This removes a bunch of llvm_unreachables and makes a File's mutability part of the type system.

llvm-svn: 172297

I give up trying to get all of the settings into COMMON_MAKEFLAGS, so just
do the easy thing and repeat the ones with interesting quoting issues
in each make command.

llvm-svn: 172296

llvm-svn: 172295

process's name contains spaces.  Thanks to
Justin Seyster for the patch.

<rdar://problem/13002540>

llvm-svn: 172294

evaluate expressions.  The expression parser and
IR interpreter are now fully capable of evaluating
expressions with as much (or better) fidelity.

<rdar://problem/12879364>

llvm-svn: 172293

Thanks Eli Friedman for noticing it.

llvm-svn: 172292

Don't always strip the first extension from the module basename when looking for python scripts. Now we take a name like "a.b.c" and look for scripts that are "a_b_c.py", "a_b.py" and "a.py" inside the dSYM.

llvm-svn: 172291

which a particular declaration resides. Use this information to
customize the "definition of 'blah' must be imported from another
module" diagnostic with the module the user actually has to
import. Additionally, recover by importing that module, so we don't
complain about other names in that module.

Still TODO: coming up with decent Fix-Its for these cases, and expand
this recovery approach for other name lookup failures.

llvm-svn: 172290

llvm-svn: 172289

Fixed bug in ObjCARC where we were changing a call from objc_autoreleaseRV => objc_autorelease but were not updating the InstructionClass to IC_Autorelease.

llvm-svn: 172288

Fixed a bug where we were tail calling objc_autorelease causing an object to not be placed into an autorelease pool.

The reason that this occurs is that tail calling objc_autorelease eventually
tail calls -[NSObject autorelease] which supports fast autorelease. This can
cause us to violate the semantic gaurantees of __autoreleasing variables that
assignment to an __autoreleasing variables always yields an object that is
placed into the innermost autorelease pool.

The fix included in this patch works by:

1. In the peephole optimization function OptimizeIndividualFunctions, always
remove tail call from objc_autorelease.
2. Whenever we convert to/from an objc_autorelease, set/unset the tail call
keyword as appropriate.

*NOTE* I also handled the case where objc_autorelease is converted in
OptimizeReturns to an autoreleaseRV which still violates the ARC semantics. I
will be removing that in a later patch and I wanted to make sure that the tree
is in a consistent state vis-a-vis ARC always.

Additionally some test cases are provided and all tests that have tail call marked
objc_autorelease keywords have been modified so that tail call has been removed.

*NOTE* One test fails due to a separate bug that I am going to commit soon. Thus
I marked the check line TMP: instead of CHECK: so make check does not fail.

llvm-svn: 172287

Making a summary for std::wstring as provided by libstdc++ along with a relevant test case

llvm-svn: 172286

Only produce one -Wc++98-compat warning when initializing a reference from an init list with multiple elements.

llvm-svn: 172285

register names in the standalone assembler llvm-mc.

Registers such as $A1 can represent either a 32 or
64 bit register based on the instruction using it.
In addition, based on the abi, $T0 can represent different
32 bit registers.


The problem is resolved by the Mips specific AsmParser 
td definitions changing to work together. Many cases of
RegisterClass parameters are now RegisterOperand.


Contributer: Vladimir Medic
llvm-svn: 172284

llvm-svn: 172283

Providing a data formatter for libc++ std::wstring
In the process, refactoring the std::string data formatter to be written in C++ so that commonalities between the two can be exploited
Also, providing a new API on the ValueObject to navigate a hierarchy by index-path
Lastly, an appropriate test case is included

llvm-svn: 172282

When tryEvict() is looking for a cheaper register in the allocation
order, skip the tail of too expensive registers when possible.

llvm-svn: 172281

Remember the minimum cost of the registers in an allocation order and
the number of registers at the end of the allocation order that have the
same cost per use.

This information can be used to limit the search space for
RAGreedy::tryEvict() when looking for a cheaper register.

llvm-svn: 172280

Previously, -Wunused-comparison ignored comparisons in both macro bodies and
macro arguments, but we would still emit a -Wunused-value warning for either.
Now we correctly emit -Wunused-comparison for expressions in macro arguments.

Also, add isMacroBodyExpansion to SourceManager, to go along with
isMacroArgExpansion.

llvm-svn: 172279

of their own (or are syntheszed), use prperty's comment.
for them. // rdar://12791315

llvm-svn: 172278

llvm-svn: 172277

The MCAsmParser interface defines ParseIdentifier is public. There's no reason
whatsoever for AsmParser (which implements the MCAsmParser interface) to hide
this method.

This is all part of a bigger scheme. Several asm parsing "extensions" use the
main parser properly through the MCAsmParser interface. However,
GenericAsmParser has much more exclusive access and uses implementation details
from the concrete implementation - AsmParser, in which it is also declared as
a friend. This makes for overly coupled code, and even makes it hard to split
GenericAsmParser into a separate file. There's no reason why GenericAsmParser
shouldn't be able to access AsmParser through an abstract interface, as long
as it's actually registered as an extension.

llvm-svn: 172276

Fixed an issue with the auto loading of script resources in debug info files. Any platform can add support for this, and on MacOSX we allow dSYM files to contain python modules that get automatically loaded when a dSYM file is associated with an executable or shared library. 

The modifications will now:
- Let the module locate the symbol file naturally instead of using a function that only works in certain cases. This helps us to locate the script resources as long as the dSYM file can be found.
- Don't try and do any of this if the script interpreter has scripting disabled.
- Allow more than one scripting resource to be found in a symbol file by returning the list
- Load the scripting resources when a symbol file is added via the "target symbols add" command.
- Be smarter about matching the dSYM mach-o file to an existing executable in the target images by stripping extensions on the symfile basname if needed.

llvm-svn: 172275

Fixes PR 14634 and <rdar://problem/12903080>.

llvm-svn: 172274

import incomplete definitions for RecordDecls and then
mark the resulting definition as complete.

llvm-svn: 172273

llvm-svn: 172272

llvm-svn: 172271

llvm-svn: 172270

llvm-svn: 172269

GenericAsmParser extension, where a lot of directives are already being parsed.
The end goal is having just a single place (and a single lookup table) for
all directive parsing.

llvm-svn: 172268

llvm-svn: 172266

llvm-svn: 172265

llvm-svn: 172264

Fixes assertion failure reported in PR 14635 and
<rdar://problem/12902945> respectively.

llvm-svn: 172263

Patch by David Greene.

llvm-svn: 172262

llvm-svn: 172261

came from loading a PCH/module.

llvm-svn: 172259

Adds a check for -Oz, changes the code to not re-visit BBs,
and skips over DBG_VALUE instrs.

Patch by Andy Zhang.

llvm-svn: 172258

Set process return code of 1 in set-xcode-analyzer when Xcode needs to be quit.  Fixes <rdar://problem/12983031>.

llvm-svn: 172256

llvm-svn: 172255