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# RUN: llc -O0 -mtriple arm64-- -run-pass=regbankselect %s -o - | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
define void @test_dbg_value() !dbg !5 {
; Keep the dbg metadata live by referencing it in the IR.
call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !7, metadata !DIExpression()), !dbg !9
ret void
}
declare void @llvm.dbg.value(metadata, i64, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "llvm", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
!1 = !DIFile(filename: "test.ll", directory: "/tmp")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!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)
!6 = !DISubroutineType(types: !2)
!7 = !DILocalVariable(name: "in", arg: 1, scope: !5, file: !1, line: 1, type: !8)
!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!9 = !DILocation(line: 1, column: 1, scope: !5)
...
---
# CHECK-LABEL: name: test_dbg_value
name: test_dbg_value
legalized: true
# CHECK: registers:
# CHECK-NEXT: - { id: 0, class: gpr, preferred-register: '' }
body: |
bb.0:
liveins: $w0
%0:_(s32) = COPY $w0
; CHECK: DBG_VALUE %0(s32), $noreg, !7, !DIExpression(), debug-location !9
DBG_VALUE %0(s32), $noreg, !7, !DIExpression(), debug-location !9
; CHECK: DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
DBG_VALUE $noreg, 0, !7, !DIExpression(), debug-location !9
...
|
