Add basic zlib support to LLVM. This would allow to use compression/uncompression in selected LLVM tools.

llvm-svn: 180083

Summary:
This is http://llvm.org/PR15802.  Backslashes preceding double quotes in
arguments must be escaped.  The interesting bit is that all other
backslashes should *not* be escaped, because the un-escaping logic is
only triggered by the presence of a double quote character.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D705

llvm-svn: 180035

llvm-svn: 179995

I will remove the isBigEndianHost function once I update clang.

The ifdef logic is designed to
* not use configure/cmake to avoid breaking -arch i686 -arch ppc.
* default to little endian
* be as small as possible

It looks like sys/endian.h is the preferred header on most modern BSD systems,
but it is better to change this in a followup patch as machine/endian.h is
available on FreeBSD, OpenBSD, NetBSD and OS X.

llvm-svn: 179527

This will be used in clang to decide if it should create an @file or not. It
will be tested on the clang side.

Patch by Nathan Froyd.

llvm-svn: 179285

It's possible for the lock file to disappear and the owning process to
return before we're able to see the generated file. Spin for a little
while to see if it shows up before failing. 

llvm-svn: 178909

If the directory that will contain the unique file doesn't exist when
we tried to create the file, but another process creates it before we
get a chance to try creating it, we would bail out rather than try to
create the unique file.

llvm-svn: 178908

llvm-svn: 178905

Summary:
Sets a report hook that emulates pressing "retry" in the "abort, retry,
ignore" dialog box that _CrtDbgReport normally raises.  There are many
other ways to disable assertion reports, but this was the only way I
could find that still calls our exception handler.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D625

llvm-svn: 178880

llvm-svn: 178674

Testing for Visual Studio 2010 SP1 or greater before calling the _xgetbv intrinsic.  This also fixes a minor code formatting issue.

llvm-svn: 178666

when getting the host processor information.  It emits a .byte sequence on GNUC compilers to work around lack of xgetbv support with older assemblers, and resolves a comment typo found in the previous patch.

llvm-svn: 178636

Rolling back the AVX support patch due to breaking a gcc 4.6 build bot that doesn't understand the xgetbv instruction for some reason.  Will revisit when time permits.

llvm-svn: 178614

llvm-svn: 178604

when getting the host processor information.

llvm-svn: 178598

llvm-svn: 178420

This time tested on both OSX and Linux.

llvm-svn: 178377

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