llvm-svn: 97454

llvm-svn: 97453

llvm-svn: 97452

llvm-svn: 97451

llvm-svn: 97450

llvm-svn: 97449

llvm-svn: 97448

llvm-svn: 97447

llvm-svn: 97446

llvm-svn: 97443

structural matching code to be factored and shared this
shrinks the X86 isel table from 86537 to 83890 bytes.

llvm-svn: 97442

llvm-svn: 97441

This allows formation of OpcodeSwitch for top level patterns, in
particular on X86.  This saves about 1K of data space in the x86
table and makes the dispatch much more efficient.

llvm-svn: 97440

ComplexPattern at the root be generated multiple times, once
for each opcode they are part of.  This encourages factoring
because the opcode checks get treated just like everything
else in the matcher.

llvm-svn: 97439

to a scope where every child starts with a CheckOpcode, but
executes more efficiently.  Enhance DAGISelMatcherOpt to 
form it.

This also fixes a bug in CheckOpcode: apparently the SDNodeInfo
objects are not pointer comparable, we have to compare the
enum name.

llvm-svn: 97438

pair.  This encourages MorphNodeTo formation, this gets us 200
more MorphNodeTo's on X86 and shrinks the table a bit.

llvm-svn: 97434

slot they're recording into, no functionality change.

llvm-svn: 97433

so that we get grouping at the top level.

Add an optimization to reorder type check & record nodes
after opcode checks.  We prefer to expose tree shape 
matching which improves grouping and will enhance the next
optimization.

llvm-svn: 97432

dispatcher method.  This eliminates the dependence of the new isel's
generated code on the old isel's predicates, however some random
hand written isel code still uses them.

llvm-svn: 97431

the vtlist for emitnode.

llvm-svn: 97429

warnings in release-assert builds if there were no cases.

llvm-svn: 97428

llvm-svn: 97427

llvm-svn: 97426

(which gets #included into the middle of each 
target's DAGISel class) into a .cpp file where it is
only compiled once.

llvm-svn: 97425

immediate sizes into the opcode.

llvm-svn: 97423

#included into the middle of each isel class) into a real 
header.

llvm-svn: 97421

llvm-svn: 97420

specifies whether there is an output flag or not.  Use this
instead of redundantly encoding the chain/flag results in the
output vtlist.

llvm-svn: 97419

case of MorphNodeTo directly.

llvm-svn: 97417

is just a silly wrapper around MorphNodeTo.

llvm-svn: 97416

even some the old isel didn't.  There are several parts of
this that make me feel dirty, but it's no worse than the
old isel.  I'll clean up the parts I can do without ripping
out the old one next.

llvm-svn: 97415

llvm-svn: 97414

llvm-svn: 97413

llvm-svn: 97412

llvm-svn: 97411

llvm-svn: 97409

llvm-svn: 97408

APInt.  Be certain to set the integer bit in an x87 extended-precision
significand so that we don't accidentally make a pseudo-NaN.

llvm-svn: 97382

It gets its own implementation totally divorced from the (presumably
performance-sensitive) routines which parse into a uint64_t.

Add APInt::operator|=(uint64_t), which is situationally much better than
using a full APInt.

llvm-svn: 97381

llvm-svn: 97380