| # RUN: llc %s -o - -experimental-debug-variable-locations=true \ |
| # RUN: -run-pass=livedebugvalues | \ |
| # RUN: FileCheck %s --implicit-check-not=DBG_VALUE |
| # |
| # Copy of follow-spill-of-live-value.mir. Test that if we have a variable |
| # location with the indirect flag set (i.e. DBG_VALUE $blah, 0...) then when we |
| # restore that register in the case of a clobber, we keep the indirectness flag. |
| # |
| ## Capture variable num, |
| # CHECK: ![[VARNUM:[0-9]+]] = !DILocalVariable |
| # |
| # CHECK-LABEL: bb.0.entry: |
| # CHECK: DBG_VALUE $r10, 0, ![[VARNUM]], !DIExpression(DW_OP_LLVM_fragment, 64, 64), |
| # CHECK: DBG_VALUE $rsp, 0, ![[VARNUM]], !DIExpression(DW_OP_constu, 8, DW_OP_minus, DW_OP_deref, DW_OP_LLVM_fragment, 64, 64), |
| # CHECK: DBG_VALUE $r10, 0, ![[VARNUM]], !DIExpression(DW_OP_LLVM_fragment, 64, 64), |
| |
| --- | |
| ; ModuleID = 'missingvar.ll' |
| source_filename = "/fast/fs/llvm34/lib/Analysis/LoopPass.cpp" |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| define linkonce_odr void @_ZNSt5dequeIPN4llvm4LoopESaIS2_EE13_M_insert_auxESt15_Deque_iteratorIS2_RS2_PS2_EmRKS2_() local_unnamed_addr align 2 !dbg !3 { |
| entry: |
| call void @llvm.dbg.value(metadata i32 0, metadata !8, metadata !DIExpression()), !dbg !7 |
| ret void |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.module.flags = !{!0} |
| !llvm.dbg.cu = !{!1} |
| |
| !0 = !{i32 2, !"Debug Info Version", i32 3} |
| !1 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "beards", isOptimized: true, runtimeVersion: 4, emissionKind: FullDebug) |
| !2 = !DIFile(filename: "bees.cpp", directory: "") |
| !3 = distinct !DISubprogram(name: "nope", scope: !2, file: !2, line: 1, type: !4, spFlags: DISPFlagDefinition, unit: !1) |
| !4 = !DISubroutineType(types: !5) |
| !5 = !{!6} |
| !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !7 = !DILocation(line: 1, scope: !3) |
| !8 = !DILocalVariable(name: "flannel", scope: !3) |
| |
| ... |
| --- |
| name: _ZNSt5dequeIPN4llvm4LoopESaIS2_EE13_M_insert_auxESt15_Deque_iteratorIS2_RS2_PS2_EmRKS2_ |
| alignment: 16 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$rdi' } |
| - { reg: '$rsi' } |
| - { reg: '$rdx' } |
| frameInfo: |
| stackSize: 48 |
| offsetAdjustment: -48 |
| maxAlignment: 8 |
| maxCallFrameSize: 0 |
| cvBytesOfCalleeSavedRegisters: 48 |
| fixedStack: |
| - { id: 0, type: spill-slot, offset: -56, size: 8, alignment: 8, callee-saved-register: '$rbx' } |
| - { id: 1, type: spill-slot, offset: -48, size: 8, alignment: 16, callee-saved-register: '$r12' } |
| - { id: 2, type: spill-slot, offset: -40, size: 8, alignment: 8, callee-saved-register: '$r13' } |
| - { id: 3, type: spill-slot, offset: -32, size: 8, alignment: 16, callee-saved-register: '$r14' } |
| - { id: 4, type: spill-slot, offset: -24, size: 8, alignment: 8, callee-saved-register: '$r15' } |
| - { id: 5, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$rbp' } |
| stack: |
| - { id: 0, type: spill-slot, offset: -64, size: 8, alignment: 8 } |
| machineFunctionInfo: {} |
| body: | |
| bb.0.entry: |
| liveins: $rdi, $rdx, $rsi, $rbp, $r15, $r14, $r13, $r12, $rbx |
| |
| renamable $r10 = MOV64rm undef renamable $rax, 1, $noreg, 0, $noreg, debug-instr-number 1, debug-location !7 :: (load 8 from `%"class.llvm::Loop"*** undef`) |
| renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags |
| DBG_VALUE $r10, 0, !8, !DIExpression(DW_OP_LLVM_fragment, 64, 64), debug-location !7 |
| TEST8rr renamable $al, renamable $al, implicit-def $eflags, implicit killed $eax, debug-location !7 |
| MOV64mr $rsp, 1, $noreg, -8, $noreg, renamable $r10 :: (store 8 into %stack.0) |
| MOV64mr $rsp, 1, $noreg, -8, $noreg, renamable $rdi :: (store 8 into %stack.0) |
| RET64 |
| ... |