1; RUN: llc < %s | FileCheck --check-prefixes=CHECK %s 2; RUN: llc -O0 < %s | FileCheck --check-prefixes=CHECK %s 3 4; RUN: llc --try-experimental-debuginfo-iterators < %s | FileCheck --check-prefixes=CHECK %s 5; RUN: llc --try-experimental-debuginfo-iterators -O0 < %s | FileCheck --check-prefixes=CHECK %s 6 7; Source to regenerate: 8; $ clang -cc1 -triple x86_64-windows-msvc t.cpp -debug-info-kind=limited \ 9; -gcodeview -O2 -fms-extensions -emit-llvm -o t.ll 10; 11; extern "C" struct Foo { 12; __declspec(allocator) virtual ptr alloc(); 13; }; 14; extern "C" __declspec(allocator) Foo *alloc_foo(); 15; extern "C" void use_result(ptr); 16; extern "C" Foo *call_tail() { 17; return alloc_foo(); 18; } 19; extern "C" int call_virtual(Foo *p) { 20; use_result(p->alloc()); 21; return 0; 22; } 23; extern "C" int call_multiple() { 24; use_result(alloc_foo()); 25; use_result(alloc_foo()); 26; return 0; 27; } 28 29; ModuleID = 't.cpp' 30source_filename = "t.cpp" 31target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 32target triple = "x86_64-unknown-windows-msvc" 33 34%struct.Foo = type { ptr } 35 36; Function Attrs: nounwind 37define dso_local ptr @call_tail() local_unnamed_addr #0 !dbg !7 { 38entry: 39 %call = tail call ptr @alloc_foo() #3, !dbg !13, !heapallocsite !12 40 ret ptr %call, !dbg !13 41} 42 43declare dso_local ptr @alloc_foo() local_unnamed_addr #1 44 45; Function Attrs: nounwind 46define dso_local i32 @call_virtual(ptr %p) local_unnamed_addr #0 !dbg !14 { 47entry: 48 call void @llvm.dbg.value(metadata ptr %p, metadata !19, metadata !DIExpression()), !dbg !20 49 %vtable = load ptr, ptr %p, align 8, !dbg !21, !tbaa !22 50 %0 = load ptr, ptr %vtable, align 8, !dbg !21 51 %call = tail call ptr %0(ptr %p) #3, !dbg !21, !heapallocsite !2 52 tail call void @use_result(ptr %call) #3, !dbg !21 53 ret i32 0, !dbg !25 54} 55 56declare dso_local void @use_result(ptr) local_unnamed_addr #1 57 58; Function Attrs: nounwind 59define dso_local i32 @call_multiple() local_unnamed_addr #0 !dbg !26 { 60entry: 61 %call = tail call ptr @alloc_foo() #3, !dbg !29, !heapallocsite !12 62 tail call void @use_result(ptr %call) #3, !dbg !29 63 %call1 = tail call ptr @alloc_foo() #3, !dbg !30, !heapallocsite !12 64 tail call void @use_result(ptr %call1) #3, !dbg !30 65 ret i32 0, !dbg !31 66} 67 68; Function Attrs: nounwind readnone speculatable willreturn 69declare void @llvm.dbg.value(metadata, metadata, metadata) #2 70 71 72; Don't emit metadata for tail calls. 73; CHECK-LABEL: call_tail: # @call_tail 74; CHECK: jmp alloc_foo 75 76; CHECK-LABEL: call_virtual: # @call_virtual 77; CHECK: callq *{{.*}}%rax{{.*}} 78; CHECK-NEXT: [[LABEL1:.Ltmp[0-9]+]]: 79 80; CHECK-LABEL: call_multiple: # @call_multiple 81; CHECK: callq alloc_foo 82; CHECK-NEXT: [[LABEL3:.Ltmp[0-9]+]]: 83; CHECK: callq alloc_foo 84; CHECK-NEXT: [[LABEL5:.Ltmp[0-9]+]]: 85 86; CHECK-LABEL: .short 4423 # Record kind: S_GPROC32_ID 87; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE 88; CHECK-NEXT: .secrel32 [[LABEL0:.Ltmp[0-9]+]] 89; CHECK-NEXT: .secidx [[LABEL0]] 90; CHECK-NEXT: .short [[LABEL1]]-[[LABEL0]] 91; CHECK-NEXT: .long 3 92; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE 93; CHECK-NEXT: .secrel32 [[LABEL2:.Ltmp[0-9]+]] 94; CHECK-NEXT: .secidx [[LABEL2]] 95; CHECK-NEXT: .short [[LABEL3]]-[[LABEL2]] 96; CHECK-NEXT: .long 4096 97; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE 98; CHECK-NEXT: .secrel32 [[LABEL4:.Ltmp[0-9]+]] 99; CHECK-NEXT: .secidx [[LABEL4]] 100; CHECK-NEXT: .short [[LABEL5]]-[[LABEL4]] 101; CHECK-NEXT: .long 4096 102 103attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 104attributes #1 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 105attributes #2 = { nounwind readnone speculatable willreturn } 106attributes #3 = { nounwind } 107 108!llvm.dbg.cu = !{!0} 109!llvm.module.flags = !{!3, !4, !5} 110!llvm.ident = !{!6} 111 112!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git fa686ea7650235c6dff988cc8cba49e130b3d5f8)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) 113!1 = !DIFile(filename: "<stdin>", directory: "/usr/local/google/home/akhuang/testing/heapallocsite", checksumkind: CSK_MD5, checksum: "e0a04508b4229fc4aee0baa364e25987") 114!2 = !{} 115!3 = !{i32 2, !"CodeView", i32 1} 116!4 = !{i32 2, !"Debug Info Version", i32 3} 117!5 = !{i32 1, !"wchar_size", i32 2} 118!6 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git fa686ea7650235c6dff988cc8cba49e130b3d5f8)"} 119!7 = distinct !DISubprogram(name: "call_tail", scope: !8, file: !8, line: 6, type: !9, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) 120!8 = !DIFile(filename: "t.cpp", directory: "/usr/local/google/home/akhuang/testing/heapallocsite", checksumkind: CSK_MD5, checksum: "e0a04508b4229fc4aee0baa364e25987") 121!9 = !DISubroutineType(types: !10) 122!10 = !{!11} 123!11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) 124!12 = !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !8, line: 1, flags: DIFlagFwdDecl, identifier: ".?AUFoo@@") 125!13 = !DILocation(line: 7, scope: !7) 126!14 = distinct !DISubprogram(name: "call_virtual", scope: !8, file: !8, line: 9, type: !15, scopeLine: 9, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !18) 127!15 = !DISubroutineType(types: !16) 128!16 = !{!17, !11} 129!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 130!18 = !{!19} 131!19 = !DILocalVariable(name: "p", arg: 1, scope: !14, file: !8, line: 9, type: !11) 132!20 = !DILocation(line: 0, scope: !14) 133!21 = !DILocation(line: 10, scope: !14) 134!22 = !{!23, !23, i64 0} 135!23 = !{!"vtable pointer", !24, i64 0} 136!24 = !{!"Simple C++ TBAA"} 137!25 = !DILocation(line: 11, scope: !14) 138!26 = distinct !DISubprogram(name: "call_multiple", scope: !8, file: !8, line: 13, type: !27, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) 139!27 = !DISubroutineType(types: !28) 140!28 = !{!17} 141!29 = !DILocation(line: 14, scope: !26) 142!30 = !DILocation(line: 15, scope: !26) 143!31 = !DILocation(line: 16, scope: !26) 144