1; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 < %s | FileCheck %s --check-prefix=ASM 2; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 < %s -filetype=obj | llvm-readobj --codeview - | FileCheck %s --check-prefix=OBJ 3 4; This C++ source should run and you should be able to step through the volatile 5; modifications to x in windbg. 6; # 1 "t.cpp" 2 7; volatile int x; 8; 9; # 1 "./t.h" 1 10; inline void f() { 11; x += 3; 12; } 13; # 3 "t.cpp" 2 14; inline __forceinline void g() { 15; x += 2; 16; f(); 17; x += 2; 18; } 19; int main() { 20; x += 1; 21; g(); 22; x += 1; 23; return x; 24; } 25 26; ASM: _main: # @main 27; ASM: Lfunc_begin0: 28; ASM: .cv_func_id 0 29; ASM: # %bb.0: # %entry 30; ASM: .cv_file 1 "D:\\src\\llvm\\build\\t.cpp" 31; ASM: .cv_loc 0 1 9 5 # t.cpp:9:5 32; ASM: incl "?x@@3HC" 33; ASM: .cv_inline_site_id 1 within 0 inlined_at 1 10 3 34; ASM: .cv_loc 1 1 4 5 # t.cpp:4:5 35; ASM: addl $2, "?x@@3HC" 36; ASM: .cv_file 2 "D:\\src\\llvm\\build\\t.h" 37; ASM: .cv_inline_site_id 2 within 1 inlined_at 1 5 3 38; ASM: .cv_loc 2 2 2 5 # ./t.h:2:5 39; ASM: addl $3, "?x@@3HC" 40; ASM: .cv_loc 1 1 6 5 # t.cpp:6:5 41; ASM: addl $2, "?x@@3HC" 42; ASM: .cv_loc 0 1 11 5 # t.cpp:11:5 43; ASM: incl "?x@@3HC" 44; ASM: .cv_loc 0 1 12 10 # t.cpp:12:10 45; ASM: movl "?x@@3HC", %eax 46; ASM: .cv_loc 0 1 12 3 # t.cpp:12:3 47; ASM: retl 48 49; OBJ: Subsection [ 50; OBJ: SubSectionType: InlineeLines (0xF6) 51; OBJ: SubSectionSize: 0x1C 52; OBJ: InlineeSourceLine { 53; OBJ: Inlinee: g (0x1002) 54; OBJ: FileID: D:\src\llvm\build\t.cpp (0x0) 55; OBJ: SourceLineNum: 3 56; OBJ: } 57; OBJ: InlineeSourceLine { 58; OBJ: Inlinee: f (0x1003) 59; OBJ: FileID: D:\src\llvm\build\t.h (0x8) 60; OBJ: SourceLineNum: 1 61; OBJ: } 62; OBJ: ] 63 64; OBJ: Subsection [ 65; OBJ: SubSectionType: Symbols (0xF1) 66; OBJ: {{.*}}Proc{{.*}}Sym { 67; OBJ: Kind: S_GPROC32_ID (0x1147) 68; OBJ: FunctionType: main (0x1005) 69; OBJ: CodeOffset: _main+0x0 70; OBJ: Segment: 0x0 71; OBJ: Flags [ (0x80) 72; OBJ: HasOptimizedDebugInfo (0x80) 73; OBJ: ] 74; OBJ: DisplayName: main 75; OBJ: LinkageName: _main 76; OBJ: } 77 78; OBJ: InlineesSym { 79; OBJ-NEXT: Kind: S_INLINEES (0x1168) 80; OBJ-NEXT: Inlinees [ 81; OBJ-NEXT: FuncID: g (0x1002) 82; OBJ-NEXT: ] 83; OBJ-NEXT: } 84 85; Previously, g's InlineSiteSym referenced t.h, which was wasteful. 86; OBJ: InlineSiteSym { 87; OBJ: Inlinee: g (0x1002) 88; OBJ: BinaryAnnotations [ 89; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x6, LineOffset: 1} 90; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1} 91; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1} 92; OBJ-NEXT: ChangeCodeLength: 0x7 93; OBJ-NEXT: ] 94; OBJ: } 95 96; OBJ: InlineSiteSym { 97; OBJ: Inlinee: f (0x1003) 98; OBJ: BinaryAnnotations [ 99; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0xD, LineOffset: 1} 100; OBJ-NEXT: ChangeCodeLength: 0x7 101; OBJ-NEXT:] 102; OBJ: } 103; OBJ: InlineSiteEnd { 104; OBJ: } 105; OBJ: InlineSiteEnd { 106; OBJ: } 107; OBJ: ProcEnd { 108; OBJ: } 109; OBJ: ] 110 111; ModuleID = 't.cpp' 112source_filename = "t.cpp" 113target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 114target triple = "x86_64-pc-windows-msvc19.0.24210" 115 116@"\01?x@@3HC" = global i32 0, align 4, !dbg !0 117 118; Function Attrs: norecurse nounwind uwtable 119define i32 @main() local_unnamed_addr #0 !dbg !12 { 120entry: 121 %0 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !15, !tbaa !16 122 %add = add nsw i32 %0, 1, !dbg !15 123 store volatile i32 %add, ptr @"\01?x@@3HC", align 4, !dbg !15, !tbaa !16 124 %1 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !20, !tbaa !16 125 %add.i = add nsw i32 %1, 2, !dbg !20 126 store volatile i32 %add.i, ptr @"\01?x@@3HC", align 4, !dbg !20, !tbaa !16 127 %2 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !25, !tbaa !16 128 %add.i.i = add nsw i32 %2, 3, !dbg !25 129 store volatile i32 %add.i.i, ptr @"\01?x@@3HC", align 4, !dbg !25, !tbaa !16 130 %3 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !29, !tbaa !16 131 %add1.i = add nsw i32 %3, 2, !dbg !29 132 store volatile i32 %add1.i, ptr @"\01?x@@3HC", align 4, !dbg !29, !tbaa !16 133 %4 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !30, !tbaa !16 134 %add1 = add nsw i32 %4, 1, !dbg !30 135 store volatile i32 %add1, ptr @"\01?x@@3HC", align 4, !dbg !30, !tbaa !16 136 %5 = load volatile i32, ptr @"\01?x@@3HC", align 4, !dbg !31, !tbaa !16 137 ret i32 %5, !dbg !32 138} 139 140attributes #0 = { norecurse nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 141 142!llvm.dbg.cu = !{!2} 143!llvm.module.flags = !{!8, !9, !10} 144!llvm.ident = !{!11} 145 146!0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 147!1 = !DIGlobalVariable(name: "x", linkageName: "\01?x@@3HC", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) 148!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 3.9.0 (trunk 275430) (llvm/trunk 275433)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5) 149!3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") 150!4 = !{} 151!5 = !{!0} 152!6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) 153!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 154!8 = !{i32 2, !"CodeView", i32 1} 155!9 = !{i32 2, !"Debug Info Version", i32 3} 156!10 = !{i32 1, !"PIC Level", i32 2} 157!11 = !{!"clang version 3.9.0 (trunk 275430) (llvm/trunk 275433)"} 158!12 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 8, type: !13, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !4) 159!13 = !DISubroutineType(types: !14) 160!14 = !{!7} 161!15 = !DILocation(line: 9, column: 5, scope: !12) 162!16 = !{!17, !17, i64 0} 163!17 = !{!"int", !18, i64 0} 164!18 = !{!"omnipotent char", !19, i64 0} 165!19 = !{!"Simple C++ TBAA"} 166!20 = !DILocation(line: 4, column: 5, scope: !21, inlinedAt: !24) 167!21 = distinct !DISubprogram(name: "g", linkageName: "\01?g@@YAXXZ", scope: !3, file: !3, line: 3, type: !22, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !4) 168!22 = !DISubroutineType(types: !23) 169!23 = !{null} 170!24 = distinct !DILocation(line: 10, column: 3, scope: !12) 171!25 = !DILocation(line: 2, column: 5, scope: !26, inlinedAt: !28) 172!26 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YAXXZ", scope: !27, file: !27, line: 1, type: !22, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !4) 173!27 = !DIFile(filename: "./t.h", directory: "D:\5Csrc\5Cllvm\5Cbuild") 174!28 = distinct !DILocation(line: 5, column: 3, scope: !21, inlinedAt: !24) 175!29 = !DILocation(line: 6, column: 5, scope: !21, inlinedAt: !24) 176!30 = !DILocation(line: 11, column: 5, scope: !12) 177!31 = !DILocation(line: 12, column: 10, scope: !12) 178!32 = !DILocation(line: 12, column: 3, scope: !12) 179 180