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

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

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

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: 129002

DenseMap.

llvm-svn: 128994

llvm-svn: 128988

llvm-svn: 128986

About 90% of the relevant blocks are live-through without uses, and the only
information required about them is their number. This saves memory and enables
later optimizations that need to look at only the use-blocks.

llvm-svn: 128985

Add more complete sanity check for LdStFrm instructions where if IBit (Inst{25})
is 1, Inst{4} should be 0.  Otherwise, we should reject the insn as invalid.

rdar://problem/9239347
rdar://problem/9239467

llvm-svn: 128977

Start teaching the runtime Dyld interface to use the memory manager API
for allocating space. Rather than mapping directly into the MachO object,
we extract the payload for each object and copy it into a dedicated buffer
allocated via the memory manager. For now, just do Segment64, so this works
on x86_64, but not yet on ARM.

llvm-svn: 128973

Reapply r128946 (pseudoization of various instructions), and fix the extra imp-def of CPSR it was adding.

llvm-svn: 128965

llvm-svn: 128964

llvm-svn: 128963

llvm-svn: 128962

Treat the landing pad as a normal successor when that happens.

llvm-svn: 128961

llvm-svn: 128959

encodings for DisassembleArithMiscFrm().

rdar://problem/9238659

llvm-svn: 128958

llvm-svn: 128953

llvm-svn: 128951

    Qd -> bit[12] == 0
    Qn -> bit[16] == 0
    Qm -> bit[0]  == 0

If one of these bits is 1, the instruction is UNDEFINED.

rdar://problem/9238399
rdar://problem/9238445

llvm-svn: 128949

llvm-svn: 128947

llvm-svn: 128946

Added checks for regs which should not be 15.

rdar://problem/9237734

llvm-svn: 128945

still used by RegionInfo :(

llvm-svn: 128943

For register-controlled shifts, we should check that the encoding constraint
Inst{7} = 0 and Inst{4} = 1 is satisfied.

rdar://problem/9237693

llvm-svn: 128941

Fix bugs in the pseuo-ization of ADCS/SBCS pointed out by Jim, as well as doing the expansion earlier (using a custom inserter) to allow for the chance of predicating these instructions.

llvm-svn: 128940

llvm-svn: 128935

llvm-svn: 128929

of a basic block.

llvm-svn: 128925

llvm-svn: 128924

Modify DisassembleCoprocessor() of ARMDisassemblerCore.cpp to react to the change.

rdar://problem/9236873

llvm-svn: 128922

llvm-svn: 128920

When dead code elimination removes all but one use, try to fold the single def into the remaining use.

Rematerialization can leave single-use loads behind that we might as well fold whenever possible.

llvm-svn: 128918