If there is no interference and no last split point, we cannot
enterIntvBefore(Stop) - that function needs a real instruction.

Use enterIntvAtEnd instead for that very easy case.

This code doesn't currently run, it is needed by multi-way splitting.

llvm-svn: 135846

A split candidate can have a null PhysReg which means that it doesn't
map to a real interference pattern. Instead, pretend that all through
blocks have interference.

This makes it possible to generate compact regions where the live range
doesn't go through blocks that don't use it. The live range will still
be live between directly connected blocks with uses.

Splitting around a compact region tends to produce a live range with a
high spill weight, so it may evict a less dense live range.

llvm-svn: 135845

This method matches addLinks - All the listed blocks are considered to
have interference, so they add a negative bias to their bundles.

This could also be done by addConstraints, but that requires building a
separate BlockConstraint array.

llvm-svn: 135844

They always report 'no interference'.

llvm-svn: 135843

llvm-svn: 135837

llvm-svn: 135833

removes its dependence on canonical induction variables.

llvm-svn: 135829

llvm-svn: 135828

llvm-svn: 135826

llvm-svn: 135825

The immediate is in the range 1-32, but is encoded as 0-31 in a 5-bit bitfield.
Update the representation such that we store the operand as 0-31, allowing us
to remove the encoder method and the special case handling in the disassembler.
Update the assembly parser and the instruction printer accordingly.

llvm-svn: 135823

so that a declaration for objc_retain is created when needed if it doesn't
already exist. rdar://9825114.

llvm-svn: 135821

Tests for SMULBB, SMLALBT, SMLALTB, SMLALTT, and SMULL. Fix parsing of SMULLS.

llvm-svn: 135817

InitializeX86MCInstrInfo, etc. are combined into InitializeX86TargetMC.

llvm-svn: 135812

emitted, emit them next as CIE/FDEs.

llvm-svn: 135807

load folding logic

llvm-svn: 135801

Fix parsing of carry-setting variant SMLALS and add tests.

llvm-svn: 135797

Fix encoding of destination register. Add tests.

llvm-svn: 135796

llvm-svn: 135794

too. Patch by Jeff Muizelaar.

llvm-svn: 135789

of doing the RAUW calls for the overflow value itself. This makes
it more consistent with how the rest of LegalizeDAG works.

llvm-svn: 135788

llvm-svn: 135785

llvm-svn: 135782

These instruction definitions are for the assembler, too, not just the
disassembler.

llvm-svn: 135781

llvm-svn: 135779

llvm-svn: 135778

llvm-svn: 135777

Add parsing and diagnostics for malformed inputs. Tests for diagnostics and
for correct encodings.

llvm-svn: 135776

llvm-svn: 135771

ConstantExpr::getGetElementPtr to use ArrayRef.

llvm-svn: 135762

ArrayRef.

llvm-svn: 135761

The header file was already properly located. The previous need for it
in Support had to do with the version string printing which was fixed in
r135757.

Also update build dependencies where libraries that needed the
functionality of the Target library (in the form of the TargetRegistry)
were picking it up via Support. This is pretty pervasive, essentially
every TargetInfo library (ARMInfo, etc) uses TargetRegistry, making it
depend on Target. All of these were previously just sneaking by.

llvm-svn: 135760

ConstantExpr::getGetElementPtr to use ArrayRef.

llvm-svn: 135758

the Support library. Now its part of the TargetRegistry, and the three
commands that care about this explicitly register this extra bit of
version information.

The set of commands which care was computed by intersecting those which
use the Support library's version string printing and those that
initialize all the registered targets in a way that produces
a meaningful list. The only odd ball out is that 'clang -cc1as -version'
no longer prints the registered targets. I don't think anyone is really
interested in that (especially as the fact that llvm-mc does so is under
a FIXME), but if someone really does want this back I'll happily apply
the same patch there.

llvm-svn: 135757

function on the TargetRegistry. Also clean it up and use the modern LLVM
utility libraries available instead of rolling a few things manually.

llvm-svn: 135756

register extra version information to be printed. This is designed to
allow those tools which link in various targets to also print those
registered targets under --version.

Currently this printing logic is embedded into the Support library
directly; a huge layering violation. This is the first step to hoisting
it out into the tools without adding lots of duplicated code.

llvm-svn: 135755

FIXME: There is an inconsistency. llvm::Triple does not understand "ppc32" and PowerPC/TargetInfo holds "ppc32".
llvm-svn: 135745

llvm-svn: 135742

Remove the escaped newline.

llvm-svn: 135739

llvm-svn: 135738