has one of the list of acceptable opcodes for a complex 
pattern.  This fixes 4 regtest failures.

llvm-svn: 96814

of the matched pattern to use the newly created node results.  Onto
the "making it actually work" phase!

llvm-svn: 96724

the point where it is to the 95% feature complete mark, it just
needs result updating to be done (then testing, optimization 
etc).

More specificallly, this adds support for chain and flag handling
on the result nodes, support for sdnodexforms, support for variadic
nodes, memrefs, pinned physreg inputs, and probably lots of other
stuff.

In the old DAGISelEmitter, this deletes the dead code related to
OperatorMap, cleans up a variety of dead stuff handling "implicit
remapping" from things like globaladdr -> targetglobaladdr (which
is no longer used because globaladdr always needs to be legalized),
and some minor formatting fixes.

llvm-svn: 96716

llvm-svn: 96663

building the tree to represent them but not emitting 
table entries for them yet.

llvm-svn: 96617

relationship, this is a linear list relationship.

llvm-svn: 96561

field to MatcherNode.

llvm-svn: 96560

I'd like to eventually rip it out, but for now producing the
same selections as the old matcher is more important.

llvm-svn: 96458

variables.  Use the fancy OpNo variable instead of i,
which has the right index including chains.

llvm-svn: 96436

llvm-svn: 96433

for evaluating complex patterns.  Some cleanup has to happen before
this can be used though.

llvm-svn: 96419

use and only call IsProfitableToFold/IsLegalToFold on the load
being folded, like the old dagiselemitter does.  This 
substantially simplifies the code and improves opportunities for
sharing.

llvm-svn: 96368

build if enabled, it will fail with constness issues. I'll resolve 
these next.

llvm-svn: 96336

(isprofitable|islegal)tofold checks.

llvm-svn: 96331

produce a table based matcher instead of gobs of C++ Code.

Though it's not done yet, the shrinkage seems promising,
the table for the X86 ISel is 75K and still has a lot of 
optimization to come (compare to the ~1.5M of .o generated
the old way, much of which will go away).

The code is currently disabled by default (the #if 0 in
DAGISelEmitter.cpp).  When enabled it generates a dead
SelectCode2 function in the DAGISel Header which will
eventually replace SelectCode.

There is still a lot of stuff left to do, which are
documented with a trail of FIXMEs.

llvm-svn: 96215