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61 lines
2.5 KiB
61 lines
2.5 KiB
; RUN: llc %s -filetype=obj -o - | llvm-dwarfdump -v - | FileCheck %s
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; Test that multi-DW_OP_piece expressions are emitted for FI variables.
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;
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_subprogram
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; CHECK: DW_AT_abstract_origin
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; CHECK: DW_TAG_variable
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; CHECK-NEXT: DW_AT_location [DW_FORM_exprloc] (DW_OP_fbreg -4, DW_OP_piece 0x2, DW_OP_fbreg -8, DW_OP_piece 0x2)
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; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a"
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; Inlined variable, not to be merged.
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_inlined_subroutine
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; CHECK-NOT: DW_TAG
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; CHECK: DW_TAG_variable
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; CHECK-NEXT: DW_AT_location
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; CHECK-NEXT: DW_AT_abstract_origin {{.*}}"a"
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; ModuleID = '/tmp/t.c'
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source_filename = "/tmp/t.c"
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.12.0"
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; Function Attrs: noinline nounwind optnone ssp uwtable
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define void @f() #0 !dbg !8 {
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entry:
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%a = alloca i16, align 4
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%b = alloca i16, align 4
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call void @llvm.dbg.declare(metadata i16* %a, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 16)), !dbg !14
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store i16 1, i16* %a, align 4, !dbg !14
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call void @llvm.dbg.declare(metadata i16* %b, metadata !11, metadata !DIExpression(DW_OP_LLVM_fragment, 16, 16)), !dbg !16
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call void @llvm.dbg.declare(metadata i16* %a, metadata !11, metadata !13), !dbg !17
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store i16 2, i16* %b, align 4, !dbg !17
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ret void
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { noinline nounwind optnone ssp uwtable }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "adrian", emissionKind: FullDebug)
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!1 = !DIFile(filename: "/tmp/t.c", directory: "/")
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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 = !{i32 7, !"PIC Level", i32 2}
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!8 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: false, unit: !0)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null}
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!11 = !DILocalVariable(name: "a", scope: !8, file: !1, line: 2, type: !12)
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!12 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!13 = !DIExpression()
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!14 = !DILocation(line: 2, column: 7, scope: !8)
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!15 = !DILocalVariable(name: "b", scope: !8, file: !1, line: 3, type: !12)
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!16 = !DILocation(line: 3, column: 7, scope: !8)
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!17 = !DILocation(line: 3, column: 7, scope: !8, inlinedAt: !16)
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