llvm-svn: 78367

llvm-svn: 78366

llvm-svn: 78365

llvm-svn: 78364

llvm-svn: 78363

llvm-svn: 78362

It turns out most of the thumb2 instructions are not allowed to touch SP. The semantics of such instructions are unpredictable. We have just been lucky that tests have been passing.

This patch takes pain to ensure all the PEI lowering code does the right thing when lowering frame indices, insert code to manipulate stack pointers, etc. It's also custom lowering dynamic stack alloc into pseudo instructions so we can insert the right instructions at scheduling time.

This fixes PR4659 and PR4682.

llvm-svn: 78361

llvm-svn: 78360

Added legal stuff, fixed some formatting issues. Removed the graph generator stuff as it was only meant for debugging the solver.

llvm-svn: 78359

moment, but it's a fragile area.

llvm-svn: 78358

llvm-svn: 78357

Work in progress.

llvm-svn: 78355

New C++ PBQP solver. Currently about as fast (read _slow_) as the old C based solver, but I'll be working to improve that. The PBQP allocator has been updated to use the new solver.

llvm-svn: 78354

produced a CFG it wasn't prepared for.

llvm-svn: 78351

llvm-svn: 78350

with array accesses. In the process, refactor some common logic in
RetrieveElement() and RetrieveField() into RetrieveFieldOrElementCommon().

llvm-svn: 78349

TransformStmt, into the tree transformer.

llvm-svn: 78347

llvm-svn: 78346

llvm-svn: 78345

llvm-svn: 78344

rtti so we can properly test it.  Refactor code a little.  Still a
work in progress.

llvm-svn: 78343

involving reasoning about unions (which we don't handle yet).

llvm-svn: 78342

module as first argument.

llvm-svn: 78340

guard its report on GNUMode.

llvm-svn: 78338

If we need it one day, there is nothing wrong with putting it back in.

llvm-svn: 78337

buildbot.

llvm-svn: 78336

llvm-svn: 78335

llvm-svn: 78334

llvm-svn: 78333

Permit a class to friend its class members in C++ 98, as long as extensions
are enabled (and even when they aren't, only give an extwarn about it).

llvm-svn: 78332

llvm-svn: 78331

llvm-svn: 78330

llvm-svn: 78329

llvm-svn: 78327

testing mode it won't test much).

llvm-svn: 78325

don't recurs and crash.

llvm-svn: 78323

llvm-svn: 78322

Add parameter to pattern classes to enable an itinerary to be specified for instructions. For now just use the existing itineraries or NoItinerary.

llvm-svn: 78321

llvm-svn: 78320

creation activity into the target-specific subclasses of TLOF.
Before this, globals with explicit sections could be created by
the base class.

1. make getOrCreateSection protected, add a new getExplicitSectionGlobal
   pure virtual method to assign sections to globals with a specified
   section.
2. eliminate getSpecialCasedSectionGlobals, which is now PIC specific.
3. eliminate the getKindForNamedSection virtual method, which is
   now just a static method for ELF.
4. Add implementions of getExplicitSectionGlobal for ELF/PECOFF/Darwin/PIC16.
   They are now all detangled and understandable, woo! :)

llvm-svn: 78319