 3 target datalayout = "e-m:e-i32:64-f80:128-n8:16:32:64-S128-ni:1" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; Check that it does not crash because SCEVAddRec's step is not an AddRec. 7 8 define void @pr35890(i32* %inc_ptr, i32 %a) { 9 10 ; CHECK-LABEL: @pr35890( 11 12 entry: 13 %inc = load i32, i32* %inc_ptr, !range !0 14 %ne.cond = icmp ne i32 %inc, 0 15 br i1 %ne.cond, label %loop, label %bail 16 17 loop: 18 %iv = phi i32 [ 0, %entry ], [ %iv.next, %backedge ] 19 %a.1 = add i32 %a, 1 20 %iv.next = add i32 %iv, %a.1 21 %iv.wide = zext i32 %iv to i64 22 %iv.square = mul i64 %iv.wide, %iv.wide 23 %iv.cube = mul i64 %iv.square, %iv.wide 24 %brcond = icmp slt i64 %iv.wide, %iv.cube 25 br i1 %brcond, label %if.true, label %if.false 26 27 if.true: 28 br label %backedge 29 30 if.false: 31 br label %backedge 32 33 backedge: 34 %loopcond = icmp slt i32 %iv, 200 35 br i1 %loopcond, label %loop, label %exit 36 37 exit: 38 ret void 39 40 bail: 41 ret void 42 } 43 44 !0 = !{i32 0, i32 100} 45
