When assigned ranges are evicted, they are put in the RS_Evicted stage and are
not allowed to evict anything else. That prevents looping automatically.

When evicting ranges just to get a cheaper register, use only spill weights to
find the possible candidates. Avoid breaking hints for this purpose, it is not
worth it.

Start implementing more complex eviction heuristics, guarded by the temporary
-complex-eviction flag. The initial version permits a heavier range to be
evicted if it doesn't have any uses where the evicting range is live. This makes
it a good candidate for live ranfge splitting.

llvm-svn: 132358

llvm-svn: 132357

llvm.memcpy.* has two distinct associated address spaces; the source address space, and the destination address space.  Fix up the interface on MemIntrinsic and MemTransferInst to make this clear, and fix InstructionDereferencesPointer in LazyValueInfo.cpp to use the interface properly.

llvm-svn: 132356

llvm-svn: 132355

value fails to evaluate.

llvm-svn: 132354

llvm-svn: 132353

from David Meyer's patch!

llvm-svn: 132352

llvm-svn: 132351

expression. Fixes bug raised by hhinnant to cfe-dev

llvm-svn: 132350

llvm-svn: 132349

sub with a non-constant.  Fix comments, enlarge test case.
rdar://problem/6501862

llvm-svn: 132348

llvm-svn: 132345

llvm-svn: 132344

llvm-svn: 132342

llvm-svn: 132341

llvm-svn: 132340

llvm-svn: 132338

llvm-svn: 132337

llvm-svn: 132336

llvm-svn: 132335

llvm-svn: 132334

Recreate the DeclContext before adding the implicit friend forward declaration. This should fix the asserting buildbot.

llvm-svn: 132333

For compatibility with MSVC, a friend declaration also act as a forward declaration if the tag name is not already declared. The tag name is declared in the next outermost non record scope.
Example:

class A {
  friend class B;
  B* b;
};
B* global_b;

llvm-svn: 132332

vtables! Fixes PR10020

This also allows us to revert the part of r130023 which added a big loop around
the template instantiation.

llvm-svn: 132331

llvm-svn: 132330

llvm-svn: 132329

  return f() || -1;

where the user meant to write '|'.

This bootstraps without any additional warnings.

Patch by Richard Trieu.

llvm-svn: 132327

llvm-svn: 132326

Introduce PackedVector, useful for storing a vector of values using a specific number of bits for each
value. Both signed and unsigned types can be used, e.g

   PackedVector<signed, 2> vec;

will create a vector accepting values -2, -1, 0, 1. Any other value will hit an assertion.

llvm-svn: 132325

must be encoded decremented by one. Only add encoding tests for ssat16
because ssat can't be parsed yet.

llvm-svn: 132324

nand), atomic.swap and atomic.cmp.swap, all in i8, i16 and i32 versions.
The intrinsics are implemented by creating pseudo-instructions, which are
then expanded in the method MipsTargetLowering::EmitInstrWithCustomInserter.

Patch by Sasa Stankovic.

llvm-svn: 132323

Dynamic, Initial Exec and Local Exec TLS models.

Patch by Sasa Stankovic

llvm-svn: 132322

llvm-svn: 132321

llvm-svn: 132320

llvm-svn: 132319

directives.

Fixes PR9826.

llvm-svn: 132317

rdar://problem/6501862

llvm-svn: 132316

llvm-svn: 132315

same dwarf number. This will be used for creating a dwarf number to register
mapping.

The only case that needs this so far is the XMM/YMM registers that unfortunately
do have the same numbers.

llvm-svn: 132314

subregisters of the 64 bit ones.

llvm-svn: 132313