|  | ; RUN: llvm-as < %s > %t.bc | 
|  | ; RUN: llvm-as < %p/2009-09-03-mdnode2.ll > %t2.bc | 
|  | ; RUN: llvm-link %t.bc %t2.bc | 
|  |  | 
|  | declare void @f() nounwind | 
|  |  | 
|  | define i32 @main(...) nounwind { | 
|  | entry: | 
|  | %retval = alloca i32                            ; <i32*> [#uses=2] | 
|  | call void @llvm.dbg.func.start(metadata !0) | 
|  | store i32 0, i32* %retval | 
|  | call void @llvm.dbg.stoppoint(i32 4, i32 5, metadata !1) | 
|  | call void @f() | 
|  | br label %return | 
|  |  | 
|  | return:                                           ; preds = %entry | 
|  | %0 = load i32, i32* %retval                          ; <i32> [#uses=1] | 
|  | call void @llvm.dbg.stoppoint(i32 5, i32 1, metadata !1) | 
|  | call void @llvm.dbg.region.end(metadata !0) | 
|  | ret i32 %0 | 
|  | } | 
|  |  | 
|  | declare void @llvm.dbg.func.start(metadata) nounwind readnone | 
|  |  | 
|  | declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone | 
|  |  | 
|  | declare void @llvm.dbg.region.end(metadata) nounwind readnone | 
|  |  | 
|  | !0 = distinct !DISubprogram(name: "main", linkageName: "main", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scope: !1) | 
|  | !1 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "ellcc 0.1.0", isOptimized: true, emissionKind: FullDebug, file: !2) | 
|  | !2 = !DIFile(filename: "a.c", directory: "/home/rich/ellcc/test/source") |