1 ; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -o - | FileCheck %s 2 3 ; We are testing that a value in a 16 bit register gets reported as 4 ; being in its superregister. 5 6 ; CHECK: .byte 80 # super-register DW_OP_reg0 7 ; CHECK-NEXT: .byte 147 # DW_OP_piece 8 ; CHECK-NEXT: .byte 2 # 2 9 10 define i16 @f(i16 signext %zzz) nounwind !dbg !1 { 11 entry: 12 call void @llvm.dbg.value(metadata i16 %zzz, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1) 13 %conv = sext i16 %zzz to i32, !dbg !7 14 %conv1 = trunc i32 %conv to i16 15 ret i16 %conv1 16 } 17 18 declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone 19 20 !llvm.dbg.cu = !{!3} 21 !llvm.module.flags = !{!11} 22 !9 = !{!1} 23 24 !0 = !DILocalVariable(name: "zzz", line: 3, arg: 1, scope: !1, file: !2, type: !6) 25 !1 = distinct !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !3, scopeLine: 3, file: !10, scope: !2, type: !4) 26 !2 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build") 27 !3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: false, emissionKind: FullDebug, file: !10, enums: !{}, retainedTypes: !{}, imports: null) 28 !4 = !DISubroutineType(types: !5) 29 !5 = !{null} 30 !6 = !DIBasicType(tag: DW_TAG_base_type, name: "short", size: 16, align: 16, encoding: DW_ATE_signed) 31 !7 = !DILocation(line: 4, column: 22, scope: !8) 32 !8 = distinct !DILexicalBlock(line: 3, column: 19, file: !10, scope: !1) 33 !10 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build") 34 !11 = !{i32 1, !"Debug Info Version", i32 3} 35
