Update and fix some comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79532 91177308-0d34-0410-b5e6-96231b3b80d8

Add myself to the blame list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79531 91177308-0d34-0410-b5e6-96231b3b80d8

Correct ARM v7-A architecture name spelling and add note about hard float.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79530 91177308-0d34-0410-b5e6-96231b3b80d8

Don't try to build .bc version of libprofile if LLVMGCC isn't available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79514 91177308-0d34-0410-b5e6-96231b3b80d8

Rename FirstExtendedValueType to INVALID_SIMPLE_VALUE_TYPE
as that's a bit more descriptive of what we're testing for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79513 91177308-0d34-0410-b5e6-96231b3b80d8

Remove cruft for installing runtime/ libraries directly into the LLVMGCCDIR;
that is totally bogus.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79512 91177308-0d34-0410-b5e6-96231b3b80d8

fix this back, thanks Eli

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79508 91177308-0d34-0410-b5e6-96231b3b80d8

Add some comments clarifying what appear to be the intent of various
error handling mechanisms. Please correct these if I've misunderstood
something.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79505 91177308-0d34-0410-b5e6-96231b3b80d8

Reword a few comments for AnalyzeBranch and InsertBranch, and fix
a few typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79503 91177308-0d34-0410-b5e6-96231b3b80d8

Check for shared landing pads when assigning call site values. Invokes which
share a landing pad should also use the same call site value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79501 91177308-0d34-0410-b5e6-96231b3b80d8

minor grammar tweak

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79498 91177308-0d34-0410-b5e6-96231b3b80d8

Add an extra line to conform with preferred style.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79495 91177308-0d34-0410-b5e6-96231b3b80d8

Modify an assert to avoid what looks like a GCC 4.2.4 signed-ness bug.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79494 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a few places to check if TargetData is available before using it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79493 91177308-0d34-0410-b5e6-96231b3b80d8

Add a fast path for setName("") on an unnamed value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79492 91177308-0d34-0410-b5e6-96231b3b80d8

Loosen up the regex for this test so that it doesn't implicitly
depend on TargetData information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79491 91177308-0d34-0410-b5e6-96231b3b80d8

Add targetdata strings to these tests, since SimplifyLibCalls uses
TargetData to find the pointer size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79490 91177308-0d34-0410-b5e6-96231b3b80d8

Update the release process some more. Lots of good details now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79488 91177308-0d34-0410-b5e6-96231b3b80d8

Remove an unnecessary include.  Now we won't have circular include
problems later on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79487 91177308-0d34-0410-b5e6-96231b3b80d8

AttrListPtr operations need to be atomic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79486 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in the over-index constant folding. When over-indexing an
array member of a struct, it's possible to land in an arbitrary position
inside that struct, such that attempting to find further getelementptr
indices will fail. In such cases, folding cannot be done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79485 91177308-0d34-0410-b5e6-96231b3b80d8

Handle 'a' modifier in X86 asms.  PR 4742.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79484 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed error in CPPBackend from a contextification API change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79483 91177308-0d34-0410-b5e6-96231b3b80d8

Switch IRBuilder to using Twine references for names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79482 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing forward declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79481 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79480 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79479 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79478 91177308-0d34-0410-b5e6-96231b3b80d8

Add a REQUIRES_FRAME_POINTER option to disable the frame pointer
elimination optimization on the LLVM code base.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79477 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79476 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79475 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79474 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79473 91177308-0d34-0410-b5e6-96231b3b80d8

Get rid of a helgrind warning.  If this is _actually_ a performance problem,
we can find a way to cache the answer that isn't racy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79472 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79469 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79468 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79467 91177308-0d34-0410-b5e6-96231b3b80d8

Build runtime libraries by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79465 91177308-0d34-0410-b5e6-96231b3b80d8

Add missing header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79463 91177308-0d34-0410-b5e6-96231b3b80d8

Add triple parsing support for TCE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79461 91177308-0d34-0410-b5e6-96231b3b80d8

Unbreak GetBufferSize() on uninitialized streams. This fixes a problem
that led to errs() getting made buffered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79458 91177308-0d34-0410-b5e6-96231b3b80d8

Tweak svn:ignore

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79457 91177308-0d34-0410-b5e6-96231b3b80d8

Switch to SmallString::str from SmallString::c_str, and remove
SmallString::c_str.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79456 91177308-0d34-0410-b5e6-96231b3b80d8

Add min and max tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79454 91177308-0d34-0410-b5e6-96231b3b80d8

Add SmallString::str (which returns a StringRef); this is more efficient than
c_str().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79453 91177308-0d34-0410-b5e6-96231b3b80d8

Remove SmallString::append_*int* unit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79451 91177308-0d34-0410-b5e6-96231b3b80d8

Remove SmallString::append_*int* methods; how many copies of int -> str
conversion code do we really need?
 - S.append_uint(N) can be replaced with 'raw_svector_ostream(S) << N' which is
   somewhat slower due to the extra set up cost, but still plenty fast
   (especially if the svector set up cost can be amortized).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79450 91177308-0d34-0410-b5e6-96231b3b80d8

Change ValueSymbolTable to use raw_svector_ostream for string concatenation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79449 91177308-0d34-0410-b5e6-96231b3b80d8

Make this test platform neutral.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79447 91177308-0d34-0410-b5e6-96231b3b80d8

Change raw_svector_ostream to reserve the input buffer if necessary, Ted was
right.
 - This class turns out to be much more convenient to use if we do this; clients
   can make sure the buffer is always big enough if they care (since our current
   idiom tends to be to use a SmallString<256> for the input to this we should
   generally be avoiding an unnecessary malloc).

Also, add a convenience raw_svector_ostream::str method which flushes the buffer
and returns a StringRef for the vector contents.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79446 91177308-0d34-0410-b5e6-96231b3b80d8

Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79445 91177308-0d34-0410-b5e6-96231b3b80d8

Remove temporary testing code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79443 91177308-0d34-0410-b5e6-96231b3b80d8

Make SROA and PredicateSimplifier cope if TargetData is not
available. This is very conservative for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79442 91177308-0d34-0410-b5e6-96231b3b80d8

Use hasDefinitiveInitializer() instead of testing the same thing
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79441 91177308-0d34-0410-b5e6-96231b3b80d8

Canonicalize indices in a constantexpr GEP. If Indices exceed the
static extents of the static array type, it causes GlobalOpt and
other passes to be more conservative. This canonicalization also
allows the constant folder to add "inbounds" to GEPs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79440 91177308-0d34-0410-b5e6-96231b3b80d8

Add an x86 peep that narrows TEST instructions to forms that use
a smaller encoding. These kinds of patterns are very frequent in
sqlite3, for example.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79439 91177308-0d34-0410-b5e6-96231b3b80d8

Switch Twine::str() to use toVector(), which is now efficient.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79437 91177308-0d34-0410-b5e6-96231b3b80d8

Update Cortex-A8 instruction itineraries for integer instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79436 91177308-0d34-0410-b5e6-96231b3b80d8

Add a first stab at describing LLVMContext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79435 91177308-0d34-0410-b5e6-96231b3b80d8

Switch raw_svector_ostream to use the vector as the ostream buffer.
 - This avoids unnecessary malloc/free overhead in the common case, and
   unnecessary copying from the ostream buffer into the output vector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79434 91177308-0d34-0410-b5e6-96231b3b80d8

Add SmallVector::{capacity,set_size}.
 - These allow clients to make use of the extra elements in the vector which
   have already been allocated, without requiring them to be value initialized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79433 91177308-0d34-0410-b5e6-96231b3b80d8

BasicBlock::getContext can no longer return a NULL so update the doc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79432 91177308-0d34-0410-b5e6-96231b3b80d8

Update the ocaml docs to work with LLVMContext.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79431 91177308-0d34-0410-b5e6-96231b3b80d8

Convert the rest of the ocaml types and functions to use context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79430 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply my less-lock-contention-in-leak-detector patch, now with new files
actually added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79429 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for Neon VEXT (vector extract) shuffles.
This is derived from a patch by Anton Korzh.  I modified it to recognize
the VEXT shuffles during legalization and lower them to a target-specific
DAG node.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79428 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a commento.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79427 91177308-0d34-0410-b5e6-96231b3b80d8

Speculatively revert r79375, which may be breaking bootstrap, although in a
rather obscure way (the other candidate is r79377).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79426 91177308-0d34-0410-b5e6-96231b3b80d8

Use the schedule itinerary operand use/def cycle information to adjust dependence edge latency for post-RA scheduling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79425 91177308-0d34-0410-b5e6-96231b3b80d8

Test commit access with a first act of vanity.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79424 91177308-0d34-0410-b5e6-96231b3b80d8

Fix cmake build on non-x86 targets.  Patch by
Xerxes Rånby.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79419 91177308-0d34-0410-b5e6-96231b3b80d8

Proper MSVC build fix (and remove my hack again). Patch by Yonggang Luo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79418 91177308-0d34-0410-b5e6-96231b3b80d8

Add a hack to unbreak MSVC builds. str(n)casecmp are POSIX functions and aren't available on windows (mingw defines them though).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79417 91177308-0d34-0410-b5e6-96231b3b80d8

PR4737: Fix a nasty bug in load narrowing with non-power-of-two types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79415 91177308-0d34-0410-b5e6-96231b3b80d8

Add the ocaml binding to LLVMBuildAggregateRet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79414 91177308-0d34-0410-b5e6-96231b3b80d8

Expose some extra functions to llvm-c

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79413 91177308-0d34-0410-b5e6-96231b3b80d8

Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also
delete a newed pointer, and improve readability a little bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79411 91177308-0d34-0410-b5e6-96231b3b80d8

Allow passing around LLVMContext in ocaml.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79410 91177308-0d34-0410-b5e6-96231b3b80d8

ExuberantAsm is no more.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79409 91177308-0d34-0410-b5e6-96231b3b80d8

fix asmstreaming of 2/4 byte elements with pow-2 alignments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79408 91177308-0d34-0410-b5e6-96231b3b80d8

Be more careful when modifying PHI nodes. Patch by Andre Tavares.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79407 91177308-0d34-0410-b5e6-96231b3b80d8

switch asmprinter to emit alignments through OutStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79406 91177308-0d34-0410-b5e6-96231b3b80d8

eliminate AsmPrinter::SwitchToSection and just have clients
talk to the MCStreamer directly instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79405 91177308-0d34-0410-b5e6-96231b3b80d8

Broke line before break.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79404 91177308-0d34-0410-b5e6-96231b3b80d8

Make a SmallVector size more reasonable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79403 91177308-0d34-0410-b5e6-96231b3b80d8

Fix gcc-4.4/fedora 11 by adding a sentinel value to SimpleValueType.

gcc-4.4 was optimizing away comparisons against SimpleValueType when
it was compared to a value larger than the largest value in the enum.
This patch works around it by adding one extra item to the enum so
that these tests will now be valid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79401 91177308-0d34-0410-b5e6-96231b3b80d8

Added an option to have the PBQP allocator attempt coalescing during allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79397 91177308-0d34-0410-b5e6-96231b3b80d8

Revert my last patch temporarily.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79388 91177308-0d34-0410-b5e6-96231b3b80d8

Privatize part of the leak detector mechanism, which turned out to be heavily contended
when trying to run opt in parallel.  This lets parallel opt crunch 403.gcc in about a third
of the time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79387 91177308-0d34-0410-b5e6-96231b3b80d8

raw_ostream: Simplify write(unsigned char) to match write(const char*, unsigned).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79386 91177308-0d34-0410-b5e6-96231b3b80d8

raw_ostream: Remove pointless redefinitions of tell().
 - The base class implementation is correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79385 91177308-0d34-0410-b5e6-96231b3b80d8

Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
before performing optimizations based on constant string values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8

Be tidy and use a break to exit from a switch block rather than
just falling through the end.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79383 91177308-0d34-0410-b5e6-96231b3b80d8

raw_ostream: Add the capability for subclasses to manually install an external
buffer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79382 91177308-0d34-0410-b5e6-96231b3b80d8

Legalize the shift amount operand of SRL_PARTS, SHL_PARTS, and
SRA_PARTS, as is done for SRL, SHL, and SRA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79380 91177308-0d34-0410-b5e6-96231b3b80d8

raw_ostream: Reduce FormattedStream's reliance on raw_ostream's implementation.
 - Kill off begin(), end(), and iterator. It isn't clear what these
   mean. Instead provide getBufferStart(), which can be used with
   GetNumBytesInBuffer to the same effect.

 - Update ComputeColumn to take arguments for the buffer to scan, this
   simplifies the implementation of write_impl substantially.

 - This should also fix possible problems with the scanning pointer pointing
   outside of the current raw_ostream buffer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79379 91177308-0d34-0410-b5e6-96231b3b80d8

Changes DOUT references in the PBQP allocator to use DEBUG(errs() ...)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79378 91177308-0d34-0410-b5e6-96231b3b80d8

Implement sse4.2 string/text processing instructions:
Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79377 91177308-0d34-0410-b5e6-96231b3b80d8

First steps to document new release plan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79376 91177308-0d34-0410-b5e6-96231b3b80d8

Speed up raw_ostream::<<(unsigned long long) for 32-bit systems by doing most
div/mods in 32-bits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79375 91177308-0d34-0410-b5e6-96231b3b80d8