xref: /llvm-project/llvm/test/Analysis/ScalarEvolution/2008-07-19-WrappingIV.ll (revision 0d38f21e4ab7fe7cebe76a9d7c218ec54dba1e98)
1; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
2; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" -scalar-evolution-max-iterations=0 -scalar-evolution-classify-expressions=0 2>&1 | FileCheck %s
3; PR2088
4
5
6define void @fun() {
7; CHECK-LABEL: 'fun'
8; CHECK-NEXT:  Determining loop execution counts for: @fun
9; CHECK-NEXT:  Loop %loop: backedge-taken count is i8 113
10; CHECK-NEXT:  Loop %loop: constant max backedge-taken count is i8 113
11; CHECK-NEXT:  Loop %loop: symbolic max backedge-taken count is i8 113
12; CHECK-NEXT:  Loop %loop: Trip multiple is 114
13;
14entry:
15        br label %loop
16loop:
17        %i = phi i8 [ 0, %entry ], [ %i.next, %loop ]
18        %i.next = add i8 %i, 18
19        %cond = icmp ne i8 %i.next, 4
20        br i1 %cond, label %loop, label %exit
21exit:
22        ret void
23}
24