elimination.  Before a DBG_VALUE could affect codegen.
The solution here is imperfect and not final.

llvm-svn: 96318

llvm-gcc but has been replaced with pad argument which don't need any
special backend support.

llvm-svn: 96312

as it also peeks at which registers are being used by other uses. This
makes LSR less sensitive to use-list order.

llvm-svn: 96308

at older buildbot messages, I see the failure predates
this patch.

llvm-svn: 96307

finished.

llvm-svn: 96304

but it's harder to believe it's the other candidate,
so reverting.  Temporarily I hope.

llvm-svn: 96303

strict about the requirements.

llvm-svn: 96301

We could almost use a multiclass for the signed/unsigned instructions, but
there are only 6 of them so I guess it's not worth it.

llvm-svn: 96297

llvm-svn: 96295

llvm-svn: 96294

llvm-svn: 96292

llvm-svn: 96290

llvm-svn: 96289

llvm-svn: 96288

It turns out that we emitted completely wrong common EH frame since the early beginning! The "z" CIE augmentation mark indicates that there is an extra word containing the size of augmentation section. However, even for frames w/o any augmentation data we emitted size uleb! (this is the case of "unwinding through C code"). Thus frame moves information was emitterd completely wrong.

llvm-svn: 96287

llvm-svn: 96286

Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there

llvm-svn: 96285

'i1' type.

llvm-svn: 96282

A virtual register can be used before it is defined in the same MBB if the MBB
is part of a loop. Teach the implicit-def pass about this case.

llvm-svn: 96279

Module (we were called with verifyFunction and an unowned Function) we can't
rely on Mod->getContext().

llvm-svn: 96275

fixes a crash using FPM on a Function that isn't owned by a Module.

llvm-svn: 96273

functions not embedded within modules.

llvm-svn: 96272

llvm-svn: 96269

and the testcase needs improvement.

llvm-svn: 96265

called by jump threading.

llvm-svn: 96263

IsLegalToFold and IsProfitableToFold. The generic version of the later simply checks whether the folding candidate has a single use.

This allows the target isel routines more flexibility in deciding whether folding makes sense. The specific case we are interested in is folding constant pool loads with multiple uses.

llvm-svn: 96255

Add support for emitting non-temporal stores for DAGs marked
non-temporal.

llvm-svn: 96241

Add non-temporal flags and remove an assumption of default arguments.

llvm-svn: 96240

Remove an assumption of default arguments.  This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96239

change to SelectionDAG build APIs.

llvm-svn: 96238

change to SelectionDAG build APIs.

llvm-svn: 96237

change to SelectionDAG build APIs.

llvm-svn: 96236

change to SelectionDAG build APIs.

llvm-svn: 96235

change to SelectionDAG build APIs.

llvm-svn: 96234

change to SelectionDAG build APIs.

llvm-svn: 96233

change to SelectionDAG build APIs.

llvm-svn: 96232

change to SelectionDAG build APIs.

llvm-svn: 96231

change to SelectionDAG build APIs.

llvm-svn: 96230

change to SelectionDAG build APIs.

llvm-svn: 96229

Remove an assumption of default arguments.  This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96228