xref: /llvm-project/llvm/test/Transforms/PGOProfile/counter_promo_mexits.ll (revision 9ff36df5a4a7d52c51e950522870bb64912688d2) 
1; RUN: opt < %s --passes=pgo-instr-gen,instrprof -do-counter-promotion=true -speculative-counter-promotion-max-exiting=3 -S | FileCheck --check-prefix=PROMO %s
2
3@g = common local_unnamed_addr global i32 0, align 4
4
5define void @foo(i32 %arg) local_unnamed_addr {
6; PROMO-LABEL: @foo
7bb:
8  %tmp = add nsw i32 %arg, -1
9  br label %bb1
10bb1:                                              ; preds = %bb11, %bb
11  %tmp2 = phi i32 [ 0, %bb ], [ %tmp12, %bb11 ]
12  %tmp3 = icmp sgt i32 %tmp2, %arg
13  br i1 %tmp3, label %bb7, label %bb4
14
15bb4:                                              ; preds = %bb1
16  tail call void @bar(i32 1)
17  %tmp5 = load i32, ptr @g, align 4
18  %tmp6 = icmp sgt i32 %tmp5, 100
19  br i1 %tmp6, label %bb15_0, label %bb11
20
21bb7:                                              ; preds = %bb1
22  %tmp8 = icmp slt i32 %tmp2, %tmp
23  br i1 %tmp8, label %bb9, label %bb10
24
25bb9:                                              ; preds = %bb7
26  tail call void @bar(i32 2)
27  br label %bb11
28
29bb10:                                             ; preds = %bb7
30  tail call void @bar(i32 3)
31  br label %bb11
32
33bb11:                                             ; preds = %bb10, %bb9, %bb4
34  %tmp12 = add nuw nsw i32 %tmp2, 1
35  %tmp13 = icmp slt i32 %tmp2, 99
36  br i1 %tmp13, label %bb1, label %bb14
37
38bb14:                                             ; preds = %bb11
39; PROMO-LABEL: bb14:
40  tail call void @bar(i32 0)
41  br label %bb15
42; PROMO:  %pgocount.promoted{{.*}} = load i64, ptr @__profc_foo, align 4
43; PROMO-NEXT: add
44; PROMO-NEXT: store i64 %3, ptr @__profc_foo, align 4
45; PROMO-NEXT:  %pgocount.promoted{{.*}} = load i64, ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 1), align 4
46; PROMO-NEXT: add
47; PROMO-NEXT: store {{.*}}@__profc_foo{{.*}}1)
48; PROMO-NEXT:  %pgocount.promoted{{.*}} = load i64, ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 2), align 4
49; PROMO-NEXT: add
50; PROMO-NEXT: store {{.*}}@__profc_foo{{.*}}2)
51; PROMO-NEXT:  %pgocount{{.*}} = load i64, ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 3), align 4
52; PROMO-NEXT: add
53; PROMO-NEXT: store {{.*}}@__profc_foo{{.*}}3)
54
55
56bb15_0:                                             ; preds = %bb11
57; PROMO-LABEL: bb15_0:
58  br label %bb15
59; PROMO:  %pgocount.promoted{{.*}} = load i64, ptr @__profc_foo, align 4
60; PROMO-NEXT: add
61; PROMO-NEXT: store {{.*}} @__profc_foo, align 4
62; PROMO-NEXT:  %pgocount.promoted{{.*}} = load i64, ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 1), align 4
63; PROMO-NEXT: add
64; PROMO-NEXT: store {{.*}} ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 1), align 4
65; PROMO-NEXT:  %pgocount.promoted{{.*}} = load i64, ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 2), align 4
66; PROMO-NEXT: add
67; PROMO-NEXT: store {{.*}} ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 2), align 4
68; PROMO-NEXT:  %pgocount{{.*}} = load {{.*}} @__profc_foo{{.*}} 4)
69; PROMO-NEXT: add
70; PROMO-NEXT: store {{.*}} ptr getelementptr inbounds ([5 x i64], ptr @__profc_foo, i32 0, i32 4), align 4
71; PROMO-NOT: @__profc_foo{{.*}})
72
73
74bb15:                                             ; preds = %bb14, %bb4
75  tail call void @bar(i32 1)
76  ret void
77}
78
79declare void @bar(i32) local_unnamed_addr
80