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# RUN: llc -O0 -mtriple arm64-- -run-pass=instruction-select -global-isel %s -o - | FileCheck %s
--- |
target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
define void @test_dbg_value(i32 %a) !dbg !5 {
%tmp0 = add i32 %a, %a
call void @llvm.dbg.value(metadata i32 %tmp0, i64 0, metadata !7, metadata !9), !dbg !10
ret void
}
define void @test_dbg_value_dead(i32 %a) !dbg !11 {
call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !12, metadata !9), !dbg !13
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, variables: !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 = !DIExpression()
!10 = !DILocation(line: 1, column: 1, scope: !5)
!11 = 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, variables: !2)
!12 = !DILocalVariable(name: "in", arg: 1, scope: !11, file: !1, line: 1, type: !8)
!13 = !DILocation(line: 1, column: 1, scope: !11)
...
---
# CHECK-LABEL: name: test_dbg_value
name: test_dbg_value
legalized: true
regBankSelected: true
body: |
bb.0:
liveins: %w0
%0:gpr(s32) = COPY %w0
%1:gpr(s32) = G_ADD %0, %0
%w0 = COPY %1(s32)
; CHECK: %0 = COPY %w0
; CHECK-NEXT: %1 = ADDWrr %0, %0
; CHECK-NEXT: %w0 = COPY %1
; CHECK-NEXT: DBG_VALUE debug-use %1, debug-use _, !7, !9, debug-location !10
DBG_VALUE debug-use %1(s32), debug-use _, !7, !9, debug-location !10
...
---
# CHECK-LABEL: name: test_dbg_value_dead
name: test_dbg_value_dead
legalized: true
regBankSelected: true
body: |
bb.0:
liveins: %w0
%0:gpr(s32) = COPY %w0
; CHECK-NOT: COPY
; CHECK: DBG_VALUE debug-use _, debug-use _, !7, !9, debug-location !10
DBG_VALUE debug-use %0(s32), debug-use _, !7, !9, debug-location !10
...
|
