turned on and off separate from the platform if you're on darwin.

llvm-svn: 162487

we're using the darwin old gdb compat mode for emitting dwarf.

llvm-svn: 162486

No test case, this is a generalization of r160260.

llvm-svn: 162485

Previously we put a WatchpointSentry object within StopInfo.cpp to disable-and-then-enable the watchpoint itself
while we are performing the actions associated with the triggered watchpoint, which can cause the user-initiated
watchpoint disabling action to be negated.

Add a test case to verify that a watchpoint can be disabled during the callbacks.

llvm-svn: 162483

A first version of a bunch of classes that wrap commonly used Python objects in a ref-counting and type-safe C++ API

llvm-svn: 162481

by CodeGen.

In the long-term, much of the codegen logic will be shared between the GNU-style
and MS-style inline assembly, but for now I'm replicating this logic to avoid
regressions with the GNU-style.

llvm-svn: 162478

These were nops for quite a while and only lead to confusion. ASTMultiPtr
now behaves like a proper dumb array reference.

llvm-svn: 162475

Added a hollowed out version of an OperatingSystem plugin that will use a class in python to get thread information for threads stored in memory.

llvm-svn: 162472

lookup table as needing to be built.

This is required for LLDB, which provides the
contents of many DeclContexts through a custom
ExternalASTSource.

llvm-svn: 162471

<rdar://problem/12161861>

llvm-svn: 162470

"castAs<...>->doSomething()".  The analyzer was flagging these
as potential null dereferences, which is technically true.  The
invariants appear to be that these casts should never fail, so
let's use castAs<> instead and avoid a runtime check.

llvm-svn: 162468

llvm-svn: 162467

Make a test scenario stronger, since, by default, the setting interpreter.expand-regex-aliases is false.

llvm-svn: 162465

statement starts with an identifier for which name lookup will fail either way,
look at later tokens to disambiguate in order to improve error recovery.

llvm-svn: 162464

ms-style inline asms.

llvm-svn: 162463

llvm-svn: 162462

Keep track of the set/unset state of these bits along with their
true/false values, but treat '?' as '0' for now.

llvm-svn: 162461

Currently, TableGen just guesses instruction properties when it can't
infer them form patterns.

This adds a guessInstructionProperties flag to the instruction set
definition that will be used to disable guessing. The flag is intended
as a migration aid. It will be removed again when no more targets need
their properties guessed.

llvm-svn: 162460

These intrinsics don't have unmodeled side effects, they are just
stores.

llvm-svn: 162459

This should fix a -Wdocumentation warning.

llvm-svn: 162458

useful if you don't see the second stack trace

llvm-svn: 162456

llvm-svn: 162454

A CXXDefaultArgExpr wraps an Expr owned by a ParmVarDecl belonging to the
called function. In general, ExprEngine and Environment ought to treat this
like a ParenExpr or other transparent wrapper expression, with the inside
expression evaluated first.

However, if we call the same function twice, we'd produce a CFG that contains
the same wrapped expression twice, and we're not set up to handle that. I've
added a FIXME to the CFG builder to come back to that, but meanwhile we can
at least handle expressions that don't need to be explicitly evaluated:
literals. This probably handles many common uses of default parameters:
true/false, null, etc.

Part of PR13385 / <rdar://problem/12156507>

llvm-svn: 162453

llvm-svn: 162452

Deallocate: drain blocks to central cache if cached too much (instead of never drain).
Allocate: batch allocate fixed amount of blocks (instead of all blocks).
This significantly reduces memory consumption of large heavy-multithreaded programs.

llvm-svn: 162447

llvm-svn: 162446

a gcc warning.

llvm-svn: 162444

llvm-svn: 162443

[Sanitizer] Add external symbolizer binary. Next steps - include it in CMake build (produce 32-bit and 64-bit version of it, make sure we can compile LLVM sources with our own flags) and add tests for it.

llvm-svn: 162442

Patch by Niels Grewe!

llvm-svn: 162441

llvm-svn: 162440

(kudos to Anna Zaks for a good example).
This simplifies the code much and lets us not implement internal parts of libdispatch.

All ASan tests from t32 and t64 should pass with the dylib runtime now.

llvm-svn: 162439

llvm-svn: 162438

[Sanitizer] Switch the symbolization strategy that would be used by sanitizer tools family: as compiling in-process symbolizer into runtime involves certain difficulties, we may instead launch an external symbolizer program (fork + execl) in a subprocess and communicate with it via pipe.

llvm-svn: 162437

with older gdbs on darwin.

rdar://10975874

llvm-svn: 162436

llvm-svn: 162435

rdar://10393214

llvm-svn: 162434

llvm-svn: 162433

llvm-svn: 162432

change in r162404.

llvm-svn: 162431