llvm-svn: 146571

llvm-svn: 146570

llvm-svn: 146569

llvm-svn: 146568

When 'cmp rn #imm' doesn't match due to the immediate not being representable,
but 'cmn rn, #-imm' does match, use the latter in place of the former, as
it's equivalent.

rdar://10552389

llvm-svn: 146567

llvm-svn: 146566

rdar://10549683

llvm-svn: 146543

  to finalize MI bundles (i.e. add BUNDLE instruction and computing register def
  and use lists of the BUNDLE instruction) and a pass to unpack bundles.
- Teach more of MachineBasic and MachineInstr methods to be bundle aware.
- Switch Thumb2 IT block to MI bundles and delete the hazard recognizer hack to
  prevent IT blocks from being broken apart.

llvm-svn: 146542

rdar://10549767

llvm-svn: 146520

rdar://10550269

llvm-svn: 146519

rdar://10549786

llvm-svn: 146518

llvm-svn: 146516

rdar://10549741

llvm-svn: 146515

llvm-svn: 146514

llvm-svn: 146511

llvm-svn: 146508

llvm-svn: 146507

load and then move the result from a GPR to a FPR.

llvm-svn: 146502

in a 16-bit field.

llvm-svn: 146469

undefined result. This adds new ISD nodes for the new semantics,
selecting them when the LLVM intrinsic indicates that the undef behavior
is desired. The new nodes expand trivially to the old nodes, so targets
don't actually need to do anything to support these new nodes besides
indicating that they should be expanded. I've done this for all the
operand types that I could figure out for all the targets. Owners of
various targets, please review and let me know if any of these are
incorrect.

Note that the expand behavior is *conservatively correct*, and exactly
matches LLVM's current behavior with these operations. Ideally this
patch will not change behavior in any way. For example the regtest suite
finds the exact same instruction sequences coming out of the code
generator. That's why there are no new tests here -- all of this is
being exercised by the existing test suite.

Thanks to Duncan Sands for reviewing the various bits of this patch and
helping me get the wrinkles ironed out with expanding for each target.
Also thanks to Chris for clarifying through all the discussions that
this is indeed the approach he was looking for. That said, there are
likely still rough spots. Further review much appreciated.

llvm-svn: 146466

Constant pool entries with different alignment may cause more alignment
padding to be inserted. Compute the amount of padding needed, and try to
pick the location that requires the least amount of padding.

Also take the extra padding into account when the water is above the
use.

llvm-svn: 146458

llvm-svn: 146457

subdirectories to traverse into.
 - Originally I wanted to avoid this and just autoscan, but this has one key
   flaw in that new subdirectories can not automatically trigger a rerun of the
   llvm-build tool. This is particularly a pain when switching back and forth
   between trees where one has added a subdirectory, as the dependencies will
   tend to be wrong. This will also eliminates FIXME implicitly.

llvm-svn: 146436

-relocation-model=static.

llvm-svn: 146432

llvm-svn: 146431

llvm-svn: 146420

These modifiers simply select either the low or high D subregister of a Neon
Q register.  I've also removed the unimplemented 'p' modifier, which turns out
to be a bit different than the comment here suggests and as far as I can tell
was only intended for internal use in Apple's version of gcc.

llvm-svn: 146417

llvm-svn: 146412

llvm-svn: 146409

llvm-svn: 146407

This computes the offset of the layout sucessor block, considering its
alignment as well.

llvm-svn: 146401

llvm-svn: 146400

llvm-svn: 146397

Downgrade the alignment of the initial constant island when constant
pool entries are moved elsewhere.

This is all gated by -arm-align-constant-islands.

llvm-svn: 146391

Also add an MCP member pointing to the machine constant pool.

No functional change intended.

llvm-svn: 146382

Order constant pool entries by descending alignment in the initial
island to ensure packing and correct alignment.  When the command line
flag is set, also align the basic block containing the constant pool
entries.

This is only a partial implementation of constant island alignment. More
to come.

llvm-svn: 146375

Remove some remants of the old palign pattern fragment that were still hanging around. Also remove a cast from inside getShuffleVPERM2X128Immediate and getShuffleVPERMILPImmediate since the only caller already had done the cast.

llvm-svn: 146344

Fixed bug 9905: Failure in code selection for llvm intrinsics sqrt/exp (fix for FSQRT, FSIN, FCOS, FPOWI, FPOW, FLOG, FLOG2, FLOG10, FEXP, FEXP2). Third attempt: simplified checks in test for armv7-apple-darwin11.

llvm-svn: 146341

llvm-svn: 146340

of r146334!

llvm-svn: 146338