222 lines
10 KiB
LLVM
222 lines
10 KiB
LLVM
; RUN: llc -O0 %s -o - -filetype=obj \
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; RUN: | llvm-dwarfdump -statistics - | FileCheck %s
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; CHECK: "version": 6,
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; namespace test {
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; extern int a;
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; }
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; using test::a;
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;
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; int GlobalConst = 42;
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; int Global;
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;
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; struct S {
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; static const int constant = 24;
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; int (*fn)(int);
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; } s;
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;
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; int __attribute__((always_inline)) square(int i) { return i * i; }
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; int cube(int i) {
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; int squared = square(i);
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; return squared*i;
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; }
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;
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; int boo(int, int) {}
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; struct T {
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; void empty();
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; };
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; void T::empty() {}
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; Following variables/arguments/members should be counted:
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; - GlobalConst,
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; - Global,
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; - s, s.constant,
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; - square::i,
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; - cube::i, cube::squared
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; - boo::1, boo::2
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; - this in T::empty()
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; Skipped entities:
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; - declaration of test::a,
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; - non-constant member S:fn,
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; - arguments of S:fn.
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; CHECK: "#unique source variables": 10,
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; +1 extra inline i.
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; CHECK: "#source variables": 11,
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; -1 square::i
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; CHECK: "#source variables with location": 10,
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; CHECK: "sum_all_local_vars(#bytes in parent scope)": [[BYTES:[0-9]+]]
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; Because of the dbg.value in the middle of the function, the pc range coverage
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; must be below 100%.
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; CHECK-NOT: "sum_all_local_vars(#bytes in parent scope covered by DW_AT_location)": 0,
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; CHECK-NOT: "sum_all_local_vars(#bytes in parent scope covered by DW_AT_location)": [[BYTES]]
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; CHECK: "sum_all_local_vars(#bytes in parent scope covered by DW_AT_location)":
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; CHECK: "#bytes within functions": [[FUNCSIZE:[0-9]+]]
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; CHECK: "#bytes within inlined functions": [[INLINESIZE:[0-9]+]]
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; CHECK: "#bytes in __debug_info": 459,
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; CHECK-NEXT: "#bytes in __debug_loc": 35,
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; CHECK-NEXT: "#bytes in __apple_names": 348,
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; CHECK-NEXT: "#bytes in __apple_types": 133,
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; CHECK-NEXT: "#bytes in __debug_abbrev": 384,
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; CHECK-NEXT: "#bytes in __apple_namespac": 60,
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; CHECK-NEXT: "#bytes in __debug_line": 126,
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; CHECK-NEXT: "#bytes in __debug_str": 231,
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; CHECK-NEXT: "#bytes in __apple_objc": 36,
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; ModuleID = '/tmp/quality.cpp'
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source_filename = "/tmp/quality.cpp"
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.12.0"
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%struct.S = type { i8 (i32)* }
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@GlobalConst = global i32 42, align 4, !dbg !0
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@Global = global i32 0, align 4, !dbg !6
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@s = global %struct.S zeroinitializer, align 1, !dbg !9
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; Function Attrs: alwaysinline nounwind ssp uwtable
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define i32 @_Z6squarei(i32 %i) #0 !dbg !20 {
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entry:
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%i.addr = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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; Modified to loose debug info for i here.
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call void @llvm.dbg.declare(metadata i32* undef, metadata !23, metadata !24), !dbg !25
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%0 = load i32, i32* %i.addr, align 4, !dbg !26
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%1 = load i32, i32* %i.addr, align 4, !dbg !27
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%mul = mul nsw i32 %0, %1, !dbg !28
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ret i32 %mul, !dbg !29
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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; Function Attrs: noinline nounwind optnone ssp uwtable
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define i32 @_Z4cubei(i32 %i) #2 !dbg !30 {
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entry:
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%i.addr.i = alloca i32, align 4
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call void @llvm.dbg.declare(metadata i32* %i.addr.i, metadata !23, metadata !24), !dbg !31
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%i.addr = alloca i32, align 4
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%squared = alloca i32, align 4
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store i32 %i, i32* %i.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !33, metadata !24), !dbg !34
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%0 = load i32, i32* %i.addr, align 4, !dbg !37
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store i32 %0, i32* %i.addr.i, align 4
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%1 = load i32, i32* %i.addr.i, align 4, !dbg !38
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%2 = load i32, i32* %i.addr.i, align 4, !dbg !39
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%mul.i = mul nsw i32 %1, %2, !dbg !40
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; Modified to cover only about 50% of the lexical scope.
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call void @llvm.dbg.value(metadata i32 %mul.i, metadata !35, metadata !24), !dbg !36
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store i32 %mul.i, i32* %squared, align 4, !dbg !36
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%3 = load i32, i32* %squared, align 4, !dbg !41
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call void @llvm.dbg.value(metadata i32 %3, metadata !35, metadata !24), !dbg !36
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%4 = load i32, i32* %i.addr, align 4, !dbg !42
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%mul = mul nsw i32 %3, %4, !dbg !43
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ret i32 %mul, !dbg !44
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}
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; Function Attrs: noinline optnone uwtable
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define dso_local i32 @_Z3booii(i32 %0, i32 %1) !dbg !52 {
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entry:
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%.addr = alloca i32, align 4
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%.addr1 = alloca i32, align 4
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store i32 %0, i32* %.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %.addr, metadata !55, metadata !DIExpression()), !dbg !56
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store i32 %1, i32* %.addr1, align 4
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call void @llvm.dbg.declare(metadata i32* %.addr1, metadata !57, metadata !DIExpression()), !dbg !58
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ret i32 0, !dbg !58
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}
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%struct.T = type { i8 }
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define void @_ZN1T5emptyEv(%struct.T* %this) #2 !dbg !59 {
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entry:
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%this.addr = alloca %struct.T*, align 8
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store %struct.T* %this, %struct.T** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %struct.T** %this.addr, metadata !67, metadata !DIExpression()), !dbg !69
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%this1 = load %struct.T*, %struct.T** %this.addr, align 8
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ret void, !dbg !70
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}
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attributes #0 = { alwaysinline nounwind ssp uwtable }
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attributes #1 = { nounwind readnone speculatable }
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attributes #2 = { noinline nounwind optnone ssp uwtable }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!15, !16, !17, !18}
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!llvm.ident = !{!19}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "GlobalConst", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 6.0.0 (trunk 310529) (llvm/trunk 310534)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, imports: !48, globals: !5)
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!3 = !DIFile(filename: "/tmp/quality.cpp", directory: "/Volumes/Data/llvm")
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!4 = !{}
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!5 = !{!0, !6, !9}
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!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
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!7 = distinct !DIGlobalVariable(name: "Global", scope: !2, file: !3, line: 2, type: !8, isLocal: false, isDefinition: true)
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
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!10 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 6, type: !11, isLocal: false, isDefinition: true)
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!11 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 4, size: 8, elements: !12, identifier: "_ZTS1S")
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!12 = !{!13, !45}
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!13 = !DIDerivedType(tag: DW_TAG_member, name: "constant", scope: !11, file: !3, line: 5, baseType: !14, flags: DIFlagStaticMember, extraData: i32 24)
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!14 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8)
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!15 = !{i32 2, !"Dwarf Version", i32 4}
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!16 = !{i32 2, !"Debug Info Version", i32 3}
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!17 = !{i32 1, !"wchar_size", i32 4}
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!18 = !{i32 7, !"PIC Level", i32 2}
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!19 = !{!"clang version 6.0.0 (trunk 310529) (llvm/trunk 310534)"}
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!20 = distinct !DISubprogram(name: "square", linkageName: "_Z6squarei", scope: !3, file: !3, line: 8, type: !21, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
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!21 = !DISubroutineType(types: !22)
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!22 = !{!8, !8}
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!23 = !DILocalVariable(name: "i", arg: 1, scope: !20, file: !3, line: 8, type: !8)
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!24 = !DIExpression()
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!25 = !DILocation(line: 8, column: 47, scope: !20)
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!26 = !DILocation(line: 8, column: 59, scope: !20)
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!27 = !DILocation(line: 8, column: 63, scope: !20)
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!28 = !DILocation(line: 8, column: 61, scope: !20)
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!29 = !DILocation(line: 8, column: 52, scope: !20)
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!30 = distinct !DISubprogram(name: "cube", linkageName: "_Z4cubei", scope: !3, file: !3, line: 9, type: !21, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: false, unit: !2, retainedNodes: !4)
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!31 = !DILocation(line: 8, column: 47, scope: !20, inlinedAt: !32)
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!32 = distinct !DILocation(line: 10, column: 17, scope: !30)
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!33 = !DILocalVariable(name: "i", arg: 1, scope: !30, file: !3, line: 9, type: !8)
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!34 = !DILocation(line: 9, column: 14, scope: !30)
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!35 = !DILocalVariable(name: "squared", scope: !30, file: !3, line: 10, type: !8)
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!36 = !DILocation(line: 10, column: 7, scope: !30)
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!37 = !DILocation(line: 10, column: 24, scope: !30)
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!38 = !DILocation(line: 8, column: 59, scope: !20, inlinedAt: !32)
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!39 = !DILocation(line: 8, column: 63, scope: !20, inlinedAt: !32)
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!40 = !DILocation(line: 8, column: 61, scope: !20, inlinedAt: !32)
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!41 = !DILocation(line: 11, column: 10, scope: !30)
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!42 = !DILocation(line: 11, column: 18, scope: !30)
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!43 = !DILocation(line: 11, column: 17, scope: !30)
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!44 = !DILocation(line: 11, column: 3, scope: !30)
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!45 = !DIDerivedType(tag: DW_TAG_member, name: "fn", scope: !11, file: !3, line: 5, baseType: !46, size: 64)
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!46 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !47, size: 64)
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!47 = !DISubroutineType(types: !22)
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!48 = !{!49}
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!49 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !2, entity: !50, file: !3, line: 2)
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!50 = !DIGlobalVariable(name: "a", linkageName: "_ZN4test1aE", scope: !51, file: !3, line: 2, type: !8, isLocal: false, isDefinition: false)
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!51 = !DINamespace(name: "test", scope: !2)
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!52 = distinct !DISubprogram(name: "boo", linkageName: "_Z3booii", scope: !3, file: !3, line: 10, type: !53, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !4)
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!53 = !DISubroutineType(types: !54)
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!54 = !{!8, !8, !8}
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!55 = !DILocalVariable(arg: 1, scope: !52, file: !3, line: 10, type: !8)
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!56 = !DILocation(line: 10, column: 12, scope: !52)
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!57 = !DILocalVariable(arg: 2, scope: !52, file: !3, line: 10, type: !8)
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!58 = !DILocation(line: 10, column: 17, scope: !52)
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!59 = distinct !DISubprogram(name: "empty", linkageName: "_ZN1T5emptyEv", scope: !60, file: !3, line: 25, type: !63, scopeLine: 25, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !2, declaration: !62, retainedNodes: !4)
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!60 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "T", file: !3, line: 22, size: 8, flags: DIFlagTypePassByValue, elements: !61, identifier: "_ZTS1T")
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!61 = !{!62}
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!62 = !DISubprogram(name: "empty", linkageName: "_ZN1T5emptyEv", scope: !60, file: !3, line: 23, type: !63, scopeLine: 23, flags: DIFlagPrototyped, spFlags: 0)
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!63 = !DISubroutineType(types: !64)
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!64 = !{!65, !66}
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!65 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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!66 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !60, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!67 = !DILocalVariable(name: "this", arg: 1, scope: !59, type: !68, flags: DIFlagArtificial | DIFlagObjectPointer)
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!68 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !60, size: 64)
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!69 = !DILocation(line: 0, scope: !59)
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!70 = !DILocation(line: 25, column: 19, scope: !59)
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