; RUN: llc -mcpu=core2 -mtriple=i686-pc-win32 -O0 < %s | FileCheck --check-prefix=X86 %s ; This LL file was generated by running clang on the following code: ; D:\test.cpp: ; 1 void foo(); ; 2 ; 3 static void bar(int arg, ...) { ; 4 foo(); ; 5 } ; 6 ; 7 void spam(void) { ; 8 bar(42); ; 9 } ; ; The bar function happens to have no lexical scopes, yet it has one instruction ; with debug information available. This used to be PR19239. ; X86-LABEL: {{^}}"?bar@@YAXHZZ": ; X86-NEXT: # BB ; X86-NEXT: [[JMP_LINE:^L.*]]:{{$}} ; X86: jmp "?foo@@YAXXZ" ; X86-NEXT: [[END_OF_BAR:^L.*]]:{{$}} ; X86-NOT: ret ; X86-LABEL: .section .debug$S,"rd" ; X86: .secrel32 "?bar@@YAXHZZ" ; X86-NEXT: .secidx "?bar@@YAXHZZ" ; X86: .long 0 ; X86-NEXT: .long 1 ; X86-NEXT: .long {{.*}} ; X86-NEXT: .long [[JMP_LINE]]-"?bar@@YAXHZZ" ; X86-NEXT: .long 4 ; X86-LABEL: .long 244 ; ModuleID = 'test.cpp' target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" target triple = "i686-pc-win32" ; Function Attrs: nounwind define void @"\01?spam@@YAXXZ"() #0 { entry: tail call void @"\01?bar@@YAXHZZ"(), !dbg !11 ret void, !dbg !12 } ; Function Attrs: nounwind define internal void @"\01?bar@@YAXHZZ"() #0 { entry: tail call void @"\01?foo@@YAXXZ"() #2, !dbg !13 ret void, !dbg !14 } declare void @"\01?foo@@YAXXZ"() #1 attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } attributes #2 = { nounwind } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!8, !9} !llvm.ident = !{!10} !0 = !{!"0x11\004\00clang version 3.5.0 \001\00\000\00\002", !1, !2, !2, !3, !2, !2} ; [ DW_TAG_compile_unit ] [D:\/test.cpp] [DW_LANG_C_plus_plus] !1 = !{!"test.cpp", !"D:\5C"} !2 = !{} !3 = !{!4, !7} !4 = !{!"0x2e\00spam\00spam\00\007\000\001\000\006\00256\001\007", !1, !5, !6, null, void ()* @"\01?spam@@YAXXZ", null, null, !2} ; [ DW_TAG_subprogram ] [line 7] [def] [spam] !5 = !{!"0x29", !1} ; [ DW_TAG_file_type ] [D:\/test.cpp] !6 = !{!"0x15\00\000\000\000\000\000\000", i32 0, null, null, !2, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ] !7 = !{!"0x2e\00bar\00bar\00\003\001\001\000\006\00256\001\003", !1, !5, !6, null, null, null, null, !2} ; [ DW_TAG_subprogram ] [line 3] [local] [def] [bar] !8 = !{i32 2, !"Dwarf Version", i32 4} !9 = !{i32 1, !"Debug Info Version", i32 2} !10 = !{!"clang version 3.5.0 "} !11 = !MDLocation(line: 8, scope: !4) !12 = !MDLocation(line: 9, scope: !4) !13 = !MDLocation(line: 4, scope: !7) !14 = !MDLocation(line: 5, scope: !7)