remove start/finishGVStub and the BufferState helper class from the
MachineCodeEmitter interface.  It has the side-effect of not setting the
indirect global writable and then executable on ARM, but that shouldn't be
necessary.

llvm-svn: 91464

llvm-svn: 91417

llvm-svn: 91410

llvm-svn: 91405

llvm-svn: 91381

llvm-svn: 91362

llvm-svn: 91274

llvm-svn: 91223

llvm-svn: 91220

llvm-svn: 91219

llvm-svn: 91158

This is used in some weird cases like general dynamic TLS model.
This fixes PR5723

llvm-svn: 91144

llvm-svn: 91104

vector_shuffle (scalar_to_vector (i32 load (ptr + 4))), undef, <0, 0, 0, 0>
=>
vector_shuffle (v4i32 load ptr), undef, <1, 1, 1, 1>

iff ptr is 16-byte aligned (or can be made into 16-byte aligned).

llvm-svn: 90984

llvm-svn: 90925

Move isConsecutiveLoad to SelectionDAG. It's not target dependent and it's primary used by selectdag passes.

llvm-svn: 90922

current form, it is too expensive in compile time.

llvm-svn: 90781

MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.

llvm-svn: 90634

Remove an unneeded include.

llvm-svn: 90625

Have hasLoad/StoreFrom/ToStackSlot return the relevant MachineMemOperand.

llvm-svn: 90608

llvm-svn: 90370

Patch by Howard Hinnant!

llvm-svn: 90365

No functionality change.

llvm-svn: 90336

llvm-svn: 90166

llvm-svn: 90165

for all the processors where I have tried it, and even when it might not help
performance, the cost is quite low.  The opportunities for duplicating
indirect branches are limited by other factors so code size does not change
much due to tail duplicating indirect branches aggressively.

llvm-svn: 90144

divide/remainder since these operations can trap by unroll them and adding undefs
for the resulting vector.

llvm-svn: 90108

it is definitely profitable to tail duplicate indirect branches for x86.
This is likely to be true to various degrees for all modern x86 processors.

llvm-svn: 89865

llvm-svn: 89850

way for each TargetJITInfo subclass to allocate its own stubs. This
means stubs aren't as exactly-sized anymore, but it lets us get rid of
TargetJITInfo::emitFunctionStubAtAddr(), which lets ARM and PPC
support the eager JIT, fixing http://llvm.org/PR4816.

* Rename the JITEmitter's stub creation functions to describe the kind
of stub they create. So far, all of them create lazy-compilation
stubs, but they sometimes get used when far-call stubs are needed.
Fixing http://llvm.org/PR5201 will involve fixing this.

llvm-svn: 89715

Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.

llvm-svn: 89711

It's probably better in the long run to replace the
indirect-GlobalVariable system. That'll be done after a subsequent
patch.

llvm-svn: 89708

llvm-svn: 89536

llvm-svn: 89509

and support for blockaddresses in x86-32 PIC mode.

llvm-svn: 89506

Thanks to Daniel Dunbar for fixing clang intrinsics:
  http://llvm.org/viewvc/llvm-project?view=rev&revision=89499

llvm-svn: 89500

broke the Clang testsuite.

llvm-svn: 89495

Also fixed the corresponding testcase, and the PALIGNR
  intrinsic (tested for correctness with llvm-gcc).

llvm-svn: 89491

llvm-svn: 89081

llvm-svn: 89076