1; REQUIRES: object-emission 2 3; RUN: %llc_dwarf -O0 -filetype=obj -dwarf-linkage-names=All < %s | llvm-dwarfdump -debug-dump=info - | FileCheck -implicit-check-not=DW_TAG %s 4; RUN: %llc_dwarf -dwarf-accel-tables=Enable -dwarf-linkage-names=All -O0 -filetype=obj < %s | llvm-dwarfdump - | FileCheck --check-prefix=CHECK-ACCEL --check-prefix=CHECK %s 5 6; Build from source: 7; $ clang++ a.cpp b.cpp -g -c -emit-llvm 8; $ llvm-link a.bc b.bc -o ab.bc 9; $ opt -inline ab.bc -o ab-opt.bc 10; $ cat a.cpp 11; extern int i; 12; int func(int); 13; int main() { 14; return func(i); 15; } 16; $ cat b.cpp 17; int __attribute__((always_inline)) func(int x) { 18; return x * 2; 19; } 20 21; Ensure that func inlined into main is described and references the abstract 22; definition in b.cpp's CU. 23 24; CHECK: DW_TAG_compile_unit 25; CHECK: DW_AT_name {{.*}} "a.cpp" 26; CHECK: DW_TAG_subprogram 27; CHECK: DW_AT_type [DW_FORM_ref_addr] (0x00000000[[INT:.*]]) 28; CHECK: 0x[[INLINED:[0-9a-f]*]]:{{.*}}DW_TAG_inlined_subroutine 29; CHECK: DW_AT_abstract_origin {{.*}}[[ABS_FUNC:........]] "_Z4funci" 30; CHECK: DW_TAG_formal_parameter 31; CHECK: DW_AT_abstract_origin {{.*}}[[ABS_VAR:........]] "x" 32 33; Check the abstract definition is in the 'b.cpp' CU and doesn't contain any 34; concrete information (address range or variable location) 35; CHECK: DW_TAG_compile_unit 36; CHECK: DW_AT_name {{.*}} "b.cpp" 37; CHECK: 0x[[ABS_FUNC]]: DW_TAG_subprogram 38; CHECK-NOT: DW_AT_low_pc 39; CHECK: 0x[[ABS_VAR]]: DW_TAG_formal_parameter 40; CHECK-NOT: DW_AT_location 41; CHECK: DW_AT_type [DW_FORM_ref4] {{.*}} {0x[[INT]]} 42; CHECK-NOT: DW_AT_location 43 44; CHECK: 0x[[INT]]: DW_TAG_base_type 45; CHECK: DW_AT_name {{.*}} "int" 46 47; Check the concrete out of line definition references the abstract and 48; provides the address range and variable location 49; CHECK: 0x[[FUNC:[0-9a-f]*]]{{.*}}DW_TAG_subprogram 50; CHECK: DW_AT_low_pc 51; CHECK: DW_AT_abstract_origin {{.*}} {0x[[ABS_FUNC]]} "_Z4funci" 52; CHECK: DW_TAG_formal_parameter 53; CHECK: DW_AT_location 54; CHECK: DW_AT_abstract_origin {{.*}} {0x[[ABS_VAR]]} "x" 55 56; Check that both the inline and the non out of line version of func are 57; correctly referenced in the accelerator table. Before r221837, the one 58; in the second compilation unit had a wrong offset 59; CHECK-ACCEL: .apple_names contents: 60; CHECK-ACCEL: Name{{.*}}"func" 61; CHECK-ACCEL-NOT: Name 62; CHECK-ACCEL: Atom[0]{{.*}}[[INLINED]] 63; CHECK-ACCEL-NOT: Name 64; CHECK-ACCEL: Atom[0]{{.*}}[[FUNC]] 65 66@i = external global i32 67 68; Function Attrs: uwtable 69define i32 @main() #0 !dbg !4 { 70entry: 71 %x.addr.i = alloca i32, align 4 72 %retval = alloca i32, align 4 73 store i32 0, i32* %retval 74 %0 = load i32, i32* @i, align 4, !dbg !19 75 %1 = bitcast i32* %x.addr.i to i8* 76 call void @llvm.lifetime.start(i64 4, i8* %1) 77 store i32 %0, i32* %x.addr.i, align 4 78 call void @llvm.dbg.declare(metadata i32* %x.addr.i, metadata !120, metadata !DIExpression()), !dbg !21 79 %2 = load i32, i32* %x.addr.i, align 4, !dbg !22 80 %mul.i = mul nsw i32 %2, 2, !dbg !22 81 %3 = bitcast i32* %x.addr.i to i8*, !dbg !22 82 call void @llvm.lifetime.end(i64 4, i8* %3), !dbg !22 83 ret i32 %mul.i, !dbg !19 84} 85 86; Function Attrs: alwaysinline nounwind uwtable 87define i32 @_Z4funci(i32 %x) #1 !dbg !12 { 88entry: 89 %x.addr = alloca i32, align 4 90 store i32 %x, i32* %x.addr, align 4 91 call void @llvm.dbg.declare(metadata i32* %x.addr, metadata !20, metadata !DIExpression()), !dbg !23 92 %0 = load i32, i32* %x.addr, align 4, !dbg !24 93 %mul = mul nsw i32 %0, 2, !dbg !24 94 ret i32 %mul, !dbg !24 95} 96 97; Function Attrs: nounwind readnone 98declare void @llvm.dbg.declare(metadata, metadata, metadata) #2 99 100; Function Attrs: nounwind 101declare void @llvm.lifetime.start(i64, i8* nocapture) #3 102 103; Function Attrs: nounwind 104declare void @llvm.lifetime.end(i64, i8* nocapture) #3 105 106attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 107attributes #1 = { alwaysinline nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 108attributes #2 = { nounwind readnone } 109attributes #3 = { nounwind } 110 111!llvm.dbg.cu = !{!0, !9} 112!llvm.module.flags = !{!16, !17} 113!llvm.ident = !{!18, !18} 114 115!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 116!1 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo") 117!2 = !{} 118!4 = distinct !DISubprogram(name: "main", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !1, scope: !5, type: !6, variables: !2) 119!5 = !DIFile(filename: "a.cpp", directory: "/tmp/dbginfo") 120!6 = !DISubroutineType(types: !7) 121!7 = !{!8} 122!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 123!9 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 124!10 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo") 125!12 = distinct !DISubprogram(name: "func", linkageName: "_Z4funci", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !9, scopeLine: 1, file: !10, scope: !13, type: !14, variables: !2) 126!13 = !DIFile(filename: "b.cpp", directory: "/tmp/dbginfo") 127!14 = !DISubroutineType(types: !15) 128!15 = !{!8, !8} 129!16 = !{i32 2, !"Dwarf Version", i32 4} 130!17 = !{i32 2, !"Debug Info Version", i32 3} 131!18 = !{!"clang version 3.5.0 "} 132!19 = !DILocation(line: 4, scope: !4) 133!20 = !DILocalVariable(name: "x", line: 1, arg: 1, scope: !12, file: !13, type: !8) 134 135!120 = !DILocalVariable(name: "x", line: 1, arg: 1, scope: !12, file: !13, type: !8) 136 137!21 = !DILocation(line: 1, scope: !12, inlinedAt: !19) 138!22 = !DILocation(line: 2, scope: !12, inlinedAt: !19) 139!23 = !DILocation(line: 1, scope: !12) 140!24 = !DILocation(line: 2, scope: !12) 141 142