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

slot they're recording into, no functionality change.

llvm-svn: 97433

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

immediate sizes into the opcode.

llvm-svn: 97423

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

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

it will populate.

llvm-svn: 97363

because I have to go on another detour first.

llvm-svn: 97362

the opcode name.  This gives the optimizer more semantic info.

llvm-svn: 97346

llvm-svn: 97219

instead of to have a chained series of scope nodes.  This makes
the generated table smaller, improves the efficiency of the
interpreter, and make the factoring optimization much more 
reasonable to implement.

llvm-svn: 97160

llvm-svn: 97097

llvm-svn: 97096

reflect what it does.  Switch the sense of the Next and the Check
arms to be more logical.  No functionality change.

llvm-svn: 97093

x86 table by 1200 bytes.

llvm-svn: 97053

llvm-svn: 97047

the old one around for comparative purposes: have the
ENABLE_NEW_ISEL #define (which is not enabled on mainline) stop
emitting the old isel at all, yay for build time win.

llvm-svn: 97033

the new isel: fold movechild+record+moveparent into a
single recordchild N node.  This shrinks the X86 table
from 125443 to 117502 bytes.

llvm-svn: 97031

internal nodes with flag results.  Record these with a new 
OPC_MarkFlagResults opcode and use this to update the interior
nodes' flag results properly.  This fixes CodeGen/X86/i256-add.ll
with the new isel.

llvm-svn: 97021

llvm-svn: 96845

VBR encoding for the insanity being perpetrated by the spu backend. 

llvm-svn: 96843

ridiculously ginormous patterns and need more than one byte
of displacement for encodings.  This fixes CellSPU/fdiv.ll.
SPU is still doing something else ridiculous though.

llvm-svn: 96833

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

llvm-svn: 96814

llvm-svn: 96730

With this, the matcher actually works reasonably well, but
crashes on larger examples in the scheduler.

llvm-svn: 96727

body before the push.

llvm-svn: 96726

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

Nothing real here yet.

llvm-svn: 96575

relationship, this is a linear list relationship.

llvm-svn: 96561

field to MatcherNode.

llvm-svn: 96560

llvm-svn: 96464

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

llvm-svn: 96433

llvm-svn: 96422