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llvm-project/llvm/test/Transforms/SafeStack/X86/debug-loc.ll

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Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
; Test debug location for the local variables moved onto the unsafe stack.
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
%struct.S = type { [100 x i8] }
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; Function Attrs: safestack uwtable
define void @f(%struct.S* byval align 8 %zzz) #0 !dbg !12 {
; CHECK: define void @f
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
entry:
; CHECK: %[[USP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
%xxx = alloca %struct.S, align 1
call void @llvm.dbg.declare(metadata %struct.S* %zzz, metadata !18, metadata !19), !dbg !20
call void @llvm.dbg.declare(metadata %struct.S* %xxx, metadata !21, metadata !19), !dbg !22
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; dbg.declare for %zzz and %xxx are gone; replaced with dbg.declare based off the unsafe stack pointer
; CHECK-NOT: call void @llvm.dbg.declare
Parse and print DIExpressions inline to ease IR and MIR testing Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
2017-08-24 04:31:27 +08:00
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_ARG:.*]], metadata !DIExpression(DW_OP_constu, 104, DW_OP_minus))
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; CHECK-NOT: call void @llvm.dbg.declare
Parse and print DIExpressions inline to ease IR and MIR testing Summary: Most DIExpressions are empty or very simple. When they are complex, they tend to be unique, so checking them inline is reasonable. This also avoids the need for CodeGen passes to append to the llvm.dbg.mir named md node. See also PR22780, for making DIExpression not be an MDNode. Reviewers: aprantl, dexonsmith, dblaikie Subscribers: qcolombet, javed.absar, eraman, hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D37075 llvm-svn: 311594
2017-08-24 04:31:27 +08:00
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_LOCAL:.*]], metadata !DIExpression(DW_OP_constu, 208, DW_OP_minus))
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; CHECK-NOT: call void @llvm.dbg.declare
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
call void @Capture(%struct.S* %zzz), !dbg !23
call void @Capture(%struct.S* %xxx), !dbg !24
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; dbg.declare appears before the first use
; CHECK: call void @Capture
; CHECK: call void @Capture
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
ret void, !dbg !25
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
}
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; CHECK-DAG: ![[VAR_ARG]] = !DILocalVariable(name: "zzz"
; 100 aligned up to 8
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; CHECK-DAG: ![[VAR_LOCAL]] = !DILocalVariable(name: "xxx"
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
declare void @Capture(%struct.S*) #2
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
attributes #0 = { safestack uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
attributes #2 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
!llvm.dbg.cu = !{!0}
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!llvm.module.flags = !{!15, !16}
!llvm.ident = !{!17}
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
[PR27284] Reverse the ownership between DICompileUnit and DISubprogram. Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446
2016-04-15 23:57:41 +08:00
!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.8.0 (trunk 254019) (llvm/trunk 254036)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3)
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!1 = !DIFile(filename: "../llvm/2.cc", directory: "/code/build-llvm")
Fix debug info with SafeStack. llvm-svn: 248933
2015-10-01 03:55:43 +08:00
!2 = !{}
!3 = !{!4}
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !1, line: 4, size: 800, align: 8, elements: !5, identifier: "_ZTS1S")
!5 = !{!6}
DebugInfo: Remove MDString-based type references Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html llvm-svn: 267296
2016-04-24 05:08:00 +08:00
!6 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !4, file: !1, line: 5, baseType: !7, size: 800, align: 8)
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!7 = !DICompositeType(tag: DW_TAG_array_type, baseType: !8, size: 800, align: 8, elements: !9)
!8 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
!9 = !{!10}
!10 = !DISubrange(count: 100)
[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label. In order to set breakpoints on labels and list source code around labels, we need collect debug information for labels, i.e., label name, the function label belong, line number in the file, and the address label located. In order to keep these information in LLVM IR and to allow backend to generate debug information correctly. We create a new kind of metadata for labels, DILabel. The format of DILabel is !DILabel(scope: !1, name: "foo", file: !2, line: 3) We hope to keep debug information as much as possible even the code is optimized. So, we create a new kind of intrinsic for label metadata to avoid the metadata is eliminated with basic block. The intrinsic will keep existing if we keep it from optimized out. The format of the intrinsic is llvm.dbg.label(metadata !1) It has only one argument, that is the DILabel metadata. The intrinsic will follow the label immediately. Backend could get the label metadata through the intrinsic's parameter. We also create DIBuilder API for labels to be used by Frontend. Frontend could use createLabel() to allocate DILabel objects, and use insertLabel() to insert llvm.dbg.label intrinsic in LLVM IR. Differential Revision: https://reviews.llvm.org/D45024 Patch by Hsiangkai Wang. llvm-svn: 331841
2018-05-09 10:40:45 +08:00
!12 = distinct !DISubprogram(name: "f", linkageName: "_Z1f1S", scope: !1, file: !1, line: 10, type: !13, isLocal: false, isDefinition: true, scopeLine: 10, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!13 = !DISubroutineType(types: !14)
DebugInfo: Remove MDString-based type references Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html llvm-svn: 267296
2016-04-24 05:08:00 +08:00
!14 = !{null, !4}
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!15 = !{i32 2, !"Dwarf Version", i32 4}
!16 = !{i32 2, !"Debug Info Version", i32 3}
!17 = !{!"clang version 3.8.0 (trunk 254019) (llvm/trunk 254036)"}
DebugInfo: Remove MDString-based type references Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html llvm-svn: 267296
2016-04-24 05:08:00 +08:00
!18 = !DILocalVariable(name: "zzz", arg: 1, scope: !12, file: !1, line: 10, type: !4)
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!19 = !DIExpression()
!20 = !DILocation(line: 10, column: 10, scope: !12)
DebugInfo: Remove MDString-based type references Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html llvm-svn: 267296
2016-04-24 05:08:00 +08:00
!21 = !DILocalVariable(name: "xxx", scope: !12, file: !1, line: 11, type: !4)
[safestack] Protect byval function arguments. Detect unsafe byval function arguments and move them to the unsafe stack. llvm-svn: 254353
2015-12-01 08:40:05 +08:00
!22 = !DILocation(line: 11, column: 5, scope: !12)
!23 = !DILocation(line: 12, column: 3, scope: !12)
!24 = !DILocation(line: 13, column: 3, scope: !12)
!25 = !DILocation(line: 14, column: 1, scope: !12)