|  | ; RUN: llc < %s | FileCheck %s | 
|  | ; This is mainly a crasher for the revert in r234717.  A debug info intrinsic | 
|  | ; that gets deleted can't have its bit piece expression verified after it's | 
|  | ; deleted. | 
|  |  | 
|  | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" | 
|  | target triple = "x86_64-apple-macosx10.8.0" | 
|  |  | 
|  | ; CHECK: __Z3foov: | 
|  | ; CHECK: retq | 
|  |  | 
|  | define void @_Z3foov() !dbg !12 { | 
|  | entry: | 
|  | br i1 undef, label %exit, label %bb | 
|  |  | 
|  | bb:                                               ; preds = %entry | 
|  | call void @llvm.dbg.value(metadata i8* undef, metadata !15, metadata !16), !dbg !17 | 
|  | br label %exit | 
|  |  | 
|  | exit:                                             ; preds = %bb, %entry | 
|  | ret void | 
|  | } | 
|  |  | 
|  | declare void @llvm.dbg.value(metadata, metadata, metadata) | 
|  |  | 
|  | !llvm.module.flags = !{!0, !1} | 
|  | !llvm.dbg.cu = !{!2} | 
|  |  | 
|  | !0 = !{i32 2, !"Dwarf Version", i32 2} | 
|  | !1 = !{i32 2, !"Debug Info Version", i32 3} | 
|  | !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, retainedTypes: !5, globals: !4, imports: !4) | 
|  | !3 = !DIFile(filename: "foo.cpp", directory: "/path/to/dir") | 
|  | !4 = !{} | 
|  | !5 = !{!6} | 
|  | !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "Class", size: 64, align: 64, elements: !7, identifier: "_ZT5Class") | 
|  | !7 = !{!8, !10} | 
|  | !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, baseType: !9, size: 32, align: 32) | 
|  | !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) | 
|  | !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, baseType: !9, size: 32, align: 32) | 
|  | !12 = distinct !DISubprogram(name: "foo", scope: null, file: !3, type: !13, isLocal: false, isDefinition: true, isOptimized: false, unit: !2) | 
|  | !13 = !DISubroutineType(types: !14) | 
|  | !14 = !{null} | 
|  | !15 = !DILocalVariable(name: "v", scope: !12, type: !6) | 
|  | !16 = !DIExpression(DW_OP_LLVM_fragment, 32, 32) | 
|  | !17 = !DILocation(line: 2755, column: 9, scope: !12) |