1; RUN: opt < %s -always-inline -S | FileCheck %s 2; RUN: opt -passes='always-inline' -S < %s | FileCheck %s 3 4; Original input generated from clang -emit-llvm -S -c -mllvm -disable-llvm-optzns 5; 6; #define CALLS1 f2(); f2(); 7; #define CALLS2 f4(); f4(); 8; void f1(); 9; inline __attribute__((always_inline)) void f2() { 10; f1(); 11; } 12; inline __attribute__((always_inline)) void f3() { 13; CALLS1 14; } 15; inline __attribute__((always_inline)) void f4() { 16; f3(); 17; } 18; void f() { 19; CALLS2 20; } 21 22; There should be unique locations for all 4 of these instructions, correctly 23; describing the inlining that has occurred, even in the face of duplicate call 24; site locations. 25 26; The nomenclature used for the tags here is <function name>[cs<number>] where 27; 'cs' is an abbreviation for 'call site' and the number indicates which call 28; site from within the named function this is. (so, given the above inlining, we 29; should have 4 calls to 'f1', two from the first call to f4 and two from the 30; second call to f4) 31 32; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs1_f2:![0-9]+]] 33; CHECK: call void @_Z2f1v(), !dbg [[fcs1_f4_f3cs2_f2:![0-9]+]] 34; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs1_f2:![0-9]+]] 35; CHECK: call void @_Z2f1v(), !dbg [[fcs2_f4_f3cs2_f2:![0-9]+]] 36 37; CHECK-DAG: [[F:![0-9]+]] = distinct !DISubprogram(name: "f" 38; CHECK-DAG: [[F2:![0-9]+]] = distinct !DISubprogram(name: "f2" 39; CHECK-DAG: [[F3:![0-9]+]] = distinct !DISubprogram(name: "f3" 40; CHECK-DAG: [[F4:![0-9]+]] = distinct !DISubprogram(name: "f4" 41 42; CHECK-DAG: [[fcs1_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs1:![0-9]+]]) 43; CHECK-DAG: [[fcs1_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4:![0-9]+]]) 44; CHECK-DAG: [[fcs1_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs1:![0-9]+]]) 45; CHECK-DAG: [[fcs1]] = {{.*}}, scope: [[F]]) 46; CHECK-DAG: [[fcs1_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs2:![0-9]+]]) 47; CHECK-DAG: [[fcs1_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4]]) 48 49; CHECK-DAG: [[fcs2_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs1:![0-9]+]]) 50; CHECK-DAG: [[fcs2_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4:![0-9]+]]) 51; CHECK-DAG: [[fcs2_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs2:![0-9]+]]) 52; CHECK-DAG: [[fcs2]] = {{.*}}, scope: [[F]]) 53; CHECK-DAG: [[fcs2_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs2:![0-9]+]]) 54; CHECK-DAG: [[fcs2_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4]]) 55 56$_Z2f4v = comdat any 57 58$_Z2f3v = comdat any 59 60$_Z2f2v = comdat any 61 62; Function Attrs: uwtable 63define void @_Z1fv() #0 !dbg !4 { 64entry: 65 call void @_Z2f4v(), !dbg !13 66 call void @_Z2f4v(), !dbg !13 67 ret void, !dbg !14 68} 69 70; Function Attrs: alwaysinline inlinehint uwtable 71define linkonce_odr void @_Z2f4v() #1 comdat !dbg !7 { 72entry: 73 call void @_Z2f3v(), !dbg !15 74 ret void, !dbg !16 75} 76 77; Function Attrs: alwaysinline inlinehint uwtable 78define linkonce_odr void @_Z2f3v() #1 comdat !dbg !8 { 79entry: 80 call void @_Z2f2v(), !dbg !17 81 call void @_Z2f2v(), !dbg !17 82 ret void, !dbg !18 83} 84 85; Function Attrs: alwaysinline inlinehint uwtable 86define linkonce_odr void @_Z2f2v() #1 comdat !dbg !9 { 87entry: 88 call void @_Z2f1v(), !dbg !19 89 ret void, !dbg !20 90} 91 92declare void @_Z2f1v() #2 93 94attributes #0 = { uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 95attributes #1 = { alwaysinline inlinehint uwtable "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 96attributes #2 = { "less-precise-fpmad"="false" "frame-pointer"="all" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 97 98!llvm.dbg.cu = !{!0} 99!llvm.module.flags = !{!10, !11} 100!llvm.ident = !{!12} 101 102!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) 103!1 = !DIFile(filename: "debug-info-duplicate-calls.cpp", directory: "/tmp/dbginfo") 104!2 = !{} 105!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, retainedNodes: !2) 106!5 = !DIFile(filename: "debug-info-duplicate-calls.cpp", directory: "/tmp/dbginfo") 107!6 = !DISubroutineType(types: !2) 108!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, retainedNodes: !2) 109!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, retainedNodes: !2) 110!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, retainedNodes: !2) 111!10 = !{i32 2, !"Dwarf Version", i32 4} 112!11 = !{i32 2, !"Debug Info Version", i32 3} 113!12 = !{!"clang version 3.7.0 (trunk 226474) (llvm/trunk 226478)"} 114!13 = !DILocation(line: 14, column: 3, scope: !4) 115!14 = !DILocation(line: 15, column: 1, scope: !4) 116!15 = !DILocation(line: 11, column: 3, scope: !7) 117!16 = !DILocation(line: 12, column: 1, scope: !7) 118!17 = !DILocation(line: 8, column: 3, scope: !8) 119!18 = !DILocation(line: 9, column: 1, scope: !8) 120!19 = !DILocation(line: 5, column: 3, scope: !9) 121!20 = !DILocation(line: 6, column: 1, scope: !9) 122