llvm-svn: 118272

sequence of loads and stores was being generated to perform the
copy on the x86 targets if the parameter was less than 4 byte
aligned, causing llc to use up vast amounts of memory and time.
Use a "rep movs" form instead.  PR7170.

llvm-svn: 118260

llvm-svn: 118257

llvm-svn: 118254

they do :-(

llvm-svn: 118250

llvm-svn: 118249

Introduce DIBuilder. It is intended to be a front-end friendly interface to emit debuggging information entries in LLVM IR.

To create debugging information for a pointer, using DIBUilder front-end just needs
	DBuilder.CreatePointerType(Ty, Size);
instead of
	DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type,
                                       TheCU, "", getOrCreateMainFile(),
                                       0, Size, 0, 0, 0, OCTy);

llvm-svn: 118248

llvm-svn: 118247

and as such can be represented by an MVT - the more complicated
EVT is not needed.  Use MVT for ValVT everywhere.

llvm-svn: 118245

Fix @llvm.prefetch isel. Selecting between pld / pldw using the first immediate rw. There is currently no intrinsic that matches to pli.

llvm-svn: 118237

Right now the code is partitioned but the behavior is the same.
This should be improved in the near future.   This removes some
uses of TheOperandList.

llvm-svn: 118232

it doesn't do any lexical stuff anymore.

llvm-svn: 118230

llvm-svn: 118228

on the incoming operand list.  This also makes the code simpler.

llvm-svn: 118225

 - Primarily useful for running some code with a specified stack size, when
   pthreads are available.

llvm-svn: 118222

tweaking when we start using it for object file emission or JIT, but it's a
start.

llvm-svn: 118221

llvm-svn: 118220

llvm-svn: 118219

now matchables contain an explicit list of how to populate each
operand in the result instruction instead of having them somehow
magically be correlated to the input inst.

llvm-svn: 118217

This way, InlineSpiller does the same amount of splitting as the standard
spiller. Splitting should really be guided by the register allocator, and
doesn't belong in the spiller at all.

llvm-svn: 118216

CodeEmitter.

llvm-svn: 118209

llvm-svn: 118207

Fixups list for the instruction so the operand encoders can add to it as
needed.

llvm-svn: 118206

This is both the conceptually correct place for it, as well as allowing it to be more aggressive.

llvm-svn: 118204

We could be more aggressive about making this work for a larger range of constants,
but this seems like a good start.

llvm-svn: 118201

llvm-svn: 118199

just do it earlier too.

llvm-svn: 118195

splitting needs them.

llvm-svn: 118194

llvm-svn: 118193

llvm-svn: 118192

llvm-svn: 118190

llvm-svn: 118187

all of the different element sizes are pseudo instructions that map down to vext.8 underneath, with
the immediate shifted left to reflect the increased element size.

llvm-svn: 118183

on non-X86 hosts.  Hopefully fixes ppc-host buildbot.

llvm-svn: 118182

llvm-svn: 118176

For NEON we had been assuming this was always an immediate constant.

llvm-svn: 118175

Makes it more clear that it is just a path manipulation function.

llvm-svn: 118174

llvm-svn: 118173

the code more self-documenting.

llvm-svn: 118171

with a SimpleValueType, while an EVT supports equality and
inequality comparisons with SimpleValueType.

llvm-svn: 118169