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      1 ; REQUIRES: object-emission
      2 
      3 ; RUN: llc -filetype=obj < %s > %t
      4 ; RUN: llvm-dwarfdump %t | FileCheck %s
      5 
      6 ; IR generated from clang -O -g with the following source
      7 ;
      8 ; void f1(int x, int y);
      9 ; void f3(int line);
     10 ; void f2() {
     11 ;   f1(1, 2);
     12 ; }
     13 ; void f1(int x, int y) {
     14 ;   f3(y);
     15 ; }
     16 
     17 ; CHECK: DW_AT_name{{.*}}"f1"
     18 ; CHECK: DW_TAG_formal_parameter
     19 ; CHECK-NEXT: DW_AT_name{{.*}}"x"
     20 ; CHECK: DW_TAG_formal_parameter
     21 ; CHECK-NEXT: DW_AT_name{{.*}}"y"
     22 
     23 ; Function Attrs: uwtable
     24 define void @_Z2f2v() #0 {
     25   tail call void @llvm.dbg.value(metadata !15, i64 0, metadata !16), !dbg !18
     26   tail call void @llvm.dbg.value(metadata !19, i64 0, metadata !20), !dbg !18
     27   tail call void @_Z2f3i(i32 2), !dbg !21
     28   ret void, !dbg !22
     29 }
     30 
     31 ; Function Attrs: uwtable
     32 define void @_Z2f1ii(i32 %x, i32 %y) #0 {
     33   tail call void @llvm.dbg.value(metadata !{i32 %x}, i64 0, metadata !13), !dbg !23
     34   tail call void @llvm.dbg.value(metadata !{i32 %y}, i64 0, metadata !14), !dbg !23
     35   tail call void @_Z2f3i(i32 %y), !dbg !24
     36   ret void, !dbg !25
     37 }
     38 
     39 declare void @_Z2f3i(i32) #1
     40 
     41 ; Function Attrs: nounwind readnone
     42 declare void @llvm.dbg.value(metadata, i64, metadata) #2
     43 
     44 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
     45 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
     46 attributes #2 = { nounwind readnone }
     47 
     48 !llvm.dbg.cu = !{!0}
     49 
     50 !0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4 ", i1 true, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/exp.cpp] [DW_LANG_C_plus_plus]
     51 !1 = metadata !{metadata !"exp.cpp", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
     52 !2 = metadata !{i32 0}
     53 !3 = metadata !{metadata !4, metadata !8}
     54 !4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f2", metadata !"f2", metadata !"_Z2f2v", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @_Z2f2v, null, null, metadata !2, i32 3} ; [ DW_TAG_subprogram ] [line 3] [def] [f2]
     55 !5 = metadata !{i32 786473, metadata !1}          ; [ DW_TAG_file_type ] [/usr/local/google/home/blaikie/dev/scratch/exp.cpp]
     56 !6 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
     57 !7 = metadata !{null}
     58 !8 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"f1", metadata !"f1", metadata !"_Z2f1ii", i32 6, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32, i32)* @_Z2f1ii, null, null, metadata !12, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [f1]
     59 !9 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !10, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
     60 !10 = metadata !{null, metadata !11, metadata !11}
     61 !11 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
     62 !12 = metadata !{metadata !13, metadata !14}
     63 !13 = metadata !{i32 786689, metadata !8, metadata !"x", metadata !5, i32 16777222, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [x] [line 6]
     64 !14 = metadata !{i32 786689, metadata !8, metadata !"y", metadata !5, i32 33554438, metadata !11, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [y] [line 6]
     65 !15 = metadata !{i32 undef}
     66 !16 = metadata !{i32 786689, metadata !8, metadata !"x", metadata !5, i32 16777222, metadata !11, i32 0, metadata !17} ; [ DW_TAG_arg_variable ] [x] [line 6]
     67 !17 = metadata !{i32 4, i32 0, metadata !4, null}
     68 !18 = metadata !{i32 6, i32 0, metadata !8, metadata !17}
     69 !19 = metadata !{i32 2}
     70 !20 = metadata !{i32 786689, metadata !8, metadata !"y", metadata !5, i32 33554438, metadata !11, i32 0, metadata !17} ; [ DW_TAG_arg_variable ] [y] [line 6]
     71 !21 = metadata !{i32 7, i32 0, metadata !8, metadata !17}
     72 !22 = metadata !{i32 5, i32 0, metadata !4, null}
     73 !23 = metadata !{i32 6, i32 0, metadata !8, null}
     74 !24 = metadata !{i32 7, i32 0, metadata !8, null}
     75 !25 = metadata !{i32 8, i32 0, metadata !8, null} ; [ DW_TAG_imported_declaration ]
     76