llvm-svn: 129039

Teach the ARM peephole optimizer that RSB, RSC, ADC, and SBC can be used for folded comparisons, just like ADD and SUB.

llvm-svn: 129038

Translate dwarf register numbers to internal register numbers
before trying to look them up in register contexts, in the 
emulation callback functions that read & write the frame registers.

llvm-svn: 129037

llvm-svn: 129036

llvm-svn: 129035

llvm-svn: 129034

The ARM disassembler should reject invalid (type, align) encodings as invalid instructions.

So, instead of:
Opcode=1641 Name=VST2b32_UPD Format=ARM_FORMAT_NLdSt(30)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0| 0: 0: 1: 1| 0: 0: 0: 0| 1: 0: 0: 1| 1: 0: 1: 1| 0: 0: 1: 1|
-------------------------------------------------------------------------------------------------

	vst2.32	{d0, d2}, [r3, :256], r3

we now have:
Opcode=1641 Name=VST2b32_UPD Format=ARM_FORMAT_NLdSt(30)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0| 0: 0: 1: 1| 0: 0: 0: 0| 1: 0: 0: 1| 1: 0: 1: 1| 0: 0: 1: 1|
-------------------------------------------------------------------------------------------------

mc-input.txt:1:1: warning: invalid instruction encoding
0xb3 0x9 0x3 0xf4
^

llvm-svn: 129033

llvm-svn: 129032

llvm-svn: 129030

Without any positive bias, there is nothing for the spill placer to to. It will
spill everywhere.

llvm-svn: 129029

llvm-svn: 129028

Since these "Advanced SIMD and VFP" instructions have more specfic encoding bits
specified, if coproc == 10 or 11, we should reject the insn as invalid.

rdar://problem/9239922
rdar://problem/9239596

llvm-svn: 129027

so I'm killing it.

llvm-svn: 129026

llvm-svn: 129025

llvm-svn: 129024

If there are no positive nodes, the algorithm can be aborted early.

llvm-svn: 129021

This will allow us to abort the algorithm early if it is determined to be futile.

llvm-svn: 129020

llvm-svn: 129019

llvm-svn: 129018

llvm-svn: 129017

types such that protocols are seached first. Fixes
// rdar://9224670

llvm-svn: 129016

Also set the encoding bits (for A8.6.303, A8.6.328, A8.6.329) Inst{3-0} = 0b0000,
in class NVLaneOp.

rdar://problem/9240648

llvm-svn: 129015

Patch by Bobby Powers

llvm-svn: 129014

llvm-svn: 129013

llvm-svn: 129012

Change the test to force a sign extension and expose the problem again.

llvm-svn: 129011

Keep track of llvm.dbg.value intrinsics with non null values.

llvm-svn: 129010

This takes the linking of libxul on linux from 6m54.931s to 5m39.840s.

llvm-svn: 129009

llvm-svn: 129008

llvm-svn: 129006

pass a previously failing clang test.
// rdar://8808439

llvm-svn: 129004

llvm-svn: 129002

llvm-svn: 129001

llvm-svn: 129000

test fail (without the fix). Thanks Dan.

llvm-svn: 128999

be sure to consume the argument index that actually had the attribute
rather than always the first.  rdar://problem/9234108

llvm-svn: 128998

llvm-svn: 128997

llvm-svn: 128996

DenseMap.

llvm-svn: 128994

llvm-svn: 128993