llvm/test/Analysis/ScalarEvolution/trip-count2.ll

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution  -scalar-evolution-classify-expressions=0  | FileCheck %s
; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>"  -scalar-evolution-classify-expressions=0  2>&1 | FileCheck %s

@A = weak global [1000 x i32] zeroinitializer, align 32

define void @PR1101(i32 %N) {
; CHECK-LABEL: 'PR1101'
; CHECK-NEXT:  Determining loop execution counts for: @PR1101
; CHECK-NEXT:  Loop %bb3: backedge-taken count is 4
; CHECK-NEXT:  Loop %bb3: max backedge-taken count is 4
; CHECK-NEXT:  Loop %bb3: Predicated backedge-taken count is 4
; CHECK-NEXT:   Predicates:
; CHECK:       Loop %bb3: Trip multiple is 5
;
entry:
  br label %bb3

bb:             ; preds = %bb3
  %tmp = getelementptr [1000 x i32], [1000 x i32]* @A, i32 0, i32 %i.0          ; <i32*> [#uses=1]
  store i32 123, i32* %tmp
  %tmp4 = mul i32 %i.0, 4         ; <i32> [#uses=1]
  %tmp5 = or i32 %tmp4, 1
  %tmp61 = xor i32 %tmp5, -2147483648
  %tmp6 = trunc i32 %tmp61 to i16
  %tmp71 = shl i16 %tmp6, 2
  %tmp7 = zext i16 %tmp71 to i32
  %tmp2 = add i32 %tmp7, %i.0
  br label %bb3

bb3:            ; preds = %bb, %entry
  %i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ]            ; <i32> [#uses=3]
  %tmp3 = icmp sle i32 %i.0, 9999          ; <i1> [#uses=1]
  br i1 %tmp3, label %bb, label %bb5

bb5:            ; preds = %bb3
  br label %return

return:         ; preds = %bb5
  ret void
}