xref: /llvm-project/llvm/test/CodeGen/X86/fsafdo_probe.ll (revision d4d6b9a142f0017b4d5668155fbbe045c838b8a6) 
1; REQUIRES: x86_64-linux
2; REQUIRES: asserts
3; RUN: llc -enable-fs-discriminator -improved-fs-discriminator=false --debug-only=mirfs-discriminators  < %s  -o - 2>&1 | FileCheck %s --check-prefixes=V0
4; RUN: llc -enable-fs-discriminator -improved-fs-discriminator=true --debug-only=mirfs-discriminators  < %s  -o - 2>&1 | FileCheck %s --check-prefixes=V1
5
6; Check that fs-afdo discriminators are generated.
7; V0: foo.c:7:3: add FS discriminator, from 0 -> 11264
8; V0: foo.c:9:5: add FS discriminator, from 0 -> 11264
9; V0: Num of FS Discriminators: 2
10
11; V1: foo.c:7:3: add FS discriminator, from 0 -> 256
12; V1: foo.c:9:5: add FS discriminator, from 0 -> 256
13; V1: Num of FS Discriminators: 2
14
15target triple = "x86_64-unknown-linux-gnu"
16
17%struct.Node = type { ptr }
18
19define i32 @foo(ptr readonly %node, ptr readnone %root) !dbg !6  {
20entry:
21  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 1, i32 0, i64 -1), !dbg !8
22  %cmp = icmp eq ptr %node, %root, !dbg !8
23  br i1 %cmp, label %while.end4, label %while.cond1.preheader.lr.ph, !dbg !10
24
25while.cond1.preheader.lr.ph:
26  %tobool = icmp eq ptr %node, null
27  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1), !dbg !11
28  br i1 %tobool, label %while.cond1.preheader.us.preheader, label %while.body2.preheader, !dbg !11
29
30while.body2.preheader:
31  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1), !dbg !11
32  br label %while.body2, !dbg !11
33
34while.cond1.preheader.us.preheader:
35  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 3, i32 0, i64 -1), !dbg !10
36  br label %while.cond1.preheader.us, !dbg !10
37
38while.cond1.preheader.us:
39  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 3, i32 0, i64 -1), !dbg !10
40  br label %while.cond1.preheader.us, !dbg !10
41
42while.body2:
43  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 2, i32 0, i64 -1), !dbg !11
44  br label %while.body2, !dbg !11
45
46while.end4:
47  call void @llvm.pseudoprobe(i64 6699318081062747564, i64 4, i32 0, i64 -1), !dbg !12
48  ret i32 0, !dbg !12
49}
50
51declare void @llvm.pseudoprobe(i64, i64, i32, i64) #0
52
53attributes #0 = { inaccessiblememonly nocallback nofree nosync nounwind willreturn }
54
55!llvm.dbg.cu = !{!0}
56!llvm.module.flags = !{!3, !4}
57!llvm.pseudo_probe_desc = !{!13}
58
59!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, isOptimized: true, debugInfoForProfiling: true, emissionKind: LineTablesOnly)
60!1 = !DIFile(filename: "foo.c", directory: "b/")
61!2 = !{}
62!3 = !{i32 2, !"Dwarf Version", i32 4}
63!4 = !{i32 2, !"Debug Info Version", i32 3}
64!5 = !{}
65!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 5, type: !7, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !2)
66!7 = !DISubroutineType(types: !2)
67!8 = !DILocation(line: 7, column: 15, scope: !9)
68;; The discriminator with value 2 is to test that it can be cleaned up by the first FS discriminator pass.
69!9 = !DILexicalBlockFile(scope: !6, file: !1, discriminator: 2)
70!10 = !DILocation(line: 7, column: 3, scope: !9)
71!11 = !DILocation(line: 9, column: 5, scope: !9)
72!12 = !DILocation(line: 14, column: 3, scope: !6)
73!13 = !{i64 6699318081062747564, i64 138464321060, !"foo"}
74