xref: /llvm-project/polly/test/ScheduleOptimizer/ManualOptimization/disable_nonforced.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly '-passes=print<polly-opt-isl>' -disable-output < %s | FileCheck %s -match-full-lines
2;
3; Check that the disable_nonforced metadata is honored; optimization
4; heuristics/rescheduling must not be applied.
5;
6define void @func(i32 %n, ptr noalias nonnull %A) {
7entry:
8  br label %for
9
10for:
11  %j = phi i32 [0, %entry], [%j.inc, %inc]
12  %j.cmp = icmp slt i32 %j, %n
13  br i1 %j.cmp, label %inner.for, label %exit
14
15
16    inner.for:
17      %i = phi i32 [0, %for], [%i.inc, %inner.inc]
18      br label %bodyA
19
20
21        bodyA:
22          %mul = mul nuw nsw i32 %j, 128
23          %add = add nuw nsw i32 %mul, %i
24          %A_idx = getelementptr inbounds double, ptr %A, i32 %add
25          store double 0.0, ptr %A_idx
26          br label %inner.inc
27
28
29    inner.inc:
30      %i.inc = add nuw nsw i32 %i, 1
31      %i.cmp = icmp slt i32 %i.inc, 128
32      br i1 %i.cmp, label %inner.for, label %inner.exit
33
34    inner.exit:
35       br label %inc, !llvm.loop !2
36
37
38inc:
39  %j.inc = add nuw nsw i32 %j, 1
40  br label %for, !llvm.loop !2
41
42exit:
43  br label %return
44
45return:
46  ret void
47}
48
49
50!2 = distinct !{!2, !3}
51!3 = !{!"llvm.loop.disable_nonforced"}
52
53
54; n/a indicates no new schedule was computed
55;
56; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
57; CHECK-NEXT:  Calculated schedule:
58; CHECK-NEXT:    n/a
59