| # RUN: llc -start-before=livedebugvalues -filetype=obj -o - %s | \ |
| # RUN: llvm-dwarfdump - | FileCheck %s |
| # |
| # This is an artificial example of a debug value residing in a composite |
| # location with a complex expression. Because the semantics of applying a DWARF |
| # expression to a composite location are ill-defined, the compiler should bail |
| # out of emitting a location. |
| # |
| # CHECK: .debug_info contents: |
| # CHECK: DW_TAG_variable |
| # CHECK-NOT: DW_AT_location |
| # CHECK: DW_TAG |
| --- | |
| ; Generated from: |
| ; typedef float vec2 __attribute__((vector_size(16))); |
| ; vec2 v(); |
| ; float f() { |
| ; vec2 vec = v(); |
| ; return vec[0] + vec[1]; |
| ; } |
| |
| target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" |
| target triple = "thumbv7s-apple-ios5.0.0" |
| |
| define float @f() local_unnamed_addr #0 !dbg !9 { |
| entry: |
| %call = tail call <4 x float> bitcast (<4 x float> (...)* @v to <4 x float> ()*)() #0, !dbg !19 |
| tail call void @llvm.dbg.value(metadata <4 x float> %call, i64 0, metadata !14, metadata !20), !dbg !21 |
| %vecext = extractelement <4 x float> %call, i32 0, !dbg !22 |
| %vecext1 = extractelement <4 x float> %call, i32 1, !dbg !23 |
| %add = fadd float %vecext, %vecext1, !dbg !24 |
| ret float %add, !dbg !25 |
| } |
| |
| declare arm_aapcs_vfpcc <4 x float> @v(...) local_unnamed_addr #0 |
| declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #0 |
| |
| attributes #0 = { nounwind readnone } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!8} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 286322) (llvm/trunk 286305)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2) |
| !1 = !DIFile(filename: "v.c", directory: "/") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 2} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !8 = !{!"clang version 4.0.0 (trunk 286322) (llvm/trunk 286305)"} |
| !9 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 3, type: !10, isLocal: false, isDefinition: true, scopeLine: 3, isOptimized: true, unit: !0, retainedNodes: !13) |
| !10 = !DISubroutineType(types: !11) |
| !11 = !{!12} |
| !12 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float) |
| !13 = !{!14} |
| !14 = !DILocalVariable(name: "vec", scope: !9, file: !1, line: 4, type: !15) |
| !15 = !DIDerivedType(tag: DW_TAG_typedef, name: "vec2", file: !1, line: 1, baseType: !16) |
| !16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !12, size: 128, flags: DIFlagVector, elements: !17) |
| !17 = !{!18} |
| !18 = !DISubrange(count: 4) |
| !19 = !DILocation(line: 4, column: 13, scope: !9) |
| !20 = !DIExpression(DW_OP_plus_uconst, 1, DW_OP_constu, 1, DW_OP_minus) |
| !21 = !DILocation(line: 4, column: 7, scope: !9) |
| !22 = !DILocation(line: 5, column: 9, scope: !9) |
| !23 = !DILocation(line: 5, column: 18, scope: !9) |
| !24 = !DILocation(line: 5, column: 16, scope: !9) |
| !25 = !DILocation(line: 5, column: 2, scope: !9) |
| |
| ... |
| --- |
| name: f |
| alignment: 1 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| tracksRegLiveness: true |
| calleeSavedRegisters: [ '$lr', '$d8', '$d9', '$d10', '$d11', '$d12', '$d13', |
| '$d14', '$d15', '$q4', '$q5', '$q6', '$q7', '$r4', |
| '$r5', '$r6', '$r7', '$r8', '$r10', '$r11', '$s16', |
| '$s17', '$s18', '$s19', '$s20', '$s21', '$s22', |
| '$s23', '$s24', '$s25', '$s26', '$s27', '$s28', |
| '$s29', '$s30', '$s31', '$d8_d10', '$d9_d11', '$d10_d12', |
| '$d11_d13', '$d12_d14', '$d13_d15', '$q4_q5', '$q5_q6', |
| '$q6_q7', '$q4_q5_q6_q7', '$r4_r5', '$r6_r7', '$r10_r11', |
| '$d8_d9_d10', '$d9_d10_d11', '$d10_d11_d12', '$d11_d12_d13', |
| '$d12_d13_d14', '$d13_d14_d15', '$d8_d10_d12', |
| '$d9_d11_d13', '$d10_d12_d14', '$d11_d13_d15', |
| '$d8_d10_d12_d14', '$d9_d11_d13_d15', '$d9_d10', |
| '$d11_d12', '$d13_d14', '$d9_d10_d11_d12', '$d11_d12_d13_d14' ] |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 4 |
| offsetAdjustment: 0 |
| maxAlignment: 4 |
| adjustsStack: true |
| hasCalls: true |
| maxCallFrameSize: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| stack: |
| - { id: 0, type: spill-slot, offset: -4, size: 4, alignment: 4, callee-saved-register: '$lr' } |
| body: | |
| bb.0.entry: |
| liveins: $lr |
| |
| early-clobber $sp = frame-setup t2STR_PRE killed undef $lr, $sp, -4, 14, _ |
| frame-setup CFI_INSTRUCTION def_cfa_offset 4 |
| frame-setup CFI_INSTRUCTION offset $lr, -4 |
| tBL 14, _, @v, csr_ios, implicit-def dead $lr, implicit $sp, implicit-def $sp, implicit-def $r0, implicit-def $r1, implicit-def $r2, implicit-def $r3, debug-location !19 |
| $d1 = VMOVDRR killed $r2, killed $r3, 14, _, implicit-def $q0, debug-location !19 |
| $d0 = VMOVDRR killed $r0, killed $r1, 14, _, implicit killed $q0, implicit-def $q0, debug-location !19 |
| DBG_VALUE debug-use $q0, debug-use _, !14, !20, debug-location !21 |
| $s4 = VMOVS $s1, 14, _, implicit-def $d2, debug-location !24 |
| $d0 = VADDfd $d0, killed $d2, 14, _, implicit killed $q0, debug-location !24 |
| $r0 = VMOVRS $s0, 14, _, implicit killed $d0, debug-location !25 |
| $lr, $sp = t2LDR_POST $sp, 4, 14, _, debug-location !25 |
| tBX_RET 14, _, implicit $r0, debug-location !25 |
| |
| ... |
