; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -o - | FileCheck %s ; We are testing that a value in a 16 bit register gets reported as ; being in its superregister. ; CHECK: .byte 80 # super-register DW_OP_reg0 ; CHECK-NEXT: .byte 147 # DW_OP_piece ; CHECK-NEXT: .byte 2 # 2 define i16 @f(i16 signext %zzz) nounwind { entry: call void @llvm.dbg.value(metadata i16 %zzz, i64 0, metadata !0, metadata !MDExpression()), !dbg !MDLocation(scope: !1) %conv = sext i16 %zzz to i32, !dbg !7 %conv1 = trunc i32 %conv to i16 ret i16 %conv1 } declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone !llvm.dbg.cu = !{!3} !llvm.module.flags = !{!11} !9 = !{!1} !0 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "zzz", line: 3, arg: 1, scope: !1, file: !2, type: !6) !1 = !MDSubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !10, scope: !2, type: !4, function: i16 (i16)* @f) !2 = !MDFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build") !3 = !MDCompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: false, emissionKind: 1, file: !10, enums: !{}, retainedTypes: !{}, subprograms: !9, imports: null) !4 = !MDSubroutineType(types: !5) !5 = !{null} !6 = !MDBasicType(tag: DW_TAG_base_type, name: "short", size: 16, align: 16, encoding: DW_ATE_signed) !7 = !MDLocation(line: 4, column: 22, scope: !8) !8 = distinct !MDLexicalBlock(line: 3, column: 19, file: !10, scope: !1) !10 = !MDFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build") !11 = !{i32 1, !"Debug Info Version", i32 3}