xref: /llvm-project/llvm/test/Analysis/CtxProfAnalysis/flatten-icp.ll (revision 6329355860e9b66bc7ed68b46c166763e408d4cc)
1; RUN: split-file %s %t
2; RUN: llvm-ctxprof-util fromYAML --input %t/profile.yaml --output %t/profile.ctxprofdata
3;
4; In the given profile, in one of the contexts the indirect call is taken, the
5; target we're trying to ICP - GUID:2000 - doesn't appear at all. That should
6; contribute to the count of the "indirect call BB".
7; RUN: opt %t/test.ll -S -passes='require<ctx-prof-analysis>,module-inline,ctx-prof-flatten' -use-ctx-profile=%t/profile.ctxprofdata -ctx-prof-promote-alwaysinline
8
9; CHECK-LABEL: define i32 @caller(ptr %c)
10; CHECK-NEXT:     [[CND:[0-9]+]] = icmp eq ptr %c, @one
11; CHECK-NEXT:     br i1 [[CND]], label %{{.*}}, label %{{.*}}, !prof ![[BW:[0-9]+]]
12
13; CHECK: ![[BW]] = !{!"branch_weights", i32 10, i32 10}
14
15;--- test.ll
16declare i32 @external(i32 %x)
17define i32 @one() #0 !guid !0 {
18  call void @llvm.instrprof.increment(ptr @one, i64 123, i32 1, i32 0)
19  call void @llvm.instrprof.callsite(ptr @one, i64 123, i32 1, i32 0, ptr @external)
20  %ret = call i32 @external(i32 1)
21  ret i32 %ret
22}
23
24define i32 @caller(ptr %c) #1 !guid !1 {
25  call void @llvm.instrprof.increment(ptr @caller, i64 567, i32 1, i32 0)
26  call void @llvm.instrprof.callsite(ptr @caller, i64 567, i32 1, i32 0, ptr %c)
27  %ret = call i32 %c()
28  ret i32 %ret
29}
30
31define i32 @root(ptr %c) !guid !2 {
32  call void @llvm.instrprof.increment(ptr @root, i64 432, i32 1, i32 0)
33  call void @llvm.instrprof.callsite(ptr @root, i64 432, i32 2, i32 0, ptr @caller)
34  %a = call i32 @caller(ptr %c)
35  call void @llvm.instrprof.callsite(ptr @root, i64 432, i32 2, i32 1, ptr @caller)
36  %b = call i32 @caller(ptr %c)
37  %ret = add i32 %a, %b
38  ret i32 %ret
39
40}
41
42attributes #0 = { alwaysinline }
43attributes #1 = { noinline }
44!0 = !{i64 1000}
45!1 = !{i64 3000}
46!2 = !{i64 4000}
47
48;--- profile.yaml
49- Guid: 4000
50  Counters: [10]
51  Callsites:  -
52                - Guid: 3000
53                  Counters: [10]
54                  Callsites: -
55                              - Guid: 1000
56                                Counters: [10]
57              -
58                - Guid: 3000
59                  Counters: [10]
60                  Callsites: -
61                              - Guid: 9000
62                                Counters: [10]
63