llvm-svn: 29648

doesn't significantly improve performance but it helps a small amount.

llvm-svn: 29642

speedup in isel time.

llvm-svn: 29640

llvm-svn: 29631

RegNodes, and ValueNodes maps into the CSEMap.

llvm-svn: 29626

llvm-svn: 29621

make a temporary vector.

llvm-svn: 29618

instead of a vector of operands.

llvm-svn: 29616

in the start of an array and a count of operands where applicable.  In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap.  In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.

I updated a lot of code calling getNode that takes a vector, but ran out of
time.  The rest of the code should be updated, and these methods should be
removed.

We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.

It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.

llvm-svn: 29566

method that took std::vector<SDOperand> to take a pointer to a first operand
and #operands.

This speeds up isel on kc++ by about 3%.

llvm-svn: 29561

eliminates a bunch of std::map's in the SelectionDAG, replacing them with a
home-grown hashtable.

This is still a work in progress: not all the maps have been moved over and the
hashtable never resizes.  That said, this still speeds up llc 20% on kimwitu++
with -fast -regalloc=local using a release build.

llvm-svn: 29550

llvm-svn: 29546

llvm-svn: 29545

also make it simpler.

llvm-svn: 29524

llvm-svn: 29511

llvm-svn: 29490

llvm-svn: 29489

- Tweak implementation to avoid using std::map.

llvm-svn: 29479

llvm-svn: 29471

scheduler creator.

llvm-svn: 29452

2. Added argument to instruction scheduler creators so the creators can do
special things.
3. Repaired target hazard code.
4. Misc.

More to follow.

llvm-svn: 29450

llvm-svn: 29436

llvm-svn: 29434

llvm-svn: 29431

llvm-svn: 29422

fold them.  This correctly truncates constants that are too large for the
destination slot and makes the code easier to understand.  This fixes PR853
and Regression/CodeGen/X86/2006-07-28-AsmPrint-Long-As-Pointer.ll

llvm-svn: 29408

llvm-svn: 29373

        # InlineAsm Start

        # InlineAsm End

llvm-svn: 29372

llvm-svn: 29360

llvm-svn: 29347

llvm-svn: 29343

llvm-svn: 29337

llvm-svn: 29324

llvm-svn: 29318

This manifested itself as really long time to compile
Regression/CodeGen/Generic/2003-05-28-ManyArgs.ll on ppc.
This is PR847.

llvm-svn: 29313

1. Move IncludeFile.h to System library
2. Move IncludeFile.cpp to System library
3. #1 and #2 required to prevent cyclic library dependencies for libSystem
4. Convert all existing uses of Support/IncludeFile.h to System/IncludeFile.h
5. Add IncludeFile support to various lib/System classes.
6. Add new lib/System classes to LinkAllVMCore.h
All this in an attempt to pull in lib/System to what's required for VMCore

llvm-svn: 29287

llvm-svn: 29277

llvm-svn: 29250

llvm-svn: 29249

If a shuffle is a splat, check if the argument is a build_vector with all elements being the same. If so, return the argument.

llvm-svn: 29242