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1# RUN: llc %s -o - -run-pass=livedebugvalues -mtriple=x86_64 \2# RUN: -experimental-debug-variable-locations=true \3# RUN: | FileCheck %s4#5## This test used to crash InstrRefBasedLDV, due to fragment information going6## missing; test for that, and also check what happens when we have assignments7## outside of lexical scope. In the IR below, "_First" is only in scope in the8## entry block, but is assigned in every block. Under current behaviour, that9## means that InstrRefBasedLDV will propagate its location through all blocks.10#11# CHECK: ![[FIRSTVAR:[0-9]+]] = !DILocalVariable(name: "_First",12#13# CHECK-LABEL: bb.0.entry:14# CHECK: DBG_VALUE_LIST ![[FIRSTVAR]],15# CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), $rbx16#17# CHECK-LABEL: bb.1.if.then.i.i.i.i.i:18# CHECK: DBG_VALUE_LIST ![[FIRSTVAR]],19# CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), $rbx20# CHECK: DBG_INSTR_REF ![[FIRSTVAR]],21# CHECK: DBG_VALUE_LIST ![[FIRSTVAR]],22# CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), $rbx23 24# CHECK-LABEL: bb.2._Z17do_insert_cv_testI5_TreeEvv.exit:25# CHECK: DBG_VALUE_LIST ![[FIRSTVAR]],26# CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), $rbx27# CHECK: DBG_INSTR_REF ![[FIRSTVAR]],28# CHECK: DBG_VALUE_LIST ![[FIRSTVAR]],29# CHECK-SAME: !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), $rbx30 31--- |32 source_filename = "reduced.ll"33 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"34 35 %class._Tree = type { i8 }36 %class._Tree_const_iterator = type { %class._Tree_unchecked_const_iterator }37 %class._Tree_unchecked_const_iterator = type { %struct._Iterator_base0, ptr }38 %struct._Iterator_base0 = type { i32 }39 40 define i32 @main({ i32, ptr } %call.i, i1 %arg) !dbg !6 {41 entry:42 call void @llvm.dbg.value(metadata i32 2, metadata !10, metadata !DIExpression()), !dbg !1243 %call.i1 = call { i32, ptr } undef(ptr null)44 %0 = extractvalue { i32, ptr } %call.i, 145 call void @llvm.dbg.value(metadata ptr %0, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)), !dbg !1546 %call.i.i.i.i.i = call i8 undef(ptr null), !dbg !1547 br i1 %arg, label %_Z17do_insert_cv_testI5_TreeEvv.exit, label %if.then.i.i.i.i.i48 49 if.then.i.i.i.i.i:50 %call3.i.i.i.i.i = call ptr undef(ptr null)51 call void @llvm.dbg.value(metadata ptr %call3.i.i.i.i.i, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)), !dbg !1552 br label %_Z17do_insert_cv_testI5_TreeEvv.exit53 54 _Z17do_insert_cv_testI5_TreeEvv.exit:55 %_First.sroa.2.0.i.i = phi ptr [ %0, %entry ], [ %call3.i.i.i.i.i, %if.then.i.i.i.i.i ]56 call void @llvm.dbg.value(metadata ptr %_First.sroa.2.0.i.i, metadata !13, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64)), !dbg !1557 call void undef(ptr null, i32 0, ptr %_First.sroa.2.0.i.i), !dbg !1658 ret i32 059 }60 61 declare void @llvm.dbg.value(metadata, metadata, metadata)62 63 !llvm.dbg.cu = !{!0}64 !llvm.module.flags = !{!2, !3, !4, !5}65 66 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 14.0.0 (git@github.com:llvm/llvm-project ffb249520766d4e2ca120c09dae7afa3d64ef81d)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)67 !1 = !DIFile(filename: "toolchain10279.cpp", directory: "/home/jmorse")68 !2 = !{i32 7, !"Dwarf Version", i32 4}69 !3 = !{i32 2, !"Debug Info Version", i32 3}70 !4 = !{i32 1, !"wchar_size", i32 4}71 !5 = !{i32 7, !"uwtable", i32 1}72 !6 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 52, type: !7, scopeLine: 52, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)73 !7 = !DISubroutineType(types: !8)74 !8 = !{!9}75 !9 = !DIBasicType(name: "int", size: 128, encoding: DW_ATE_signed)76 !10 = !DILocalVariable(name: "v1", scope: !11, file: !1, line: 47, type: !9)77 !11 = distinct !DILexicalBlock(scope: !6)78 !12 = !DILocation(line: 0, scope: !11)79 !13 = !DILocalVariable(name: "_First", arg: 1, scope: !14, file: !1, line: 11, type: !9)80 !14 = distinct !DILexicalBlock(scope: !6)81 !15 = !DILocation(line: 0, scope: !14)82 !16 = !DILocation(line: 50, column: 11, scope: !11)83 84...85---86name: main87alignment: 1688tracksRegLiveness: true89debugInstrRef: true90liveins:91 - { reg: '$rsi' }92frameInfo:93 stackSize: 2494 offsetAdjustment: -2495 maxAlignment: 196 adjustsStack: true97 hasCalls: true98 maxCallFrameSize: 099 cvBytesOfCalleeSavedRegisters: 16100fixedStack:101 - { id: 0, type: spill-slot, offset: -24, size: 8, alignment: 8, callee-saved-register: '$rbx' }102 - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 16, callee-saved-register: '$r14' }103machineFunctionInfo: {}104body: |105 bb.0.entry:106 liveins: $rsi, $r14, $rbx107 108 frame-setup PUSH64r killed $r14, implicit-def $rsp, implicit $rsp109 CFI_INSTRUCTION def_cfa_offset 16110 frame-setup PUSH64r killed $rbx, implicit-def $rsp, implicit $rsp111 CFI_INSTRUCTION def_cfa_offset 24112 frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp113 CFI_INSTRUCTION def_cfa_offset 32114 CFI_INSTRUCTION offset $rbx, -24115 CFI_INSTRUCTION offset $r14, -16116 DBG_PHI $rsi, 2117 $rbx = MOV64rr $rsi118 DBG_VALUE 2, $noreg, !10, !DIExpression(), debug-location !12119 renamable $r14d = XOR32rr undef $r14d, undef $r14d, implicit-def dead $eflags, implicit-def $r14120 dead $edi = XOR32rr undef $edi, undef $edi, implicit-def dead $eflags, implicit-def $rdi121 CALL64r undef renamable $rax, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def dead $eax, implicit-def dead $rdx122 DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), dbg-instr-ref(2, 0), debug-location !15123 dead $edi = XOR32rr undef $edi, undef $edi, implicit-def dead $eflags, implicit-def $rdi, debug-location !15124 CALL64r undef renamable $rax, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def dead $al, debug-location !15125 TEST8rr renamable $r14b, renamable $r14b, implicit-def $eflags, implicit killed $r14126 JCC_1 %bb.2, 5, implicit $eflags127 128 bb.1.if.then.i.i.i.i.i:129 dead $edi = XOR32rr undef $edi, undef $edi, implicit-def dead $eflags, implicit-def $rdi130 CALL64r undef renamable $rax, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp, implicit-def $rax, debug-instr-number 3131 $rbx = MOV64rr killed $rax132 DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), dbg-instr-ref(3, 7), debug-location !15133 134 bb.2._Z17do_insert_cv_testI5_TreeEvv.exit:135 liveins: $rbx136 137 DBG_PHI $rbx, 1138 DBG_INSTR_REF !13, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_fragment, 64, 64), dbg-instr-ref(1, 0), debug-location !15139 dead $edi = XOR32rr undef $edi, undef $edi, implicit-def dead $eflags, implicit-def $rdi, debug-location !16140 $esi = XOR32rr undef $esi, undef $esi, implicit-def dead $eflags, debug-location !16141 $rdx = MOV64rr killed $rbx, debug-location !16142 CALL64r undef renamable $rax, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit $esi, implicit killed $rdx, implicit-def $rsp, implicit-def $ssp, debug-location !16143 $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags144 $rsp = frame-destroy ADD64ri8 $rsp, 8, implicit-def dead $eflags145 CFI_INSTRUCTION def_cfa_offset 24146 $rbx = frame-destroy POP64r implicit-def $rsp, implicit $rsp147 CFI_INSTRUCTION def_cfa_offset 16148 $r14 = frame-destroy POP64r implicit-def $rsp, implicit $rsp149 CFI_INSTRUCTION def_cfa_offset 8150 RET64 killed $eax151 152...153