1; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-max-iterations=0 2>&1 | FileCheck %s 2; PR2607 3 4define i32 @_Z1aj(i32 %j) nounwind { 5entry: 6 icmp sgt i32 0, %j ; <i1>:0 [#uses=1] 7 br i1 %0, label %bb.preheader, label %return 8 9bb.preheader: ; preds = %entry 10 br label %bb 11 12bb: ; preds = %bb, %bb.preheader 13 %i.01 = phi i32 [ %1, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=1] 14 add i32 %i.01, -1 ; <i32>:1 [#uses=3] 15 icmp sgt i32 %1, %j ; <i1>:2 [#uses=1] 16 br i1 %2, label %bb, label %return.loopexit 17 18return.loopexit: ; preds = %bb 19 br label %return 20 21return: ; preds = %return.loopexit, %entry 22 %i.0.lcssa = phi i32 [ 0, %entry ], [ %1, %return.loopexit ] ; <i32> [#uses=1] 23 ret i32 %i.0.lcssa 24} 25 26; CHECK: backedge-taken count is (-1 + (-1 * %j)) 27 28