1 ; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s 2 ; PR1533 3 4 @array = weak global [101 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=1] 5 6 ; CHECK: Loop %bb: backedge-taken count is 100 7 8 define void @loop(i32 %x) { 9 entry: 10 br label %bb 11 12 bb: ; preds = %bb, %entry 13 %i.01.0 = phi i32 [ 100, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] 14 %tmp1 = getelementptr [101 x i32]* @array, i32 0, i32 %i.01.0 ; <i32*> [#uses=1] 15 store i32 %x, i32* %tmp1 16 %tmp4 = add i32 %i.01.0, -1 ; <i32> [#uses=2] 17 %tmp7 = icmp sgt i32 %tmp4, -1 ; <i1> [#uses=1] 18 br i1 %tmp7, label %bb, label %return 19 20 return: ; preds = %bb 21 ret void 22 } 23
