; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 < %s | FileCheck %s --check-prefix=ASM ; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 < %s -filetype=obj | llvm-readobj -codeview | FileCheck %s --check-prefix=OBJ ; This C++ source should run and you should be able to step through the volatile ; modifications to x in windbg. ; # 1 "t.cpp" 2 ; volatile int x; ; ; # 1 "./t.h" 1 ; inline void f() { ; x += 3; ; } ; # 3 "t.cpp" 2 ; inline __forceinline void g() { ; x += 2; ; f(); ; x += 2; ; } ; int main() { ; x += 1; ; g(); ; x += 1; ; return x; ; } ; ASM: _main: # @main ; ASM: Lfunc_begin0: ; ASM: .cv_func_id 0 ; ASM: # %bb.0: # %entry ; ASM: .cv_file 1 "D:\\src\\llvm\\build\\t.cpp" ; ASM: .cv_loc 0 1 9 5 is_stmt 0 # t.cpp:9:5 ; ASM: incl "?x@@3HC" ; ASM: .cv_inline_site_id 1 within 0 inlined_at 1 10 3 ; ASM: .cv_loc 1 1 4 5 # t.cpp:4:5 ; ASM: addl $2, "?x@@3HC" ; ASM: .cv_file 2 "D:\\src\\llvm\\build\\t.h" ; ASM: .cv_inline_site_id 2 within 1 inlined_at 1 5 3 ; ASM: .cv_loc 2 2 2 5 # ./t.h:2:5 ; ASM: addl $3, "?x@@3HC" ; ASM: .cv_loc 1 1 6 5 # t.cpp:6:5 ; ASM: addl $2, "?x@@3HC" ; ASM: .cv_loc 0 1 11 5 # t.cpp:11:5 ; ASM: incl "?x@@3HC" ; ASM: .cv_loc 0 1 12 10 # t.cpp:12:10 ; ASM: movl "?x@@3HC", %eax ; ASM: .cv_loc 0 1 12 3 # t.cpp:12:3 ; ASM: retl ; OBJ: Subsection [ ; OBJ: SubSectionType: InlineeLines (0xF6) ; OBJ: SubSectionSize: 0x1C ; OBJ: InlineeSourceLine { ; OBJ: Inlinee: g (0x1002) ; OBJ: FileID: D:\src\llvm\build\t.cpp (0x0) ; OBJ: SourceLineNum: 3 ; OBJ: } ; OBJ: InlineeSourceLine { ; OBJ: Inlinee: f (0x1003) ; OBJ: FileID: D:\src\llvm\build\t.h (0x8) ; OBJ: SourceLineNum: 1 ; OBJ: } ; OBJ: ] ; OBJ: Subsection [ ; OBJ: SubSectionType: Symbols (0xF1) ; OBJ: {{.*}}Proc{{.*}}Sym { ; OBJ: Kind: S_GPROC32_ID (0x1147) ; OBJ: FunctionType: main (0x1005) ; OBJ: CodeOffset: _main+0x0 ; OBJ: Segment: 0x0 ; OBJ: Flags [ (0x0) ; OBJ: ] ; OBJ: DisplayName: main ; OBJ: LinkageName: _main ; OBJ: } ; Previously, g's InlineSiteSym referenced t.h, which was wasteful. ; OBJ: InlineSiteSym { ; OBJ: Inlinee: g (0x1002) ; OBJ: BinaryAnnotations [ ; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x6, LineOffset: 1} ; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1} ; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0x7, LineOffset: 1} ; OBJ-NEXT: ChangeCodeLength: 0x7 ; OBJ-NEXT: ] ; OBJ: } ; OBJ: InlineSiteSym { ; OBJ: Inlinee: f (0x1003) ; OBJ: BinaryAnnotations [ ; OBJ-NEXT: ChangeCodeOffsetAndLineOffset: {CodeOffset: 0xD, LineOffset: 1} ; OBJ-NEXT: ChangeCodeLength: 0x7 ; OBJ-NEXT:] ; OBJ: } ; OBJ: InlineSiteEnd { ; OBJ: } ; OBJ: InlineSiteEnd { ; OBJ: } ; OBJ: ProcEnd { ; OBJ: } ; OBJ: ] ; ModuleID = 't.cpp' source_filename = "t.cpp" target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-pc-windows-msvc19.0.24210" @"\01?x@@3HC" = global i32 0, align 4, !dbg !0 ; Function Attrs: norecurse nounwind uwtable define i32 @main() local_unnamed_addr #0 !dbg !12 { entry: %0 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !15, !tbaa !16 %add = add nsw i32 %0, 1, !dbg !15 store volatile i32 %add, i32* @"\01?x@@3HC", align 4, !dbg !15, !tbaa !16 %1 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !20, !tbaa !16 %add.i = add nsw i32 %1, 2, !dbg !20 store volatile i32 %add.i, i32* @"\01?x@@3HC", align 4, !dbg !20, !tbaa !16 %2 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !25, !tbaa !16 %add.i.i = add nsw i32 %2, 3, !dbg !25 store volatile i32 %add.i.i, i32* @"\01?x@@3HC", align 4, !dbg !25, !tbaa !16 %3 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !29, !tbaa !16 %add1.i = add nsw i32 %3, 2, !dbg !29 store volatile i32 %add1.i, i32* @"\01?x@@3HC", align 4, !dbg !29, !tbaa !16 %4 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !30, !tbaa !16 %add1 = add nsw i32 %4, 1, !dbg !30 store volatile i32 %add1, i32* @"\01?x@@3HC", align 4, !dbg !30, !tbaa !16 %5 = load volatile i32, i32* @"\01?x@@3HC", align 4, !dbg !31, !tbaa !16 ret i32 %5, !dbg !32 } attributes #0 = { norecurse nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "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-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } !llvm.dbg.cu = !{!2} !llvm.module.flags = !{!8, !9, !10} !llvm.ident = !{!11} !0 = distinct !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) !1 = !DIGlobalVariable(name: "x", linkageName: "\01?x@@3HC", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true) !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) !3 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") !4 = !{} !5 = !{!0} !6 = !DIDerivedType(tag: DW_TAG_volatile_type, baseType: !7) !7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) !8 = !{i32 2, !"CodeView", i32 1} !9 = !{i32 2, !"Debug Info Version", i32 3} !10 = !{i32 1, !"PIC Level", i32 2} !11 = !{!"clang version 3.9.0 (trunk 275430) (llvm/trunk 275433)"} !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) !13 = !DISubroutineType(types: !14) !14 = !{!7} !15 = !DILocation(line: 9, column: 5, scope: !12) !16 = !{!17, !17, i64 0} !17 = !{!"int", !18, i64 0} !18 = !{!"omnipotent char", !19, i64 0} !19 = !{!"Simple C++ TBAA"} !20 = !DILocation(line: 4, column: 5, scope: !21, inlinedAt: !24) !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) !22 = !DISubroutineType(types: !23) !23 = !{null} !24 = distinct !DILocation(line: 10, column: 3, scope: !12) !25 = !DILocation(line: 2, column: 5, scope: !26, inlinedAt: !28) !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) !27 = !DIFile(filename: "./t.h", directory: "D:\5Csrc\5Cllvm\5Cbuild") !28 = distinct !DILocation(line: 5, column: 3, scope: !21, inlinedAt: !24) !29 = !DILocation(line: 6, column: 5, scope: !21, inlinedAt: !24) !30 = !DILocation(line: 11, column: 5, scope: !12) !31 = !DILocation(line: 12, column: 10, scope: !12) !32 = !DILocation(line: 12, column: 3, scope: !12)