Live range splitting can create a number of small live ranges containing only a
single real use. Spill these small live ranges along with the large range they
are connected to with copies. This enables memory operand folding and maximizes
the spill to fill distance.

Work in progress with known bugs.

llvm-svn: 127529

llvm-svn: 127528

disassembler's disassembler map.

llvm-svn: 127527

This checker was created by Jim Goodnow II, and I migrated it to the
new Checker interface (recent changes by Argiris).

llvm-svn: 127525

llvm-svn: 127524

llvm-svn: 127523

There are too many compatibility problems with using mixed types in
std::upper_bound, and I don't want to spend 110 lines of boilerplate setting up
a call to a 10-line function. Binary search is not /that/ hard to implement
correctly.

I tried terminating the binary search with a linear search, but that actually
made the algorithm slower against my expectation. Most live intervals have less
than 4 segments. The early test against endIndex() does pay, and this version is
25% faster than plain std::upper_bound().

llvm-svn: 127522

should be resolvable, from Faisal Vali!

llvm-svn: 127521

Add a RUN line to this test.

llvm-svn: 127520

This uses pexpect module to spawn a 'lldb' program and uses pseudo-TTY to talk to
the child application.

The test cases test setting breakpoints, adding a stop-hook with line range, and
verifies that when the inferior stops, the stop-hook will fire off when it is
within range and will not fire off when it is out of range.

llvm-svn: 127519

Go ahead and add them on when we might want to use them and let
later passes remove them.

Fixes rdar://9118569

llvm-svn: 127518

llvm-svn: 127517

llvm-svn: 127516

actual instruction as the non-Darwin defs, but have different call-clobber
semantics and so need separate patterns. They don't need to duplicate the
encoding information, however.

llvm-svn: 127515

enumeration type to another in C, classify enumeration constants as if
they had the type of their enclosing enumeration. Fixes
<rdar://problem/9116337>.

llvm-svn: 127514

functionality intended.

llvm-svn: 127513

unless we already know that it has a definition. Fixes
PR9449/<rdar://problem/9115785>.

llvm-svn: 127512

llvm-svn: 127511

llvm-svn: 127510

llvm-svn: 127509

llvm-svn: 127508

headers, which use C++0x generalized initializer lists. Per PR7069, it
appears that the only use is as the return type of a function, so this
commit enables this extension just in that narrow case. If it's enough
for libstdc++ 4.5, or if it can be trivially extended to work with
libstdc++ 4.5, we'll keep it. Otherwise, or if this breaks anything,
we'll revert and wait for the real feature.

llvm-svn: 127507

llvm-svn: 127506

llvm-svn: 127505

effect that we get proper instruction printing using the "pop" mnemonic for it.

llvm-svn: 127502

<rdar://problem/9073695> std::uncaught_exception() becomes true before evaluating the throw-expression rather than after

llvm-svn: 127499

Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

llvm-svn: 127498

protector insertion not working correctly with unreachable code. Since that
revision was rolled out, this test doesn't actual fail before this fix.

llvm-svn: 127497

llvm-svn: 127496

llvm-svn: 127495

llvm-svn: 127494

llvm-svn: 127493

llvm-svn: 127491

as for VDUP32d and VDUP32q, respectively.

llvm-svn: 127489

llvm-svn: 127488

and VDUPLN32d, respectively.

llvm-svn: 127486

as for VREV64d32 and VREV64q32, respectively.

llvm-svn: 127485

Add pexpect-2.4 (a pure Python module for controlling and automating other programs) to the test directory.

http://pypi.python.org/pypi/pexpect/

llvm-svn: 127484

llvm-svn: 127483

llvm-svn: 127482