we can find a way to cache the answer that isn't racy.

llvm-svn: 79472

llvm-svn: 79461

SmallString::c_str.

llvm-svn: 79456

llvm-svn: 79449

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.

llvm-svn: 79446

llvm-svn: 79443

available. This is very conservative for now.

llvm-svn: 79442

by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.

llvm-svn: 79441

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.

llvm-svn: 79440

a smaller encoding. These kinds of patterns are very frequent in
sqlite3, for example.

llvm-svn: 79439

llvm-svn: 79437

llvm-svn: 79436

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

llvm-svn: 79434

actually added.

llvm-svn: 79429

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.

llvm-svn: 79428

rather obscure way (the other candidate is r79377).

llvm-svn: 79426

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

llvm-svn: 79425

llvm-svn: 79415

delete a newed pointer, and improve readability a little bit.

llvm-svn: 79411

llvm-svn: 79408

llvm-svn: 79407

llvm-svn: 79406

talk to the MCStreamer directly instead.

llvm-svn: 79405

llvm-svn: 79404

llvm-svn: 79403

llvm-svn: 79397

llvm-svn: 79388

when trying to run opt in parallel.  This lets parallel opt crunch 403.gcc in about a third
of the time.

llvm-svn: 79387

llvm-svn: 79386

 - The base class implementation is correct.

llvm-svn: 79385

before performing optimizations based on constant string values.

llvm-svn: 79384

just falling through the end.

llvm-svn: 79383

buffer.

llvm-svn: 79382

SRA_PARTS, as is done for SRL, SHL, and SRA.

llvm-svn: 79380

 - 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.

llvm-svn: 79379

llvm-svn: 79378

Add patterns and instruction encoding information.
Add custom lowering to deal with hardwired return register of
uncertain type (xmm0).

llvm-svn: 79377

div/mods in 32-bits.

llvm-svn: 79375

- Drop the Candidates argument and fix all callers. Now that RegScavenger
  tracks available registers accurately, there is no need to restict the
  search.
- Make sure that no aliases of the found register are in use. This was a potential bug.

llvm-svn: 79369

llvm-svn: 79368