# CHECK: ![[ARG_A:.*]] = !DILocalVariable(name: "a"
# CHECK: ![[ARG_B:.*]] = !DILocalVariable(name: "b"
# CHECK: ![[ARG_C:.*]] = !DILocalVariable(name: "c"
-# CHECK: DBG_VALUE $edi, $noreg, ![[ARG_A]], !DIExpression(DW_OP_LLVM_entry_value, 1)
# CHECK: DBG_VALUE $edx, $noreg, ![[ARG_C]], !DIExpression(DW_OP_LLVM_entry_value, 1)
# CHECK: DBG_VALUE $edi, $noreg, ![[ARG_A]], !DIExpression(DW_OP_LLVM_entry_value, 1)
# CHECK-NOT: DBG_VALUE $esi, $noreg, ![[ARG_B]], !DIExpression(DW_OP_LLVM_entry_value, 1)
--- /dev/null
+--- |
+ ; RUN: llc %s -march=x86-64 -run-pass=livedebugvalues -o - | FileCheck %s -implicit-check-not=DBG_VALUE
+
+ ; Check that live-debug-values ignores meta instructions.
+
+ ; CHECK-LABEL: bb.0.entry:
+ ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
+ ; CHECK-LABEL: bb.1.bb1:
+ ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
+ ; CHECK-LABEL: bb.2.bb2:
+ ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
+ ; CHECK-LABEL: bb.3.bb3:
+ ; CHECK: DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
+
+ define i32 @_Z8bb_to_bb() local_unnamed_addr !dbg !12 {
+ entry:
+ br label %bb1, !dbg !17
+ bb1:
+ br label %bb2, !dbg !17
+ bb2:
+ br label %bb3, !dbg !17
+ bb3:
+ ret i32 0, !dbg !17
+ }
+
+ !llvm.dbg.cu = !{!0}
+ !llvm.module.flags = !{!7, !8, !9, !10}
+ !llvm.ident = !{!11}
+ !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 10.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3, debugInfoForProfiling: true, nameTableKind: None)
+ !1 = !DIFile(filename: "main.cpp", directory: "F:\")
+ !2 = !{}
+ !3 = !{!4}
+ !4 = !DIGlobalVariableExpression(var: !5, expr: !DIExpression())
+ !5 = distinct !DIGlobalVariable(name: "start", scope: !0, file: !1, line: 4, type: !6, isLocal: false, isDefinition: true)
+ !6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+ !7 = !{i32 2, !"Dwarf Version", i32 4}
+ !8 = !{i32 2, !"Debug Info Version", i32 3}
+ !9 = !{i32 1, !"wchar_size", i32 2}
+ !10 = !{i32 7, !"PIC Level", i32 2}
+ !11 = !{!"clang version 10.0.0"}
+ !12 = distinct !DISubprogram(name: "bb_to_bb", linkageName: "bb_to_bb", scope: !1, file: !1, line: 6, type: !13, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
+ !13 = !DISubroutineType(types: !14)
+ !14 = !{!6, !6}
+ !15 = !{!16}
+ !16 = !DILocalVariable(name: "myVar", scope: !12, file: !1, line: 7, type: !6)
+ !17 = !DILocation(line: 10, scope: !12)
+
+...
+---
+name: _Z8bb_to_bb
+body: |
+ bb.0.entry:
+ successors: %bb.1
+ $ebx = MOV32ri 0, debug-location !17
+ DBG_VALUE $ebx, $noreg, !16, !DIExpression(), debug-location !17
+ bb.1.bb1:
+ successors: %bb.2
+ renamable $ebx = KILL $ebx
+ bb.2.bb2:
+ successors: %bb.3
+ renamable $ebx = KILL $ebx
+ bb.3.bb3:
+ RETQ $eax, debug-location !17
+...