This function performed acrobatics to prove no-self-wrap, which we now
have for free.

llvm-svn: 127643

register operand was erroneously added.  Remove an incorrect assert which triggers the bug.

rdar://problem/9131529

llvm-svn: 127642

and then go kablooie. The problem was that it was tracking the PHI nodes anew
each time into this function. But it didn't need to. And because the recursion
didn't know that a PHINode was visited before, it would go ahead and call
itself.

There is a testcase, but unfortunately it's too big to add. This problem will go
away with the EH rewrite.
<rdar://problem/8856298>

llvm-svn: 127640

This needs review.

llvm-svn: 127638

Also more cleanly separate the ARM vs. Thumb functionality. Previously, the
encoding would be incorrect for some Thumb instructions (the indirect calls).

llvm-svn: 127637

normal version.

Fixes rdar://9123638

llvm-svn: 127636

Make llvm::Consumer a class (to remove a MSVC warning since Consumer is later forward declared as a struct)

llvm-svn: 127632

can. As Nate pointed out, VTBL isn't super performant, but it *has* to be better
than this:

_shuf:
@ BB#0:       @ %entry
  push        {r4, r7, lr}
  add         r7, sp, #4
  sub         sp, #12
  mov         r4, sp
  bic         r4, r4, #7
  mov         sp, r4
  mov         r2, sp
  vmov        d16, r0, r1
  orr         r0, r2, #6
  orr         r3, r2, #7
  vst1.8      {d16[0]}, [r3]
  vst1.8      {d16[5]}, [r0]
  subs        r4, r7, #4
  orr         r0, r2, #5
  vst1.8      {d16[4]}, [r0]
  orr         r0, r2, #4
  vst1.8      {d16[4]}, [r0]
  orr         r0, r2, #3
  vst1.8      {d16[0]}, [r0]
  orr         r0, r2, #2
  vst1.8      {d16[2]}, [r0]
  orr         r0, r2, #1
  vst1.8      {d16[1]}, [r0]
  vst1.8      {d16[3]}, [r2]
  vldr.64     d16, [sp]
  vmov        r0, r1, d16
  mov         sp, r4
  pop         {r4, r7, pc}

The "illegal" testcase in vext.ll is no longer illegal.
<rdar://problem/9078775>

llvm-svn: 127630

doesn't return, so just go back to using the old runtime function instead
of trying to use abort() when __builtin_unreachable (or an equivalent) isn't
supported.

llvm-svn: 127629

This patch is a big refactoring of llvm-diff. It doesn't add new features, but it re-organizes the old features, so I can insert the MetadataEngine to use the same infrastructure.

llvm-svn: 127627

function.

llvm-svn: 127626

llvm-svn: 127621

llvm-svn: 127620

llvm-svn: 127619

Use the opportunity to get rid of the trailing underscore variable names.

llvm-svn: 127618

where none was before.  Just don't declare it and hope it's declared
in every translation unit that needs it.

llvm-svn: 127612

llvm-svn: 127610

builds, which was the apparent consensus of PR8973 and llvmdev.

llvm-svn: 127608

Remove the unused reserved_ bit vector, no functional change intended.

This doesn't break 'svn blame', this file really is all my fault.

llvm-svn: 127607

llvm-svn: 127601

llvm-svn: 127600

llvm-svn: 127598

llvm-svn: 127595

llvm-svn: 127593

llvm-svn: 127592

llvm-svn: 127591

properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.

llvm-svn: 127590

llvm-svn: 127589

- Emit all arrays as type .b8 and proper sizes in bytes to conform
  to the output of nvcc

llvm-svn: 127584

llvm-svn: 127578

llvm-svn: 127577

llvm-svn: 127576

llvm-svn: 127575

Early CSE pass so this patch reverts it to original source code.

llvm-svn: 127574

llvm-svn: 127569

load and store reference same memory location, the memory location
is represented by getelementptr with two uses (load and store) and
the getelementptr's base is alloca with single use. At this point,
instructions from alloca to store can be removed.
(this pattern is generated when bitfield is accessed.)
For example,
%u = alloca %struct.test, align 4               ; [#uses=1]
%0 = getelementptr inbounds %struct.test* %u, i32 0, i32 0;[#uses=2]
%1 = load i8* %0, align 4                       ; [#uses=1]
%2 = and i8 %1, -16                             ; [#uses=1]
%3 = or i8 %2, 5                                ; [#uses=1]
store i8 %3, i8* %0, align 4

llvm-svn: 127565

llvm-svn: 127562

Use the virtual register number as a cache tag instead. They are not reused.

llvm-svn: 127561

This allows the allocator to free any resources used by the virtual register,
including physical register assignments.

llvm-svn: 127560

llvm-svn: 127555