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llvm-project/llvm/test/Transforms/SafeStack/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
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_ARG:.*]], metadata ![[EXPR_ARG:.*]])
; CHECK-NOT: call void @llvm.dbg.declare
; CHECK: call void @llvm.dbg.declare(metadata i8* %[[USP]], metadata ![[VAR_LOCAL:.*]], metadata ![[EXPR_LOCAL:.*]])
; 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
; CHECK-DAG: ![[EXPR_ARG]] = !DIExpression(DW_OP_deref, DW_OP_minus, 104
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"
; CHECK-DAG: ![[EXPR_LOCAL]] = !DIExpression(DW_OP_deref, DW_OP_minus, 208
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)
[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
!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, variables: !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)