xref: /llvm-project/polly/test/CodeGen/perf_monitoring_cycles_per_scop.ll (revision e1f056f692d869708c1898d9d65a69ac5584a0ed) 
1; RUN: opt %loadNPMPolly -passes=polly-codegen -polly-codegen-perf-monitoring \
2; RUN:   -S < %s | FileCheck %s
3
4; void f(long A[], long N) {
5;   long i;
6;   if (true)
7;     for (i = 0; i < N; ++i)
8;       A[i] = i;
9; }
10; void g(long A[], long N) {
11;   long i;
12;   if (true)
13;     for (i = 0; i < N; ++i)
14;       A[i] = i;
15; }
16
17target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
18target triple = "x86_64-unknown-linux-gnu"
19
20define void @f(ptr %A, i64 %N) nounwind {
21entry:
22  fence seq_cst
23  br label %next
24
25next:
26  br i1 true, label %for.i, label %return
27
28for.i:
29  %indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
30  %scevgep = getelementptr i64, ptr %A, i64 %indvar
31  store i64 %indvar, ptr %scevgep
32  %indvar.next = add nsw i64 %indvar, 1
33  %exitcond = icmp eq i64 %indvar.next, %N
34  br i1 %exitcond, label %return, label %for.i
35
36return:
37  fence seq_cst
38  ret void
39}
40
41
42define void @g(ptr %A, i64 %N) nounwind {
43entry:
44  fence seq_cst
45  br label %next
46
47next:
48  br i1 true, label %for.i, label %return
49
50for.i:
51  %indvar = phi i64 [ 0, %next], [ %indvar.next, %for.i ]
52  %scevgep = getelementptr i64, ptr %A, i64 %indvar
53  store i64 %indvar, ptr %scevgep
54  %indvar.next = add nsw i64 %indvar, 1
55  %exitcond = icmp eq i64 %indvar.next, %N
56  br i1 %exitcond, label %return, label %for.i
57
58return:
59  fence seq_cst
60  ret void
61}
62
63; Declaration of globals - Check for cycles declaration.
64; @"__polly_perf_in_f_from__%next__to__%polly.merge_new_and_old_cycles" = weak thread_local(initialexec) constant i64 0
65; @"__polly_perf_in_g_from__%next__to__%polly.merge_new_and_old_cycles" = weak thread_local(initialexec) constant i64 0
66
67; Bumping up number of cycles in f
68; CHECK:      %12 = load volatile i64, ptr @"__polly_perf_in_f_from__%next__to__%polly.merge_new_and_old_cycles"
69; CHECK-NEXT: %13 = add i64 %12, %9
70; CHECK-NEXT: store volatile i64 %13, ptr @"__polly_perf_in_f_from__%next__to__%polly.merge_new_and_old_cycles"
71
72; Bumping up number of cycles in g
73; CHECK:      %12 = load volatile i64, ptr @"__polly_perf_in_g_from__%next__to__%polly.merge_new_and_old_cycles"
74; CHECK-NEXT: %13 = add i64 %12, %9
75; CHECK-NEXT: store volatile i64 %13, ptr @"__polly_perf_in_g_from__%next__to__%polly.merge_new_and_old_cycles"
76