mirror of
https://github.com/RPCS3/llvm.git
synced 2026-07-25 04:35:32 -04:00
Jonas Devlieghere
45b741c841
This patch adds dumping of line table instructions as well as the final state at each specified pc value in verbose mode. This is essentially the same as the default in Darwin's dwarfdump. Dumping the actual line table opcodes can be particularly useful for something like debugging a bad `.debug_line` section. Differential revision: https://reviews.llvm.org/D37971 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313910 91177308-0d34-0410-b5e6-96231b3b80d8
122 lines
5.0 KiB
YAML
122 lines
5.0 KiB
YAML
# RUN: llc -filetype=obj -o - %s | llvm-dwarfdump -a - | FileCheck %s
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#
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# This testcase has an implicit def pseudo-iunstruction with a debug location.
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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_low_pc (0x0000000000000000)
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# CHECK-NOT: DW_TAG
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# CHECK: DW_AT_specification {{.*}} "_ZN1C5m_fn3Ev"
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# CHECK-NOT: DW_TAG
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# Here should not be an inlined subroutine with 0 length.
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# CHECK: NULL
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#
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# CHECK: Address Line Column File ISA Discriminator Flags
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# CHECK-NEXT: ---
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# CHECK-NEXT: 25 0 1 0 0 is_stmt
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# CHECK-NEXT: 29 28 1 0 0 is_stmt prologue_end
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# CHECK-NEXT: 29 28 1 0 0 is_stmt end_sequence
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--- |
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source_filename = "t.ll"
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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-macosx"
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%class.E = type { %class.D }
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%class.D = type { %class.B }
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%class.B = type { %class.A, %class.A }
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%class.A = type { i8 }
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%class.C = type <{ %class.E*, %class.B, [2 x i8] }>
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@a = local_unnamed_addr global %class.E* null, align 4
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define i32 @_ZN1C5m_fn3Ev(%class.C* nocapture) local_unnamed_addr align 2 !dbg !6 {
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%2 = alloca %class.B, align 1
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%3 = load %class.E*, %class.E** @a, align 4
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%4 = icmp eq %class.E* %3, null
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br i1 %4, label %10, label %5
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; <label>:5: ; preds = %1
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%6 = bitcast %class.C* %0 to %class.D**
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%7 = load %class.D*, %class.D** %6, align 4
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%8 = bitcast %class.D* %7 to i8*
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%9 = load i8, i8* %8, align 1
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br label %10
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; <label>:10: ; preds = %5, %1
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%11 = phi i8 [ %9, %5 ], [ undef, %1 ], !dbg !10
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%12 = getelementptr inbounds %class.C, %class.C* %0, i32 0, i32 1, i32 0, i32 0
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store i8 %11, i8* %12, align 1, !dbg !14
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ret i32 undef
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "Apple LLVM version 8.1.0 (clang-802.0.30.3)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !2)
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!1 = !DIFile(filename: "test.ii", directory: "/")
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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 = !{i32 1, !"PIC Level", i32 2}
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!6 = distinct !DISubprogram(name: "m_fn3", linkageName: "_ZN1C5m_fn3Ev", scope: !7, file: !1, line: 25, type: !8, isLocal: false, isDefinition: true, scopeLine: 25, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !9, variables: !2)
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!7 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "C", file: !1, line: 14, size: 64, align: 32, elements: !2, identifier: "_ZTS1C")
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!8 = !DISubroutineType(types: !2)
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!9 = !DISubprogram(name: "m_fn3", linkageName: "_ZN1C5m_fn3Ev", scope: !7, file: !1, line: 15, type: !8, isLocal: false, isDefinition: false, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: true)
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!10 = !DILocation(line: 99, column: 9, scope: !11, inlinedAt: !14)
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!11 = distinct !DISubprogram(name: "m_fn1", linkageName: "_ZN1A5m_fn1Ev", scope: !12, file: !1, line: 5, type: !8, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: true, unit: !0, declaration: !13, variables: !2)
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!12 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !1, line: 1, size: 8, align: 8, elements: !2, identifier: "_ZTS1A")
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!13 = !DISubprogram(name: "m_fn1", linkageName: "_ZN1A5m_fn1Ev", scope: !12, file: !1, line: 5, type: !8, isLocal: false, isDefinition: false, scopeLine: 5, flags: DIFlagPublic | DIFlagPrototyped, isOptimized: true)
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!14 = !DILocation(line: 29, column: 28, scope: !6)
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...
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---
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name: _ZN1C5m_fn3Ev
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alignment: 4
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exposesReturnsTwice: false
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legalized: false
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regBankSelected: false
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selected: false
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tracksRegLiveness: true
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liveins:
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- { reg: '%rdi' }
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frameInfo:
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isFrameAddressTaken: false
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isReturnAddressTaken: false
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hasStackMap: false
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hasPatchPoint: false
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stackSize: 0
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offsetAdjustment: 0
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maxAlignment: 8
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adjustsStack: false
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hasCalls: false
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maxCallFrameSize: 0
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hasOpaqueSPAdjustment: false
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hasVAStart: false
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hasMustTailInVarArgFunc: false
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#stack:
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# - { id: 0, name: '<unnamed alloca>', offset: -16, size: 2, alignment: 8 }
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body: |
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bb.0 (%ir-block.1):
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: %rdi
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CMP64mi8 %rip, 1, _, @a, _, 0, implicit-def %eflags :: (dereferenceable load 8 from @a, align 4)
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JE_1 %bb.1, implicit %eflags
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bb.2 (%ir-block.5):
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liveins: %rdi
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%rax = MOV64rm %rdi, 1, _, 0, _ :: (load 8 from %ir.6, align 4)
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%al = MOV8rm killed %rax, 1, _, 0, _ :: (load 1 from %ir.8)
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MOV8mr killed %rdi, 1, _, 8, _, killed %al, debug-location !14 :: (store 1 into %ir.12)
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RETQ undef %eax
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bb.1:
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liveins: %rdi
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%al = IMPLICIT_DEF debug-location !10
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MOV8mr killed %rdi, 1, _, 8, _, killed %al, debug-location !14 :: (store 1 into %ir.12)
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RETQ undef %eax
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...
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