aaf6c7b05c
The register operand of DBG_VALUE is not selected to a proper register bank in both AArch64 and X86. This would cause getRegClass crash after global ISel. After discussion, we think the MIR should assume all vritual register should be set proper register class after global ISel, so this patch is to fix the gap of DBG_VALUE for AArch64 and X86. Differential Revision: https://reviews.llvm.org/D129037
45 lines
2.0 KiB
LLVM
45 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-linux-gnu -O0 -global-isel -stop-after instruction-select | FileCheck %s
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define void @foo(i32 %n) !dbg !7 {
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; CHECK-LABEL: name: foo
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; CHECK: bb.1.entry:
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; CHECK-NEXT: liveins: $edi
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; CHECK-NEXT: {{ $}}
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; CHECK-NEXT: DBG_VALUE %2:gr32, $noreg, !12, !DIExpression(), debug-location !19
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; CHECK-NEXT: RET 0, debug-location !20
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entry:
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%m = mul i32 %n, 13
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call void @llvm.dbg.value(metadata i32 %m, i64 0, metadata !12, metadata !19), !dbg !20
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ret void, !dbg !21
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}
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 5.0.1", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "vla.c", directory: "/path/to")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 5.0.1"}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 20, type: !8, isLocal: false, isDefinition: true, scopeLine: 20, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13, !15}
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!12 = !DILocalVariable(name: "n", arg: 1, scope: !7, file: !1, line: 20, type: !10)
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!13 = !DILocalVariable(name: "vla_expr", scope: !7, file: !1, line: 21, type: !14)
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!14 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!15 = !DILocalVariable(name: "vla", scope: !7, file: !1, line: 21, type: !16)
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!16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !10, align: 32, elements: !17)
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!17 = !{!18, !18}
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!18 = !DISubrange(count: !13)
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!19 = !DIExpression()
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!20 = !DILocation(line: 20, column: 14, scope: !7)
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!21 = !DILocation(line: 22, column: 1, scope: !7)
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