1 ; RUN: llc < %s | FileCheck %s 2 ; This is mainly a crasher for the revert in r234717. A debug info intrinsic 3 ; that gets deleted can't have its bit piece expression verified after it's 4 ; deleted. 5 6 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 7 target triple = "x86_64-apple-macosx10.8.0" 8 9 ; CHECK: __Z3foov: 10 ; CHECK: retq 11 12 define void @_Z3foov() !dbg !12 { 13 entry: 14 br i1 undef, label %exit, label %bb 15 16 bb: ; preds = %entry 17 call void @llvm.dbg.value(metadata i8* undef, i64 0, metadata !15, metadata !16), !dbg !17 18 br label %exit 19 20 exit: ; preds = %bb, %entry 21 ret void 22 } 23 24 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) 25 26 !llvm.module.flags = !{!0, !1} 27 !llvm.dbg.cu = !{!2} 28 29 !0 = !{i32 2, !"Dwarf Version", i32 2} 30 !1 = !{i32 2, !"Debug Info Version", i32 3} 31 !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) 32 !3 = !DIFile(filename: "foo.cpp", directory: "/path/to/dir") 33 !4 = !{} 34 !5 = !{!6} 35 !6 = !DICompositeType(tag: DW_TAG_structure_type, name: "Class", size: 64, align: 64, elements: !7, identifier: "_ZT5Class") 36 !7 = !{!8, !10} 37 !8 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !6, baseType: !9, size: 32, align: 32) 38 !9 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 39 !10 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !6, baseType: !9, size: 32, align: 32) 40 !12 = distinct !DISubprogram(name: "foo", scope: null, file: !3, type: !13, isLocal: false, isDefinition: true, isOptimized: false, unit: !2) 41 !13 = !DISubroutineType(types: !14) 42 !14 = !{null} 43 !15 = !DILocalVariable(name: "v", scope: !12, type: !6) 44 !16 = !DIExpression(DW_OP_bit_piece, 32, 32) 45 !17 = !DILocation(line: 2755, column: 9, scope: !12) 46
