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08fbde827c
The debug-use flag must be set exactly for uses on DBG_VALUEs. This is so obvious that it can be trivially inferred while parsing. This will reduce noise when printing while omitting an information that has little value to the user. The parser will keep recognizing the flag for compatibility with old `.mir` files. Differential Revision: https://reviews.llvm.org/D53903 llvm-svn: 345671
45 lines
1.7 KiB
YAML
45 lines
1.7 KiB
YAML
# RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect %s -o - | FileCheck %s
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--- |
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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define void @test_dbg_value() !dbg !5 {
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; Keep the dbg metadata live by referencing it in the IR.
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call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !DIExpression()), !dbg !9
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ret void
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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}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "llvm", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test.ll", directory: "/tmp")
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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 = distinct !DISubprogram(name: "test_dbg_value", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!6 = !DISubroutineType(types: !2)
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!7 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !8)
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !DILocation(line: 1, column: 1, scope: !5)
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...
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---
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# CHECK-LABEL: name: test_dbg_value
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name: test_dbg_value
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legalized: true
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# CHECK: registers:
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# CHECK-NEXT: - { id: 0, class: gpr, preferred-register: '' }
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body: |
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bb.0:
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liveins: $w0
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%0:_(s32) = COPY $w0
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; CHECK: DBG_VALUE %0(s32), $noreg, !7, !DIExpression(), debug-location !9
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DBG_VALUE %0(s32), $noreg, !7, !DIExpression(), debug-location !9
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; CHECK: DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
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DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
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...
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