with a release-asserts build on x86-64-darwin10:

LLC Size:
Old: 15,426,852
New: 12,759,140  (down 2.7M)

LLI Size:
Old: 9,926,876
New: 8,864,292   (down 1.1M)

X86ISelDAGToDAG.o size:
Old: 1,401,232
New:   162,868   (down 1.3M)

Time to build X86ISelDAGToDAG.o:
Old: 67.147u 2.060s 1:09.78
New:  4.234u 0.387s 0:04.77

llvm-svn: 97475

llvm-svn: 97474

llvm-svn: 97473

llvm-svn: 97472

isel (defaults it to generate comments).
This reduces the size of the generated source file.

llvm-svn: 97470

OPC_SwitchOpcode to use a table lookup instead of having to go
through the interpreter for this.

llvm-svn: 97469

These two tests check whether oprimizer safely ignores @llvm.dbg.stoppoint intrinsic or not. This intrinsic is not used anymore.

llvm-svn: 97468

an APInt.

llvm-svn: 97467

This test checks whether LICM ignores @llvm.dbg.stoppoint intrinsics appropriately or not. Now, llvm does not use this intrinsic. Remove this test.

llvm-svn: 97466

llvm-svn: 97465

Remove this generic debug info intrinsic test. LLVM does not use this llvm.dbg.stoppoint intrinsic anymore. There are tests to check new implementation, which attaches location information directly with an instruction using metadata.

llvm-svn: 97464

by Micah Villmow for PR6335.

llvm-svn: 97461

llvm-svn: 97460

llvm-svn: 97459

llvm-svn: 97458

llvm-svn: 97457

llvm-svn: 97456

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