llvm-svn: 42439

add more such code for DIEDwarfLabel::SizeOf and DIEObjectLabel::SizeOf.

llvm-svn: 42435

targets with 64-bit addresses.

llvm-svn: 42434

The only generated code difference is that now we call memcpy when
the size of the array is unknown. This matches GCC behavior and is
better since the run time value can be arbitrarily large.

llvm-svn: 42433

llvm-svn: 42429

llvm-svn: 42428

llvm-svn: 42427

llvm-svn: 42426

llvm-svn: 42423

Fixes a SWB crash.

llvm-svn: 42422

Convert DFSPass into a templated friend function, in preparation for making it common to DomTree and PostDomTree.

llvm-svn: 42420

other than PPC64. Instead of fixing it, just remove it and fix all the
places that use it to use TargetData::getPointerSize() instead, as there
aren't very many. Most of the references were in DwarfWriter.cpp.

llvm-svn: 42419

It includes:

 - location and of each safe point in machine code (identified by a
   label)
 - location of each root within the stack frame (identified by an
   offset), including the metadata tag provided to llvm.gcroot in
   the user program
 - size of the stack frame (for collectors which want to cheat on
   stack crawling :)
 - and eventually will include liveness

It is to be populated by back-ends during code-generation.

CollectorModuleMetadata aggregates this information across the
entire module.

llvm-svn: 42418

llvm-svn: 42417

registry for dynamically-loaded garbage collection compiler plugins.

llvm-svn: 42415

capabilities. This is a major rewrite and is easier to read en toto
rather than patchwise.

llvm-svn: 42414

llvm-svn: 42413

llvm-svn: 42410

llvm-svn: 42407

llvm-svn: 42406

llvm-svn: 42405

llvm-svn: 42398

llvm-svn: 42397

llvm-svn: 42394

llvm-svn: 42393

llvm-svn: 42392

llvm-svn: 42391

llvm-svn: 42389

llvm-svn: 42388

llvm-svn: 42387

llvm-svn: 42385

llvm-svn: 42384

destruction of compiler-created ones.

llvm-svn: 42383

llvm-svn: 42382

llvm-svn: 42377

- Added ability to emit cross class register copies to the BBRU scheduler.
- More aggressive backtracking.

llvm-svn: 42375

llvm-svn: 42374

llvm-svn: 42373

- Added MRegisterInfo::getCrossCopyRegClass() hook. For register classes where reg to reg copies are not possible, this returns another register class which registers in the specified register class can be copied to (and copy back from).
- X86 copyRegToReg() now supports copying between EFLAGS and GR32 / GR64 registers.

llvm-svn: 42372

Some assemblers do not recognize aliases pushfd, pushfq, popfd, and popfq. Just emit them as pushf and popf.

llvm-svn: 42371