xref: /llvm-project/polly/test/ScheduleOptimizer/ManualOptimization/unroll_heuristic.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly -polly-pragma-based-opts=1 '-passes=print<polly-opt-isl>' -disable-output < %s | FileCheck %s --match-full-lines
2; RUN: opt %loadNPMPolly -polly-pragma-based-opts=0 '-passes=print<polly-opt-isl>' -disable-output < %s | FileCheck %s --match-full-lines
3;
4; Unrolling with heuristic factor.
5; Currently not supported and expected to be handled by LLVM's unroll pass.
6;
7define void @func(i32 %n, ptr noalias nonnull %A) {
8entry:
9  br label %for
10
11for:
12  %j = phi i32 [0, %entry], [%j.inc, %inc]
13  %j.cmp = icmp slt i32 %j, %n
14  br i1 %j.cmp, label %body, label %exit
15
16    body:
17      store double 42.0, ptr %A
18      br label %inc
19
20inc:
21  %j.inc = add nuw nsw i32 %j, 1
22  br label %for, !llvm.loop !2
23
24exit:
25  br label %return
26
27return:
28  ret void
29}
30
31
32!2 = distinct !{!2, !4}
33!4 = !{!"llvm.loop.unroll.enable", i1 true}
34
35
36; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
37; CHECK-NEXT:  Calculated schedule:
38; CHECK-NEXT:    n/a
39