1# RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s | \ 2# RUN: llvm-dwarfdump -debug-info - | FileCheck %s 3# 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_parameter 10# CHECK-NEXT: DW_AT_location 11# CHECK-NEXT: DW_OP_regx D16, DW_OP_piece 0x4, DW_OP_regx D15, DW_OP_bit_piece 0x20 0x20 12# CHECK-NEXT: DW_AT_name {{.*}}"boundingRect" 13--- | 14 target triple = "thumbv7k-apple-watchos" 15 define swiftcc void @f() !dbg !5 { 16 ret void 17 } 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: true 33body: | 34 bb.0: 35 liveins: $r6 36 37 DBG_VALUE $s31, $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 32, 32), debug-location !10 38 DBG_VALUE $q8, $noreg, !12, !DIExpression(DW_OP_LLVM_fragment, 0, 32), debug-location !10 39 renamable $r0 = t2ADDri $r6, 144, 14, $noreg, $noreg, debug-location !10 40