Assigned symbol addresses get truncated to 32-bits, even on 64-bit platforms.
That's obviously bogus.
For example,

 .globl _foo
 .equ _foo, 0x987654321ULL


rdar://9922863

llvm-svn: 137158

Not sure about BLXi, but this is what the old disassembler did.

llvm-svn: 137156

llvm-svn: 137154

llvm-svn: 137153

The new ARM disassembler disassembles "bx lr" as a special BX_ret instruction so target specific analysis isn't needed anymore.

llvm-svn: 137151

llvm-svn: 137150

rdar://9915869

llvm-svn: 137148

llvm-svn: 137147

llvm-svn: 137146

This is mostly descriptive of the intended state once atomic load and store have landed.  

llvm-svn: 137145

This new disassembler can correctly decode all the testcases that the old one did, though
some "expected failure" testcases are XFAIL'd for now because it is not (yet) as strict in
operand checking as the old one was.

llvm-svn: 137144

llvm-svn: 137137

llvm-svn: 137135

'static' variable will be emitted twice.
PR10081

llvm-svn: 137134

Coalescing can remove copy-like instructions with sub-register operands
that constrained the register class.  Examples are:

  x86: GR32_ABCD:sub_8bit_hi -> GR32
  arm: DPR_VFP2:ssub0 -> DPR

Recompute the register class of any virtual registers that are used by
less instructions after coalescing.

This affects code generation for the Cortex-A8 where we use NEON
instructions for f32 operations, c.f. fp_convert.ll:

  vadd.f32  d16, d1, d0
  vcvt.s32.f32  d0, d16

The register allocator is now free to use d16 for the temporary, and
that comes first in the allocation order because it doesn't interfere
with any s-registers.

llvm-svn: 137133

v4f64 = sitofp v4i32. This fix PR10559.
Also add support for v4i32 = fptosi v4f64.

llvm-svn: 137128

llvm-svn: 137127

- Calls are supported on SM 2.0+ for function with no return values

llvm-svn: 137125

This function doesn't have anything to do with spill weights, and MRI
already has functions for manipulating the register class of a virtual
register.

llvm-svn: 137123

llvm-svn: 137115

llvm-svn: 137114

When this variable is set, "uname -r" will return its value instead of the
real OS version.  Make this affect LLVM's triple for consistency.
<rdar://problem/9919167>

llvm-svn: 137111

LoopUnroll looks like it has some stale code. Remove it to prove my sanity and avoid further confusion.

llvm-svn: 137106

llvm-svn: 137105

llvm-svn: 137104

llvm-svn: 137103

the patterns already there to be more strict regarding the predicate.
This fixes PR10558

llvm-svn: 137100

instead of a vector.

llvm-svn: 137099

The 'unwind' instruction was acting essentially as a placeholder, because it
would be replaced at the end of this function by a branch to the "unwind
handler". The 'unwind' instruction is going away, so use 'unreachable' instead,
which serves the same purpose as a placeholder.

llvm-svn: 137098

llvm-svn: 137096

llvm-svn: 137095

No functional change.

llvm-svn: 137094

llvm-svn: 137091

llvm-svn: 137090

RegisterCoalescer.h still has the CoalescerPair class interface.

llvm-svn: 137088

llvm-svn: 137085

A public interface is no longer needed since RegisterCoalescer is not an
analysis any more.

llvm-svn: 137082

Fix the instruction representation to correctly only allow post-indexed form.
Add tests.

llvm-svn: 137074

llvm-svn: 137073

Patch by Jingyue!

llvm-svn: 137072