Patch extracted from a larger one by the PaX team. I added the testcases
and tightened error handling a bit.

llvm-svn: 158523

llvm-svn: 158513

example degenerate phi nodes and binops that use themselves in unreachable code.
Thanks to Charles Davis for the testcase that uncovered this can of worms.

llvm-svn: 158508

llvm-svn: 158497

llvm-svn: 158485

llvm-svn: 158484

Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access.  Now with additional fix and test for indexing into a vector inside a struct

llvm-svn: 158479

globaldce. Globaldce was already removing linkonce globals, but globalopt was
not.

llvm-svn: 158476

Can someone with more knowledge of this please look at other entries
to see if others need moved.

llvm-svn: 158474

llvm-svn: 158471

being used by Mips16 or Micro Mips
2. clean up a few lines too long encountered

Patch by Reed Kotler.

llvm-svn: 158470

the last instruction of a basic block.

llvm-svn: 158468

llvm-svn: 158467

This reverts commit 12c1f86ffa731e2952c80d2cc577000c96b8962c.

llvm-svn: 158462

llvm-svn: 158461

Replaced memcpy with std::copy, since the first one may work improperly with non POD data.

llvm-svn: 158457

Patch by Wei-Ren Chen.

llvm-svn: 158456

llvm-svn: 158455

Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access.  Now with additional fix and test for indexing into a vector inside a struct

llvm-svn: 158454

llvm-svn: 158453

llvm-svn: 158446

llvm-svn: 158445

llvm-svn: 158443

Sorry that I accidently checked in this file with my previous commit.

llvm-svn: 158442

uno && ueq was converted to ueq, it should be converted to uno.

llvm-svn: 158441

llvm-svn: 158438

llvm-svn: 158437

llvm-svn: 158436

llvm-svn: 158435

llvm-svn: 158434

llvm-svn: 158433

as a scratch register when they are expanded to long branches.

llvm-svn: 158432

to load an immediate that does not fit into 16-bit. 

llvm-svn: 158431

to load an immediate that does not fit into 16-bit. Also, take into
consideration the global base register slot on the stack when computing the
stack size. 

llvm-svn: 158430

compute the size of basic blocks in a function. Also, define a function which
emits a series of instructions to load an immediate.

llvm-svn: 158429

Long-branches need access to the global base register to get the destination
address.

llvm-svn: 158428

object for the global base register.

This is the first of a series of patches which implements long branch expansion
for MIPS.

llvm-svn: 158427

delay slot filler pass of MIPS, per suggestion of Jakob Stoklund Olesen.

This change, along with the fix in r158154, enables machine verification
to be run after delay slot filling.

llvm-svn: 158426

padding on x86-64.

llvm-svn: 158421

pattern:

(add v0, (add v1, abs_lo(tjt))) => (add (add v0, v1), abs_lo(tjt))

"tjt" is a TargetJumpTable node. 

llvm-svn: 158419