Track IntrusiveRefCntPtr::get() changes from LLVM r212366

llvm-svn: 212369

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,

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

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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 f

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

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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 th

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

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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

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

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[C++1z] Implement N3981: Disable trigraphs by default in C++1z mode.

llvm-svn: 211392

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 f

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

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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.

l

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

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Add -std=c++1z flag for C++17 features.

llvm-svn: 211030

Include system_error directly.

llvm-svn: 210802

There is no std::errc:success, remove the llvm one.

llvm-svn: 209959

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

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

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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

[C++11] Use 'nullptr'. Frontend edition.

llvm-svn: 209389

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

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://pr

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

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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 valu

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

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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

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

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Speculative fix to unbreak the buildbots that fail with compiler errors.

llvm-svn: 207933

[Modules] Add the resource-dir to the module hash.

llvm-svn: 207931

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 support

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

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[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

Initial implementation of -modules-earch-all option, for searching for symbols in non-imported modules.

llvm-svn: 206977

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

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

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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