1# RUN: llc -mtriple=x86_64-- -run-pass livedebugvalues -o - %s -experimental-debug-variable-locations=false | FileCheck %s --implicit-check-not=DBG_VALUE_LIST 2# 3# The MIR below moves values from argument registers to callee saved registers, 4# moves that are followed by DBG_VALUEs and which should also result in 5# DBG_VALUE_LISTs moving their operands. 6# 7# CHECK: ![[VAR:[0-9]+]] = !DILocalVariable(name: "c" 8# 9# CHECK-LABEL: bb.0.entry: 10# CHECK: DBG_VALUE_LIST ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0, 11# CHECK-SAME: DW_OP_LLVM_arg, 1, DW_OP_plus), $rdi, $rsi 12# CHECK: $rbx = COPY killed $rdi 13# CHECK-NEXT: DBG_VALUE_LIST ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0, 14# CHECK-SAME: DW_OP_LLVM_arg, 1, DW_OP_plus), $rbx, $rsi 15# CHECK-LABEL: bb.1: 16# CHECK: DBG_VALUE_LIST ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0, 17# CHECK-SAME: DW_OP_LLVM_arg, 1, DW_OP_plus), $rbx, $rsi 18# CHECK: $rbp = COPY killed $rsi 19# CHECK-NEXT: DBG_VALUE_LIST ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0, 20# CHECK-SAME: DW_OP_LLVM_arg, 1, DW_OP_plus), $rbx, $rbp 21# CHECK-LABEL: bb.2: 22# CHECK: DBG_VALUE_LIST ![[VAR]], !DIExpression(DW_OP_LLVM_arg, 0, 23# CHECK-SAME: DW_OP_LLVM_arg, 1, DW_OP_plus), $rbx, $rbp 24--- | 25 ; ModuleID = 'test.cpp' 26 source_filename = "test.cpp" 27 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 28 target triple = "x86_64-unknown-linux-gnu" 29 30 ; Function Attrs: norecurse nounwind readnone uwtable 31 define dso_local i32 @_Z3fooii(i32 %a, i32 %b) local_unnamed_addr !dbg !7 { 32 entry: 33 ret i32 0, !dbg !17 34 } 35 36 ; Function Attrs: nounwind readnone speculatable willreturn 37 declare void @llvm.dbg.value(metadata, metadata, metadata) 38 39 !llvm.dbg.cu = !{!0} 40 !llvm.module.flags = !{!3, !4, !5} 41 !llvm.ident = !{!6} 42 43 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 11.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 44 !1 = !DIFile(filename: "test.cpp", directory: "/") 45 !2 = !{} 46 !3 = !{i32 7, !"Dwarf Version", i32 4} 47 !4 = !{i32 2, !"Debug Info Version", i32 3} 48 !5 = !{i32 1, !"wchar_size", i32 4} 49 !6 = !{!"clang version 11.0.0"} 50 !7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooii", scope: !1, file: !1, line: 2, type: !8, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11) 51 !8 = !DISubroutineType(types: !9) 52 !9 = !{!10, !10, !10} 53 !10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 54 !11 = !{!12, !13, !14} 55 !12 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 2, type: !10) 56 !13 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !1, line: 2, type: !10) 57 !14 = !DILocalVariable(name: "c", scope: !7, file: !1, line: 3, type: !10) 58 !15 = !DILocation(line: 0, scope: !7) 59 !16 = !DILocation(line: 4, column: 12, scope: !7) 60 !17 = !DILocation(line: 4, column: 3, scope: !7) 61 62... 63--- 64name: _Z3fooii 65fixedStack: 66 - { id: 0, type: spill-slot, offset: -32, size: 8, alignment: 16, stack-id: default, 67 callee-saved-register: '$rbx', callee-saved-restored: true } 68 - { id: 1, type: spill-slot, offset: -16, size: 8, alignment: 16, stack-id: default, 69 callee-saved-register: '$rbp', callee-saved-restored: true } 70body: | 71 bb.0.entry: 72 liveins: $rdi, $rsi 73 74 DBG_VALUE_LIST !14, !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus), $rdi, $rsi, debug-location !15 75 $rbx = COPY killed $rdi 76 $rdi = MOV64ri 0 77 JMP_1 %bb.1 78 79 bb.1: 80 liveins: $rbx, $rsi 81 $rbp = COPY killed $rsi 82 $rsi = MOV64ri 0 83 JMP_1 %bb.2 84 85 bb.2: 86 liveins: $rbx, $rbp 87 RET64 $rbp, debug-location !17 88 89... 90 91