llvm-svn: 109510

llvm-svn: 109509

llvm-svn: 109508

llvm-svn: 109506

llvm-svn: 109504

llvm-svn: 109503

llvm-svn: 109502

llvm-svn: 109500

Also fix some comments.

llvm-svn: 109499

Change it back again: destructors and constructors need to be run.

llvm-svn: 109498

This fixes the MC/COFF/basic-coff.ll test case.

llvm-svn: 109497

getMaxRegionExit returns the exit of the maximal refined region starting
at a specific basic block.

llvm-svn: 109496

are still on the list.  This might happen if a CallbackVH created some new value
handles for the old value when doing RAUW.  Barf if it occurs, since it is almost
certainly a mistake.

llvm-svn: 109495

llvm-svn: 109494

* contains(Loop), * getOutermostLoop()
* Improve getNameStr() to return a sensible name, if basic blocks are not named.

llvm-svn: 109490

subregister operands like this:

%reg1040:sub_32bit<def> = MOV32rm <fi#-2>, 1, %reg0, 0, %reg0, %reg1040<imp-def>; mem:LD4[FixedStack-2](align=8)

Make them return false when subreg operands are present. VirtRegRewriter is
making bad assumptions otherwise.

This fixes PR7713.

llvm-svn: 109489

with a too-big register class.

llvm-svn: 109488

protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481

that the values they refer to aren't being deleted underneath them.

Make sure these containters get cleared by clear(), which IndVarSimplify
and LSR both use before deleting instructions.

llvm-svn: 109478

llvm-svn: 109473

llvm-svn: 109472

llvm-svn: 109471

rewrite instructions for live range splitting.

Still work in progress.

llvm-svn: 109469

llvm-svn: 109468

llvm-svn: 109462

llvm-svn: 109458

llvm-svn: 109456

exception handling.  Also fix an extra underscore typo in one instance of
"__ARM_EABI__".  Radar 8236264.

llvm-svn: 109451

llvm-svn: 109450

The "excess register pressure" returned by HighRegPressure() is not accurate enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling.

llvm-svn: 109449

llvm-svn: 109448

llvm-svn: 109435

we are using AVX and no AVX version of the desired intruction is present,
this is better for incremental dev (without fallbacks it's easier to spot
what's missing). Not sure this is the best hack thought (we can also disable
all HasSSE* predicates by dinamically marking them 'false' if AVX is present)

llvm-svn: 109434

llvm-svn: 109433

llvm-svn: 109431

llvm-svn: 109430

Simplifying use_iterators by dereferencing
is not a good idea. The codebase does not depend
in this any more, and it may introduce hidden
runtime cost. If you get compile errors, please
dereference your iterator before passing to cast<>
(and friends).

Also: please consider caching the result of
operator* and reusing that instead of dereferencing
many times.

llvm-svn: 109425

llvm-svn: 109424

This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

llvm-svn: 109423

llvm-svn: 109422