1 ; RUN: llc < %s - | FileCheck %s 2 ; 3 ; FIXME: A potentially more interesting test case would be: 4 ; %call = @bar() 5 ; dbg.value j=0 6 ; %call2 = @bar() 7 ; dbg.value j=%call 8 ; 9 ; We cannot current handle the above sequence because codegenprepare 10 ; hoists the second dbg.value above %call2, which then appears to 11 ; conflict with j=0. It does this because SelectionDAG cannot handle 12 ; global debug values. 13 14 target triple = "x86_64-apple-darwin10.0.0" 15 16 ;CHECK: ## DW_OP_consts 17 ;CHECK-NEXT: .byte 42 18 define i32 @foobar() nounwind readonly noinline ssp !dbg !0 { 19 entry: 20 tail call void @llvm.dbg.value(metadata i32 42, i64 0, metadata !6, metadata !DIExpression()), !dbg !9 21 %call = tail call i32 @bar(), !dbg !11 22 tail call void @llvm.dbg.value(metadata i32 %call, i64 0, metadata !6, metadata !DIExpression()), !dbg !11 23 %call2 = tail call i32 @bar(), !dbg !11 24 %add = add nsw i32 %call2, %call, !dbg !12 25 ret i32 %add, !dbg !10 26 } 27 28 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 29 declare i32 @bar() nounwind readnone 30 31 !llvm.dbg.cu = !{!2} 32 !llvm.module.flags = !{!17} 33 34 !0 = distinct !DISubprogram(name: "foobar", linkageName: "foobar", line: 12, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, file: !15, scope: !1, type: !3, variables: !14) 35 !1 = !DIFile(filename: "mu.c", directory: "/private/tmp") 36 !2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 2.9 (trunk 114183)", isOptimized: true, emissionKind: 1, file: !15, enums: !16, retainedTypes: !16, subprograms: !13, imports: null) 37 !3 = !DISubroutineType(types: !4) 38 !4 = !{!5} 39 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 40 !6 = !DILocalVariable(name: "j", line: 15, scope: !7, file: !1, type: !5) 41 !7 = distinct !DILexicalBlock(line: 12, column: 52, file: !15, scope: !0) 42 !8 = !{i32 42} 43 !9 = !DILocation(line: 15, column: 12, scope: !7) 44 !10 = !DILocation(line: 23, column: 3, scope: !7) 45 !11 = !DILocation(line: 17, column: 3, scope: !7) 46 !12 = !DILocation(line: 18, column: 3, scope: !7) 47 !13 = !{!0} 48 !14 = !{!6} 49 !15 = !DIFile(filename: "mu.c", directory: "/private/tmp") 50 !16 = !{} 51 !17 = !{i32 1, !"Debug Info Version", i32 3} 52
