xref: /llvm-project/llvm/test/Other/loop-deletion-printer.ll (revision 6144fc2da1b87dc64ff887d73b60f7708f5cb0a4)
1; Make sure that Loop which was invalidated by loop-deletion
2; does not lead to problems for -print-after-all and is just skipped.
3;
4; RUN: opt < %s -disable-output \
5; RUN:     -passes=loop-instsimplify -print-after-all  2>&1 | FileCheck %s -check-prefix=SIMPLIFY
6; RUN: opt < %s -disable-output \
7; RUN:     -passes=loop-deletion,loop-instsimplify -print-after-all  2>&1 | FileCheck %s -check-prefix=DELETED
8; RUN: opt < %s -disable-output \
9; RUN:     -passes=loop-deletion,loop-instsimplify -print-after-all -print-module-scope  2>&1 | FileCheck %s -check-prefix=DELETED
10;
11; SIMPLIFY: IR Dump {{.*}} LoopInstSimplifyPass
12; DELETED: IR Dump {{.*}}LoopDeletionPass {{.*}}(invalidated)
13; DELETED-NOT: IR Dump {{.*}}LoopInstSimplifyPass
14
15define void @deleteme() {
16entry:
17  br label %loop
18loop:
19  %iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
20  %iv.next = add i32 %iv, 1
21  %check = icmp ult i32 %iv.next, 3
22  br i1 %check, label %loop, label %exit
23exit:
24  ret void
25}
26
27