Commit Graph

3412 Commits

Author SHA1 Message Date
Richard Smith d4b230b378 [modules] Load .pcm files specified by -fmodule-file lazily.
llvm-svn: 220731
2014-10-27 23:01:16 +00:00
David Majnemer f0822fb00a Frontend: Don't include stdin in the dependency list for an object file
GCC doesn't do this and it semes weird to include a file that we can't
open.

This fixes PR21362.

llvm-svn: 220726
2014-10-27 22:31:50 +00:00
David Majnemer 8ef921a48b Frontend: Define __EXCEPTIONS if -fexceptions is passed
GCC defines __EXCEPTIONS, regardless of language mode, if -fexceptions
is passed.  We should do the same.

This fixes PR21358.

llvm-svn: 220714
2014-10-27 20:02:19 +00:00
Benjamin Kramer a885796d5f Make VFS and FileManager match the current MemoryBuffer API.
This eliminates converting back and forth between the 3 formats and
gives us a more homogeneous interface.

llvm-svn: 220657
2014-10-26 22:44:13 +00:00
Nick Lewycky f04f237e0c Add a new -fmerge-functions -cc1 flag that enables function merging.
llvm-svn: 220543
2014-10-24 00:49:29 +00:00
Justin Bogner 5a6a2fcdee Driver: Include driver diagnostics when we --serialize-diagnostics
Currently, when --serialize-diagnostics is passed this only includes
the diagnostics from clang -cc1, and driver diagnostics are
dropped. This causes issues for tools that use the serialized
diagnostics, since stderr is lost and these diagnostics aren't seen at
all.

We handle this by merging the diagnostics from the CC1 process and the
driver diagnostics into a single file when the driver invokes CC1.

Fixes rdar://problem/10585062

llvm-svn: 220525
2014-10-23 22:20:11 +00:00
Daniel Jasper 4475a249e7 Remove code duplication and cut dependency from clangRewrite on
clangAST.

llvm-svn: 220502
2014-10-23 19:47:36 +00:00
Diego Novillo 795f53ba64 Support using sample profiles with partial debug info (driver)
Summary:
When using a profile, we used to require the use -gmlt so that we could
get access to the line locations. This is used to match line numbers in
the input profile to the line numbers in the function's IR.

But this is actually not necessary. The driver can provide source
location tracking without the emission of debug information. In these
cases, the annotation 'llvm.dbg.cu' is missing from the IR, but the
actual line location annotations are still present.

This patch tells the driver to only emit source location tracking
when -fprofile-sample-use is present in the command line.

Reviewers: echristo, dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5888

llvm-svn: 220383
2014-10-22 13:00:05 +00:00
Richard Smith e842a47452 [modules] Initial support for explicitly loading .pcm files.
Implicit module builds are not well-suited to a lot of build systems. In
particular, they fare badly in distributed build systems, and they lead to
build artifacts that are not tracked as part of the usual dependency management
process. This change allows explicitly-built module files (which are already
supported through the -emit-module flag) to be explicitly loaded into a build,
allowing build systems to opt to manage module builds and dependencies
themselves.

This is only the first step in supporting such configurations, and it should
be considered experimental and subject to change or removal for now.

llvm-svn: 220359
2014-10-22 02:05:46 +00:00
Aaron Ballman 7a6f36440d Follow-up commit to r211657 which introduced these macros, but not for MSVC. This turns out to break our freestanding tests on Windows when compiling in MSVC-compatible mode. It was decided (http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20141020/116942.html is the start of the thread) to support this as part of Clang's interface on all platforms.
llvm-svn: 220312
2014-10-21 19:24:06 +00:00
Richard Smith ab506adf7d Switch C compilations to C11 by default.
This is long-since overdue, and matches GCC 5.0. This should also be
backwards-compatible, because we already supported all of C11 as an extension
in C99 mode.

llvm-svn: 220244
2014-10-20 23:26:58 +00:00
Richard Smith 25d50758f3 [modules] Add support for #include_next.
#include_next interacts poorly with modules: it depends on where in the list of
include paths the current file was found. Files covered by module maps are not
found in include search paths when building the module (and are not found in
include search paths when @importing the module either), so this isn't really
meaningful. Instead, we fake up the result that #include_next *should* have
given: find the first path that would have resulted in the given file being
picked, and search from there onwards.

llvm-svn: 220177
2014-10-20 00:15:49 +00:00
Justin Bogner ba7add3a80 Frontend: Fix some underscore-then-capital UB
llvm-svn: 219903
2014-10-16 06:00:55 +00:00
Alexey Samsonov ae5804f3d7 Move -fsanitize-blacklist to LangOpts from CodeGenOpts. NFC.
After http://reviews.llvm.org/D5687 is submitted, we will need
SanitizerBlacklist before the CodeGen phase, so make it a LangOpt
(as it will actually affect ABI / class layout).

llvm-svn: 219842
2014-10-15 20:22:54 +00:00
Justin Bogner d512c1edf0 Frontend: Don't accept null DiagnosticsEngines when building ASTUnits
The various ways to create an ASTUnit all take a refcounted pointer to
a diagnostics engine as an argument, and if it isn't pointing at
anything they initialize it. This is a pretty confusing API, and it
really makes more sense for the caller to initialize the thing since
they control the lifetime anyway.

This fixes the one caller that didn't bother initializing the pointer
and asserts that the argument is initialized.

llvm-svn: 219752
2014-10-15 00:33:06 +00:00
Justin Bogner dbbcb11f0e Frontend: Remove some unused arguments in ASTUnit (NFC)
llvm-svn: 219747
2014-10-14 23:36:06 +00:00
Justin Bogner f884723799 Re-apply "Frontend: Extract SerializedDiagnosticReader out of CXLoadedDiagnostic (NFC)"
I'd mispelled "Bitcode/BitCodes.h" before, and tested on a case
insensitive filesystem.

This reverts commit r219649, effectively re-applying r219647 and
r219648.

llvm-svn: 219664
2014-10-14 06:30:31 +00:00
Richard Smith 99891da71a Extend -Rmodule-build to also remark when module building finishes.
In cases of nested module builds, or when you care how long module builds take,
this information was not previously easily available / obvious.

llvm-svn: 219658
2014-10-14 02:08:30 +00:00
Justin Bogner d776d67268 Revert "Frontend: Extract SerializedDiagnosticReader out of CXLoadedDiagnostic (NFC)"
The bots can't seem to find an include file. Reverting for now and
I'll look into it in a bit.

This reverts commits r219647 and r219648.

llvm-svn: 219649
2014-10-14 00:57:34 +00:00
Justin Bogner 0b4ab665f9 Frontend: Try to fix cmake builders after r219647
Looks like I missed a dependency here.

llvm-svn: 219648
2014-10-14 00:51:18 +00:00
Justin Bogner e40845b0dd Frontend: Extract SerializedDiagnosticReader out of CXLoadedDiagnostic (NFC)
We currently read serialized diagnostics directly in the C API, which
makes it difficult to reuse this logic elsewhere. This extracts the
core of the serialized diagnostic parsing logic into a base class that
can be subclassed using a visitor pattern.

llvm-svn: 219647
2014-10-14 00:40:55 +00:00
Benjamin Kramer ad8e079c61 Reduce double set lookups. NFC.
llvm-svn: 219504
2014-10-10 15:32:48 +00:00
Kostya Serebryany aed71a89bc Add experimental clang/driver flag -fsanitize-address-field-padding=N
Summary:
This change adds an experimental flag -fsanitize-address-field-padding=N (0, 1, 2)
to clang and driver. With this flag ASAN will be able to detect some cases of
intra-object-overflow bugs,
see https://code.google.com/p/address-sanitizer/wiki/IntraObjectOverflow

There is no actual functionality here yet, just the flag parsing.
The functionality is being reviewed at http://reviews.llvm.org/D5687

Test Plan: Build and run SPEC, LLVM Bootstrap, Chrome with this flag.

Reviewers: samsonov

Reviewed By: samsonov

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D5676

llvm-svn: 219417
2014-10-09 17:53:04 +00:00
Jonathan Roelofs b140a100a0 CFE Knob for: Add a thread-model knob for lowering atomics on baremetal & single threaded systems
http://reviews.llvm.org/D4985

llvm-svn: 219027
2014-10-03 21:57:44 +00:00
Benjamin Kramer 1a6e0a9b40 ASTUnit: Replace out parameter with return value, we have NRVO for this.
And elide the copy when pushing the return value into a vector. NFC.

llvm-svn: 219001
2014-10-03 18:52:54 +00:00
Justin Bogner aab9792b6c Driver: Use pointee_iterator rather than iterating over unique_ptrs
There's probably never a good reason to iterate over unique_ptrs. This
lets us use range-for and say Job.foo instead of (*it)->foo in a few
places.

llvm-svn: 218938
2014-10-03 01:04:53 +00:00
Ben Langmuir d213aab71d Ensure that all module build failures get diagnosed
Otherwise we can end up silently skipping an import.  If we happen to be
building another module at the time, we may build a mysteriously broken
module and not know why it seems to be missing symbols.

llvm-svn: 218552
2014-09-26 22:42:23 +00:00
David Blaikie 7ee25502f6 unique_ptrify ChainedDiagnosticConsumer's ctor parameters
llvm-svn: 217793
2014-09-15 17:50:10 +00:00
David Blaikie 11f8a943bf Fix memory leak of raw_ostreams in LogDiagnosticPrinter handling.
This is another case of conditional ownership (in this case a raw
reference, plus a boolean to indicate whether the referenced object
should be deleted). While it's not ideal, I prefer to make the ownership
explicit with a unique_ptr than using a boolean flag (though it does
make the reference and the unique_ptr redundant in the sense that they
both refer to the same memory). At some point we might write a reusable
conditional ownership pointer (a stateful custom deleter for a unique_ptr
may be appropriate).

Based on a patch from a patch by Anton Yartsev.

llvm-svn: 217791
2014-09-15 17:30:56 +00:00
Reid Kleckner 8f45c9cc62 Add -fseh-exceptions for MinGW-w64
This adds a flag called -fseh-exceptions that uses the native Windows
.pdata and .xdata unwind mechanism to throw exceptions. The other EH
possibilities are DWARF and SJLJ exceptions.

Patch by Martell Malone!

Reviewed By: asl, rnk

Differential Revision: http://reviews.llvm.org/D3419

llvm-svn: 217790
2014-09-15 17:19:16 +00:00
Ben Langmuir 5418f40127 Avoid a couple of assertions when preprocessing with modules
1. We were hitting the NextIsPrevious assertion because we were trying
to merge decl chains that were independent of each other because we had
no Sema object to allow them to find existing decls. This is fixed by
delaying loading the "preloaded" decls until Sema is available.

2. We were trying to get identifier info from an annotation token, which
asserts.  The fix is to special-case the module annotations in the
preprocessed output printer.

Fixed in a single commit because when you hit 1 you almost invariably
hit 2 as well.

llvm-svn: 217550
2014-09-10 21:29:41 +00:00
Craig Topper b8a7053055 Unique_ptrify PPCallbacks ownership.
Unique_ptr creation stil needs to be moved earlier at some of the call sites.

llvm-svn: 217474
2014-09-10 04:53:53 +00:00
Reid Kleckner e2793c009e -frewrite-includes: Normalize line endings to match the main source file
It is very common to include headers with DOS-style line endings, such
as windows.h, from source files with Unix-style line endings.
Previously, we would end up with mixed line endings and #endifs that
appeared to be on the same line:

  #if 0 /* expanded by -frewrite-includes */
  #include <windows.h>^M#endif /* expanded by -frewrite-includes */

Clang treats either of \r or \n as a line ending character, so this is
purely a cosmetic issue.

This has no automated test because most Unix tools on Windows will
implictly convert CRLF to LF when reading files, making it very hard to
detect line ending mismatches. FileCheck doesn't understand {{\r}}
either.

Fixes PR20552.

llvm-svn: 217259
2014-09-05 16:49:50 +00:00
David Blaikie c11bf80265 unique_ptrify JobList::Jobs
llvm-svn: 217168
2014-09-04 16:04:28 +00:00
David Majnemer 9676a2bc47 Frontend: Reindent Opts.CoverageFile
No functional change intended.

llvm-svn: 216888
2014-09-01 18:50:05 +00:00
David Blaikie eb62b822e3 unique_ptrify the raw_ostream argument to clang::serialized_diags::create
llvm-svn: 216767
2014-08-29 20:17:13 +00:00
Anna Zaks d5478fdd8f Add an option to silence all analyzer warnings.
People have been incorrectly using "-analyzer-disable-checker" to
silence analyzer warnings on a file, when analyzing a project. Add
the "-analyzer-disable-all-checks" option, which would allow the
suppression and suggest it as part of the error message for
"-analyzer-disable-checker". The idea here is to compose this with
"--analyze" so that users can selectively opt out specific files from
static analysis.

llvm-svn: 216763
2014-08-29 20:01:38 +00:00
David Blaikie a97eaa1bc0 Provide a BuryPointer for unique_ptrs.
In theory, it'd be nice if we could move to a case where all buried
pointers were buried via unique_ptr to demonstrate that the program had
finished with the value (that we could really have cleanly deallocated
it) but instead chose to bury it.

I think the main reason that's not possible right now is the various
IntrusiveRefCntPtrs in the Frontend, sharing ownership for a variety of
compiler bits (see the various similar
"CompilerInstance::releaseAndLeak*" functions). I have yet to figure out
their correct ownership semantics - but perhaps, even if the
intrusiveness can be removed, the shared ownership may yet remain and
that would lead to a non-unique burying as is there today. (though we
could model that a little better - by passing in a shared_ptr, etc -
rather than needing the two step that's currently used in those other
releaseAndLeak* functions)

This might be a bit more robust if BuryPointer took the boolean:

BuryPointer(bool, unique_ptr<T>)

and the choice to bury was made internally - that way, even when
DisableFree was not set, the unique_ptr would still be null in the
caller and there'd be no chance of accidentally having a different
codepath where the value is used after burial in !DisableFree, but it
becomes null only in DisableFree, etc...

llvm-svn: 216742
2014-08-29 16:53:14 +00:00
David Blaikie 93106514a9 unique_ptrify Directives in VerifyDiagnosticConsumer
llvm-svn: 216740
2014-08-29 16:30:23 +00:00
David Blaikie 50a5f97e82 unique_ptrify SourceManager::createFileID
llvm-svn: 216715
2014-08-29 07:59:55 +00:00
David Blaikie d6902a1403 Improve unique_ptr-y ownership in ASTUnit::ComputePreamble
Rather than having a pair of pairs and a reference out parameter, build
a structure with everything together and named. A raw pointer and a
unique_ptr, rather than a raw pointer and a boolean, are used to
communicate ownership transfer.

It's possible one day we'll end up with a conditional pointer (probably
represented by a raw pointer and a boolean) abstraction to use in places
like this. Conditional ownership seems to be coming up more often than
I'd hoped...

llvm-svn: 216712
2014-08-29 06:34:53 +00:00
Alexey Samsonov b4f99dd077 Don't create a null reference in ASTUnit::LoadFromCommandLine.
This change is the last in the pack of five commits
(also see r216691, r216694, r216695, and r216696) that reduces the number
of test failures in "check-clang" invocation in UBSan bootstrap
from 2443 down to 5.

llvm-svn: 216697
2014-08-28 23:51:01 +00:00
David Blaikie 49cc3181a2 Overload SourceManager::overrideFileContents so that unconditionally passing ownership is explicitly done using unique_ptr.
Only those callers who are dynamically passing ownership should need the
3 argument form. Those accepting the default ("do pass ownership")
should do so explicitly with a unique_ptr now.

llvm-svn: 216614
2014-08-27 20:54:45 +00:00
Rafael Espindola d87f8d76e0 Update for LLVM api change.
llvm-svn: 216585
2014-08-27 20:03:29 +00:00
Oliver Stannard ed8ecc8429 Allow __fp16 as a function arg or return type for AArch64
ACLE 2.0 allows __fp16 to be used as a function argument or return
type. This enables this for AArch64.

This also fixes an existing bug that causes clang to not allow
homogeneous floating-point aggregates with a base type of __fp16. This
is valid for AAPCS64, but not for AAPCS-VFP.

llvm-svn: 216558
2014-08-27 16:31:57 +00:00
Ted Kremenek eeccb30b94 Add support for the static analyzer to synthesize function implementations from external model files.
Currently the analyzer lazily models some functions using 'BodyFarm',
which constructs a fake function implementation that the analyzer
can simulate that approximates the semantics of the function when
it is called.  BodyFarm does this by constructing the AST for
such definitions on-the-fly.  One strength of BodyFarm
is that all symbols and types referenced by synthesized function
bodies are contextual adapted to the containing translation unit.
The downside is that these ASTs are hardcoded in Clang's own
source code.

A more scalable model is to allow these models to be defined as source
code in separate "model" files and have the analyzer use those
definitions lazily when a function body is needed.  Among other things,
it will allow more customization of the analyzer for specific APIs
and platforms.

This patch provides the initial infrastructure for this feature.
It extends BodyFarm to use an abstract API 'CodeInjector' that can be
used to synthesize function bodies.  That 'CodeInjector' is
implemented using a new 'ModelInjector' in libFrontend, which lazily
parses a model file and injects the ASTs into the current translation
unit.  

Models are currently found by specifying a 'model-path' as an
analyzer option; if no path is specified the CodeInjector is not
used, thus defaulting to the current behavior in the analyzer.

Models currently contain a single function definition, and can
be found by finding the file <function name>.model.  This is an
initial starting point for something more rich, but it bootstraps
this feature for future evolution.

This patch was contributed by Gábor Horváth as part of his
Google Summer of Code project.

Some notes:

- This introduces the notion of a "model file" into
  FrontendAction and the Preprocessor.  This nomenclature
  is specific to the static analyzer, but possibly could be
  generalized.  Essentially these are sources pulled in
  exogenously from the principal translation.

  Preprocessor gets a 'InitializeForModelFile' and
  'FinalizeForModelFile' which could possibly be hoisted out
  of Preprocessor if Preprocessor exposed a new API to
  change the PragmaHandlers and some other internal pieces.  This
  can be revisited.

  FrontendAction gets a 'isModelParsingAction()' predicate function
  used to allow a new FrontendAction to recycle the Preprocessor
  and ASTContext.  This name could probably be made something
  more general (i.e., not tied to 'model files') at the expense
  of losing the intent of why it exists.  This can be revisited.

- This is a moderate sized patch; it has gone through some amount of
  offline code review.  Most of the changes to the non-analyzer
  parts are fairly small, and would make little sense without
  the analyzer changes.

- Most of the analyzer changes are plumbing, with the interesting
  behavior being introduced by ModelInjector.cpp and
  ModelConsumer.cpp.

- The new functionality introduced by this change is off-by-default.
  It requires an analyzer config option to enable.

llvm-svn: 216550
2014-08-27 15:14:15 +00:00
Craig Topper 5fc8fc2d31 Simplify creation of a bunch of ArrayRefs by using None, makeArrayRef or just letting them be implicitly created.
llvm-svn: 216528
2014-08-27 06:28:36 +00:00
Rafael Espindola 16e1ba1e0b Return a std::unique_ptr from getBufferForFile. NFC.
llvm-svn: 216478
2014-08-26 20:17:44 +00:00
Rafael Espindola 6406f7b8e0 Return a std::unique_ptr from getBufferForFile. NFC.
llvm-svn: 216476
2014-08-26 19:54:40 +00:00
Joerg Sonnenberger a43604ad50 Convert MC command line flag for fatal assembler warnings into a proper
flag.

llvm-svn: 216472
2014-08-26 18:40:25 +00:00
Rafael Espindola dae941a6c8 Update for llvm api change.
llvm-svn: 216397
2014-08-25 18:17:04 +00:00
Craig Topper c6914d068f Use range based for loops to avoid needing to re-mention SmallPtrSet size.
llvm-svn: 216370
2014-08-25 04:15:02 +00:00
Dylan Noblesmith cdd3151987 Frontend: unique_ptr-ify
NFC.

llvm-svn: 216347
2014-08-24 18:59:52 +00:00
Aaron Ballman dd69ef38db C++1y is now C++14!
Changes diagnostic options, language standard options, diagnostic identifiers, diagnostic wording to use c++14 instead of c++1y. It also modifies related test cases to use the updated diagnostic wording.

llvm-svn: 215982
2014-08-19 15:55:55 +00:00
Rafael Espindola 5cd06f26ae Store std::unique_ptr in InMemoryBuffers. NFC.
llvm-svn: 215928
2014-08-18 19:16:31 +00:00
Rafael Espindola 2346a37599 return a std::unique_ptr from getMainBufferWithPrecompiledPreamble. NFC.
llvm-svn: 215927
2014-08-18 18:47:08 +00:00
Rafael Espindola 32482080fe Simplify ASTUnit::Parse a bit by passing a std::unique_ptr to it.
llvm-svn: 215900
2014-08-18 16:23:45 +00:00
Sylvestre Ledru 75c2914114 Add the break in the switch case (even if there is llvm_unreachable. It will silent coverity warning CID 1231654
llvm-svn: 215897
2014-08-18 15:13:44 +00:00
Craig Topper 4dd9b43c8d Repace SmallPtrSet with SmallPtrSetImpl in function arguments to avoid needing to mention the size.
llvm-svn: 215869
2014-08-17 23:49:53 +00:00
Rafael Espindola 04ab21d75d Convert a few ownership comments with std::unique_ptr.
llvm-svn: 215853
2014-08-17 22:12:58 +00:00
Rafael Espindola 764837431a Delete support for AuroraUX.
auroraux.org is not resolving.

llvm-svn: 215644
2014-08-14 15:14:51 +00:00
Rafael Espindola 4674a876cd Small cleanup: Don't duplicate default behavior.
std::unique_ptr is null initialized and reset default to null.

Thanks to David Blaikie for noticing.

llvm-svn: 215560
2014-08-13 17:08:22 +00:00
Rafael Espindola fa49c0bf10 Use std::unique_ptr to simplify memory management a bit.
llvm-svn: 215559
2014-08-13 16:47:00 +00:00
Rafael Espindola cd0b380a3c Use StringRef instead of MemoryBuffer&.
This code doesn't care where the data it is processing comes from, so a
StringRef is probably the most natural interface.

llvm-svn: 215448
2014-08-12 15:46:24 +00:00
Manuel Klimek 9af34aeac1 Correctly implement -include search logic.
According to the gcc docs, -include uses the current working directory
for the lookup instead of the main source file.

This patch gets rid of NormalizeIncludePath (which relied on an
implementation detail of FileManager / FileEntry for the include path
logic to work), and instead hands the correct lookup information down to
LookupFile.

This will allow us to change the FileEntry's behavior regarding its Name
caching.

llvm-svn: 215433
2014-08-12 08:25:57 +00:00
Richard Smith 35f986d3cd Modify behavior of -ast-dump-lookups: if -ast-dump is not also provided, dump
anyway. If -ast-dump *is* also provided, then dump the AST declarations as well
as the lookup results. This is invaluable for cross-correlating the lookup
information with the declarations actually found.

llvm-svn: 215393
2014-08-11 22:11:07 +00:00
David Blaikie 3d95d858f9 Change MemoryBuffer* to MemoryBuffer& parameter to Lexer::ComputePreamble
(dropping const from the reference as MemoryBuffer is immutable already,
so const is just redundant - and while I'd personally put const
everywhere, that's not the LLVM Way (see llvm::Type for another example
of an immutable type where "const" is omitted for brevity))

Changing the pointer argument to a reference parameter makes call sites
identical between callers with unique_ptrs or raw pointers, minimizing
the churn in a pending unique_ptr migrations.

llvm-svn: 215391
2014-08-11 22:08:06 +00:00
David Blaikie 23430ccb04 unique_ptr-ify FileSystemStatCache::setNextStatCache
And in the process, discover that FileManager::removeStatCache had a
double-delete when removing an element from the middle of the list (at
the beginning or the end of the list, there was no problem) and add a
unit test to exercise the code path (which successfully crashed when run
(with modifications to match the old API) without this patch applied)

llvm-svn: 215388
2014-08-11 21:29:24 +00:00
NAKAMURA Takumi 69f3528c6a Revert r215331, "unique_ptrify CompilerInstance::OutputFile(s) and remove a unique_ptr around a non-owning raw_ostream in CodeGenAction::CreateASTConsumer"
It cannot be compiled on Visual Studio 2012.

  clang\include\clang/Frontend/CompilerInstance.h(153):
error C2248: 'std::unique_ptr<_Ty>::unique_ptr' : cannot access private member declared in class 'std::unique_ptr<_Ty>'
            with
            [
                _Ty=llvm::raw_ostream
            ]
            D:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\memory(1447) : see declaration of 'std::unique_ptr<_Ty>::unique_ptr'
            with
            [
                _Ty=llvm::raw_ostream
            ]
            This diagnostic occurred in the compiler generated function 'clang::CompilerInstance::OutputFile::OutputFile(const clang::CompilerInstance::OutputFile &)'

llvm-svn: 215346
2014-08-11 06:53:11 +00:00
David Blaikie 3b0e32bf61 unique_ptrify CompilerInstance::OutputFile(s) and remove a unique_ptr around a non-owning raw_ostream in CodeGenAction::CreateASTConsumer
llvm-svn: 215331
2014-08-10 23:35:58 +00:00
David Blaikie 6153581a40 Out-of-line CompilerInstance::takeSema to avoid a header dependence from CompilerInstance.h on Sema.h
Hopefully this fixes the libstdc++ build on some of the buildbots after
r215321.

llvm-svn: 215325
2014-08-10 20:12:39 +00:00
David Blaikie 6beb6aa8f0 Recommit 213307: unique_ptr-ify ownership of ASTConsumers (reverted in r213325)
After post-commit review and community discussion, this seems like a
reasonable direction to continue, making ownership semantics explicit in
the source using the type system.

llvm-svn: 215323
2014-08-10 19:56:51 +00:00
David Blaikie ec99b5ee0d unique_ptr-ify CompilerInstance::takeSema
llvm-svn: 215321
2014-08-10 19:14:48 +00:00
David Blaikie 6f7382ddd1 std::unique_ptr-ify the result of ASTUnit::LoadFromASTFile
llvm-svn: 215320
2014-08-10 19:08:04 +00:00
David Blaikie f62d4e772d unique_ptr-ify FrontendAction::takeCurrentASTUnit
llvm-svn: 215319
2014-08-10 17:03:42 +00:00
David Blaikie 2721c32e47 unique_ptr-ify ASTReaderListener in the ASTReader
llvm-svn: 215317
2014-08-10 16:54:39 +00:00
Ben Langmuir 9d6448b137 Refactor the module map file used for uniquing a module name out of
class Module. It's almost always going to be the same as
getContainingModule() for top-level modules, so just add a map to cover
the remaining cases.  This lets us do less bookkeeping to keep the
ModuleMap fields up to date.

llvm-svn: 215268
2014-08-09 00:57:23 +00:00
Bob Wilson 7400e596a3 Predefine IB_DESIGNABLE and IBInspectable macros. <rdar://problem/17441860>
These macros are used as markers for Interface Builder and need to be defined
to empty strings since they have no impact on the code.

Patch by Ted Kremenek.

llvm-svn: 215259
2014-08-08 23:46:25 +00:00
Alex Lorenz f2cf38e020 Add a cc1 "dump-coverage-mapping" for testing coverage mapping.
Differential Revision: http://reviews.llvm.org/D4799

llvm-svn: 215258
2014-08-08 23:41:24 +00:00
Benjamin Kramer 88d99e4f42 Flip the order the preprocessor and frontendaction are informed of the end of a file.
This allows using EndOfMainFile from a PPCallback to access data from the
action. The pattern of PPCallback referencing an action is common in clang-tidy.

Differential Revision: http://reviews.llvm.org/D4773

llvm-svn: 215145
2014-08-07 20:51:16 +00:00
Richard Smith 3be1cb294f Use -Rblah, not -Wblah, to control remark diagnostics. This was always the
intent when we added remark support, but was never implemented in the general
case, because the first -R flags didn't need it. (-Rpass= had special handling
to accomodate its argument.)

-Rno-foo, -Reverything, and -Rno-everything can be used to turn off a remark,
or to turn on or off all remarks. Per discussion on cfe-commits, -Weverything
does not affect remarks, and -Reverything does not affect warnings or errors.

The only "real" -R flag we have right now is -Rmodule-build; that flag is
effectively renamed from -Wmodule-build to -Rmodule-build by this change.

-Wpass and -Wno-pass (and their friends) are also renamed to -Rpass and
-Rno-pass by this change; it's not completely clear whether we intended to have
a -Rpass (with no =pattern), but that is unchanged by this commit, other than
the flag name. The default pattern is effectively one which matches no passes.
In future, we may want to make the default pattern be .*, so that -Reverything
works for -Rpass properly.

llvm-svn: 215046
2014-08-07 00:24:21 +00:00
Fariborz Jahanian bcd82afad6 Introduce f[no-]max-unknown-pointer-align=[number] option
to instruct the code generator to not enforce a higher alignment 
than the given number (of bytes) when accessing memory via an opaque 
pointer or reference. Patch reviewed by John McCall (with post-commit
review pending). rdar://16254558

llvm-svn: 214911
2014-08-05 18:37:48 +00:00
Alex Lorenz ee02499a8f Add coverage mapping generation.
This patch adds the '-fcoverage-mapping' option which
allows clang to generate the coverage mapping information
that can be used to provide code coverage analysis using
the execution counts obtained from the instrumentation 
based profiling (-fprofile-instr-generate).

llvm-svn: 214752
2014-08-04 18:41:51 +00:00
Jordan Rose 6dcdaa6af3 Add a missing close quote in "while building module 'Foo:" diagnostic.
This isn't a real diagnostic kind, only a location note, and this form isn't even
used if the SourceManager can provide a valid presumed location. But still.

llvm-svn: 214002
2014-07-26 01:22:02 +00:00
Ben Langmuir b537a3a651 Add stopgap option -fmodule-implementation-of <name>
This flag specifies that we are building an implementation file of the
module <name>, preventing importing <name> as a module. This does not
consider this to be the 'current module' for the purposes of doing
modular checks like decluse or non-modular-include warnings, unlike
-fmodule-name.

This is needed as a stopgap until:
1) we can resolve relative includes to a VFS-mapped module (or can
   safely import a header textually and as part of a module)

and ideally
2) we can safely do incremental rebuilding when implementation files
   import submodules.

llvm-svn: 213767
2014-07-23 15:30:23 +00:00
Tim Northover 40956e64f2 AArch64: update Clang for merged arm64/aarch64 triples.
The main subtlety here is that the Darwin tools still need to be given "-arch
arm64" rather than "-arch aarch64". Fortunately this already goes via a custom
function to handle weird edge-cases in other architectures, and it tested.

I removed a few arm64_be tests because that really isn't an interesting thing
to worry about. No-one using big-endian is also referring to the target as
arm64 (at least as far as toolchains go). Mostly they date from when arm64 was
a separate target and we *did* need a parallel name simply to test it at all.
Now aarch64_be is sufficient.

llvm-svn: 213744
2014-07-23 12:32:58 +00:00
Ben Langmuir b797d59f03 If a module build reports errors, don't try to load it
... just to find out that it didn't build.

llvm-svn: 213454
2014-07-19 16:29:28 +00:00
David Blaikie 3875a82d42 Remove uses of the redundant ".reset(nullptr)" of unique_ptr, in favor of ".reset()"
It's also possible to just write "= nullptr", but there's some question
of whether that's as readable, so I leave it up to authors to pick which
they prefer for now. If we want to discuss standardizing on one or the
other, we can do that at some point in the future.

llvm-svn: 213439
2014-07-19 01:06:45 +00:00
David Blaikie 62a56f39b7 Revert "unique_ptr-ify ownership of ASTConsumers"
This reverts commit r213307.

Reverting to have some on-list discussion/confirmation about the ongoing
direction of smart pointer usage in the LLVM project.

llvm-svn: 213325
2014-07-17 22:34:12 +00:00
David Blaikie a51666a4d6 unique_ptr-ify ownership of ASTConsumers
(after fixing a bug in MultiplexConsumer I noticed the ownership of the
nested consumers was implemented with raw pointers - so this fixes
that... and follows the source back to its origin pushing unique_ptr
ownership up through there too)

llvm-svn: 213307
2014-07-17 20:40:36 +00:00
Joerg Sonnenberger 587deea875 If char/short are shorter than int, do not use U as suffix for
constants. Comparing int against a constant of the given type like
UINT8_MAX will otherwise force a promotion to unsigned int, which is
typically not expected.

llvm-svn: 213301
2014-07-17 20:12:32 +00:00
Joerg Sonnenberger 3042f7e7a1 Always set the C suffix macro, even if it is empty.
llvm-svn: 213299
2014-07-17 19:47:34 +00:00
Ehsan Akhgari bd927b6457 clang-cl: Flush stdout after writing the /showIncludes output
Summary:
Before this patch, you could get lines in the output such as:
Note: including file:   ../../dist/include/js/Tc:/path/to/foo.cpp(1,1) :  error(clang): static_assert failed...

This patch ensures that the stdout output from showIncludes won't be garbled
in the terminal like this, and it also helps applications that use the output
to generate dependency information if they happen to capture both stdout and
stderr.

Test Plan:
Tested locally, it's hard to write an automated test for this as
the behavior depends on the buffering of the ostreams.

Reviewers: nico

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4559

llvm-svn: 213297
2014-07-17 19:08:19 +00:00
Joerg Sonnenberger b3a4969b70 Provide __SIG_ATOMIC_MAX__ next to __SIG_ATOMIC_WIDTH__.
llvm-svn: 213289
2014-07-17 18:31:20 +00:00
David Blaikie 1326975496 DebugInfo: Forward HandleTagDeclRequiredDefinition through MultiplexConsumer to fix debug info emission in the presence of plugins.
When plugins are used the Multiplex(AST)Consumer is employed to dispatch
to both the plugin ASTConsumers and the IRGen ASTConsumer. It wasn't
dispatching a critical call for debug info, resulting in plugin users
having a negative debugging experience.

While I'm here, forward a bunch of other missing calls through the
consumer that seem like they should be there.

To test this, use the example plugin (requires plugins and examples) and
split the test case up so that the plugin testing can be done under that
requirement while the non-plugin testing will execute even in builds
that don't include plugin support or examples.

llvm-svn: 213213
2014-07-16 23:52:46 +00:00
Alp Toker 0621cb2e7d Make clang's rewrite engine a core feature
The rewrite facility's footprint is small so it's not worth going to these
lengths to support disabling at configure time, particularly since key compiler
features now depend on it.

Meanwhile the Objective-C rewriters have been moved under the
ENABLE_CLANG_ARCMT umbrella for now as they're comparatively heavy and still
potentially worth excluding from lightweight builds.

Tests are now passing with any combination of feature flags. The flags
historically haven't been tested by LLVM's build servers so caveat emptor.

llvm-svn: 213171
2014-07-16 16:48:33 +00:00
Saleem Abdulrasool c68237bc2c Driver: bifurcate extended and basic MSC versioning
This restores the original behaviour of -fmsc-version. The older option
remains as a mechanism for specifying the basic version information. A
secondary option, -fms-compatibility-version permits the user to specify an
extended version to the driver.

The new version takes the value as a dot-separated value rather than the
major * 100 + minor format that -fmsc-version format. This makes it easier to
specify the value as well as a more flexible manner for specifying the value.

Specifying both values is considered an error.

The older parameter is left solely as a driver option, which is normalised into
the newer parameter. This allows us to retain a single code path in the
compiler itself whilst preserving the semantics of the old parameter as well as
avoid having to determine which of two formats are being used by the invocation.

The test changes are due to the fact that the compiler no longer supports the
old option, and is a direct conversion to the new option.

llvm-svn: 213119
2014-07-16 03:13:50 +00:00
Joerg Sonnenberger f6432d83c3 Add __INTMAX_C_SUFFIX__ and __UINTMAX_C_SUFFIX__.
llvm-svn: 213097
2014-07-15 21:58:11 +00:00
Joerg Sonnenberger cc43c85855 Don't create non-temporary twines.
llvm-svn: 213066
2014-07-15 12:18:40 +00:00
Joerg Sonnenberger 62277b37db Make sure int64_t and uint64_t are consistent.
llvm-svn: 213065
2014-07-15 11:51:38 +00:00
Joerg Sonnenberger be324f9832 Provide builtin macros as template for PRIab and SCNab, matching the
underlaying types.

llvm-svn: 213063
2014-07-15 11:30:00 +00:00
Pavel Chupin 3362c5fb0f [x32] Add __ILP32__ macro for ILP32 platforms
Summary:
Add __ILP32__ and _ILP32 macro for corresponding platforms.
Cover x86_64-*-*-gnux32 with test.

Test Plan: test added

Reviewers: chandlerc, atanasyan

Subscribers: cfe-commits, dschuff, zinovy.nis

Differential Revision: http://reviews.llvm.org/D4473

llvm-svn: 212931
2014-07-14 09:58:10 +00:00
NAKAMURA Takumi ad4c06c656 Instantiate llvm::Registry<clang::PluginASTAction> in FrontendAction.cpp.
- Plugins don't need to export _ZN4llvm8Registry*.
  - Win32.DLL cannot merge common symbols among DLLs. Static members in llvm::Registry should be instantiated in a parent.

llvm-svn: 212821
2014-07-11 15:06:24 +00:00
Ehsan Akhgari f3a896bd22 Avoid definining more GCC specific predefined macros in clang-cl
Reviewers: hansw, rnk

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4419

llvm-svn: 212753
2014-07-10 18:44:24 +00:00
Andy Gibbs c1f152ee6c Provide -verify support to match "any" line for diagnostics in included files.
Allow diagnostic checks that originate in included files to be matched without necessarily determining the line number that the diagnostic occurs on.  The new syntax replaces the line number with '*'.  This extension is limited to diagnostics in included files and may be used where the include file is not part of the test-suite itself.

Expected uses are for diagnostics originating in system headers, or for users who use -verify in testing 3rd-party library code where the location of diagnostics in header files may change from revision to revision and their precise location is not important to the success of the test-case.

llvm-svn: 212735
2014-07-10 16:43:29 +00:00
Alp Toker 4ea0d2389b Simplify warning flag value handling from r206826
Also give the field it a more appropriate name and improve the docs.

llvm-svn: 212584
2014-07-09 01:37:24 +00:00
Benjamin Kramer ce416398ef Turn some Twine locals into const char * variables.
No functionality change, just stylistic cleanup. Change made by clang-tidy
and clang-format.

llvm-svn: 212544
2014-07-08 16:07:36 +00:00
David Blaikie 326ffb3683 Improve memory ownership of vfs::Files in the FileSystemStatCache by using std::unique_ptr
Spotted after a memory leak (due to the complexities of manual memory
management) was fixed in 212466.

llvm-svn: 212541
2014-07-08 15:46:02 +00:00
Alp Toker 9e0523d749 Move ChainedIncludesSource into the implementation
This doesn't need to be in the headers.

llvm-svn: 212451
2014-07-07 11:07:10 +00:00
Alp Toker 7eb95e21d7 ChainedIncludesSource: avoid copying n*(n+1)/2 file contents into memory
Just reference the data instead with shallow MemoryBuffer instances.

llvm-svn: 212450
2014-07-07 11:06:51 +00:00
Alp Toker 221285bde7 Remove unused sys/stat.h includes
The facility was abstracted to LLVM in r187364.

llvm-svn: 212441
2014-07-07 08:37:15 +00:00
Alp Toker 1b070d25ca Peel away old-style file remapping typedefs and cruft
llvm-svn: 212438
2014-07-07 07:47:20 +00:00
Alp Toker c358000ed3 Fix layering of file remapping and header search initialization
These two functions initialize the source manager and header search objects and
shouldn't be in InitPreprocessor which is concerned with priming the
preprocessor itself and predefining macros.

llvm-svn: 212434
2014-07-07 06:05:00 +00:00
Rafael Espindola 2d2b420ab9 Update for llvm api change.
llvm-svn: 212408
2014-07-06 17:43:24 +00:00
Alp Toker 80758084f7 Use non-intrusive refcounting for TargetOptions
llvm-svn: 212388
2014-07-06 05:26:44 +00:00
Alp Toker 269d840e40 Use non-intrusive refcounting for LangOptions
This type is only refcounted in a couple of places so making ownership explicit
improves clarity.

llvm-svn: 212387
2014-07-06 05:26:07 +00:00
Alp Toker 74437975c4 Constify a read-only parameter and give function a better name
This makes it clear that TargetInfo doesn't capture the LangOptions object,
rather uses it to apply adjustments.

llvm-svn: 212386
2014-07-06 05:14:24 +00:00
Alp Toker 525fdfc11e Use PlistSupport in a few more places
Switch over LogDiagnosticPrinter and introduce an integer helper.

llvm-svn: 212384
2014-07-06 04:26:52 +00:00
Nico Weber 2582895832 clang-cl: /showIncludes output should go to stdout, not stderr. Fixes PR20217.
llvm-svn: 212383
2014-07-06 03:04:24 +00:00
Alp Toker f994cef836 Track IntrusiveRefCntPtr::get() changes from LLVM r212366
llvm-svn: 212369
2014-07-05 03:08:06 +00:00
David Majnemer f607234fde Driver: Handle /GR- in a compatible way with MSVC
There are slight differences between /GR- and -fno-rtti which made
mapping one to the other inappropriate.

-fno-rtti disables dynamic_cast, typeid, and does not emit RTTI related
information for the v-table.

/GR- does not generate complete object locators and thus will not
reference them in vftables.  However, constructs like dynamic_cast and
typeid are permitted.

This should bring our implementation of RTTI up to semantic parity with
MSVC modulo bugs.

llvm-svn: 212138
2014-07-01 22:24:56 +00:00
Ehsan Akhgari 9be07e1acd Do not define __STRICT_ANSI__ in clang-cl
llvm-svn: 212066
2014-06-30 20:36:33 +00:00
Ben Langmuir 33c8090a2f Consider module depedencies when checking a preamble in libclang
Add module dependencies (header files, module map files) to the list of
files to check when deciding whether to rebuild a preamble. That fixes
using preambles with module imports so long as they are in
non-overridden files.

My intent is to use to unify the existing dependency collectors to the
new “DependencyCollectory” interface from this commit, starting with the
DependencyFileGenerator.

llvm-svn: 212060
2014-06-30 20:04:14 +00:00
David Blaikie 66cc07b4f7 Remove 'const' from MemoryBuffers used through the SourceManager
This removes a const_cast added in r211884 that occurred due to an
inconsistency in how MemoryBuffers are handled between some parts of
clang and LLVM.

MemoryBuffers are immutable and the general convention in the LLVM
project is to omit const from immutable types as it's simply
redundant/verbose (see llvm::Type, for example). While this change
doesn't remove "const" from /every/ MemoryBuffer, it at least makes this
chain of ownership/usage consistent.

llvm-svn: 211915
2014-06-27 17:40:03 +00:00
JF Bastien ab8d0a0dd5 Implement predefined stdint macros
Add predefined stdint macros that match the given patterns:

U?INT{_,_FAST,_LEAST}{8,16,32,64}_{MAX,TYPE}
U?INT{PTR,MAX}_{MAX,TYPE}

http://reviews.llvm.org/D4141

Author: binji
llvm-svn: 211657
2014-06-25 01:31:33 +00:00
Diego Novillo 913690c7bc Add new debug kind LocTrackingOnly.
Summary:
This new debug emission kind supports emitting line location
information in all instructions, but stops code generation
from emitting debug info to the final output.

This mode is useful when the backend wants to track source
locations during code generation, but it does not want to
produce debug info. This is currently used by optimization
remarks (-Rpass, -Rpass-missed and -Rpass-analysis).

When one of the -Rpass flags is used, the front end will enable
location tracking, only if no other debug option is enabled.

To prevent debug information from being generated, a new debug
info kind LocTrackingOnly causes DIBuilder::createCompileUnit() to
not emit the llvm.dbg.cu annotation. This blocks final code generation
from generating debug info in the back end.

Depends on D4234.

Reviewers: echristo, dblaikie

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4235

llvm-svn: 211610
2014-06-24 17:02:17 +00:00
Saleem Abdulrasool f7062b2313 Driver: correct behaviour of -fmsc-version=MAJOR
Ensure that we properly handle the case where just the major version component
is provided by the user.

Thanks to Alp Toker for pointing out that this was not handled correctly!

llvm-svn: 211506
2014-06-23 17:36:36 +00:00
Ben Langmuir 2cc485b6a9 Stop sharing the FileManager in ASTUnit::Parse
We were using old stat values for any files that had previously been
looked up, leading to badness. There might be a more elegant solution in
invalidating the cache for those file (since we already know which ones
they are), but it seems too likely there are existing references to
them hiding somewhere.

llvm-svn: 211504
2014-06-23 16:36:40 +00:00
Alp Toker 2724ec37f3 TextDiagnosticPrinter: use the mapped level for remark flag computation
Custom diagnostics don't have a builtin class so this wouldn't have worked.
Reduces surface area of remark-related changes.

No test coverage.

llvm-svn: 211462
2014-06-22 10:08:06 +00:00
Alp Toker 4db87abf0f DiagnosticRenderer: emit basic notes as real diagnostics
Fixes terminal column wrapping and vestigial 'note:' prefixes that would appear
when using emitBasicNote().

llvm-svn: 211448
2014-06-21 23:31:59 +00:00
Alp Toker a68ad10a90 TextDiagnostic: print remark level diagnostics in bold too
The purpose of bolding these is to make them visually distinct from
continuations (supplemental note diagnostics). Therefore, the bolding applies
to all severities _including_ remarks -- it's not in any way an indicator of
priority. Also simplify and comment.

No tests.

llvm-svn: 211447
2014-06-21 23:31:52 +00:00
Saleem Abdulrasool 9d45e77dca Driver: enhance MSC version compatibility
The version information for Visual Studio is spread over multiple variables.
The newer Windows SDK has started making use of some of the extended versioning
variables that were previously undefined.  Enhance our compatibility definitions
for these cases.

_MSC_VER is defined to be the Major * 100 + Minor.  _MSC_FULL_VER is defined to
be Major * 10000000 + Minor * 100000 + Build.  And _MSC_BUILD is the build
revision of the compiler.

Extend the -fmsc-version option in a compatible manner.  If the value is the
previous form of MMmm, then we assume that the build number is 0.  Otherwise, a
specific build number may be passed by using the form MMmmbbbbb.  Due to
bitwidth limitations of the option, it is currently not possible to define a
revision value.

The version information can be passed as either the decimal encoded value
(_MSC_FULL_VER or _MSC_VER) or as a dot-delimited value.

The change to the TextDiagnostic is to deal with the updated encoding of the
version information.

llvm-svn: 211420
2014-06-20 22:58:35 +00:00
Richard Smith 4676203011 [C++1z] Implement N3981: Disable trigraphs by default in C++1z mode.
llvm-svn: 211392
2014-06-20 19:23:57 +00:00
Justin Bogner e1552f6648 Frontend: Disentangle removePathTraversal from concatenating paths
This reimplements part of r211303 in a bit of a cleaner way. Doing so
allows us to use a proper absolute path when calling addFileMapping
rather than relying on a substring being one, which should fix the
tests on Windows.

llvm-svn: 211338
2014-06-20 03:28:46 +00:00
Justin Bogner cbda32fbe8 Frontend: Fix a typo
llvm-svn: 211306
2014-06-19 19:49:28 +00:00
Justin Bogner 86d1259ca7 Frontend: Add a CC1 flag to dump module dependencies to a directory
This adds the -module-dependency-dir to clang -cc1, which specifies a
directory to copy all of a module's dependencies into in a form
suitable to be used as a VFS using -ivfsoverlay with the generated
vfs.yaml.

This is useful for crashdumps that involve modules, so that the module
dependencies will be intact when a crash report script is used to
reproduce a problem on another machine.

We currently encode the absolute path to the dump directory, due to
limitations in the VFS system. Until we can handle relative paths in
the VFS, users of the VFS map may need to run a simple search and
replace in the file.

llvm-svn: 211303
2014-06-19 19:36:03 +00:00
Ben Langmuir dbdc036858 Retry building modules that were compiled by other instances and are out-of-date
When another clang instance builds a module, it may still be considered
"out of date" for the current instance in a couple of cases*.  This
patch prevents us from giving spurious errors when compilers race to
build a module by allowing the module load to fail when the pcm was
built by a different compiler instance.

* Cases where a module can be out of date despite just having been
built:

1) There are different -I paths between invocations that result in
finding a different module map file for some dependent module. This is
not an error, and should never be diagnosed.

<rdar://problem/16843887>

2) There are file system races where the headers making up a module are
touched or moved. Although this can sometimes mean trouble, diagnosing
it only during a build-race is worse than useless and we cannot detect
this in general.  It is more robust to just rebuild.  This was causing
spurious issues in some setups where only the modtime of headers was
bumped during a build.

<rdar://problem/16157638>

llvm-svn: 211129
2014-06-17 22:35:27 +00:00
Diego Novillo 18362bfd27 Remove dead code.
The parsing for -Rpass= had been factored into the function
GenerateOptimizationRemarkRegex, but at the time I forgot to remove
the original code that just handled OPT_Rpass_EQ.

llvm-svn: 211122
2014-06-17 20:01:51 +00:00
Richard Smith dbd4d4c837 Add -std=c++1z flag for C++17 features.
llvm-svn: 211030
2014-06-16 15:16:56 +00:00
Rafael Espindola 71de0b61cb Update for llvm api change.
llvm-svn: 210921
2014-06-13 17:20:50 +00:00
Rafael Espindola 8e650d7bf0 Refer to error_code with the std prefix.
llvm-svn: 210817
2014-06-12 20:37:59 +00:00
Rafael Espindola 8a8e554adc Include system_error directly.
llvm-svn: 210802
2014-06-12 17:19:42 +00:00
Rafael Espindola c080917ec2 Replace llvm::error_code with std::error_code.
llvm-svn: 210780
2014-06-12 14:02:15 +00:00
Alp Toker 46df1c0db8 Complete the switch from mappings to declarative diagnostic severities
This begins to address cognitive dissonance caused by treating the Note
diagnostic level as a severity in the diagnostic engine.

No change in functionality.

llvm-svn: 210758
2014-06-12 10:15:20 +00:00
Rafael Espindola 96b033006d Use std::error_code instead of llvm::error_code.
This is an update for a llvm api change.

llvm-svn: 210688
2014-06-11 19:05:55 +00:00
Bob Wilson 07216a1161 Fix crash with x86_64-pc-win32-macho target. <rdar://problem/17235840>
The changes in r204978 broke win32-macho targets. There were checks added for
MSVC and Itanium environments as special cases, and win32-macho needs to be
treated the same way.

llvm-svn: 210584
2014-06-10 21:07:12 +00:00
Hans Wennborg 35bbf1cf8a Do not predefine __EXCEPTIONS in clang-cl (PR19977)
Patch by Ehsan Akhgari! (Test tweak by me.)

Differential Revision: http://reviews.llvm.org/D4065

llvm-svn: 210582
2014-06-10 20:46:38 +00:00
Alp Toker c726c367f4 Improve diagnostic mapping terminology
Diagnostic mappings are used to calculate the final severity of diagnostic
instances.

Detangle the implementation to reflect the terminology used in documentation
and bindings.

No change in functionality.

llvm-svn: 210518
2014-06-10 09:31:37 +00:00
Alp Toker f988d00682 Revert "Revert "Devise a package-private means to determine the LLVM version string""
We probably just need to touch LLVM's configure this time to work around the
totally inadequate Makefile build server integration.

This reverts commit r210314.

llvm-svn: 210320
2014-06-06 10:36:22 +00:00
Alp Toker 27f333d3ad Revert "Devise a package-private means to determine the LLVM version string"
This didn't work out on the build servers. Investigating

This reverts commit r210313.

llvm-svn: 210314
2014-06-06 07:26:57 +00:00
Alp Toker 420d7ccbac Devise a package-private means to determine the LLVM version string
This will unbreak clang vendor builds as a follow-up to r210238, now that we
can't poke into LLVM's private config.h (nor should the string be exposed by
llvm-config.h).

This hopefully removes for good the last include of LLVM's config.h.

llvm-svn: 210313
2014-06-06 06:58:25 +00:00
Alp Toker 1d257e1d0a Remove the last remaining llvm/Config/config.h includes
This corrects long-standing misuses of LLVM's internal config.h.

In most cases the public llvm-config.h header was intended and we can now
remove the old hacks thanks to LLVM r210144.

The config.h header is private, won't be installed and should no longer be
included by clang or other modules.

llvm-svn: 210145
2014-06-04 03:28:55 +00:00
Alp Toker ea04672c82 Fix leak from r210059
Also revert r210096 which temporarily disabled the test while this was being
investigated.

llvm-svn: 210115
2014-06-03 17:23:34 +00:00
Rafael Espindola 3ae0620a45 There is no std::errc:success, remove the llvm one.
llvm-svn: 209959
2014-05-31 03:20:52 +00:00
Rafael Espindola cb82dfb11c Use error_code() instead of error_code::succes()
There is no std::error_code::success, so this removes much of the noise
in transitioning to std::error_code.

llvm-svn: 209949
2014-05-31 01:26:30 +00:00
Diego Novillo d23ec94393 Add flags -Rpass-missed and -Rpass-analysis.
Summary:
These two flags are in the same family as -Rpass, but are used in
different situations.

-Rpass-missed is used by optimizers to inform the user when they tried
to apply an optimization but couldn't (or wouldn't).

-Rpass-analysis is used by optimizers to report analysis results back
to the user (e.g., why the transformation could not be applied).

Depends on D3682.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3683

llvm-svn: 209839
2014-05-29 19:55:06 +00:00
Aaron Ballman a670c20894 No longer allow the -std options to entirely override the -x language option. This allows -x cuda -std=c++11, for instance.
llvm-svn: 209824
2014-05-29 16:39:42 +00:00
Tim Northover 573cbee543 AArch64/ARM64: rename ARM64 components to AArch64
This keeps Clang consistent with backend naming conventions.

llvm-svn: 209579
2014-05-24 12:52:07 +00:00
Hans Wennborg a926d84c4b Emit used/dllexport inline method definitions in nested classes (PR19743, PR11170)
The previous code that was supposed to handle this didn't work
since parsing of inline method definitions is delayed to the end
of the outer class definition. Thus, when HandleTagDeclDefinition()
got called for the inner class, the inline functions in that class
had not been parsed yet.

Richard suggested that the way to do this is by handling inline
method definitions through a new ASTConsumer callback.

I really wanted to call ASTContext::DeclMustBeEmitted() instead of
checking for attributes, but doing that causes us to compute linkage,
and then we fail with "error: unsupported: typedef changes linkage
of anonymous type, but linkage was already computed" on tests like
this: (from SemaCXX/undefined-internal.cpp) :-/

  namespace test7 {
    typedef struct {
      void bar();
      void foo() { bar(); }
    } A;
  }

Differential Revision: http://reviews.llvm.org/D3809

llvm-svn: 209549
2014-05-23 20:37:38 +00:00
Alexander Kornienko d3b4e08960 Remove limits on the number of fix-it hints and ranges in the DiagnosticsEngine.
Summary:
The limits on the number of fix-it hints and ranges attached to a
diagnostic are arbitrary and don't apply universally to all users of the
DiagnosticsEngine. The way the limits are enforced may lead to diagnostics
generating invalid sets of fixes. I suggest removing the limits, which will also
simplify the implementation.

Reviewers: rsmith

Reviewed By: rsmith

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D3879

llvm-svn: 209468
2014-05-22 19:56:11 +00:00
Craig Topper 49a2790fb3 [C++11] Use 'nullptr'. Frontend edition.
llvm-svn: 209389
2014-05-22 04:46:25 +00:00
Alp Toker b671e34c36 SourceManager: Use setMainFileID() consistently
Eliminate createMainFileID() / createMainFileIDForMemBuffer() utility
functions. These didn't add much convenience and conflated two distinct
operations.

This change makes things easier to follow by providing a consistent interface
and getting rid of a bunch of cast-to-voids.

llvm-svn: 209266
2014-05-21 01:12:41 +00:00
Richard Smith 053f6c6c9e If a declaration is loaded, and then a module import adds a redeclaration, then
ensure that querying the first declaration for its most recent declaration
checks for redeclarations from the imported module.

This works as follows:
 * The 'most recent' pointer on a canonical declaration grows a pointer to the
   external AST source and a generation number (space- and time-optimized for
   the case where there is no external source).
 * Each time the 'most recent' pointer is queried, if it has an external source,
   we check whether it's up to date, and update it if not.
 * The ancillary data stored on the canonical declaration is allocated lazily
   to avoid filling it in for declarations that end up being non-canonical.
   We'll still perform a redundant (ASTContext) allocation if someone asks for
   the most recent declaration from a decl before setPreviousDecl is called,
   but such cases are probably all bugs, and are now easy to find.

Some finessing is still in order here -- in particular, we use a very general
mechanism for handling the DefinitionData pointer on CXXRecordData, and a more
targeted approach would be more compact.

Also, the MayHaveOutOfDateDef mechanism should now be expunged, since it was
addressing only a corner of the full problem space here. That's not covered
by this patch.

Early performance benchmarks show that this makes no measurable difference to 
Clang performance without modules enabled (and fixes a major correctness issue
with modules enabled). I'll revert if a full performance comparison shows any
problems.

llvm-svn: 209046
2014-05-16 23:01:30 +00:00
Alp Toker 1761f11801 Eliminate DefaultImageName from the Driver constructor
All callers were passing in "a.out" or garbage so a sensible default works fine
here as a cleanup.

This also brings about the possibility of adapting the value based on the
driver's compatibility mode in future.

The setting can still be changed via Driver::DefaultImageName as needed.

llvm-svn: 208926
2014-05-15 22:26:36 +00:00
Alp Toker c7dc0621a7 Make DiagnosticsEngine non-copyable
Also provide an out-of-line dtor for CompilerInvocation.

Cleanup work that may help reduce header inclusion for IntrusiveRefCntPtr.

llvm-svn: 208512
2014-05-11 22:10:52 +00:00
Ben Langmuir c95e56488d Switch Wmodule-build to a remark
On reflection, this is better despite the missing command-line handling
bits for remarks.  Making this a remark makes it much clearer that
this is purely informational and avoids the negative connotations of a
'warning'.

llvm-svn: 208367
2014-05-08 22:36:02 +00:00
Ed Maste 279b97c130 Enable standalone-debug by default on FreeBSD
It was set by default on Darwin in r198655.  The same usability issues
with DTrace and LLDB apply to FreeBSD, so set it by default there too.

rdar://problem/15758808
http://llvm.org/pr19676

Differential Revision: http://reviews.llvm.org/D3448

llvm-svn: 208310
2014-05-08 13:01:26 +00:00
Nico Weber 824285ec53 Let ASTReader optionally delete its ASTDeserializationListener.
Use this to fix the leak of DeserializedDeclsDumper and DeserializedDeclsChecker
in FrontendAction (found by LSan), PR19560.

The "delete this" bool is necessary because both PCHGenerator and ASTUnit
return the same object from both getDeserializationListener() and
getASTMutationListener(), so ASTReader can't just have a unique_ptr.

It's also not possible to just let FrontendAction (or CompilerInstance) own
these listeners due to lifetime issues (see comments on PR19560).

Finally, ASTDeserializationListener can't easily be refcounted, since several of
the current listeners are allocated on the stack.

Having this bool isn't ideal, but it's a pattern that's used in other places in
the codebase too, and it seems better than leaking.

llvm-svn: 208277
2014-05-08 04:26:47 +00:00
Saleem Abdulrasool 62849c677c Driver: parse -mcmodel earlier
This addresses an existing FIXME item in the driver.  The code model flag was
parsed in the actual tool rather than in the driver.  This was problematic since
the value may be invalid.  In that case, we would silently treat it as a default
value in non-assert builds, and abort in assert builds.  Add a check in the
driver to validate that the value being passed is valid, and if not provide a
proper error message.

llvm-svn: 208275
2014-05-08 02:28:32 +00:00
Richard Smith 3d23c42029 If an instantiation of a template is required to be a complete type, check
whether the definition of the template is visible rather than checking whether
the instantiated definition happens to be in an imported module.

llvm-svn: 208150
2014-05-07 02:25:43 +00:00
Ben Langmuir 1ecf750ec8 Add -Wmodule-build to make it easy to see when modules are (re)built
Warning is default ignore, and not in -Wall.

llvm-svn: 207975
2014-05-05 16:58:47 +00:00
Ben Langmuir 527040e0c8 Make module self-import an error
Ideally, importing Foo.a from Foo.b would "do the right thing", but
until it does, this patch makes it an error rather than allow it to
silently be ignored.

llvm-svn: 207948
2014-05-05 05:31:33 +00:00
Argyrios Kyrtzidis d113788ecb Speculative fix to unbreak the buildbots that fail with compiler errors.
llvm-svn: 207933
2014-05-04 05:27:24 +00:00
Argyrios Kyrtzidis 1b1256a1b1 [Modules] Add the resource-dir to the module hash.
llvm-svn: 207931
2014-05-04 04:35:31 +00:00
Alp Toker 0804343733 Eliminate ASTContext's DelayInitialization flag
Having various possible states of initialization following construction doesn't
add value here.

Also remove the unused size_reserve parameter.

llvm-svn: 207897
2014-05-03 03:46:04 +00:00
Alp Toker 9663780e35 Reformat code following Preprocessor constructor updates
Landing this separately to make the previous commits easy to follow at home.

llvm-svn: 207826
2014-05-02 03:43:38 +00:00
Alp Toker 1ae02f68be Factor TargetInfo pointer/DelayInitialization bool pair out of Preprocessor ctor
The Preprocessor::Initialize() function already offers a clear interface to
achieve this, further reducing the confusing number of states a newly
constructed preprocessor can have.

llvm-svn: 207825
2014-05-02 03:43:30 +00:00
Alp Toker 23aa353291 Remove unused IncrProcessing parameter from Preprocessor ctor
Preprocessor::enableIncrementalProcessing() provides a consistent interface to
enable the feature.

llvm-svn: 207824
2014-05-02 03:43:21 +00:00
Tobias Grosser 86a85678f2 Support 'remark' in VerifyDiagnosticConsumer
After Diego added support for -Rpass=inliner we have now in-tree remarks which
we can use to properly test this feature.

llvm-svn: 207765
2014-05-01 14:06:01 +00:00
Lubos Lunak 576a0415cb do not warn about unknown pragmas in modes that do not handle them (pr9537)
And refactor to have just one place in code that sets up the empty
pragma handlers.

llvm-svn: 207758
2014-05-01 12:54:03 +00:00
Rafael Espindola b5b622a03c Drop non-cfi assembly support from clang.
After this patch clang will ignore -fdwarf2-cfi-asm and -ffno-dwarf2-cfi-asm and
always print assembly that uses cfi directives.

In llvm, MC itself supports cfi since the end of 2010 (support started
in r119972, is reported in the 2.9 release notes).

In binutils the support has been around for much longer. It looks like
support started to be added in May 2003. It is available in 2.15
(31-Aug-2011, 2.14 is from 12-Jun-2003).

llvm-svn: 207602
2014-04-30 02:22:09 +00:00
Argyrios Kyrtzidis fe6b880de5 [PCH/Modules] Don't tie TargetOptions::LinkerVersion to a module/PCH, it's a driver only thing and doesn't affect any language/preprocessor/etc. semantics.
rdar://16714526

llvm-svn: 207570
2014-04-29 18:45:01 +00:00
Ben Langmuir b92de02f17 Reapply r207477 and r207479 without cyclic dependency
Fixed by moving ProcessWarningOptions from Frontend into Basic. All of
the dependencies for ProcessWarningOptions were already in Basic, so
this was a small change.

llvm-svn: 207549
2014-04-29 16:25:26 +00:00
NAKAMURA Takumi 366363dac1 Revert r207477 (and r207479), "Check -Werror options during module validation"
It tried to introduce cyclic dependencies. Serialization shouldn't depend on Frontend, since Frontend depends on Serialization.

llvm-svn: 207497
2014-04-29 06:58:59 +00:00
Ben Langmuir be84adbf1b Check -Werror options during module validation
This patch checks whether the diagnostic options that could lead to
errors (principally -Werror) are consistent between when a module was
built and when it is loaded.  If there are new -Werror flags, then the
module is rebuilt.  In order to canonicalize the options we do this
check at the level of the constructed DiagnosticsEngine, which contains
the final set of diag to diagnostic level mappings.  Currently we only
rebuild with the new diagnostic options, but we intend to refine this in
the future to include the union of the new and old flags, since we know
the old ones did not cause errors.  System modules are only rebuilt when
-Wsystem-headers is enabled.

One oddity is that unlike checking language options, we don’t perform
this diagnostic option checking when loading from a precompiled header.
The reason for this is that the compiler cannot rebuild the PCH, so
anything that requires it to be rebuilt effectively leaks into the build
system.  And in this case, that would mean the build system
understanding the complex relationship between diagnostic options and
the underlying diagnostic mappings, which is unreasonable.  Skipping the
check is safe, because these options do not affect the generated AST.
You simply won’t get new build errors due to changed -Werror options
automatically, which is also true for non-module cases.

llvm-svn: 207477
2014-04-29 00:36:53 +00:00
Justin Bogner f24d9c9158 [cleanup] Fix an 80-column violation
llvm-svn: 207446
2014-04-28 20:58:58 +00:00
Nico Weber 47d387c9ec Remove unused using statement.
llvm-svn: 207427
2014-04-28 17:54:37 +00:00
David Blaikie 103a2de0b4 Push unique_ptr ownership of ASTUnits further back into their factories.
llvm-svn: 207237
2014-04-25 17:01:33 +00:00
Nico Weber dc493cf13b Don't leak _all_ directives in -verify mode. Found by LSan, PR19520.
llvm-svn: 207079
2014-04-24 05:39:55 +00:00
Nico Weber 568dacc4aa Don't leak invalid RegexDirectives. Probably a small part of PR19520.
llvm-svn: 207077
2014-04-24 05:32:03 +00:00
Nico Weber 1f29ccf3fb Revert the "don't leak" part of r207065, looks like the bots don't like it :-/
http://bb.pgr.jp/builders/cmake-clang-x86_64-linux/builds/22506

llvm-svn: 207070
2014-04-24 03:31:27 +00:00
Nico Weber 7de358e936 Don't leak objects in load-from-ast path unless DisableFree is set.
Also update a comment to match a code change that was done in r110978.

llvm-svn: 207065
2014-04-24 02:42:04 +00:00
Nico Weber 1ada62654f Bury leaked sema pointer when reading from AST files.
Should suppress several LSan reports.

llvm-svn: 207056
2014-04-24 00:51:03 +00:00
John Thompson 2d94bbb0c0 Quick fix for layering that broke shared library build.
llvm-svn: 207011
2014-04-23 19:04:32 +00:00
John Thompson e0a5afe812 Fix unused variable.
llvm-svn: 206981
2014-04-23 13:45:44 +00:00
John Thompson 2255f2ce90 Initial implementation of -modules-earch-all option, for searching for symbols in non-imported modules.
llvm-svn: 206977
2014-04-23 12:57:01 +00:00
Ben Langmuir 749323fadb Attempt to fix null ASTContext in ASTUnit error path
We don't need the ASTContext for the diagnostics, only the language
options, which we can get from the compiler invocation. It worries me
how many categorically different states the ASTUnit class can be in
depending on how it is being constructed/used.

llvm-svn: 206909
2014-04-22 17:40:12 +00:00
Diego Novillo 9f23997732 Allow adding a value to a flag in diagnostics.
Summary:
This allows callers of Diags.Report() to append a value to the name of
the flag associated with the diagnostic. This is useful in cases like
the -Rpass flag, where we want the diagnostic to show the name of the
pass that matched the pattern. Instead of showing "... [-Rpass]", this
allows us to show "... [-Rpass=passname]".

Reviewers: rsmith

CC: cfe-commits

Differential Revision: http://reviews.llvm.org/D3441

llvm-svn: 206826
2014-04-21 23:16:03 +00:00
Ben Langmuir ec8c975214 Don't build modules with (submodules with) missing headers
Unless they are in submodules that aren't available anyway, due to
requirements not being met.  Also, mark children as unavailable when the
parent is.

llvm-svn: 206664
2014-04-18 22:07:31 +00:00
Ben Langmuir 532fdc0d4f Don't read CompilerInstance fields that don't exist in ASTUnit
When transferring data from a CompilerInstance in an error path we need
to consider cases where the various fields are uninitialized.

llvm-svn: 206644
2014-04-18 20:39:48 +00:00
Justin Bogner 25463f1577 Teach users of OnDiskHashTable to define hash_value and offset types
This paves the way to making OnDiskHashTable work with hashes that are
not 32 bits wide and to making OnDiskHashTable work very large hash
tables. The LLVM change to use these types is upcoming.

llvm-svn: 206640
2014-04-18 20:27:24 +00:00
Justin Bogner bb094f0669 Remove OnDiskHashTable.h, since it's been moved to llvm
llvm-svn: 206637
2014-04-18 19:57:06 +00:00
Reid Kleckner 6f6e76dfe0 Revert "Move -fms-extensions predefined macros into InitPreprocessor"
This reverts commit r206413.

This was proposed before, but it's not clear if this is really a good
idea:
http://reviews.llvm.org/D3034

llvm-svn: 206415
2014-04-16 20:10:16 +00:00
Reid Kleckner ae4759df00 Move -fms-extensions predefined macros into InitPreprocessor
If someone on Linux asks for -fms-extensions, there's no reason not to
define the feature test macros that MSVC defines.

llvm-svn: 206413
2014-04-16 19:47:06 +00:00
Diego Novillo 829b170048 Add support for optimization reports.
Summary:
This patch adds a new flag -Rpass=. The flag indicates the name
of the optimization pass that should emit remarks stating when it
made a transformation to the code.

This implements the design I proposed in:

https://docs.google.com/document/d/1FYUatSjZZO-zmFBxjOiuOzAy9mhHA8hqdvklZv68WuQ/edit?usp=sharing

Other changes:
- Add DiagnosticIDs::isRemark(). Use it in printDiagnosticOptions to
  print "-R" instead of "-W" in the diagnostic message.

- In BackendConsumer::OptimizationRemarkHandler, get a SourceLocation
  object out of the file name, line and column number. Use that location
  in the call to Diags.Report().

- When -Rpass is used without debug info a note is emitted alerting
  the user that they need to use -gline-tables-only -gcolumn-info to
  get this information.

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3226

llvm-svn: 206401
2014-04-16 16:54:24 +00:00
Ben Langmuir 8832c066a2 Honour -ivfsoverlay in ASTUnit to match clang
This allows code indexing, etc. to use the VFS in the same way as the
compiler.

llvm-svn: 206309
2014-04-15 18:16:25 +00:00
Ben Langmuir 4f5212a60e Add module name and module map file to -module-file-info
llvm-svn: 206217
2014-04-14 22:12:44 +00:00
Ben Langmuir beee15e721 Allow multiple modules with the same name to coexist in the module cache
To differentiate between two modules with the same name, we will
consider the path the module map file that they are defined by* part of
the ‘key’ for looking up the precompiled module (pcm file).
Specifically, this patch renames the precompiled module (pcm) files from
  cache-path/<module hash>/Foo.pcm
to
  cache-path/<module hash>/Foo-<hash of module map path>.pcm

In addition, I’ve taught the ASTReader to re-resolve the names of
imported modules during module loading so that if the header search
context changes between when a module was originally built and when it
is loaded we can rebuild it if necessary.  For example, if module A
imports module B

first time:
clang -I /path/to/A -I /path/to/B ...

second time:
clang -I /path/to/A -I /different/path/to/B ...

will now rebuild A as expected.

* in the case of inferred modules, we use the module map file that
allowed the inference, not the __inferred_module.map file, since the
inferred file path is the same for every inferred module.

llvm-svn: 206201
2014-04-14 18:00:01 +00:00
Daniel Jasper 962b38e4f3 Add -fmodules-strict-decluse to check that all headers are in modules
Review: http://reviews.llvm.org/D3335
llvm-svn: 206027
2014-04-11 11:47:45 +00:00
Richard Smith 50996ce1e3 If a header is explicitly included in module A, and excluded from an umbrella
directory in module B, don't include it in module B!

llvm-svn: 205762
2014-04-08 13:13:04 +00:00
Reid Kleckner 0dc06b9a3d -fms-extensions: Don't define __PRETTY_FUNCTION__ to __FUNCTION__
This reverts r90596 from 2009. Having this macro definition makes Clang
strictly less useful with -fms-extensions.

llvm-svn: 205729
2014-04-07 19:27:58 +00:00
Argyrios Kyrtzidis 4382fe74bb [Frontend] If the module file lock owner have died, try to get the lock again. Needs llvm r205683.
llvm-svn: 205684
2014-04-06 03:21:44 +00:00
Tim Northover a2ee433c8d ARM64: initial clang support commit.
This adds Clang support for the ARM64 backend. There are definitely
still some rough edges, so please bring up any issues you see with
this patch.

As with the LLVM commit though, we think it'll be more useful for
merging with AArch64 from within the tree.

llvm-svn: 205100
2014-03-29 15:09:45 +00:00
Justin Bogner e1c147c3cf Reapply "OnDiskHashTable: Use EndianStream.h to write little endian ostreams"
Committed this by accident before it was done last time.

Original message:

    Rather than rolling our own functions to write little endian data
    to an ostream, we can use the support in llvm's EndianStream.h.

    No functional change.

llvm-svn: 205061
2014-03-28 22:03:19 +00:00
Justin Bogner d42773bcc8 Revert "OnDiskHashTable: Use EndianStream.h to write little endian ostreams"
This reverts commit r205044.

llvm-svn: 205047
2014-03-28 20:32:11 +00:00
Justin Bogner a06321efdd OnDiskHashTable: Use EndianStream.h to write little endian ostreams
Rather than rolling our own functions to write little endian data to
an ostream, we can use the support in llvm's EndianStream.h.

No functional change.

llvm-svn: 205044
2014-03-28 20:03:54 +00:00
Saleem Abdulrasool 377066a5f5 Use the new Windows environment for target detection
This follows the LLVM change to canonicalise the Windows target triple
spellings.  Rather than treating each Windows environment as a single entity,
the environments are now modelled properly as an environment.  This is a
mechanical change to convert the triple use to reflect that change.

llvm-svn: 204978
2014-03-27 22:50:18 +00:00
David Blaikie 7e2fd943ae Support for -Wa,-compress-debug-sections.
Also, while I'm here, support -nocompress-debug-sections too.

llvm-svn: 204959
2014-03-27 20:47:30 +00:00
Alexander Kornienko 18fa48c9f9 Move the -i[no-]system-prefix options from CC1Options.td to Options.td.
Summary:
This allows them to be used without -cc1 the same way as -I and -isystem.
Renamed the options to --system-header-prefix=/--no-system-header-prefix to avoid interference with -isystem and make the intent of the option cleaner.

Reviewers: rsmith

Reviewed By: rsmith

CC: cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D3185

llvm-svn: 204775
2014-03-26 01:39:59 +00:00
Evgeniy Stepanov 2bfcaabdec [msan] -fsanitize-memory-track-origins=[level] flag and docs.
This change turns -fsanitize-memory-track-origins into
-fsanitize-memory-track-origins=[level] flag (keeping the old one for
compatibility). Possible levels are 0 (off), 1 (default) and 2 (incredibly
detailed). See docs (part of this patch) for more info.

llvm-svn: 204346
2014-03-20 14:58:36 +00:00
Yunzhong Gao fcdc45ff2d Creating a printing policy for "half":
Since "half" is an OpenCL keyword and clang accepts __fp16 as an extension for
other languages, error messages and metadata (and hence debug info) should refer
to the half-precision floating point as "__fp16" instead of "half" when
compiling for non-OpenCL languages. This patch creates a new printing policy for
half in a similar manner to what is done for bool and wchar_t.

Differential Revision: http://llvm-reviews.chandlerc.com/D2952

llvm-svn: 204164
2014-03-18 17:55:18 +00:00
Richard Smith ae385084c5 Implement the MS extension __identifier properly: take a token and strip it of
its keywordliness.

llvm-svn: 203987
2014-03-15 00:06:08 +00:00
Argyrios Kyrtzidis 6d0753d42a [Modules] Emit the module file paths as dependencies of the PCH when we are building one.
This is because the PCH is tied to the module files, if one of the module files changes or gets removed
the build system should re-build the PCH file.

rdar://16321245

llvm-svn: 203885
2014-03-14 03:07:38 +00:00
Argyrios Kyrtzidis 68ccbe01b0 [Modules] Make sure that the synthesized file "__inferred_module.map" doesn't show up as dependency of a module file.
Follow-up for rdar://15459210

llvm-svn: 203882
2014-03-14 02:26:31 +00:00
Craig Topper 456705304a De-virtualize a method. It's called through template magic and doesn't override anything.
llvm-svn: 203764
2014-03-13 07:14:47 +00:00
Craig Topper 34d8e21d32 Remove unreachable PragmaCaptured method. It's not a real PPCallback.
llvm-svn: 203759
2014-03-13 06:19:24 +00:00
Craig Topper afa7cb3aa5 [C++11] Add 'override' keyword to virtual methods that override their base class.
llvm-svn: 203758
2014-03-13 06:07:04 +00:00
Roman Divacky b048007243 Dont unconditionally add gcc4.2 include paths on FreeBSD.
Newer FreeBSD doesnt ship with gcc and defaults to using libc++.

llvm-svn: 203700
2014-03-12 19:32:42 +00:00
Hans Wennborg 501eadb429 Check for LLVM_ON_WIN32 instead of _WIN32.
This is a follow-up to r203624 to address Anton's comment.

llvm-svn: 203668
2014-03-12 16:07:46 +00:00
Ben Langmuir dcf73861a5 Add an option -fmodules-validate-system-headers
When enabled, always validate the system headers when loading a module.
The end result of this is that when these headers change, we will notice
and rebuild the module.

llvm-svn: 203630
2014-03-12 00:06:17 +00:00
Richard Smith 723928c7dc If a module map is found in a relative -I path, convert the filenames within it
to absolute paths when building the includes file for the module. Without this,
the module build would fail, because the relative paths we were using are not
necessarily relative to a directory in our include path.

llvm-svn: 203528
2014-03-11 02:02:47 +00:00
Robert Lytton 2c942c64fb Make __LITTLE_ENDIAN__/__BIG_ENDOAN__ common PredefinedMacros
llvm-svn: 203455
2014-03-10 12:06:29 +00:00
Ahmed Charles dfca6f97bc [C++11] Replace OwningPtr include with <memory>.
llvm-svn: 203389
2014-03-09 11:36:40 +00:00
Argyrios Kyrtzidis b255ee91a7 [libclang] Don't pad the main buffer for the preamble.
Padding does not seem to be useful currently, and it leads to bogus location if an error
points to the end of the file.

rdar://15836513

llvm-svn: 203370
2014-03-09 04:24:57 +00:00
Aaron Ballman 23a6dcb365 [C++11] Replacing EnumDecl iterators enumerator_begin() and enumerator_end() with iterator_range enumerators(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203353
2014-03-08 18:45:14 +00:00
Richard Smith 9bca298f6d Module [extern_c] attribute: inherit to submodules, don't write 'extern "C"'
blocks when building in C mode, and serialize and deserialize the attribute.

llvm-svn: 203317
2014-03-08 00:03:56 +00:00
Benjamin Kramer 4cadf292a5 [C++11] Revert uses of lambdas with array_pod_sort.
Looks like GCC implements the lambda->function pointer conversion differently.

llvm-svn: 203293
2014-03-07 21:51:58 +00:00
Benjamin Kramer 15ae783e14 [C++11] Convert sort predicates into lambdas.
No functionality change.

llvm-svn: 203289
2014-03-07 21:35:40 +00:00
Ahmed Charles b89843299a Replace OwningPtr with std::unique_ptr.
This compiles cleanly with lldb/lld/clang-tools-extra/llvm.

llvm-svn: 203279
2014-03-07 20:03:18 +00:00
Aaron Ballman 629afaefe0 [C++11] Replacing DeclBase iterators decls_begin() and decls_end() with iterator_range decls(). The same is true for the noload versions of these APIs. Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203278
2014-03-07 19:56:05 +00:00
Ahmed Charles 9a16beb8bc Change OwningPtr::take() to OwningPtr::release().
This is a precursor to moving to std::unique_ptr.

llvm-svn: 203275
2014-03-07 19:33:25 +00:00
Aaron Ballman f6bf62e2d0 [C++11] Replacing FunctionDecl iterators param_begin() and param_end() with iterator_range params(). Updating all of the usages of the iterators with range-based for loops.
llvm-svn: 203248
2014-03-07 15:12:56 +00:00
Argyrios Kyrtzidis e1974dcd92 [Preprocessor] Pass TranslationUnitKind to the preprocessor and if it is TU_Prefix
avoid warning for unused macros.

rdar://15034698

llvm-svn: 203213
2014-03-07 07:47:58 +00:00
Ben Langmuir cb69b57b2a Add dependencies from imported modules with -MD
Add module dependencies to the dependency files created by -MD/-MMD/etc.
by attaching an ASTReaderListener that will call into the dependency
file generator when a module input file is seen in the serialized AST.

llvm-svn: 203208
2014-03-07 06:40:32 +00:00
Yunzhong Gao 820c687e9e The Visual Studio IDE changed behavior in VS2012. It used to be the case that
the clang diagnostic has to report a column number one less than the correct
value in order for the IDE to move the cursor to the expected location. This
behavior is changed in VS2012 and VS2013 so that the IDE is now expecting the
column number to match the actual source location.
  Before: source(line, column-1): type: message
  After: source(line, column): type: message

This patch changes -fdiagnostics-format=msvc to match the new VS2012 and VS2013
when fmsc-version is 1700 or greater.

Differential Revision: http://llvm-reviews.chandlerc.com/D2949

llvm-svn: 203183
2014-03-07 00:23:36 +00:00
Alexey Bataev d4dbdf5438 [OPENMP] Updated comments and _OPENMP macro value for OpenMP 4.0 (for 'omp simd' support)
llvm-svn: 203114
2014-03-06 12:27:56 +00:00
Alexey Bataev 186b28a8cf [OPENMP] Added option -fopenmp=libiomp5|libgomp
llvm-svn: 203081
2014-03-06 05:43:53 +00:00
Richard Smith 7bea1d42d8 When building a module from the command line via -emit-module, add an entry to
the module build stack for the module being built, so we can correctly detect
recursive module builds.

llvm-svn: 203006
2014-03-05 20:55:36 +00:00
Richard Smith 841f1c782e [C++11] Simplify a callback to use a lambda.
llvm-svn: 202897
2014-03-04 21:50:01 +00:00
Jordan Rose 7ef1c387a0 Serialized diagnostic severity levels should be stable.
Serialized diagnostics were accidentally using the AST diagnostic level values
rather than a dedicated stable enum, so the addition of "remark" broke the
reading of existing serialized diagnostics files. I've added a .dia file
generated from Xcode 5's Clang to make sure we don't break this in the future.

llvm-svn: 202733
2014-03-03 18:29:52 +00:00
Argyrios Kyrtzidis 1594c15500 Introduce '-fmodules-user-build-path' which accepts the "canonical" path to a user workspace build.
This is used to avoid conflicts with user modules with the same name from different workspaces.

rdar://16042513

llvm-svn: 202683
2014-03-03 08:12:05 +00:00
David Majnemer dbd6acb64b Revert "Preprocessor: Add __ALIGNOF_MAX_ALIGN_T__"
This commit reverts r201037, it's functionality is not needed given the
definition of std::max_align_t in libcxx circa r201843.

llvm-svn: 202667
2014-03-02 23:01:10 +00:00
Benjamin Kramer 4527fb2f33 [C++11] Use std::atomic instead of LLVM's.
No intended functionality change.

llvm-svn: 202652
2014-03-02 17:08:31 +00:00
Benjamin Kramer 867ea1d426 [C++11] Replace llvm::tie with std::tie.
llvm-svn: 202639
2014-03-02 13:01:17 +00:00
Craig Topper a798a9db93 Switch all uses of LLVM_OVERRIDE to just use 'override' directly.
llvm-svn: 202625
2014-03-02 09:32:10 +00:00
Richard Smith 7794486846 Add [extern_c] attribute for modules, allowing a C module to be imported within an extern "C" block in C++ code.
llvm-svn: 202615
2014-03-02 05:58:18 +00:00
Benjamin Kramer bbdd7640e8 [C++11] Replace verbose functors with succinct lambdas
No functionality change.

llvm-svn: 202590
2014-03-01 14:48:57 +00:00
Ben Langmuir d066d4c849 Reapply fixed "Honour 'use-external-names' in FileManager"
Was r202442

There were two issues with the original patch that have now been fixed.
1. We were memset'ing over a FileEntry in a test case. After adding a
   std::string to FileEntry, this still happened to not break for me.
2. I didn't pass the FileManager into the new compiler instance in
   compileModule. This was hidden in some cases by the fact I didn't
   clear the module cache in the test.

Also, I changed the copy constructor for FileEntry, which was memcpy'ing
in a (now) unsafe way.

llvm-svn: 202539
2014-02-28 21:16:07 +00:00
Tobias Grosser 741602461d Add 'remark' diagnostic type in 'clang'
A 'remark' is information that is not an error or a warning, but rather some
additional information provided to the user. In contrast to a 'note' a 'remark'
is an independent diagnostic, whereas a 'note' always depends on another
diagnostic.

A typical use case for remark nodes is information provided to the user, e.g.
information provided by the vectorizer about loops that have been vectorized.

This patch provides the initial implementation of 'remarks'. It includes the
actual definiton of the remark nodes, their printing as well as basic parameter
handling. We are reusing the existing diagnostic parameters which means a remark
can be enabled with normal '-Wdiagnostic-name' flags and can be upgraded to
an error using '-Werror=diagnostic-name'. '-Werror' alone does not upgrade
remarks.

This patch is by intention minimal in terms of parameter handling. More
experience and more discussions will most likely lead to further enhancements
in the parameter handling.

llvm-svn: 202475
2014-02-28 09:11:08 +00:00
Argyrios Kyrtzidis 24c55228a9 [ASTUnit] Don't let the preamble diagnostics out-live the CompilerInstance that created them,
this is inherently unsafe.

Instead get the diagnostic info into a SourceManager-independent form.

llvm-svn: 202471
2014-02-28 07:11:01 +00:00
Ben Langmuir c8a71468b7 Split FileEntry name vs. isValid
This is a small bit of refactoring in preparation for FileEntry owning
the storage for its own name.

llvm-svn: 202412
2014-02-27 17:23:33 +00:00
Argyrios Kyrtzidis 1b7ed91e44 [ASTUnit] Fix use-after-free bug in ASTUnit::getMainBufferWithPrecompiledPreamble().
With r197755 we started reading the contents of buffer file entries, but the
buffers may point to ASTReader blobs that have been disposed.

Fix this by having the CompilerInstance object keep a reference to the ASTReader
as well as having the ASTContext keep reference to the ExternalASTSource.

This was very difficult to construct a test case for.
rdar://16149782

llvm-svn: 202346
2014-02-27 04:11:59 +00:00
NAKAMURA Takumi 9698686505 [CMake] Use LINK_LIBS instead of target_link_libraries().
llvm-svn: 202238
2014-02-26 06:41:29 +00:00
Ben Langmuir 801272a98c Add a driver option -ivfsoverlay
Reads the description of a virtual filesystem from a file and overlays
it over the real file system.

llvm-svn: 202176
2014-02-25 18:23:47 +00:00
Richard Smith 5b2f7c5f60 If preprocessing results in a token with leading whitespace that was expanded
from a macro in column 0, ensure that we print whitespace before it in the -E
output. Patch by Harald van Dijk!

llvm-svn: 202070
2014-02-24 20:50:36 +00:00
Richard Barton c9b5f35ec1 Implement -fno-short-wchar
llvm-svn: 202058
2014-02-24 18:43:28 +00:00
Rafael Espindola 4fbd373815 Update for llvm api change.
llvm-svn: 202053
2014-02-24 18:20:21 +00:00
Rafael Espindola 04a13befd8 Don't assume that F_None is the default. It is about to change.
llvm-svn: 202040
2014-02-24 15:06:52 +00:00
Richard Smith 51bacfd9c7 Update __cplusplus to match the value in the C++14 DIS preview (D3937).
llvm-svn: 202003
2014-02-24 01:35:45 +00:00
NAKAMURA Takumi e842e4b2f1 [CMake] Resurrect mis-dropped dependency to ClangDriverOptions since r201842.
llvm-svn: 201978
2014-02-23 13:44:09 +00:00
Saleem Abdulrasool cfeb90d7a8 clang: add -f{no-,}integrate-as as consistent parameters
The integrated assembler is a feature.  This makes the new flags the default
option, and the previous versions aliases.  Ideally, at some point the aliases
would be entirely removed.

llvm-svn: 201963
2014-02-23 00:40:30 +00:00
NAKAMURA Takumi 7da9487dd4 [CMake] Get rid of explicit dependencies to include/clang/*.inc and introduce CLANG_TABLEGEN_TARGETS.
This does;
  - clang_tablegen() adds each tblgen'd target to global property CLANG_TABLEGEN_TARGETS as list.
  - List of targets is added to LLVM_COMMON_DEPENDS.
  - all clang libraries and targets depend on generated headers.

You might wonder this would be regression, but in fact, this is little loss.
  - Almost all of clang libraries depend on tblgen'd files and clang-tblgen.
  - clang-tblgen may cause short stall-out but doesn't cause unconditional rebuild.
  - Each library's dependencies to tblgen'd files might vary along headers' structure.
    It made hard to track and update *really optimal* dependencies.

Each dependency to intrinsics_gen and ClangSACheckers is left as DEPENDS.

llvm-svn: 201842
2014-02-21 07:59:59 +00:00
Rafael Espindola 33ebd2171e Accept -no-integrated-as in -cc1 and forward it to llvm.
llvm-svn: 201837
2014-02-21 03:14:07 +00:00
Reid Kleckner 0e73ec4550 Expand macros in pragmas with -fms-extensions and -E
gcc never expands macros in pragmas and MSVC always expands macros
before processing pragmas.  Clang usually allows macro expansion, except
in a handful of pragmas, most of which are handled by the lexer.

Also remove PPCallbacks for pragmas that are currently handled in the
parser.  Without a Parser, such as with clang -E, these callbacks would
never be called.

Fixes PR18576.

llvm-svn: 201821
2014-02-20 22:59:51 +00:00
Ben Langmuir c8130a74f4 Recommit virtual file system
Previously reverted in r201755 due to causing an assertion failure.

I've removed the offending assertion, and taught the CompilerInstance to
create a default virtual file system inside createFileManager. In the
future, we should be able to reach into the CompilerInvocation to
customize this behaviour without breaking clients that don't care.

llvm-svn: 201818
2014-02-20 21:59:23 +00:00
Juergen Ributzka a32575e4f6 Reverting the virtual file system implementation, because it triggers an assertion
in our internal build bots.

This reverts commits 201618, 201635, 201636, 201639, 201685, 201691, and 201696.

llvm-svn: 201755
2014-02-20 05:24:58 +00:00
Reid Kleckner 588c937228 Use llvm::DeleteContainerSeconds when possible
llvm-svn: 201739
2014-02-19 23:44:52 +00:00
Ben Langmuir b50b23f9ac Pass VFS from CompilerInstance to FileManager
This change was somehow missed from r201618

llvm-svn: 201636
2014-02-19 03:34:59 +00:00
Ben Langmuir 090610d37a Initial implementation of virtual file system
This adds the minimum virtual file system support to start migrating
FileManager onto the VFS.

Originally discussed here:
http://lists.cs.uiuc.edu/pipermail/cfe-dev/2014-February/035188.html

Differential Revision: http://llvm-reviews.chandlerc.com/D2745

llvm-svn: 201618
2014-02-19 00:10:30 +00:00
Reid Kleckner c0dca6ded7 MS ABI: Implement #pragma vtordisp() and clang-cl /vdN
These features are new in VS 2013 and are necessary in order to layout
std::ostream correctly.  Currently we have an ABI incompatibility when
self-hosting with the 2013 stdlib in our convertible_fwd_ostream wrapper
in gtest.

This change adds another implicit attribute, MSVtorDispAttr, because
implicit attributes are currently the best way to make sure the
information stays on class templates through instantiation.

Reviewers: majnemer

Differential Revision: http://llvm-reviews.chandlerc.com/D2746

llvm-svn: 201274
2014-02-12 23:50:26 +00:00
Dmitri Gribenko f430da4de6 Add an option to allow Clang verify source files for a module only once during
the build

When Clang loads the module, it verifies the user source files that the module
was built from.  If any file was changed, the module is rebuilt.  There are two
problems with this:
1. correctness: we don't verify system files (there are too many of them, and
   stat'ing all of them would take a lot of time);
2. performance: the same module file is verified again and again during a
   single build.

This change allows the build system to optimize source file verification.  The
idea is based on the fact that while the project is being built, the source
files don't change.  This allows us to verify the module only once during a
single build session.  The build system passes a flag,
-fbuild-session-timestamp=, to inform Clang of the time when the build started.
The build system also requests to enable this feature by passing
-fmodules-validate-once-per-build-session.  If these flags are not passed, the
behavior is not changed.  When Clang verifies the module the first time, it
writes out a timestamp file.  Then, when Clang loads the module the second
time, it finds a timestamp file, so it can compare the verification timestamp
of the module with the time when the build started.  If the verification
timestamp is too old, the module is verified again, and the timestamp file is
updated.

llvm-svn: 201224
2014-02-12 10:33:14 +00:00
Daniel Jasper d90ec5717a Fix memory leak introduced by r201010.
llvm-svn: 201220
2014-02-12 08:45:05 +00:00
David Majnemer 86c318f496 MS ABI: Add support for the -vm{b,g,s,m,v} flags
These flags control the inheritance model initially used by the
translation unit.

Differential Revision: http://llvm-reviews.chandlerc.com/D2741

llvm-svn: 201175
2014-02-11 21:05:00 +00:00
Josh Magee e0fc1a80cb [stackprotector] Add command line option -fstack-protector-strong
This option has the following effects:
 * It adds the sspstrong IR attribute to each function within the CU.
 * It defines the macro __SSP_STRONG__ with the value of 2.

Differential Revision: http://llvm-reviews.chandlerc.com/D2717

llvm-svn: 201120
2014-02-11 01:35:14 +00:00
Dmitri Gribenko b41e7e2c92 ASTUnit: simplify remapping files by using the exact same logic in Preprocessor
llvm-svn: 201082
2014-02-10 12:31:34 +00:00
David Majnemer 158ba130ee Preprocessor: Add __ALIGNOF_MAX_ALIGN_T__
TargetInfo::getSuitableAlign() was introduced in r146762 and is defined
as alignof(std::max_align_t).

Introduce __ALIGNOF_MAX_ALIGN_T__ which exposes getSuitableAlign() so
that libc++ may take advantage of it.

llvm-svn: 201037
2014-02-09 05:30:48 +00:00
John McCall 8f80a61914 Remove the -fhidden-weak-vtables -cc1 option. It was dead,
gross, and increasingly replaced through other mechanisms.

llvm-svn: 201011
2014-02-08 00:41:16 +00:00
Dmitri Gribenko c444b57790 ASTUnit: remove dead code in remapping files
ASTUnit contains code to remap files to other files on disk.  This code is not
used.  We only remap files to MemoryBuffers.

llvm-svn: 201010
2014-02-08 00:38:15 +00:00
Ben Langmuir 3d4417c7fd Stat system dependencies when using -verify-pch
We don't stat the system headers to check for stalenes during regular
PCH loading for performance reasons.  When explicitly saying
-verify-pch, we want to check all the dependencies - user or system.

llvm-svn: 200979
2014-02-07 17:31:11 +00:00
Dmitri Gribenko 2febd212d3 ASTUnit: ArrayRef'ize RemappedFiles
llvm-svn: 200975
2014-02-07 15:00:22 +00:00
Ben Langmuir 2cb4a78f93 Add a CC1 option -verify-pch
This option will:
- load the given pch file
- verify it is not out of date by stat'ing dependencies, and
- return 0 on success and non-zero on error

llvm-svn: 200884
2014-02-05 22:21:15 +00:00
Reid Kleckner c50b4bfc1c Fix a -Wformat warning in ASTUnit.cpp
llvm::sys::cas_flag is 'long' instead of 'uint32_t' on win32, because
that's what InterlockedIncrement is defined to accept.

I still don't know if we should be calling fprintf from ASTUnit.cpp
behind a getenv check.

llvm-svn: 200718
2014-02-03 22:20:24 +00:00
Ben Langmuir 5eb7cb74a7 Revert "Fix assertion failures on annot_* tokens in clang -E"
This is causing a failure in the msan buildbot that I am having trouble
reproducing.  Reverting until I can figure out what went wrong.

llvm-svn: 200492
2014-01-30 21:50:18 +00:00
Ben Langmuir 5944ecd64c Fix assertion failures on annot_* tokens in clang -E
In particular, #pragma clang __debug, and #include implicitly changed
into @import were causing assertion failures.

llvm-svn: 200475
2014-01-30 18:09:55 +00:00
Ben Langmuir 9eb229bfe5 Require a module.map file to load a module
Removes some old code that allowed a module to be loaded from a pcm file
even if the module.map could not be found.  Also update a number of
tests that relied on the old behavior.

llvm-svn: 199852
2014-01-22 23:19:39 +00:00
Evgeniy Stepanov d04b861e69 [asan] Remove -fsanitize-address-zero-base-shadow command line
flag from clang, and disable zero-base shadow support on all platforms
where it is not the default behavior.

- It is completely unused, as far as we know.
- It is ABI-incompatible with non-zero-base shadow, which means all
objects in a process must be built with the same setting. Failing to
do so results in a segmentation fault at runtime.
- It introduces a backward dependency of compiler-rt on user code,
which is uncommon and complicates testing.

This is the Clang part of a larger change.

llvm-svn: 199372
2014-01-16 10:19:31 +00:00
Hans Wennborg c9bd88e681 Remove the -cxx-abi command-line flag.
This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples,
Itanium otherwise. It's no longer possible to do weird combinations.

To be able to run a test with a specific ABI without constraining it to a
specific triple, new substitutions are added to lit: %itanium_abi_triple and
%ms_abi_triple can be used to get the current target triple adjusted to the
desired ABI. For example, if the test suite is running with the i686-pc-win32
target, %itanium_abi_triple will expand to i686-pc-mingw32.

Differential Revision: http://llvm-reviews.chandlerc.com/D2545

llvm-svn: 199250
2014-01-14 19:35:09 +00:00
Alp Toker fd8c079dac Switch around the order of MSVCCompat and MicrosoftExt
Full language modes usually get listed before minor language extensions in
LangOpts, so that subsequent sub-modes can predicate on the major modes.

This also lends to a cleanup in CompilerInvocation to better indicate to the
reader that MSVCCompat is a superset of MicrosoftExt.

Cleanup only.

llvm-svn: 199210
2014-01-14 12:53:58 +00:00
Alp Toker bfa3934f27 Rename language option MicrosoftMode to MSVCCompat
There's been long-standing confusion over the role of these two options. This
commit makes the necessary changes to differentiate them clearly, following up
from r198936.

MicrosoftExt (aka. fms-extensions):
 Enable largely unobjectionable Microsoft language extensions to ease
 portability. This mode, also supported by gcc, is used for building software
 like FreeBSD and Linux kernel extensions that share code with Windows drivers.

MSVCCompat (aka. -fms-compatibility, formerly MicrosoftMode):
 Turn on a special mode supporting 'heinous' extensions for drop-in
 compatibility with the Microsoft Visual C++ product. Standards-compilant C and
 C++ code isn't guaranteed to work in this mode. Implies MicrosoftExt.

Note that full -fms-compatibility mode is currently enabled by default on the
Windows target, which may need tuning to serve as a reasonable default.

See cfe-commits for the full discourse, thread 'r198497 - Move MS predefined
type_info out of InitializePredefinedMacros'

No change in behaviour.

llvm-svn: 199209
2014-01-14 12:51:41 +00:00
Hans Wennborg 50501fbe38 Use the MS ABI for Win32 targets by default
In addition to being a sensible default, this is a huge improvement
in test coverage for the MS ABI: any bot that targets Win32 will
now run the test suite using the MS ABI by default.

Differential Revision: http://llvm-reviews.chandlerc.com/D2401

llvm-svn: 199131
2014-01-13 19:48:18 +00:00