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1# RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s | \2# RUN: llvm-dwarfdump -debug-info - | FileCheck %s3#4# In this test the first DBG_VALUE is 32 bits large and sits in 128-bit register Q8,5# which has to be decomposed into two 64-bit register D16, D17.6# This test ensures that the unused D17 is suppressed in the output.7#8# CHECK: .debug_info contents:9# CHECK: DW_TAG_formal_parameter10# CHECK-NEXT: DW_AT_location11# CHECK-NEXT: DW_OP_regx D16, DW_OP_piece 0x4, DW_OP_regx D15, DW_OP_bit_piece 0x20 0x2012# CHECK-NEXT: DW_AT_name {{.*}}"boundingRect"13--- |14 target triple = "thumbv7k-apple-watchos"15 define swiftcc void @f() !dbg !5 {16 ret void17 }18 !llvm.module.flags = !{!0}19 !llvm.dbg.cu = !{!2}20 !0 = !{i32 2, !"Debug Info Version", i32 3}21 !2 = distinct !DICompileUnit(language: DW_LANG_Swift, file: !3,22 isOptimized: true, runtimeVersion: 5, emissionKind: FullDebug, enums: !4, globals: !4, imports: !4)23 !3 = !DIFile(filename: "t.swift", directory: "/")24 !4 = !{}25 !5 = distinct !DISubprogram(name: "f", scope: !3, file: !3, line: 388, type: !9, scopeLine: 388, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !4)26 !9 = !DISubroutineType(types: !4)27 !10 = !DILocation(line: 0, scope: !5)28 !12 = !DILocalVariable(name: "boundingRect", arg: 1, scope: !5, file: !3, line: 388, type: !13)29 !13 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !14)30 !14 = !DICompositeType(tag: DW_TAG_structure_type, name: "CGRect", scope: !5, file: !3, line: 46, size: 128, elements: !4, runtimeLang: DW_LANG_Swift, identifier: "$sSo6CGRectVD")31name: 'f'32tracksRegLiveness: true33body: |34 bb.0:35 liveins: $r636 37 DBG_VALUE $s31, $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 32, 32), debug-location !1038 DBG_VALUE $q8, $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !1039 renamable $r0 = t2ADDri $r6, 144, 14, $noreg, $noreg, debug-location !1040