-; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj
-; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
+; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj < %s \
+; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V4
+; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj -dwarf-version=3 < %s \
+; RUN: | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V3
-; Check that we use DW_AT_low_pc
+
+; Check that we use DW_AT_low_pc and that it has the right encoding depending
+; on dwarf version.
; CHECK: DW_TAG_compile_unit [1]
+; CHECK-NOT: DW_TAG
; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
+; CHECK-NOT: DW_TAG
+; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
+; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
; CHECK: DW_TAG_subprogram [2]
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_low_pc [DW_FORM_addr]
+; CHECK-NOT: DW_TAG
+; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
+; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
-define i32 @_Z1qv() nounwind uwtable readnone ssp {
+; Function Attrs: nounwind uwtable
+define void @z() #0 !dbg !4 {
entry:
- ret i32 undef, !dbg !13
+ ret void, !dbg !11
}
+attributes #0 = { nounwind 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" }
+
!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!8, !9}
+!llvm.ident = !{!10}
-!0 = metadata !{i32 786449, i32 4, metadata !6, metadata !"clang version 3.1 (trunk 153454) (llvm/trunk 153471)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
-!1 = metadata !{i32 0}
-!3 = metadata !{metadata !5, metadata !12}
-!5 = metadata !{i32 786478, metadata !"_Z1qv", i32 0, metadata !6, metadata !"q", metadata !"q", metadata !6, i32 5, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @_Z1qv, null, null, metadata !10} ; [ DW_TAG_subprogram ]
-!6 = metadata !{i32 786473, metadata !"foo.cpp", metadata !"/Users/echristo/tmp", null} ; [ DW_TAG_file_type ]
-!7 = metadata !{i32 786453, i32 0, metadata !"", i32 0, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
-!8 = metadata !{metadata !9}
-!9 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
-!10 = metadata !{metadata !11}
-!11 = metadata !{i32 786468} ; [ DW_TAG_base_type ]
-!12 = metadata !{i32 786478, metadata !"", i32 0, metadata !6, metadata !"t", metadata !"t", metadata !6, i32 2, metadata !7, i1 true, i1 true, i32 0, i32 0, null, i32 256, i1 false, null, null, null, metadata !10} ; [ DW_TAG_subprogram ]
-!13 = metadata !{i32 7, i32 1, metadata !14, null}
-!14 = metadata !{i32 786443, metadata !5, i32 5, i32 1, metadata !6, i32 0} ; [ DW_TAG_lexical_block ]
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
+!1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
+!2 = !{}
+!3 = !{!4}
+!4 = distinct !DISubprogram(name: "z", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, variables: !2)
+!5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
+!6 = !DISubroutineType(types: !7)
+!7 = !{null}
+!8 = !{i32 2, !"Dwarf Version", i32 4}
+!9 = !{i32 1, !"Debug Info Version", i32 3}
+!10 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
+!11 = !DILocation(line: 1, scope: !4)
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