2018-06-28 23:49:24 +02:00
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; RUN: llc -verify-machineinstrs -filetype=obj -mtriple=aarch64-- \
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2018-06-20 20:41:11 +02:00
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; RUN: -enable-machine-outliner < %s | llvm-dwarfdump - | FileCheck %s
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; Ensure that the MachineOutliner produces valid DWARF when it creates outlined
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; functions. Check that the outlined function has a subprogram, and that the
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; expected DWARF attributes are present.
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; The outlined function appears after bar. Skip past the functions we don't
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; care about.
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; CHECK: DW_TAG_compile_unit
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; CHECK-DAG: DW_AT_name ("foo")
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; CHECK-DAG: DW_AT_name ("p")
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; Check the high address of bar. This is one past the end of bar. It should be
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; the beginning of the outlined function.
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; CHECK: DW_AT_high_pc ([[ONE_PAST_BAR:0x[a-f0-9]+]])
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; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29)
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; CHECK-NEXT: DW_AT_name ("bar")
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; Check the outlined function's DWARF.
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; CHECK-DAG: DW_TAG_subprogram
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; CHECK-NEXT: DW_AT_low_pc ([[ONE_PAST_BAR]])
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; CHECK-NEXT: DW_AT_high_pc (0x{{[0-9a-f]+}})
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; CHECK-NEXT: DW_AT_frame_base (DW_OP_reg29 W29)
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; CHECK-NEXT: DW_AT_MIPS_linkage_name ("[[NAME:OUTLINED_FUNCTION_[0-9]+]]")
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; CHECK-NEXT: DW_AT_name ("[[NAME]]")
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; CHECK-NEXT: DW_AT_artificial (0x01)
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; CHECK-NEXT: DW_AT_external (0x01)
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define void @foo() #0 !dbg !8 {
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entry:
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%p = alloca i32*, align 8
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call void @llvm.dbg.declare(metadata i32** %p, metadata !11, metadata !DIExpression()), !dbg !14
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%0 = load i32*, i32** %p, align 8, !dbg !15
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%incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !15
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store i32* %incdec.ptr, i32** %p, align 8, !dbg !15
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call void @foo(), !dbg !16
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ret void, !dbg !17
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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define void @bar() #0 !dbg !18 {
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entry:
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%p = alloca i32*, align 8
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call void @llvm.dbg.declare(metadata i32** %p, metadata !19, metadata !DIExpression()), !dbg !20
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%0 = load i32*, i32** %p, align 8, !dbg !21
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%incdec.ptr = getelementptr inbounds i32, i32* %0, i32 1, !dbg !21
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store i32* %incdec.ptr, i32** %p, align 8, !dbg !21
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call void @foo(), !dbg !22
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ret void, !dbg !23
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}
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2019-12-25 00:52:21 +01:00
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attributes #0 = { nounwind ssp uwtable "frame-pointer"="all" }
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2018-06-20 20:41:11 +02:00
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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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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "something.c", directory: "somewhere")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 2}
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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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!7 = !{!"clang"}
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!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null}
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!11 = !DILocalVariable(name: "p", scope: !8, file: !1, line: 2, type: !12)
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
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!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!14 = !DILocation(line: 2, column: 8, scope: !8)
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!15 = !DILocation(line: 3, column: 4, scope: !8)
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!16 = !DILocation(line: 4, column: 3, scope: !8)
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!17 = !DILocation(line: 5, column: 1, scope: !8)
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!18 = distinct !DISubprogram(name: "bar", scope: !1, file: !1, line: 7, type: !9, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
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!19 = !DILocalVariable(name: "p", scope: !18, file: !1, line: 9, type: !12)
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!20 = !DILocation(line: 9, column: 8, scope: !18)
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!21 = !DILocation(line: 10, column: 4, scope: !18)
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!22 = !DILocation(line: 11, column: 3, scope: !18)
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!23 = !DILocation(line: 12, column: 1, scope: !18)
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