1 ; RUN: llc < %s -filetype=obj | llvm-dwarfdump -debug-dump=info - | FileCheck %s 2 ; from (at -Os): 3 ; void foo() { 4 ; float a = 3.14; 5 ; *(int *)&a = 0; 6 ; } 7 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 8 target triple = "x86_64-apple-macosx10.10.0" 9 10 ; Function Attrs: nounwind optsize readnone uwtable 11 define void @foo() #0 !dbg !7 { 12 entry: 13 tail call void @llvm.dbg.declare(metadata float* undef, metadata !13, metadata !19), !dbg !20 14 tail call void @llvm.dbg.value(metadata i32 1078523331, i64 0, metadata !13, metadata !19), !dbg !20 15 tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !13, metadata !19), !dbg !20 16 ; CHECK: DW_AT_const_value [DW_FORM_sdata] (0) 17 ; CHECK-NEXT: DW_AT_name {{.*}}"a" 18 ret void, !dbg !21 19 } 20 21 ; Function Attrs: nounwind readnone 22 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 23 24 ; Function Attrs: nounwind readnone 25 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 26 27 attributes #0 = { nounwind optsize readnone uwtable } 28 attributes #1 = { nounwind readnone } 29 30 !llvm.dbg.cu = !{!0} 31 !llvm.module.flags = !{!15, !16, !17} 32 !llvm.ident = !{!18} 33 34 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.7.0 (trunk 227686)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !2, imports: !2) 35 !1 = !DIFile(filename: "foo.c", directory: "") 36 !2 = !{} 37 !3 = !{!4} 38 !4 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !5) 39 !5 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 40 !7 = distinct !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, isOptimized: true, unit: !0, scopeLine: 1, file: !8, scope: !9, type: !10, variables: !12) 41 !8 = !DIFile(filename: "foo.c", directory: "") 42 !9 = !DIFile(filename: "foo.c", directory: "") 43 !10 = !DISubroutineType(types: !11) 44 !11 = !{null} 45 !12 = !{!13} 46 !13 = !DILocalVariable(name: "a", line: 2, scope: !7, file: !9, type: !14) 47 !14 = !DIBasicType(tag: DW_TAG_base_type, name: "float", size: 32, align: 32, encoding: DW_ATE_float) 48 !15 = !{i32 2, !"Dwarf Version", i32 2} 49 !16 = !{i32 2, !"Debug Info Version", i32 3} 50 !17 = !{i32 1, !"PIC Level", i32 2} 51 !18 = !{!"clang version 3.7.0 (trunk 227686)"} 52 !19 = !DIExpression() 53 !20 = !DILocation(line: 2, column: 9, scope: !7) 54 !21 = !DILocation(line: 4, column: 1, scope: !7) 55
