llvm-svn: 113350

fixing rdar://8403974

llvm-svn: 113349

implementing rdar://8033482 and PR7254.

llvm-svn: 113348

implementation's job to check for and lex the EndOfStatement
marker.

llvm-svn: 113347

Add this to the mc assembler, fixing PR8061

llvm-svn: 113346

ARM/Disassembler: Fix definitions incompatible(unsigned and uint32_t) to Cygwin-1.5, following up to r113255.

llvm-svn: 113345

rdar://8061602

llvm-svn: 113343

llvm-svn: 113338

llvm-svn: 113337

related. (attempt deux, complete w/ test update this time)

llvm-svn: 113333

llvm-svn: 113332

llvm-svn: 113331

AliasAnalysis, and some code for implementing the new query on top of
existing implementations by making standard alias and getModRefInfo
queries.

llvm-svn: 113329

present in the function and thus whether aligned load/store instructions can
be used.

llvm-svn: 113323

llvm-svn: 113322

The threshold value of 50 is arbitrary, and I chose it simply by analogy to the inlining thresholds, where
the baseline unrolling threshold is slightly smaller than the baseline inlining threshold.  This could
undoubtedly use some tuning.

llvm-svn: 113306

LiveIntervals already adds <imp-def> operands for super-registers when a subreg
def defines the whole register. Thus, it is not necessary to do it again when
rewriting.

In fact, the super-register imp-defs caused miscompilations because the late
scheduler couldn't see that the super-register was read.

We still add super-reg <imp-use,kill> operands when rewriting virtuals to
physicals.

llvm-svn: 113299

register must be one of the destination registers for the load. Otherwise,
the tLDM instruction will write-back to the base register, which isn't what's
desired (otherwise, we'd have a t2LDM_UPD instead).

rdar://8394087

llvm-svn: 113297

llvm-svn: 113289

Factor out some x86 vector shuffle rewriting and add comments about the direction the shuffle lowering is heading to

llvm-svn: 113286

switch to using a ManagedStatic for the global PassRegistry instead of a
ManagedCleanup, and fix a destruction ordering bug this exposed.

llvm-svn: 113283

llvm-svn: 113267

llvm-svn: 113261

turning (fptrunc (sqrt (fpext x))) -> (sqrtf x)  is great, but we have
to delete the original sqrt as well.  Not doing so causes us to do 
two sqrt's when building with -fmath-errno (the default on linux).

llvm-svn: 113260

llvm-svn: 113259

llvm-svn: 113255

and exposing internal details.

llvm-svn: 113252

decouple MMX check from regular splat checks. Some refactoring is coming, and MMX should be left alone to be easily removed after moving to intrinsics

llvm-svn: 113247

llvm-svn: 113242

GetMainExecutable yet.

llvm-svn: 113240

llvm-svn: 113239

llvm-svn: 113235

Enable palignr intrinsic.
These may need adjustment for a new VT in due course.

llvm-svn: 113233

llvm-svn: 113224

llvm-svn: 113200

teach LazyValueInfo to use them.

llvm-svn: 113196

Switch from isWeakForLinker to mayBeOverridden which is more accurate.

Add more statistics and debugging info. Add comments. Move static function
outside anonymous namespace.

llvm-svn: 113190

llvm-svn: 113189

llvm-svn: 113188

Fix zeroExtend and signExtend to support empty sets, and to return the smallest
possible result set which contains the extension of each element in their
inputs. For example zext i8 [100, 10) to i16 is now [0, 256), not i16 [100, 10)
which contains 63446 members.

llvm-svn: 113187