| Commit message (Collapse) | Author | Age | Files | Lines |
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This overload is only used in one place and having static overloads for
all methods that only do an additional clang::ASTContext -> ClangASTContext
conversion is just not sustainable.
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Summary:
This is some really shady code. It's supposed to kick in after an expression already failed and then try to look
up "unknown types" that for some undocumented reason can't be resolved during/before parsing. Beside the
fact that we never mark any type as `EVUnknownType` in either swift-lldb or lldb (which means this code is unreachable),
this code doesn't even make the expression evaluation succeed if if would ever be executed but instead seems
to try to load more debug info that maybe any following expression evaluations might succeed.
This patch removes ClangExpressionDeclMap::ResolveUnknownTypes and the related data structures/checks/calls.
Reviewers: davide
Reviewed By: davide
Subscribers: aprantl, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D70388
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The current file doesn't follow the 80 character limit and uses this
cramped comment style that is hard to read.
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Builtins are rarely if ever accessed via the Preprocessor. They are
typically found on the ASTContext, so there should be no performance
penalty to using a pointer indirection to store the builtin context.
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Three uses of try_lock intentionally ignore the result, as explained in
the comment. Make that explicit with a void cast.
Add what appears to be a missing return in the clang expression parser
code. It's a functional change, but presumably the right one.
Differential Revision: https://reviews.llvm.org/D70281
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I wanted to further simplify ParseTypeFromClangModule by replacing the
hand-rolled loop with ForEachExternalModule, and then realized that
ForEachExternalModule also had the problem of visiting the same leaf
node an exponential number of times in the worst-case. This adds a set
of searched_symbol_files set to the function as well as the ability to
early-exit from it.
Differential Revision: https://reviews.llvm.org/D70215
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Summary:
swift-lldb currently has to patch the ExpressionKind enum to add support for Swift expressions. If we implement LLVM's RTTI
with a static ID variable instead of a centralised enum we can drop that patch.
Reviewers: labath, davide
Reviewed By: labath
Subscribers: JDevlieghere, lldb-commits
Tags: #upstreaming_lldb_s_downstream_patches, #lldb
Differential Revision: https://reviews.llvm.org/D70070
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Summary:
This function is only used internally by ClangExpressionParser. By putting it in the ExpressionParser class all languages
that implement ExpressionParser::Parse have to share the same signature (which forces us in downstream to add
swift-specific arguments to ExpressionParser::Parse which then propagate to ClangExpressionParser and so on).
Reviewers: davide
Subscribers: JDevlieghere, lldb-commits
Tags: #upstreaming_lldb_s_downstream_patches, #lldb
Differential Revision: https://reviews.llvm.org/D69710
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of relying on it being accessible.
Summary:
Motivated by Swift using the materializer in a few places which requires us to add this getter ourselves.
We also need a setter, but let's keep this minimal to unblock the downstream reverts in Swift.
Reviewers: davide
Reviewed By: davide
Subscribers: abidh, JDevlieghere, lldb-commits
Tags: #upstreaming_lldb_s_downstream_patches, #lldb
Differential Revision: https://reviews.llvm.org/D69714
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This patch removes the size_t return value and the append parameter
from the remainder of the Find.* functions in LLDB's internal API. As
in the previous patches, this is motivated by the fact that these
parameters aren't really used, and in the case of the append parameter
were frequently implemented incorrectly.
Differential Revision: https://reviews.llvm.org/D69119
llvm-svn: 375160
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that runs on arm64 ISA targets, specifically
Apple watches.
Differential Revision: https://reviews.llvm.org/D68858
llvm-svn: 375032
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This adapts LLDB for https://reviews.llvm.org/D68055.
Darwin's libC headers expect the GNUC macro to be set.
llvm-svn: 374591
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CppModuleConfiguration
CppModuleConfiguration is the most likely point of failure when we have weird
setups where we fail to load a C++ module. With this logging it should be easier
to figure out why we can't find a valid configuration as the configuration only
depends on the list of file paths.
llvm-svn: 374350
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llvm-svn: 374307
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llvm-svn: 374289
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them.
When playing with the C++ module prototype I noticed I can get LLDB to crash
by making a result type that depends on __make_integer_seq (a BuiltinTemplate)
which is not supported by the ASTImporter yet. This causes the ASTImporter to emit
a diagnostic when copying the type to the ScratchASTContext. As deporting the result
type is done after we are done parsing and the Clang's diagnostic engine asserts that
it can only be used during parsing, it crashes LLDB while trying to render the diagnostic
in the HandleDiagnostic method of ClangDiagnosticManagerAdapter.
This patch just moves the HandleDiagnostic call to Clang behind our check that we still
have a DiagnosticManager (which we remove after parsing) which prevents the assert
from firing. We also shouldn't ignore such diagnostics, so I added a log statement for
them.
There doesn't seem to way to test this as these diagnostic only happen when we copy
a node that's not supported by the ASTImporter which should never happen once
we can copy everything with the ASTImporter, so every test case we add here will
eventually become invalid.
(Note that most of this diff is just whitespace changes as we now use an early exit
instead of a huge 'if' block).
llvm-svn: 374145
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Link against clang-cpp dylib rather than split libs when
CLANG_LINK_CLANG_DYLIB is enabled.
Differential Revision: https://reviews.llvm.org/D68456
llvm-svn: 373734
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persistent AST
Summary:
As we figured out in D67803, importing declarations from a temporary ASTContext that were originally from a persistent ASTContext
causes a bunch of duplicated declarations where we end up having declarations in the target AST that have no associated ASTImporter that
can complete them.
I haven't figured out how/if we can solve this in the current way we do things in LLDB, but in the modern-type-lookup this is solvable
as we have a saner architecture with the ExternalASTMerger. As we can (hopefully) make modern-type-lookup the default mode in the future,
I would say we try fixing this issue here. As we don't use the hack that was reinstated in D67803 during modern-type-lookup, the test case for this
is essentially just printing any kind of container in `std::` as we would otherwise run into the issue that required a hack like D67803.
What this patch is doing in essence is that instead of importing a declaration from a temporary ASTContext, we instead check if the
declaration originally came from a persistent ASTContext (e.g. the debug information) and we directly import from there. The ExternalASTMerger
is already connected with ASTImporters to these different sources, so this patch is essentially just two parts:
1. Mark our temporary ASTContext/ImporterSource as temporary when we import from the expression AST.
2. If the ExternalASTMerger sees we import from the expression AST, instead of trying to import these temporary declarations, check if we
can instead import from the persistent ASTContext that is already connected. This ensures that all records from the persistent source actually
come from the persistent source and are minimally imported in a way that allows them to be completed later on in the target AST.
The next step is to run the ASTImporter for these temporary expressions with the MinimalImport mode disabled, but that's a follow up patch.
This patch fixes most test failures with modern-type-lookup enabled by default (down to 73 failing tests, which includes the 22 import-std-module tests
which need special treatment).
Reviewers: shafik, martong
Reviewed By: martong
Subscribers: aprantl, rnkovacs, christof, abidh, JDevlieghere, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68326
llvm-svn: 373711
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Summary:
This patch factors out File as an abstract base
class and moves most of its actual functionality into
a subclass called NativeFile. In the next patch,
I'm going to be adding subclasses of File that
don't necessarily have any connection to actual OS files,
so they will not inherit from NativeFile.
This patch was split out as a prerequisite for
https://reviews.llvm.org/D68188
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D68317
llvm-svn: 373564
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construction.
We have no use case in LLDB where we actually do want to change the ASTContext after
it the ClangASTContext has been constructed. All callers of setASTContext are just setting
the ASTContext directly after construction, so we might as well make this a Constructor
instead of supporting this tricky use case.
llvm-svn: 373330
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NFC preparation work for upcoming ExternalASTMerger patches.
llvm-svn: 373312
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This was originally a 'do { ... } while (false);' like in the rest
of the function, but the do was refactored into an 'if' without
also removing the trailing 'while(false);'
llvm-svn: 373206
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Summary:
This patch removes File::SetStream() and File::SetDescriptor(),
and replaces most direct uses of File with pointers to File.
Instead of calling SetStream() on a file, we make a new file and
replace it.
My ultimate goal here is to introduce a new API class SBFile, which
has full support for python io.IOStream file objects. These can
redirect read() and write() to python code, so lldb::Files will
need a way to dispatch those methods. Additionally it will need some
form of sharing and assigning files, as a SBFile will be passed in and
assigned to the main IO streams of the debugger.
In my prototype patch queue, I make File itself copyable and add a
secondary class FileOps to manage the sharing and dispatch. In that
case SBFile was a unique_ptr<File>.
(here: https://github.com/smoofra/llvm-project/tree/files)
However in review, Pavel Labath suggested that it be shared_ptr instead.
(here: https://reviews.llvm.org/D67793)
In order for SBFile to use shared_ptr<File>, everything else should
as well.
If this patch is accepted, I will make SBFile use a shared_ptr
I will remove FileOps from future patches and use subclasses of File
instead.
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67891
llvm-svn: 373090
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There is no ClangModulesDeclVendor on Linux so that cast is triggering an assert.
Let's just remove it as it just casts the type to itself.
llvm-svn: 372974
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In top level expressions, we don't have a m_source_code and we don't need to change
the source bounds (as no wrapping happend there). Fixes the test on the
sanitizer bot.
llvm-svn: 372817
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That's what we actually want to do. Might fix the Windows bot.
llvm-svn: 372729
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compiled
Summary:
At the moment, when trying to import the `std` module in LLDB, we look at the imported modules used in the compiled program
and try to infer the Clang configuration we need from the DWARF module-import. That was the initial idea but turned out to
cause a few problems or inconveniences:
* It requires that users compile their programs with C++ modules. Given how experimental C++ modules are makes this feature inaccessible
for many users. Also it means that people can't just get the benefits of this feature for free when we activate it by default
(and we can't just close all the associated bug reports).
* Relying on DWARF's imported module tags (that are only emitted by default on macOS) means this can only be used when using DWARF (and with -glldb on Linux).
* We essentially hardcoded the C standard library paths on some platforms (Linux) or just couldn't support this feature on other platforms (macOS).
This patch drops the whole idea of looking at the imported module DWARF tags and instead just uses the support files of the compilation unit.
If we look at the support files and see file paths that indicate where the C standard library and libc++ are, we can just create the module
configuration this information. This fixes all the problems above which means we can enable all the tests now on Linux, macOS and with other debug information
than what we currently had. The only debug information specific code is now the iteration over external type module when -gmodules is used (as `std` and also the
`Darwin` module are their own external type module with their own files).
The meat of this patch is the CppModuleConfiguration which looks at the file paths from the compilation unit and then figures out the include paths
based on those paths. It's quite conservative in that it only enables modules if we find a single C library and single libc++ library. It's still missing some
test mode where we try to compile an expression before we actually activate the config for the user (which probably also needs some caching mechanism),
but for now it works and makes the feature usable.
Reviewers: aprantl, shafik, jdoerfert
Reviewed By: aprantl
Subscribers: mgorny, abidh, JDevlieghere, lldb-commits
Tags: #c_modules_in_lldb, #lldb
Differential Revision: https://reviews.llvm.org/D67760
llvm-svn: 372716
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Summary:
The ClangModulesDeclVendor is currently interpreting all injected `@import` statements in our expression
wrapper as modules that the user has explicitly requested to be persistently loaded. As we inject
`@import` statements with our std module prototype, the ClangModulesDeclVendor will start compiling
and loading unrelated C++ modules because it thinks the user has requested that it should load them. As
the ClangModulesDeclVendor is lacking the setup to compile these modules (e.g. it lacks the include paths),
it will then actually just fail to compile them and cause the whole expression evaluation to fail. This causes
these tests to fail on systems that enable the ClangModulesDeclVendor (such as macOS).
This patch fixes this by preventing the ClangModulesDeclVendor from interpreting `@import` statements
in the wrapper source code. This is done by check if the import happens in the fake source file containing
our wrapper code (which implies it was generated by LLDB).
This patch doesn't reenable the tests as there is more work needed to get the tests running on macOS (D67760)
Reviewers: aprantl, shafik, jingham
Subscribers: lldb-commits
Tags: #c_modules_in_lldb, #lldb
Differential Revision: https://reviews.llvm.org/D61565
llvm-svn: 372690
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lvm_private::File::GetStream() can fail if m_options == 0
It's not clear from the header a File created with a descriptor will be
not be usable by many parts of LLDB unless SetOptions is also called,
but it is.
This is because those parts of LLDB rely on GetStream() to use the
file, and that in turn relies on calling fdopen on the descriptor. When
calling fdopen, GetStream relies on m_options to determine the access
mode. If m_options has never been set, GetStream() will fail.
This patch adds options as a required argument to File::SetDescriptor
and the corresponding constructor.
Patch by: Lawrence D'Anna
Differential revision: https://reviews.llvm.org/D67792
llvm-svn: 372652
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context (partly reverts D61333)
Summary:
In D61333 we dropped some code from ClangASTSource that checks if imported declarations
ended up in the right DeclContext. While this code wasn't tested by the test suite (or better, it was hit
by the test suite but we didn't have any checks that were affected) and the code seems pointless
(as usually Decls should end up in the right DeclContext), it actually broke the data formatters in LLDB
and causes a bunch of obscure bugs where structs suddenly miss all their members. The first report we got about
this was that printing a std::map doesn't work anymore when simply doing "expr m" (m is the std::map).
This patch reverts D61333 partly and reintroduces the check in a more stricter way (we actually check now that
we *move* the Decl and it is in a single DeclContext). This should fix all the problems we currently have until
we figure out how to properly fix the underlying issues. I changed the order of some std::map formatter tests
which is currently the most reliable way to test this problem (it's a tricky setup, see description below).
Fixes rdar://55502701 and rdar://55129537
--------------------------------------
Some more explanation what is actually going on and what is going wrong:
The situation we have is that if we have a `std::map m` and do a `expr m`, we end up seeing an empty map
(even if `m` has elements). The reason for this is that our data formatter sees that std::pair<int, int> has no
members. However, `frame var m` works just fine (and fixes all following `expr m` calls).
The reason for why `expr` breaks std::map is that we actually copy the std::map nodes in two steps in the
three ASTContexts that are involved: The debug information ASTContext (D-AST), the expression ASTContext
we created for the current expression (E-AST) and the persistent ASTContext we use for our $variables (P-AST).
When doing `expr m` we do a minimal import of `std::map` from D-AST to E-AST just do the type checking/codegen.
This copies std::map itself and does a minimal.import of `std::pair<int, int>` (that is, we don't actually import
the `first` and `second` members as we don't need them for anything). After the expression is done, we take
the expression result and copy it from E-AST to P-AST. This imports the E-AST's `std::pair` into P-AST which still
has no `first` and `second` as they are still undeserialized. Once we are in P-AST, the data formatter tries to
inspect `std::map` (and also `std::pair` as that's what the elements are) and it asks for the `std::pair` members.
We see that `std::pair` has undeserialized members and go to the ExternalASTSource to ask for them. However,
P-ASTs ExternalASTSource points to D-AST (and not E-AST, which `std::pair` came from). It can't point to E-AST
as that is only temporary and already gone (and also doesn't actually contain all decls we have in P-AST).
So we go to D-AST to get the `std::pair` members. The ASTImporter is asked to copy over `std::pair` members
and first checks if `std::pair` is already in P-AST. However, it only finds the std::pair we got from E-AST, so it
can't use it's map of already imported declarations and does a comparison between the `std::pair` decls we have
Because the ASTImporter thinks they are different declarations, it creates a second `std::pair` and fills in the
members `first` and `second` into the second `std::pair`. However, the data formatter is looking at the first
`std::pair` which still has no members as they are in the other decl. Now we pretend we have no declarations
and just print an empty map as a fallback.
The hack we had before fixed this issue by moving `first` and `second` to the first declaration which makes
the formatters happy as they can now see the members in the DeclContext they are querying.
Obviously this is a temporary patch until we get a real fix but I'm not sure what's the best way to fix this.
Implementing that the ClassTemplateSpecializationDecl actually understands that the two std::pair's are the same
decl fixes the issue, but this doesn't fix the bug for all declarations. My preferred solution would be to
complete all declarations in E-AST before they get moved to P-AST (as we anyway have to do this from what I can
tell), but that might have unintended side-effects and not sure what's the best way to implement this.
Reviewers: friss, martong
Reviewed By: martong
Subscribers: aprantl, rnkovacs, christof, abidh, JDevlieghere, lldb-commits, shafik
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67803
llvm-svn: 372549
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Summary:
Currently our expression evaluators only prints very basic errors that are not very useful when writing complex expressions.
For example, in the expression below the user made a type error, but it's not clear from the diagnostic what went wrong:
```
(lldb) expr printf("Modulos are:", foobar%mo1, foobar%mo2, foobar%mo3)
error: invalid operands to binary expression ('int' and 'double')
```
This patch enables full Clang diagnostics in our expression evaluator. After this patch the diagnostics for the expression look like this:
```
(lldb) expr printf("Modulos are:", foobar%mo1, foobar%mo2, foobar%mo3)
error: <user expression 1>:1:54: invalid operands to binary expression ('int' and 'float')
printf("Modulos are:", foobar%mo1, foobar%mo2, foobar%mo3)
~~~~~~^~~~
```
To make this possible, we now emulate a user expression file within our diagnostics. This prevents that the user is exposed to
our internal wrapper code we inject.
Note that the diagnostics that refer to declarations from the debug information (e.g. 'note' diagnostics pointing to a called function)
will not be improved by this as they don't have any source locations associated with them, so caret or line printing isn't possible.
We instead just suppress these diagnostics as we already do with warnings as they would otherwise just be a context message
without any context (and the original diagnostic in the user expression should be enough to explain the issue).
Fixes rdar://24306342
Reviewers: JDevlieghere, aprantl, shafik, #lldb
Reviewed By: JDevlieghere, #lldb
Subscribers: usaxena95, davide, jingham, aprantl, arphaman, kadircet, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D65646
llvm-svn: 372203
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First version had a typo.
llvm-svn: 372077
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This reverts commit 21641a2f6dbac22653befd03496e0850537882ff.
It was causing the following test failures:
lldb-Suite.lang/objc/objc-class-method.TestObjCClassMethod.py
lldb-Suite.lang/objc/foundation.TestObjCMethodsString.py
lldb-Suite.lang/objc/foundation.TestConstStrings.py
lldb-Suite.lang/objc/radar-9691614.TestObjCMethodReturningBOOL.py
lldb-Suite.lang/objc/foundation.TestObjCMethodsNSArray.py
llvm-svn: 372057
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llvm-svn: 372017
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We never compare these directories (where ConstString would be good) and
essentially just convert this back to a normal string in the end. So we might
as well just use std::string. Also makes it easier to unittest this code
(which was the main motivation for this change).
llvm-svn: 371623
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LLVMUserExpression doesn't use these variables and they are all specific to Clang.
Also removes m_const_object as this was actually never used by anyone (and Clang
didn't report it as we assigned it in the constructor which seems to count as use).
llvm-svn: 370440
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Somehow this option was only documented in the swift branch.
llvm-svn: 370395
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ClangPersistentVariables"
This reverts commit r367842 since it wasn't quite as NFC as advertised
and broke Swift support. See https://reviews.llvm.org/D46083 for the
rationale behind the original functionality.
rdar://problem/54619322
llvm-svn: 370126
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Summary:
This removes DeclVendor's dependency on clang (and ClangASTContext).
DeclVendor has no need to know about specific TypeSystems.
Differential Revision: https://reviews.llvm.org/D66628
llvm-svn: 369735
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llvm-svn: 369522
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Summary:
This introduces a layer between DeclVendor and the currently implemented
DeclVendors (ClangModulesDeclVendor and AppleObjCDeclVendor). This
allows the removal of DeclVendor::GetImporterSource which is extremely
clang-specific, freeing up the interface to be more general.
A good follow up to this would be to remove the remaining instances of
clang in DeclVendor, either by moving things to ClangDeclVendor or by
using wrappers (e.g. CompilerDecl instead of clang::NamedDecl).
Differential Revision: https://reviews.llvm.org/D66451
llvm-svn: 369424
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llvm-svn: 369198
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Now that we've moved to C++14, we no longer need the llvm::make_unique
implementation from STLExtras.h. This patch is a mechanical replacement
of (hopefully) all the llvm::make_unique instances across the monorepo.
Differential revision: https://reviews.llvm.org/D66259
llvm-svn: 368933
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It seems this breaks the following tests:
lldb-Suite :: expression_command/call-function/TestCallUserDefinedFunction.py
lldb-Suite :: expression_command/rdar42038760/TestScalarURem.py
Let's revert this patch and wait until we find an actual issue that could be
fixed by also doing the guard variable check on Windows.
llvm-svn: 368920
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The isGuardVariableSymbol option for ignoring Microsoft's ABI
was originally added to get the bots green, but now that we found
the actual issue (that we checked for prefix instead of suffix
in the MS ABI check), we should be able to properly implement
the guard variable check without any strange Microsoft exceptions.
llvm-svn: 368802
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Summary:
Ideally CompilerType would have no knowledge of clang or any individual
TypeSystem. Decoupling clang is relatively straightforward.
Differential Revision: https://reviews.llvm.org/D66102
llvm-svn: 368741
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Apparently we need to check for a suffix, not a prefix. This broke
probably broke expression evaluation on Windows.
llvm-svn: 368695
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It seems the broken guard variable check for Windows was a feature(TM)
and not a bug, so let's keep add a flag to the guard check that keeps
the old behavior in the places where we ignored guard variables before.
llvm-svn: 368688
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