llvm-svn: 77354

llvm-svn: 77350

llvm-svn: 77347

llvm-svn: 77340

llvm-svn: 77337

llvm-svn: 77336

mode, and "ld64" (the default linker) falls back to it in -static
mode.

llvm-svn: 77334

llvm-svn: 77329

Add reload and remat backscheduling.  This is disabled by default.  Use
-schedule-spills=true to enable.

llvm-svn: 77327

llvm-svn: 77326

llvm-svn: 77305

llvm-svn: 77301

- This change also makes it possible to switch between ARM / Thumb on a
  per-function basis.
- Fixed thumb2 routine which expand reg + arbitrary immediate. It was using
  using ARM so_imm logic.
- Use movw and movt to do reg + imm when profitable.
- Other code clean ups and minor optimizations.

llvm-svn: 77300

llvm-svn: 77295

it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.

llvm-svn: 77294

llvm-svn: 77293

to a few tests where it is required for the expected transformation.

llvm-svn: 77290

llvm-svn: 77289

llvm-svn: 77286

point where SI can get deleted. This fixes a use of free'd memory.
This fixes Externals/Povray.

llvm-svn: 77285

llvm-svn: 77275

if there are no other uses.  If people don't need this routine
anymore, if should be deleted.

llvm-svn: 77274

llvm-svn: 77272

llvm-svn: 77271

llvm-svn: 77266

llvm-svn: 77262

LangRef.html changes for details.

llvm-svn: 77259

 - My DFS traversal of LLVM is, at least for now, nearly complete! :)

llvm-svn: 77258

llvm-svn: 77256

it conforms to the assertion added in r77245. This fixes a failure
in qa_override.c in clang's testsuite.

llvm-svn: 77255

MCSections soon instead of Section for all targets, and we need something to
own them.

llvm-svn: 77252

llvm-svn: 77251

llvm-svn: 77247

that the subclass hasn't left any pending data in the buffer.

llvm-svn: 77245

Remove TPat. No patterns depend on just isThumb(). Must use either T1Pat (isThumb1Only()) or T2Pat (is Thumb2).

llvm-svn: 77242

llvm-svn: 77239

llvm-svn: 77238

implementations that need it, rearrange ELFTAI.

llvm-svn: 77236

llvm-svn: 77233

llvm-svn: 77232