xref: /llvm-project/polly/test/ScheduleOptimizer/ManualOptimization/unroll_double.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed)
1; RUN: opt %loadNPMPolly '-passes=print<polly-opt-isl>' -disable-output < %s | FileCheck %s --match-full-lines
2;
3; Apply two loop transformations. First partial, then full unrolling.
4;
5define void @func(ptr noalias nonnull %A) {
6entry:
7  br label %for
8
9for:
10  %j = phi i32 [0, %entry], [%j.inc, %inc]
11  %j.cmp = icmp slt i32 %j, 12
12  br i1 %j.cmp, label %body, label %exit
13
14    body:
15      store double 42.0, ptr %A
16      br label %inc
17
18inc:
19  %j.inc = add nuw nsw i32 %j, 1
20  br label %for, !llvm.loop !2
21
22exit:
23  br label %return
24
25return:
26  ret void
27}
28
29
30!2 = distinct !{!2, !4, !5, !6}
31!4 = !{!"llvm.loop.unroll.enable", i1 true}
32!5 = !{!"llvm.loop.unroll.count", i4 4}
33!6 = !{!"llvm.loop.unroll.followup_unrolled", !7}
34
35!7 = distinct !{!7, !8, !9}
36!8 = !{!"llvm.loop.unroll.enable", i1 true}
37!9 = !{!"llvm.loop.unroll.full"}
38
39
40; CHECK-LABEL: Printing analysis 'Polly - Optimize schedule of SCoP' for region: 'for => return' in function 'func':
41; CHECK: domain: "{ Stmt_body[i0] : 0 <= i0 <= 11 }"
42; CHECK    sequence:
43; CHECK:   - filter: "{ Stmt_body[i0] : 0 <= i0 <= 3 }"
44; CHECK        sequence:
45; CHECK:       - filter: "{ Stmt_body[0] }"
46; CHECK:       - filter: "{ Stmt_body[i0] : (-1 + i0) mod 4 = 0 }"
47; CHECK:       - filter: "{ Stmt_body[i0] : (2 + i0) mod 4 = 0 }"
48; CHECK:       - filter: "{ Stmt_body[i0] : (1 + i0) mod 4 = 0 }"
49; CHECK    sequence:
50; CHECK:   - filter: "{ Stmt_body[i0] : 4 <= i0 <= 7 }"
51; CHECK        sequence:
52; CHECK:       - filter: "{ Stmt_body[4] }"
53; CHECK:       - filter: "{ Stmt_body[i0] : (-1 + i0) mod 4 = 0 }"
54; CHECK:       - filter: "{ Stmt_body[i0] : (2 + i0) mod 4 = 0 }"
55; CHECK:       - filter: "{ Stmt_body[i0] : (1 + i0) mod 4 = 0 }"
56; CHECK    sequence:
57; CHECK:   - filter: "{ Stmt_body[i0] : 8 <= i0 <= 11 }"
58; CHECK        sequence:
59; CHECK:       - filter: "{ Stmt_body[8] }"
60; CHECK:       - filter: "{ Stmt_body[i0] : (-1 + i0) mod 4 = 0 }"
61; CHECK:       - filter: "{ Stmt_body[i0] : (2 + i0) mod 4 = 0 }"
62; CHECK:       - filter: "{ Stmt_body[i0] : (1 + i0) mod 4 = 0 }"
63