test/DebugInfo/X86/low-pc-cu.ll

   1 ; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj < %s \
   2 ; RUN:     | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V4
   3 ; RUN: llc -mtriple=x86_64-apple-darwin -filetype=obj -dwarf-version=3 < %s \
   4 ; RUN:     | llvm-dwarfdump -debug-dump=info - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-V3
   5
   6
   7 ; Check that we use DW_AT_low_pc and that it has the right encoding depending
   8 ; on dwarf version.
   9
  10 ; CHECK: DW_TAG_compile_unit [1]
  11 ; CHECK-NOT: DW_TAG
  12 ; CHECK: DW_AT_low_pc [DW_FORM_addr]       (0x0000000000000000)
  13 ; CHECK-NOT: DW_TAG
  14 ; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
  15 ; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
  16 ; CHECK: DW_TAG_subprogram [2]
  17 ; CHECK-NOT: DW_TAG
  18 ; CHECK: DW_AT_low_pc [DW_FORM_addr]
  19 ; CHECK-NOT: DW_TAG
  20 ; CHECK-V3: DW_AT_high_pc [DW_FORM_addr]
  21 ; CHECK-V4: DW_AT_high_pc [DW_FORM_data4]
  22
  23 ; Function Attrs: nounwind uwtable
  24 define void @z() #0 !dbg !4 {
  25 entry:
  26   ret void, !dbg !11
  27 }
  28
  29 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" }
  30
  31 !llvm.dbg.cu = !{!0}
  32 !llvm.module.flags = !{!8, !9}
  33 !llvm.ident = !{!10}
  34
  35 !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)
  36 !1 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
  37 !2 = !{}
  38 !3 = !{!4}
  39 !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)
  40 !5 = !DIFile(filename: "z.c", directory: "/usr/local/google/home/echristo")
  41 !6 = !DISubroutineType(types: !7)
  42 !7 = !{null}
  43 !8 = !{i32 2, !"Dwarf Version", i32 4}
  44 !9 = !{i32 1, !"Debug Info Version", i32 3}
  45 !10 = !{!"clang version 3.5.0 (trunk 204164) (llvm/trunk 204183)"}
  46 !11 = !DILocation(line: 1, scope: !4)