llvm-svn: 56359

use ARG_FLAGSSDNode as the most aligned node type,
as it contains an int64_t, which is 8-byte
aligned on mingw.

llvm-svn: 56358

llvm-svn: 56355

llvm-svn: 56352

llvm-svn: 56349

untested, Use::swap() is definitely not done yet

llvm-svn: 56348

llvm-svn: 56345

and non-demotion of readnone to readonly.

llvm-svn: 56344

llvm-svn: 56343

Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.

llvm-svn: 56342

can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.

llvm-svn: 56341

llvm-svn: 56338

description says it does), not just when -analyze is
used as well.  This means printing to stderr, so adjust
some tests.

llvm-svn: 56337

and redo as linked list walk.  Logic moved into RA.
Per review feedback.

llvm-svn: 56326

Fixes PR 2805

llvm-svn: 56321

catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.

llvm-svn: 56320

Thanks to Ji Young Park for the patch!

llvm-svn: 56316

llvm-svn: 56315

llvm-svn: 56314

llvm-svn: 56311

defs to be necessarily live.

llvm-svn: 56310

llvm-svn: 56308

copy of the BURRList scheduler, but with several parts ripped
out, such as backtracking, online topological sort maintenance
(needed by backtracking), the priority queue, and Sethi-Ullman
number computation and maintenance (needed by the priority
queue). As a result of all this, it generates somewhat lower
quality code, but that's its tradeoff for running about 30%
faster than list-burr in -fast mode in many cases.

This is somewhat experimental. Moving forward, major pieces of
this can be refactored with pieces in common with
ScheduleDAGRRList.cpp.

llvm-svn: 56307

Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.

llvm-svn: 56303

llvm-svn: 56301

llvm-svn: 56300

llvm-svn: 56299

over having it in a register. And wait until after checking type
legality before requesting that the callee address be placed in a
register. Also, fix support for calls with void return type.

This speeds up fast-isel isel time by about 15% and reduces
instruction counts by about 3% overall on certain testcases. It also
changes many indirect calls to direct calls.

llvm-svn: 56292

with an earlyclobber operand elsewhere.  Propagate
this bit and the earlyclobber bit through SDISel.
Change linear-scan RA not to allocate regs in a way 
that conflicts with an earlyclobber.  See also comments.

llvm-svn: 56290

llvm-svn: 56287

llvm-svn: 56286

This one slipped through cracks very well.

llvm-svn: 56284

llvm-svn: 56282

llvm-svn: 56281

llvm-svn: 56277

llvm-svn: 56276

llvm-svn: 56275

up some new ascii art to illustrate what it does. This change
currently has no effect on generated code.

llvm-svn: 56270

be used with fast-isel.

llvm-svn: 56268

function with appropriate parameters. This allows us to support blocks on PPC.

llvm-svn: 56267