llvm-svn: 126488

Yes, there are other types than i8* and GEPs on them can produce an add+multiply.
We don't consider that cheap enough to be speculatively executed.

llvm-svn: 126481

llvm-svn: 126479

llvm-svn: 126477

llvm-svn: 126471

llvm-svn: 126467

is possible to do better if the high bit is set in either KnownZero/KnownOne, but
in practice NumSignBits is always 1 when we are zero extending because nothing
is known about that register.

llvm-svn: 126465

actually larger.

llvm-svn: 126464

llvm-svn: 126463

D registers since the vpush list may not have gaps. Make sure the stack
adjustment instruction isn't moved between them. Ditto for vpop in
epilogues.

Sorry, can't reduce a small test case.
rdar://9043312

llvm-svn: 126457

llvm-svn: 126452

New live ranges are assigned in long -> short order, but live ranges that have
been evicted at least once are deferred and assigned in short -> long order.

Also disable splitting and spilling for live ranges seen for the first time.

The intention is to create a realistic interference pattern from the heavy live
ranges before starting splitting and spilling around it.

llvm-svn: 126451

llvm-svn: 126450

llvm-svn: 126445

Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

llvm-svn: 126443

llvm-svn: 126441

llvm-svn: 126436

6m30.

llvm-svn: 126426

Patch by Nathan Jeffords!

llvm-svn: 126425

Limit the folding of any_ext and sext  into the load operation to scalars.
Limit the active-bits trunc optimization to scalars.
Document vector trunc and vector sext in LangRef.

Similar to commit 126080 (for enabling zext).

llvm-svn: 126424

The problem was codegen guessing the wrong values and printing

	.section	.eh_frame,"aMS",@progbits,4

It is not clear at all if Codegen should try to guess, MC is the
one that should know the default flags.

llvm-svn: 126421

llvm-svn: 126402

llvm-svn: 126401

llvm-svn: 126399

llvm-svn: 126398

llvm-svn: 126397

llvm-svn: 126384

test/lit.cfg: Add PATHEXT to 'substitution', to recognize tools on Windows hosts. Thanks to Danil Malyshev!

Some tests on Windows use the "not" utility and fail with an error "program not executable". The reason for this error is that the name of the executable file sended to the "not" without the extension.

llvm-svn: 126383

understandable (at least I find it easier to understand like this).
No intended functionality change.

llvm-svn: 126382

- Don't leak parsed operands during tokenization.
- Don't leak printed insts in llvm-mc.

llvm-svn: 126381

registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126380

llvm-svn: 126379

a block is visited before all of its predecessors.

llvm-svn: 126378

llvm-svn: 126377

and make the actual map private.

llvm-svn: 126376

allows for the information propagated across basic blocks to be merged at phis.

llvm-svn: 126375

trivial places.  This pass needs a lot of work.

llvm-svn: 126367

to reduce nesting.  This needs to be turned into a table.

llvm-svn: 126366

function prototype into a call to a varargs prototype.  We do
allow the xform if we have a definition, but otherwise we don't
want to risk that we're changing the abi in a subtle way.  On
X86-64, for example, varargs require passing stuff in %al.

llvm-svn: 126363

operands starts at index 2, not 1.
rdar://9045024
PR9305

llvm-svn: 126359