test/Feature/md_on_instruction.ll

; RUN: llvm-as < %s | llvm-dis | grep " !dbg " | count 4
define i32 @foo() nounwind ssp {
entry:
  %retval = alloca i32                            ; <i32*> [#uses=2]
  call void @llvm.dbg.func.start(metadata !0)
  store i32 42, i32* %retval, !dbg !3
  br label %0, !dbg !3

; <label>:0                                       ; preds = %entry
  call void @llvm.dbg.region.end(metadata !0)
  %1 = load i32* %retval, !dbg !3                  ; <i32> [#uses=1]
  ret i32 %1, !dbg !3
}

declare void @llvm.dbg.func.start(metadata) nounwind readnone

declare void @llvm.dbg.region.end(metadata) nounwind readnone

!llvm.module.flags = !{!6}

!0 = !{!"0x2e\00foo\00foo\00foo\001\000\001\000\006\000\000\000", i32 0, !1, !2, null, null, null, null} ; [ DW_TAG_subprogram ]
!1 = !{!"0x11\0012\00clang 1.0\001\00\000\00\000", !4, !5, !5, !4, null, null} ; [ DW_TAG_compile_unit ]
!2 = !{!"0x24\00int\000\0032\0032\000\000\005", null, !1} ; [ DW_TAG_base_type ]
!3 = !MDLocation(line: 1, column: 13, scope: !1, inlinedAt: !1)
!4 = !{!"foo.c", !"/tmp"}
!5 = !{i32 0}
!6 = !{i32 1, !"Debug Info Version", i32 2}