llvm-svn: 121410

a bug in Apple GCC 4.0.

llvm-svn: 121409

Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.

llvm-svn: 121408

llvm-svn: 121404

llvm-svn: 121402

the condition codes.  Where the ones that do have an 's' suffix and the ones
that don't don't have the suffix.  The trick is if MatchInstructionImpl() fails
we try again after adding a CCOut operand with the correct value and removing
the 's' if present.  Four simple test cases added for now, lots more to come.

llvm-svn: 121401

llvm-svn: 121399

t_brtarget to be more specific.

llvm-svn: 121398

llvm-svn: 121395

Otherwise, a plain str/ldr should be used instead. Make sure we account for
that in prologue/epilogue code generation.
rdar://8745460

llvm-svn: 121391

Remove the previous header.  I don't think we need to expose to end users
that we use TableGen to produce our version of arm_neon.h, and that header
was also using doubleslash comments which could be a problem when using it
in strict C89 compilations.

llvm-svn: 121390

heuristic to reshuffle register assignments when we can't find an
available reg.

llvm-svn: 121388

llvm-svn: 121387

llvm-svn: 121386

llvm-svn: 121385

llvm-svn: 121383

llvm-svn: 121382

templated c_str in Windows.h to replace it.

llvm-svn: 121381

return their result instead of an error_code. Also add some missing predicate
functions.

llvm-svn: 121380

llvm-svn: 121379

llvm-svn: 121377

llvm-svn: 121376

llvm-svn: 121372

llvm-svn: 121371

llvm-svn: 121370

llvm-svn: 121362

substitution because it doesn't actually change the IR.  Patch by
Jakub Staszak!

llvm-svn: 121361

the output to the correct register. Fixes a hidden problem uncovered
by the last patch where we'd try to DAG combine our MVT::Other node
oddly.

llvm-svn: 121358

llvm-svn: 121357

llvm-svn: 121356

llvm-svn: 121355

llvm-svn: 121354

before eliminating the operation that zeros them. This fixes rdar://8739316.

llvm-svn: 121353

llvm-svn: 121351

llvm-svn: 121350

llvm-svn: 121349

referencing the stack pointer as they say they are.

llvm-svn: 121347

update the opcode when necessary as well as the source register.

llvm-svn: 121346

them.

llvm-svn: 121345

references instead.

Similarly, IntervalMap::begin() is almost as expensive as find(), so use find(x)
instead of begin().advanceTo(x);

This makes RegAllocBasic run another 5% faster.

llvm-svn: 121344