This reverts commit 617330909f0c26a3f2ab8601a029b9bdca48aa61.

It broke the bots:

/home/clangbuild2/clang-ppc64-2/llvm.src/unittests/ADT/SmallVectorTest.cpp:150: PushPopTest
/home/clangbuild2/clang-ppc64-2/llvm.src/unittests/ADT/SmallVectorTest.cpp:118: Failure
Value of: v[i].getValue()
  Actual: 0
Expected: value
Which is: 2

llvm-svn: 178334

being power-of-two sized.

llvm-svn: 178332

likely the crash diagnostics generation will fail as well.
Part of rdar://13296693

llvm-svn: 178163

if crash diagnostics should be generated.  By default this is enabled.
Part of rdar://13296693

llvm-svn: 178161

if execution failed.  ExecuteAndWait returns -1 upon an execution failure, but
checking the return value isn't sufficient because the wait command may
return -1 as well.  This new parameter is to be used by the clang driver in a
subsequent commit.
Part of rdar://13362359

llvm-svn: 178087

llvm-svn: 177963

it's only really useful if you're going to crash anyways. Use it in the pretty stack trace
printer to kill the compiler if we hang while printing the stack trace.

llvm-svn: 177962

-time-ir-parsing flag

This breaks the layering of the Support library. We can't add an
implementation side to IRReader because it refers directly to entities
only accessible as part of the IR, AsmParser, and BitcodeReader
libraries. It can only be used in a context where all of those libraries
will be available.

We'll need to find some other way to get this functionality, and
hopefully solve the long-standing layering problem of IRReader.h...

llvm-svn: 177695

<rdar://problem/13477190> On Darwin, use DARWIN_USER_TEMP_DIR or DARWIN_USER_CACHE_DIR for the system temporary directory.

The DARWIN_USER_TEMP_DIR and DARWIN_USER_CACHE_DIR configuration
settings are more idiomatic for Darwin than the TMPDIR environment
variable.

llvm-svn: 177669

They are generally faster (at least not slower) than post-inc, post-dec.

llvm-svn: 177608

llvm-svn: 177543

llvm-svn: 177472

llvm-svn: 177175

Patch by Stephen Hines.

llvm-svn: 177101

Clients of MemoryBuffer::getOpenFile expect it not to take ownership of the file
descriptor passed in. So don't.

llvm-svn: 176995

This was tickled by a Clang diagnostic; Clang test case to follow.

llvm-svn: 176911

Patch by Paul Robinson.

llvm-svn: 176908

This gives us memory mapped file I/O on Windows.

llvm-svn: 176886

Remove an unused member variable from HelpPrinter. Move another member variable to be a local variable in the only method that uses it.

llvm-svn: 176778

Summary:
Statistics are still available in Release+Asserts (any +Asserts builds),
and stats can also be turned on with LLVM_ENABLE_STATS.

Move some of the FastISel stats that were moved under DEBUG()
back out of DEBUG(), since stats are disabled across the board now.

Many tests depend on grepping "-stats" output.  Move those into
a orig_dir/Stats/. so that they can be marked as unsupported
when building without statistics.

Differential Revision: http://llvm-reviews.chandlerc.com/D486

llvm-svn: 176733

The sys::fs::is_directory() check is unnecessary because, if the filename is
a directory, the function will fail anyway with the same error code returned.
Remove the check to avoid an unnecessary stat call.

Someone needs to review on windows and see if the check is necessary there or not.

llvm-svn: 176386

[PathV2] In llvm::sys::fs::unique_file, make sure it doesn't fall into an infinite loop by constantly trying
to create the parent path.

This can happen if the path is a relative filename and the current directory was removed.
Thanks to Daniel D. for the hint in fixing it.

llvm-svn: 176226

llvm-svn: 176130

to lib/DebugInfo, with dumping in llvm-dwarfdump. This patch adds
initial ability to parse and dump CFA instructions contained in
entries.

To keep it manageable, the patch omits some more advanced capabilities
(accounted in TODOs):

* Parsing of instructions with BLOCK arguments (expression lists)
* Dumping of actual instruction arguments (currently only names are
dumped). This is quite tricky since the dumper has to effectively
"interpret" the instructions.

llvm-svn: 175820

This implementation of NoneType/None does have some holes but I haven't
found one that doesn't - open to improvement.

llvm-svn: 175696

missed before but probably what was intended.

llvm-svn: 175687

llvm-svn: 175682

llvm-svn: 175651

llvm-svn: 175650

llvm-svn: 175648

loads. On FreeBSD, add PROT_READ page protection flag before flushing
cache.

llvm-svn: 175646

require call cpp file anyway, so we wouldn't gain anything by keeping them
inline.

llvm-svn: 175579

which uses it. This is not ideal, but it ought to at least restore the
behavior to what it was before.

llvm-svn: 175571

character devices.

llvm-svn: 175549

/dev/stdin as an input when stdin is connected to a tty, for example.

No test, because it's difficult to write a reasonably portable test
for this. /dev/stdin isn't a character device when stdin is redirected
from a file or connected to a pipe.

llvm-svn: 175542

Fix initialization-order bug in llvm::Support::TimeValue. TimeValue::now() is explicitly called during module initialization of lib/Support/Process.cpp. It reads the field of global object PosixZeroTime, which is not guaranteed to be initialized at this point. Found by AddressSanitizer with -fsanitize=init-order option.

llvm-svn: 175509

llvm-svn: 175264

llvm-svn: 175156

Add static cast to unsigned char whenever a character classification function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration.

llvm-svn: 175006

This change lets us bootstrap LLVM/Clang under ASan and MSan. It contains
fixes for 2 issues:

- X86JIT reads return address from stack, which MSan does not know is
  initialized.
- bugpoint tests run binaries with RLIMIT_AS. This does not work with certain
  Sanitizers.

We are no longer including config.h in Compiler.h with this change.

llvm-svn: 174306