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: [[fcs1_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs1:![0-9]+]]) 42 ; CHECK: [[fcs1_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4:![0-9]+]]) 43 ; CHECK: [[fcs1_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs1:![0-9]+]]) 44 ; CHECK: [[fcs1]] = {{.*}}, scope: [[F]]) 45 ; CHECK: [[fcs1_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs1_f4_f3cs2:![0-9]+]]) 46 ; CHECK: [[fcs1_f4_f3cs2]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs1_f4]]) 47 48 ; CHECK: [[fcs2_f4_f3cs1_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs1:![0-9]+]]) 49 ; CHECK: [[fcs2_f4_f3cs1]] = {{.*}}, scope: [[F3]], inlinedAt: [[fcs2_f4:![0-9]+]]) 50 ; CHECK: [[fcs2_f4]] = {{.*}}, scope: [[F4]], inlinedAt: [[fcs2:![0-9]+]]) 51 ; CHECK: [[fcs2]] = {{.*}}, scope: [[F]]) 52 ; CHECK: [[fcs2_f4_f3cs2_f2]] = {{.*}}, scope: [[F2]], inlinedAt: [[fcs2_f4_f3cs2:![0-9]+]]) 53 ; CHECK: [[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 62 define void @_Z1fv() #0 !dbg !4 { 63 entry: 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 70 define linkonce_odr void @_Z2f4v() #1 comdat !dbg !7 { 71 entry: 72 call void @_Z2f3v(), !dbg !15 73 ret void, !dbg !16 74 } 75 76 ; Function Attrs: alwaysinline inlinehint uwtable 77 define linkonce_odr void @_Z2f3v() #1 comdat !dbg !8 { 78 entry: 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 85 define linkonce_odr void @_Z2f2v() #1 comdat !dbg !9 { 86 entry: 87 call void @_Z2f1v(), !dbg !19 88 ret void, !dbg !20 89 } 90 91 declare void @_Z2f1v() #2 92 93 attributes #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" } 94 attributes #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" } 95 attributes #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: 2, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 102 !1 = !DIFile(filename: "debug-info-duplicate-calls.cpp", directory: "/tmp/dbginfo") 103 !2 = !{} 104 !3 = !{!4, !7, !8, !9} 105 !4 = distinct !DISubprogram(name: "f", line: 13, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 13, file: !1, scope: !5, type: !6, variables: !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, scopeLine: 10, file: !1, scope: !5, type: !6, variables: !2) 109 !8 = distinct !DISubprogram(name: "f3", line: 7, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 7, file: !1, scope: !5, type: !6, variables: !2) 110 !9 = distinct !DISubprogram(name: "f2", line: 4, isLocal: false, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 4, file: !1, scope: !5, type: !6, variables: !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
