1 ;; Tests memprof profile matching when the leaf frame is missing in the
2 ;; profile. In this case the call to operator new was inlined before
3 ;; matching and we are able to match the next call frame up the inlined
6 ;; Avoid failures on big-endian systems that can't read the profile properly
7 ; REQUIRES: x86_64-linux
9 ;; TODO: Use text profile inputs once that is available for memprof.
10 ;; # To update the Inputs below, run Inputs/update_memprof_inputs.sh.
11 ;; # To generate below LLVM IR for use in matching.
12 ;; $ clang++ -gmlt -fdebug-info-for-profiling -S memprof_missing_leaf.cc \
15 ; RUN: llvm-profdata merge %S/Inputs/memprof_missing_leaf.memprofraw --profiled-binary %S/Inputs/memprof_missing_leaf.exe -o %t.memprofdata
16 ; RUN: opt < %s -passes='memprof-use<profile-filename=%t.memprofdata>' -S | FileCheck %s
18 ; CHECK: call {{.*}} @_Znam{{.*}} #[[ATTR:[0-9]+]]
19 ; CHECK: attributes #[[ATTR]] = {{.*}} "memprof"="notcold"
21 ; ModuleID = '<stdin>'
22 source_filename = "memprof_missing_leaf.cc"
23 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
24 target triple = "x86_64-unknown-linux-gnu"
26 ; Function Attrs: nobuiltin allocsize(0)
27 declare noundef nonnull ptr @_Znam(i64 noundef) #0
29 ; Function Attrs: mustprogress norecurse uwtable
30 define dso_local noundef i32 @main() #1 !dbg !8 {
32 %s.addr.i = alloca i64, align 8
33 %retval = alloca i32, align 4
34 %a = alloca ptr, align 8
35 store i32 0, ptr %retval, align 4
36 store i64 1, ptr %s.addr.i, align 8, !tbaa !11
37 %0 = load i64, ptr %s.addr.i, align 8, !dbg !15, !tbaa !11
38 %call.i = call noalias noundef nonnull ptr @_Znam(i64 noundef %0) #3, !dbg !18
39 store ptr %call.i, ptr %a, align 8, !dbg !19, !tbaa !20
40 %1 = load ptr, ptr %a, align 8, !dbg !22, !tbaa !20
41 %isnull = icmp eq ptr %1, null, !dbg !23
42 br i1 %isnull, label %delete.end, label %delete.notnull, !dbg !23
44 delete.notnull: ; preds = %entry
45 call void @_ZdlPv(ptr noundef %1) #4, !dbg !23
46 br label %delete.end, !dbg !23
48 delete.end: ; preds = %delete.notnull, %entry
52 ; Function Attrs: nobuiltin nounwind
53 declare void @_ZdlPv(ptr noundef) #2
55 attributes #0 = { nobuiltin allocsize(0) "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
56 attributes #1 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
57 attributes #2 = { nobuiltin nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
58 attributes #3 = { builtin allocsize(0) }
59 attributes #4 = { builtin nounwind }
62 !llvm.module.flags = !{!2, !3, !4, !5, !6, !7}
64 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 18.0.0 (git@github.com:llvm/llvm-project.git 71bf052ec90e77cb4aa66505d47cbc4b6016ac1d)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
65 !1 = !DIFile(filename: "memprof_missing_leaf.cc", directory: ".", checksumkind: CSK_MD5, checksum: "f1445a8699406a6b826128704d257677")
66 !2 = !{i32 7, !"Dwarf Version", i32 5}
67 !3 = !{i32 2, !"Debug Info Version", i32 3}
68 !4 = !{i32 1, !"wchar_size", i32 4}
69 !5 = !{i32 8, !"PIC Level", i32 2}
70 !6 = !{i32 7, !"PIE Level", i32 2}
71 !7 = !{i32 7, !"uwtable", i32 2}
72 !8 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 15, type: !9, scopeLine: 15, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
73 !9 = !DISubroutineType(types: !10)
75 !11 = !{!12, !12, i64 0}
76 !12 = !{!"long", !13, i64 0}
77 !13 = !{!"omnipotent char", !14, i64 0}
78 !14 = !{!"Simple C++ TBAA"}
79 !15 = !DILocation(line: 11, column: 19, scope: !16, inlinedAt: !17)
80 !16 = distinct !DISubprogram(name: "bar", linkageName: "_Z3barm", scope: !1, file: !1, line: 7, type: !9, scopeLine: 7, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
81 !17 = distinct !DILocation(line: 16, column: 21, scope: !8)
82 !18 = !DILocation(line: 11, column: 10, scope: !16, inlinedAt: !17)
83 !19 = !DILocation(line: 16, column: 9, scope: !8)
84 !20 = !{!21, !21, i64 0}
85 !21 = !{!"any pointer", !13, i64 0}
86 !22 = !DILocation(line: 17, column: 10, scope: !8)
87 !23 = !DILocation(line: 17, column: 3, scope: !8)
88 !24 = !DILocation(line: 18, column: 3, scope: !8)