llvm-svn: 154672

Added a --memory option to allow dumping the matching malloc block memory with a default format that makes sense, or that format can be overridden with the --format option.

llvm-svn: 154671

call to 'super' use __rw_objc_super as type of the
'super' meta-data instead of objc_super.
// rdar://11239894

llvm-svn: 154670

Make control flow more explicit for rebuilding property reference expressions without their OpaqueValueExprs

llvm-svn: 154669

out of the tree and use the tooling infrastructure.

llvm-svn: 154668

rebuilt. Fixes <rdar://problem/11052352>. 

llvm-svn: 154667

llvm-svn: 154666

For example, if llc cannot be found, the full python stacktrace is displayed
and no interesting information are provided.
+ fail the process when an exception occurs

llvm-svn: 154665

  - Handle unions
  - Handle C++ classes

llvm-svn: 154664

llvm-svn: 154661

Silence various build warnings from Hexagon backend that show up in release builds. Mostly converting 'assert(0)' to 'llvm_unreachable' to silence warnings about missing returns. Also fold some variable declarations into asserts to prevent the variables from being unused in release builds.

llvm-svn: 154660

GNU __atomic builtins.

llvm-svn: 154659

Fix target specific intrinsic handling to adjust intrinsic number before doing attribute table lookup. Also fix attribute table lookup to handle 'invalid' intrinsic correctly. Fixes PR12542

llvm-svn: 154658

Remove getElfArchType from ELF.h. It's only used in ELFObjectFile.cpp and there's already a copy there. ELF.h was hiding the one there and causing an unused function warning.

llvm-svn: 154657

in the wrong namespace scope. Patch by Jonathan Sauer!

llvm-svn: 154656

http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120409/056126.html

llvm-svn: 154655

in -std=gnu++11 mode.

llvm-svn: 154654

and add a test case.

llvm-svn: 154653

The less locks there are, the better. I removed the thread ID mutex and now just shared the m_thread_list's mutex to make sure we don't deadlock due to lock inversion.

llvm-svn: 154652

llvm-svn: 154650

the MC disassembler.

llvm-svn: 154649

Thanks to Nico Weber for the suggestion.

llvm-svn: 154648

library return value optimization for phi uses. Even when the
phi itself is not dominated, the specific use may be dominated.

llvm-svn: 154647

shadow of a block expression with non-trivial destructed cleanups,
we should flag that in the enclosing function, not in the block
that we're about to pop.

llvm-svn: 154646

obviously cannot know that this code is present, let alone used. So prevent the
internalize pass from internalizing those global values which code-gen may
insert.

llvm-svn: 154645

implementations, mark the atomics-related parts of the C++11 status page
as done. I've not marked 'Strong Compare and Exchange' done, since although
we implement supporting builtins, we don't yet produce different code for
the weak and strong forms.

llvm-svn: 154644

llvm-svn: 154643

optimizing autorelease calls on phi nodes with null operands.
This fixes rdar://11207070.

llvm-svn: 154642

as Eli noticed.

llvm-svn: 154641

__atomic_test_and_set, __atomic_clear, plus a pile of undocumented __GCC_*
predefined macros.

Implement library fallback for __atomic_is_lock_free and
__c11_atomic_is_lock_free, and implement __atomic_always_lock_free.

Contrary to their documentation, GCC's __atomic_fetch_add family don't
multiply the operand by sizeof(T) when operating on a pointer type.
libstdc++ relies on this quirk. Remove this handling for all but the
__c11_atomic_fetch_add and __c11_atomic_fetch_sub builtins.

Contrary to their documentation, __atomic_test_and_set and __atomic_clear
take a first argument of type 'volatile void *', not 'void *' or 'bool *',
and __atomic_is_lock_free and __atomic_always_lock_free have an argument
of type 'const volatile void *', not 'void *'.

With this change, libstdc++4.7's <atomic> passes libc++'s atomic test suite,
except for a couple of libstdc++ bugs and some cases where libc++'s test
suite tests for properties which implementations have latitude to vary.

llvm-svn: 154640

llvm-svn: 154638

Added more complete error checking for mutexes only for "Debug" builds where we always check if a mutex is valid prior to doing stuff with it. We also track when mutexes are initialized and destroyed and keep these in sets that can very subsequent pthread_mutex_XXX API calls.

llvm-svn: 154637

llvm-svn: 154636

Fix some test suite errors.  TestForwardDecl.py errors were due to bad Makefile.rules, while TestHiddenIvars.py errors due to features only available in modern objc runtime.

llvm-svn: 154635

the debug information individual Decls came from.

We've had a metadata infrastructure for a while,
which was intended to solve a problem we've since
dealt with in a different way.  (It was meant to
keep track of which definition of an Objective-C
class was the "true" definition, but we now find
it by searching the symbols for the class symbol.)
The metadata is attached to the ExternalASTSource,
which means it has a one-to-one correspondence with
AST contexts.

I've repurposed the metadata infrastructure to
hold the object file and DIE offset for the DWARF
information corresponding to a Decl.  There are
methods in ClangASTContext that get and set this
metadata, and the ClangASTImporter is capable of
tracking down the metadata for Decls that have been
copied out of the debug information into the
parser's AST context without using any additional
memory.

To see the metadata, you just have to enable the
expression log:
-
(lldb) log enable lldb expr
-
and watch the import messages.  The high 32 bits
of the metadata indicate the index of the object
file in its containing DWARFDebugMap; I have also
added a log which you can use to track that mapping:
-
(lldb) log enable dwarf map
-

This adds 64 bits per Decl, which in my testing
hasn't turned out to be very much (debugging Clang
produces around 6500 Decls in my tests).  To track
how much data is being consumed, I've also added a
global variable g_TotalSizeOfMetadata which tracks
the total number of Decls that have metadata in all
active AST contexts.

Right now this metadata is enormously useful for
tracking down bugs in the debug info parser.  In the
future I also want to use this information to provide
more intelligent error messages instead of printing
empty source lines wherever Clang refers to the
location where something is defined.

llvm-svn: 154634

Expose GetAddressClass() from both the SBAddress and SBInstruction so clients can tell the difference between ARM/Thumb opcodes when disassembling ARM.

llvm-svn: 154633

struct __rw_objc_super; no functionality change.

llvm-svn: 154632

directly instead of a user Instruction. This allows them to test
whether a def dominates a particular operand if the user instruction
is a PHI.

llvm-svn: 154631

llvm-svn: 154630

symbolic operands added when using the C disassembler API.

llvm-svn: 154628