no cost to using memcpy here: the fixed code is optimized by LLVM to perfect
machine code.

llvm-svn: 162311

llvm-svn: 162306

this is the index of the operand that failed to match.

Note: This may cause a buildbot failure due to an API mismatch in clang.  Should
recover with my next commit to clang.

llvm-svn: 162295

llvm-svn: 162270

llvm-svn: 162267

llvm-svn: 162264

llvm-svn: 162263

Replace a break with llvm_unreachable in the default case of a nested switch. Condense code a bit. No functional change.

llvm-svn: 162261

llvm-svn: 162260

llvm-svn: 162257

*** Bad machine code: Explicit definition marked as use ***
- function:    test_cos
- basic block: BB#0 L.entry (0x7ff2a2024fd0)
- instruction: VSETLNi32 %D11, %D11<undef>, %R0, 0, pred:14, pred:%noreg, %Q5<imp-use,kill>, %Q5<imp-def>
- operand 0:   %D11

llvm-svn: 162247

The test case ARM/2011-05-04-MultipleLandingPadSuccs.ll was creating
duplicate successor list entries.

llvm-svn: 162222

llvm-svn: 162217

llvm-svn: 162214

Patch by Petar Jovanovic.

llvm-svn: 162213

llvm-svn: 162194

llvm-svn: 162193

llvm-svn: 162192

this allows for better code generation.

Added a new DAGCombine transformation to convert FMAX and FMIN to FMANC and
FMINC, which are commutative.

For example:

  movaps  %xmm0, %xmm1
  movsd LC(%rip), %xmm0
  minsd %xmm1, %xmm0

becomes:

  minsd LC(%rip), %xmm0

llvm-svn: 162187

llvm-svn: 162186

These nodes are no longer needed because the peephole pass can fold
CMOV+AND into ANDCC etc.

llvm-svn: 162179

Remove virtual from many methods. These methods replace methods in the base class, but the base class methods aren't virtual so it just increased call overhead.

llvm-svn: 162178

This turns common i1 patterns into predicated instructions:

  (add (zext cc), x) -> (select cc (add x, 1), x)
  (add (sext cc), x) -> (select cc (add x, -1), x)

For a function like:

  unsigned f(unsigned s, int x) {
    return s + (x>0);
  }

We now produce:

  cmp r1, #0
  it  gt
  addgt.w r0, r0, #1

Instead of:

  movs  r2, #0
  cmp r1, #0
  it  gt
  movgt r2, #1
  add r0, r2

llvm-svn: 162177

Add these transformations to the existing add/sub ones:

  (and (select cc, -1, c), x) -> (select cc, x, (and, x, c))
  (or  (select cc, 0, c), x)  -> (select cc, x, (or, x, c))
  (xor (select cc, 0, c), x)  -> (select cc, x, (xor, x, c))

The selects can then be transformed to a single predicated instruction
by peephole.

This transformation will make it possible to eliminate the ISD::CAND,
COR, and CXOR custom DAG nodes.

llvm-svn: 162176

Reapply r162160 with a fix: Optimize Arith->Trunc->SETCC sequence to allow better compare/branch code.

llvm-svn: 162172

Make sure the generic pattern is used.

llvm-svn: 162170

Refactor code a bit to reduce number of calls in the final compiled code. No functional change intended.

llvm-svn: 162166

llvm-svn: 162165

llvm-svn: 162164

arithmetic instructions. However, when small data types are used, a truncate
node appears between the SETCC node and the arithmetic operation. This patch
adds support for this pattern.

Before:
  xorl  %esi, %edi
  testb %dil, %dil
  setne %al
  ret

After:
  xorb  %dil, %sil
  setne %al
  ret

rdar://12081007

llvm-svn: 162160

llvm-svn: 162136

No new tests are added.
All tests in ExecutionEngine/MCJIT that have been failing pass after this patch
is applied (when "make check" is done on a mips board). 

Patch by Petar Jovanovic.

llvm-svn: 162135

PEI can't handle the pseudo-instructions. This can be removed when the
pseudo-instructions are replaced by normal predicated instructions.

Fixes PR13628.

llvm-svn: 162130

Patch by Vladimir Medic.

llvm-svn: 162124

make it more consistent with its intended semantics.

The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.

The intended semantic is more like the `linkonce_odr' linkage type.

Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.

Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>

llvm-svn: 162114

llvm-svn: 162107

llvm-svn: 162094

llvm-svn: 162089

Make ReplaceATOMIC_BINARY_64 a static function. Use a nested switch to reduce to only a single call to it thus allowing it to be inlined by the compiler.

llvm-svn: 162088

llvm-svn: 162086