1; RUN: opt < %s -always-inline -S | FileCheck %s 2 3; Original input generated from clang -emit-llvm -S -c -mllvm -disable-llvm-optzns 4; 5; #define CALLS1 f2(); f2(); 6; #define CALLS2 f4(); f4(); 7; void f1(); 8; inline __attribute__((always_inline)) void f2() { 9; f1(); 10; } 11; inline __attribute__((always_inline)) void f3() { 12; CALLS1 13; } 14; inline __attribute__((always_inline)) void f4() { 15; f3(); 16; } 17; void f() { 18; CALLS2 19; } 20 21; There should be unique locations for all 4 of these instructions, correctly 22; describing the inlining that has occurred, even in the face of duplicate call 23; site locations. 24 25; The nomenclature used for the tags here is <function name>[cs<number>] where 26; 'cs' is an abbreviation for 'call site' and the number indicates which call 27; site from within the named function this is. (so, given the above inlining, we 28; should have 4 calls to 'f1', two from the first call to f4 and two from the 29; second call to f4) 30 31; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs1_f2:![0-9]+]] 32; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs2_f2:![0-9]+]] 33; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs1_f2:![0-9]+]] 34; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs2_f2:![0-9]+]] 35 36; CHECK-DAG: [[F:![0-9]+]] = distinct !DISubprogram(name: "f" 37; CHECK-DAG: [[F2:![0-9]+]] = distinct !DISubprogram(name: "f2" 38; CHECK-DAG: [[F3:![0-9]+]] = distinct !DISubprogram(name: "f3" 39; CHECK-DAG: [[F4:![0-9]+]] = distinct !DISubprogram(name: "f4" 40 41; CHECK-DAG: [[fcs1_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs1:![0-9]+]]) 42; CHECK-DAG: [[fcs1_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4:![0-9]+]]) 43; CHECK-DAG: [[fcs1_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs1:![0-9]+]]) 44; CHECK-DAG: [[fcs1]] = {{.*}}, scope: [[F]]) 45; CHECK-DAG: [[fcs1_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs2:![0-9]+]]) 46; CHECK-DAG: [[fcs1_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4]]) 47 48; CHECK-DAG: [[fcs2_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs1:![0-9]+]]) 49; CHECK-DAG: [[fcs2_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4:![0-9]+]]) 50; CHECK-DAG: [[fcs2_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs2:![0-9]+]]) 51; CHECK-DAG: [[fcs2]] = {{.*}}, scope: [[F]]) 52; CHECK-DAG: [[fcs2_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs2:![0-9]+]]) 53; CHECK-DAG: [[fcs2_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4]]) 54 55$_Z2f4v = comdat any 56 57$_Z2f3v = comdat any 58 59$_Z2f2v = comdat any 60 61; Function Attrs: uwtable 62define void @_Z1fv() #0 !dbg !4 { 63entry: 64 call void @_Z2f4v(), !dbg !13 65 call void @_Z2f4v(), !dbg !13 66 ret void, !dbg !14 67} 68 69; Function Attrs: alwaysinline inlinehint uwtable 70define linkonce_odr void @_Z2f4v() #1 comdat !dbg !7 { 71entry: 72 call void @_Z2f3v(), !dbg !15 73 ret void, !dbg !16 74} 75 76; Function Attrs: alwaysinline inlinehint uwtable 77define linkonce_odr void @_Z2f3v() #1 comdat !dbg !8 { 78entry: 79 call void @_Z2f2v(), !dbg !17 80 call void @_Z2f2v(), !dbg !17 81 ret void, !dbg !18 82} 83 84; Function Attrs: alwaysinline inlinehint uwtable 85define linkonce_odr void @_Z2f2v() #1 comdat !dbg !9 { 86entry: 87 call void @_Z2f1v(), !dbg !19 88 ret void, !dbg !20 89} 90 91declare void @_Z2f1v() #2 92 93attributes #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" } 94attributes #1 = { alwaysinline inlinehint 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" } 95attributes #2 = { "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" } 96 97!llvm.dbg.cu = !{!0} 98!llvm.module.flags = !{!10, !11} 99!llvm.ident = !{!12} 100 101!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.7.0 (trunk 226474) (llvm/trunk 226478)", isOptimized: false, emissionKind: LineTablesOnly, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2) 102!1 = !DIFile(filename: "debug-info-duplicate-calls.cpp", directory: "/tmp/dbginfo") 103!2 = !{} 104!4 = distinct !DISubprogram(name: "f", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 13, file: !1, scope: !5, type: !6, variables: !2) 105!5 = !DIFile(filename: "debug-info-duplicate-calls.cpp", directory: "/tmp/dbginfo") 106!6 = !DISubroutineType(types: !2) 107!7 = distinct !DISubprogram(name: "f4", line: 10, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 10, file: !1, scope: !5, type: !6, variables: !2) 108!8 = distinct !DISubprogram(name: "f3", line: 7, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !2) 109!9 = distinct !DISubprogram(name: "f2", line: 4, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 4, file: !1, scope: !5, type: !6, variables: !2) 110!10 = !{i32 2, !"Dwarf Version", i32 4} 111!11 = !{i32 2, !"Debug Info Version", i32 3} 112!12 = !{!"clang version 3.7.0 (trunk 226474) (llvm/trunk 226478)"} 113!13 = !DILocation(line: 14, column: 3, scope: !4) 114!14 = !DILocation(line: 15, column: 1, scope: !4) 115!15 = !DILocation(line: 11, column: 3, scope: !7) 116!16 = !DILocation(line: 12, column: 1, scope: !7) 117!17 = !DILocation(line: 8, column: 3, scope: !8) 118!18 = !DILocation(line: 9, column: 1, scope: !8) 119!19 = !DILocation(line: 5, column: 3, scope: !9) 120!20 = !DILocation(line: 6, column: 1, scope: !9) 121