derek.holloway
7502bf64a4
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219 lines
12 KiB
LLVM
219 lines
12 KiB
LLVM
; REQUIRES: asserts && x86-registered-target
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; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-stale-profile-matching-LCS.prof --salvage-stale-profile -S --debug-only=sample-profile,sample-profile-matcher,sample-profile-impl 2>&1 | FileCheck %s
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; RUN: opt < %s -passes=sample-profile -sample-profile-file=%S/Inputs/pseudo-probe-stale-profile-matching-LCS.prof --salvage-stale-profile -S --debug-only=sample-profile,sample-profile-matcher,sample-profile-impl --salvage-stale-profile-max-callsites=6 2>&1 | FileCheck %s -check-prefix=CHECK-MAX-CALLSITES
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; CHECK: Run stale profile matching for test_indirect_call
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; CHECK: Location is matched from 1 to 1
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; CHECK: Location is matched from 2 to 2
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; CHECK: Location is matched from 3 to 3
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; CHECK: Location is matched from 4 to 4
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; CHECK: Callsite with callee:C is matched from 5 to 2
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; CHECK: Location is rematched backwards from 3 to 0
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; CHECK: Location is rematched backwards from 4 to 1
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; CHECK: Callsite with callee:unknown.indirect.callee is matched from 6 to 3
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; CHECK:Callsite with callee:B is matched from 7 to 4
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; CHECK: Location is matched from 8 to 5
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; CHECK: Callsite with callee:unknown.indirect.callee is matched from 9 to 6
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; CHECK: Callsite with callee:C is matched from 10 to 7
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; CHECK: Run stale profile matching for test_direct_call
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; CHECK: Location is matched from 1 to 1
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; CHECK: Location is matched from 2 to 2
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; CHECK: Location is matched from 3 to 3
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; CHECK: Callsite with callee:C is matched from 4 to 2
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; CHECK: Location is rematched backwards from 3 to 1
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; CHECK: Callsite with callee:A is matched from 5 to 4
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; CHECK: Callsite with callee:B is matched from 6 to 5
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; CHECK: Location is matched from 7 to 6
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; CHECK: Callsite with callee:A is matched from 8 to 6
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; CHECK-MAX-CALLSITES: Skip stale profile matching for test_direct_call
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; CHECK-MAX-CALLSITES-NOT: Skip stale profile matching for test_indirect_call
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@c = external global i32, align 4
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; Function Attrs: nounwind uwtable
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define dso_local i32 @test_direct_call(i32 noundef %x) #0 !dbg !12 {
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entry:
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#dbg_value(i32 %x, !17, !DIExpression(), !18)
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call void @llvm.pseudoprobe(i64 -4364451034228175269, i64 1, i32 0, i64 -1), !dbg !19
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%call = call i32 @A(i32 noundef %x), !dbg !20
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%add = add nsw i32 %x, %call, !dbg !22
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#dbg_value(i32 %add, !17, !DIExpression(), !18)
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%call1 = call i32 @B(i32 noundef %add), !dbg !23
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%add2 = add nsw i32 %add, %call1, !dbg !25
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#dbg_value(i32 %add2, !17, !DIExpression(), !18)
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%call3 = call i32 @C(i32 noundef %add2), !dbg !26
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%add4 = add nsw i32 %add2, %call3, !dbg !28
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#dbg_value(i32 %add4, !17, !DIExpression(), !18)
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%call5 = call i32 @A(i32 noundef %add4), !dbg !29
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%add6 = add nsw i32 %add4, %call5, !dbg !31
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#dbg_value(i32 %add6, !17, !DIExpression(), !18)
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%call7 = call i32 @B(i32 noundef %add6), !dbg !32
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%add8 = add nsw i32 %add6, %call7, !dbg !34
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#dbg_value(i32 %add8, !17, !DIExpression(), !18)
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%call9 = call i32 @B(i32 noundef %add8), !dbg !35
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%add10 = add nsw i32 %add8, %call9, !dbg !37
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#dbg_value(i32 %add10, !17, !DIExpression(), !18)
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%call11 = call i32 @A(i32 noundef %add10), !dbg !38
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%add12 = add nsw i32 %add10, %call11, !dbg !40
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#dbg_value(i32 %add12, !17, !DIExpression(), !18)
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ret i32 %add12, !dbg !41
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}
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; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare !dbg !42 i32 @A(i32 noundef) #2
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declare !dbg !43 i32 @B(i32 noundef) #2
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declare !dbg !44 i32 @C(i32 noundef) #2
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; Function Attrs: nounwind uwtable
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define dso_local i32 @test_indirect_call(i32 noundef %x) #0 !dbg !45 {
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entry:
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#dbg_value(i32 %x, !47, !DIExpression(), !50)
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call void @llvm.pseudoprobe(i64 -8563147518712133441, i64 1, i32 0, i64 -1), !dbg !51
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%0 = load i32, ptr @c, align 4, !dbg !51, !tbaa !53
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%tobool = icmp ne i32 %0, 0, !dbg !51
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br i1 %tobool, label %if.then, label %if.else, !dbg !57
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if.then: ; preds = %entry
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call void @llvm.pseudoprobe(i64 -8563147518712133441, i64 2, i32 0, i64 -1), !dbg !58
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#dbg_value(ptr @A, !48, !DIExpression(), !50)
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br label %if.end, !dbg !59
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if.else: ; preds = %entry
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call void @llvm.pseudoprobe(i64 -8563147518712133441, i64 3, i32 0, i64 -1), !dbg !60
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#dbg_value(ptr @B, !48, !DIExpression(), !50)
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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%fp.0 = phi ptr [ @A, %if.then ], [ @B, %if.else ], !dbg !61
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#dbg_value(ptr %fp.0, !48, !DIExpression(), !50)
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call void @llvm.pseudoprobe(i64 -8563147518712133441, i64 4, i32 0, i64 -1), !dbg !62
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%call = call i32 @C(i32 noundef %x), !dbg !63
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%add = add nsw i32 %x, %call, !dbg !65
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#dbg_value(i32 %add, !47, !DIExpression(), !50)
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%call1 = call i32 %fp.0(i32 noundef %add), !dbg !66
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%add2 = add nsw i32 %add, %call1, !dbg !68
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#dbg_value(i32 %add2, !47, !DIExpression(), !50)
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%call3 = call i32 @B(i32 noundef %add2), !dbg !69
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%add4 = add nsw i32 %add2, %call3, !dbg !71
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#dbg_value(i32 %add4, !47, !DIExpression(), !50)
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%call5 = call i32 @C(i32 noundef %add4), !dbg !72
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%add6 = add nsw i32 %add4, %call5, !dbg !74
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#dbg_value(i32 %add6, !47, !DIExpression(), !50)
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%call7 = call i32 %fp.0(i32 noundef %add6), !dbg !75
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%add8 = add nsw i32 %add6, %call7, !dbg !77
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#dbg_value(i32 %add8, !47, !DIExpression(), !50)
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%call9 = call i32 @C(i32 noundef %add8), !dbg !78
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%add10 = add nsw i32 %add8, %call9, !dbg !80
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#dbg_value(i32 %add10, !47, !DIExpression(), !50)
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ret i32 %add10, !dbg !81
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}
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; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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declare void @llvm.lifetime.start.p0(ptr nocapture) #3
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; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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declare void @llvm.lifetime.end.p0(ptr nocapture) #3
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; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(inaccessiblemem: readwrite)
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declare void @llvm.pseudoprobe(i64, i64, i32, i64) #4
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attributes #0 = { nounwind 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" "use-sample-profile" }
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attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn }
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attributes #2 = { "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" }
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attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn }
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attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}
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!llvm.ident = !{!9}
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!llvm.pseudo_probe_desc = !{!10, !11}
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!0 = distinct !DICompileUnit(language: DW_LANG_C11, file: !1, producer: "clang version 19.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, debugInfoForProfiling: true, nameTableKind: None)
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!1 = !DIFile(filename: "test.c", directory: "/home/", checksumkind: CSK_MD5, checksum: "be98aa946f37f0ad8d307c9121efe101")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 8, !"PIC Level", i32 2}
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!6 = !{i32 7, !"PIE Level", i32 2}
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!7 = !{i32 7, !"uwtable", i32 2}
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!8 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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!9 = !{!"clang version 19.0.0"}
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!10 = !{i64 -4364451034228175269, i64 1970329131941887, !"test_direct_call"}
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!11 = !{i64 -8563147518712133441, i64 1688922477484692, !"test_indirect_call"}
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!12 = distinct !DISubprogram(name: "test_direct_call", scope: !1, file: !1, line: 10, type: !13, scopeLine: 10, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !16)
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!13 = !DISubroutineType(types: !14)
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!14 = !{!15, !15}
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!15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!16 = !{!17}
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!17 = !DILocalVariable(name: "x", arg: 1, scope: !12, file: !1, line: 10, type: !15)
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!18 = !DILocation(line: 0, scope: !12)
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!19 = !DILocation(line: 11, column: 10, scope: !12)
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!20 = !DILocation(line: 11, column: 8, scope: !21)
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!21 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646551)
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!22 = !DILocation(line: 11, column: 5, scope: !12)
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!23 = !DILocation(line: 12, column: 8, scope: !24)
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!24 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646559)
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!25 = !DILocation(line: 12, column: 5, scope: !12)
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!26 = !DILocation(line: 13, column: 8, scope: !27)
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!27 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646567)
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!28 = !DILocation(line: 13, column: 5, scope: !12)
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!29 = !DILocation(line: 14, column: 8, scope: !30)
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!30 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646575)
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!31 = !DILocation(line: 14, column: 5, scope: !12)
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!32 = !DILocation(line: 15, column: 8, scope: !33)
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!33 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646583)
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!34 = !DILocation(line: 15, column: 5, scope: !12)
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!35 = !DILocation(line: 16, column: 8, scope: !36)
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!36 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646591)
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!37 = !DILocation(line: 16, column: 5, scope: !12)
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!38 = !DILocation(line: 17, column: 8, scope: !39)
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!39 = !DILexicalBlockFile(scope: !12, file: !1, discriminator: 186646599)
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!40 = !DILocation(line: 17, column: 5, scope: !12)
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!41 = !DILocation(line: 18, column: 3, scope: !12)
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!42 = !DISubprogram(name: "A", scope: !1, file: !1, line: 2, type: !13, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
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!43 = !DISubprogram(name: "B", scope: !1, file: !1, line: 3, type: !13, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
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!44 = !DISubprogram(name: "C", scope: !1, file: !1, line: 4, type: !13, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
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!45 = distinct !DISubprogram(name: "test_indirect_call", scope: !1, file: !1, line: 21, type: !13, scopeLine: 21, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !46)
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!46 = !{!47, !48}
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!47 = !DILocalVariable(name: "x", arg: 1, scope: !45, file: !1, line: 21, type: !15)
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!48 = !DILocalVariable(name: "fp", scope: !45, file: !1, line: 22, type: !49)
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!49 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
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!50 = !DILocation(line: 0, scope: !45)
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!51 = !DILocation(line: 23, column: 6, scope: !52)
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!52 = distinct !DILexicalBlock(scope: !45, file: !1, line: 23, column: 6)
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!53 = !{!54, !54, i64 0}
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!54 = !{!"int", !55, i64 0}
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!55 = !{!"omnipotent char", !56, i64 0}
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!56 = !{!"Simple C/C++ TBAA"}
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!57 = !DILocation(line: 23, column: 6, scope: !45)
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!58 = !DILocation(line: 24, column: 8, scope: !52)
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!59 = !DILocation(line: 24, column: 5, scope: !52)
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!60 = !DILocation(line: 26, column: 8, scope: !52)
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!61 = !DILocation(line: 0, scope: !52)
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!62 = !DILocation(line: 27, column: 10, scope: !45)
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!63 = !DILocation(line: 27, column: 8, scope: !64)
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!64 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 186646575)
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!65 = !DILocation(line: 27, column: 5, scope: !45)
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!66 = !DILocation(line: 28, column: 8, scope: !67)
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!67 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 119537719)
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!68 = !DILocation(line: 28, column: 5, scope: !45)
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!69 = !DILocation(line: 29, column: 8, scope: !70)
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!70 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 186646591)
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!71 = !DILocation(line: 29, column: 5, scope: !45)
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!72 = !DILocation(line: 30, column: 8, scope: !73)
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!73 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 186646599)
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!74 = !DILocation(line: 30, column: 5, scope: !45)
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!75 = !DILocation(line: 31, column: 8, scope: !76)
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!76 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 119537743)
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!77 = !DILocation(line: 31, column: 5, scope: !45)
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!78 = !DILocation(line: 32, column: 8, scope: !79)
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!79 = !DILexicalBlockFile(scope: !45, file: !1, discriminator: 186646615)
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!80 = !DILocation(line: 32, column: 5, scope: !45)
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!81 = !DILocation(line: 33, column: 3, scope: !45)
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