| ; RUN: llc < %s | FileCheck --check-prefixes=CHECK %s |
| ; RUN: llc -O0 < %s | FileCheck --check-prefixes=CHECK %s |
| |
| ; Source to regenerate: |
| ; $ clang -cc1 -triple x86_64-windows-msvc t.cpp -debug-info-kind=limited \ |
| ; -gcodeview -O2 -fms-extensions -emit-llvm -o t.ll |
| ; |
| ; extern "C" struct Foo { |
| ; __declspec(allocator) virtual ptr alloc(); |
| ; }; |
| ; extern "C" __declspec(allocator) Foo *alloc_foo(); |
| ; extern "C" void use_result(ptr); |
| ; extern "C" Foo *call_tail() { |
| ; return alloc_foo(); |
| ; } |
| ; extern "C" int call_virtual(Foo *p) { |
| ; use_result(p->alloc()); |
| ; return 0; |
| ; } |
| ; extern "C" int call_multiple() { |
| ; use_result(alloc_foo()); |
| ; use_result(alloc_foo()); |
| ; return 0; |
| ; } |
| |
| ; ModuleID = 't.cpp' |
| source_filename = "t.cpp" |
| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-windows-msvc" |
| |
| %struct.Foo = type { ptr } |
| |
| ; Function Attrs: nounwind |
| define dso_local ptr @call_tail() local_unnamed_addr #0 !dbg !7 { |
| entry: |
| %call = tail call ptr @alloc_foo() #3, !dbg !13, !heapallocsite !12 |
| ret ptr %call, !dbg !13 |
| } |
| |
| declare dso_local ptr @alloc_foo() local_unnamed_addr #1 |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @call_virtual(ptr %p) local_unnamed_addr #0 !dbg !14 { |
| entry: |
| call void @llvm.dbg.value(metadata ptr %p, metadata !19, metadata !DIExpression()), !dbg !20 |
| %vtable = load ptr, ptr %p, align 8, !dbg !21, !tbaa !22 |
| %0 = load ptr, ptr %vtable, align 8, !dbg !21 |
| %call = tail call ptr %0(ptr %p) #3, !dbg !21, !heapallocsite !2 |
| tail call void @use_result(ptr %call) #3, !dbg !21 |
| ret i32 0, !dbg !25 |
| } |
| |
| declare dso_local void @use_result(ptr) local_unnamed_addr #1 |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @call_multiple() local_unnamed_addr #0 !dbg !26 { |
| entry: |
| %call = tail call ptr @alloc_foo() #3, !dbg !29, !heapallocsite !12 |
| tail call void @use_result(ptr %call) #3, !dbg !29 |
| %call1 = tail call ptr @alloc_foo() #3, !dbg !30, !heapallocsite !12 |
| tail call void @use_result(ptr %call1) #3, !dbg !30 |
| ret i32 0, !dbg !31 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable willreturn |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #2 |
| |
| |
| ; Don't emit metadata for tail calls. |
| ; CHECK-LABEL: call_tail: # @call_tail |
| ; CHECK: jmp alloc_foo |
| |
| ; CHECK-LABEL: call_virtual: # @call_virtual |
| ; CHECK: callq *{{.*}}%rax{{.*}} |
| ; CHECK-NEXT: [[LABEL1:.Ltmp[0-9]+]]: |
| |
| ; CHECK-LABEL: call_multiple: # @call_multiple |
| ; CHECK: callq alloc_foo |
| ; CHECK-NEXT: [[LABEL3:.Ltmp[0-9]+]]: |
| ; CHECK: callq alloc_foo |
| ; CHECK-NEXT: [[LABEL5:.Ltmp[0-9]+]]: |
| |
| ; CHECK-LABEL: .short 4423 # Record kind: S_GPROC32_ID |
| ; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE |
| ; CHECK-NEXT: .secrel32 [[LABEL0:.Ltmp[0-9]+]] |
| ; CHECK-NEXT: .secidx [[LABEL0]] |
| ; CHECK-NEXT: .short [[LABEL1]]-[[LABEL0]] |
| ; CHECK-NEXT: .long 3 |
| ; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE |
| ; CHECK-NEXT: .secrel32 [[LABEL2:.Ltmp[0-9]+]] |
| ; CHECK-NEXT: .secidx [[LABEL2]] |
| ; CHECK-NEXT: .short [[LABEL3]]-[[LABEL2]] |
| ; CHECK-NEXT: .long 4096 |
| ; CHECK: .short 4446 # Record kind: S_HEAPALLOCSITE |
| ; CHECK-NEXT: .secrel32 [[LABEL4:.Ltmp[0-9]+]] |
| ; CHECK-NEXT: .secidx [[LABEL4]] |
| ; CHECK-NEXT: .short [[LABEL5]]-[[LABEL4]] |
| ; CHECK-NEXT: .long 4096 |
| |
| attributes #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" } |
| attributes #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" } |
| attributes #2 = { nounwind readnone speculatable willreturn } |
| attributes #3 = { nounwind } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !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) |
| !1 = !DIFile(filename: "<stdin>", directory: "/usr/local/google/home/akhuang/testing/heapallocsite", checksumkind: CSK_MD5, checksum: "e0a04508b4229fc4aee0baa364e25987") |
| !2 = !{} |
| !3 = !{i32 2, !"CodeView", i32 1} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 2} |
| !6 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git fa686ea7650235c6dff988cc8cba49e130b3d5f8)"} |
| !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) |
| !8 = !DIFile(filename: "t.cpp", directory: "/usr/local/google/home/akhuang/testing/heapallocsite", checksumkind: CSK_MD5, checksum: "e0a04508b4229fc4aee0baa364e25987") |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{!11} |
| !11 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !12, size: 64) |
| !12 = !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !8, line: 1, flags: DIFlagFwdDecl, identifier: ".?AUFoo@@") |
| !13 = !DILocation(line: 7, scope: !7) |
| !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) |
| !15 = !DISubroutineType(types: !16) |
| !16 = !{!17, !11} |
| !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !18 = !{!19} |
| !19 = !DILocalVariable(name: "p", arg: 1, scope: !14, file: !8, line: 9, type: !11) |
| !20 = !DILocation(line: 0, scope: !14) |
| !21 = !DILocation(line: 10, scope: !14) |
| !22 = !{!23, !23, i64 0} |
| !23 = !{!"vtable pointer", !24, i64 0} |
| !24 = !{!"Simple C++ TBAA"} |
| !25 = !DILocation(line: 11, scope: !14) |
| !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) |
| !27 = !DISubroutineType(types: !28) |
| !28 = !{!17} |
| !29 = !DILocation(line: 14, scope: !26) |
| !30 = !DILocation(line: 15, scope: !26) |
| !31 = !DILocation(line: 16, scope: !26) |