llvm-svn: 89326

llvm-svn: 89325

llvm-svn: 89218

llvm-svn: 89214

contents of the block to be duplicated.  Use this for ARM Cortex A8/9 to
be more aggressive tail duplicating indirect branches, since it makes it
much more likely that they will be predicted in the branch target buffer.
Testcase coming soon.

llvm-svn: 89187

llvm-svn: 89143

alignment imm (in the same way). Fix asmprinting for non-darwin platforms.

llvm-svn: 89137

distinguish between them and the more generic instructions (add, mov, and ldr).

llvm-svn: 89108

is analyzable so it can be updated. If it's not, be safe and don't move the
block.

llvm-svn: 89022

0b1110 (ALways).  This is so that the disassembler decoder can distinguish among
BX_RET, BRIND, and BXr9.

llvm-svn: 89000

llvm-svn: 88964

llvm-svn: 88961

usage of block sizes and offsets.

llvm-svn: 88935

llvm-svn: 88933

llvm-svn: 88919

Analyze has to be before checking the condition, obviously. Properly construct an iterator for prior.

llvm-svn: 88917

conservatively. eliminateFrameIndex() machinery adjust to handle addr mode
6 (vld1/vst1) used for spills. Fix tests to expect aligned Q-reg spilling

llvm-svn: 88874

llvm-svn: 88873

llvm-svn: 88812

llvm-svn: 88805

- If destination is a physical register and it has a subreg index, use the
  sub-register instead.
This fixes PR5423.

llvm-svn: 88745

llvm-svn: 88734

Move DebugInfo checks into EmitComments and remove them from
target-specific AsmPrinters.  Not all comments need DebugInfo.

Re-enable the line numbers comment test.

llvm-svn: 88697

llvm-svn: 88682

llvm-svn: 87056

llvm-svn: 87054

Make the MachineFunction argument of getFrameRegister const.

This also fixes a build error.

llvm-svn: 87027

Add a bool flag to StackObjects telling whether they reference spill
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022

to directly follow the jump table. Move the layout changes to prior to any
constant island handling.

llvm-svn: 86999

llvm-svn: 86965

llvm-svn: 86964

Revert 86857. It's causing consumer-typeset to fail, and there's a better way to do it forthcoming anyway.

llvm-svn: 86945

Add TargetLowering::isLegalICmpImmediate. It tells LSR what immediate can be folded into target icmp instructions.

llvm-svn: 86858

llvm-svn: 86857

The TBB and TBH instructions for Thumb2 are really handy for jump tables, but
can only branch forward. To best take advantage of them, we'd like to adjust
the basic blocks around a bit when reasonable. This patch puts basics in place
to do that, with a super-simple algorithm for backwards jump table targets that
creates a new branch after the jump table which branches backwards. Real
heuristics for reordering blocks or other modifications rather than inserting
branches will follow.

llvm-svn: 86791

[r0, #2 * 4]
Now
[r0, #8]

This makes Thumb2 assembly more uniform and frankly the scale doesn't add much.

llvm-svn: 86707

llvm-svn: 86706

llvm-svn: 86634

Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies. 

llvm-svn: 86628

not necessary.

llvm-svn: 86621