isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223

llvm-svn: 96221

llvm-svn: 96220

name, test whether the SCEV itself is that temporary symbolic name,
in addition to checking whether the symbolic name appears as a
possibly-indirect operand.

llvm-svn: 96216

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

many other natural things.

llvm-svn: 96214

packing somewhat densely is better than not.

llvm-svn: 96213

llvm-svn: 96212

This behaviour must be configurable.

llvm-svn: 96210

which may call write_impl on things that are not the usual buffer.

llvm-svn: 96209

 OS.PadToColumn(42) << "foo";

llvm-svn: 96208

llvm-svn: 96207

insert location has become an "inserted" instruction since the time
it was saved. If so, advance to the first non-"inserted" instruction.

llvm-svn: 96203

llvm-svn: 96199

on TreePatternNode to be methods on TreePatternNode.

llvm-svn: 96197

in hte generated dag isel fil.

llvm-svn: 96193

that predated -fast-isel which attempted to speed up the dag pattern
matchers at -O0.  Since fast-isel is around, this is basically 
obsolete and removing it shrinks the generated dag isels.

llvm-svn: 96188

llvm-svn: 96187

llvm-svn: 96186

llvm-svn: 96179

llvm-svn: 96178

with multiplication by constants distributed through, occasionally
those subexpressions can include both x and -x. For now, if this
condition is discovered within LSR, just prune such cases away,
as they won't be profitable. This fixes a "zero allocated in a
base register" assertion failure.

llvm-svn: 96177

1. restore these across direct/indirect calls.
2. restore pagesel for any macros with gotos.

llvm-svn: 96175

llvm-svn: 96174

llvm-svn: 96172

Otherwise AT&T asm printer is used with non-compatible MCAsmInfo and
there is no way to override this behaviour.

llvm-svn: 96165

as suggested by Bob Wilson.

llvm-svn: 96153

the no-TLI case. But it should still default to declining the
transformation.

llvm-svn: 96152

current insertion point, advance the current insertion point.
This avoids a use-before-def situation in a testcase extracted
from clang which is difficult to reduce to a reasonable-sized
regression test.

llvm-svn: 96151

to override anything from the parent class.

llvm-svn: 96150

intended to be subclassed.

llvm-svn: 96149

because profitability can't be sufficiently approximated.

llvm-svn: 96148

llvm-svn: 96143

from opt.

llvm-svn: 96135

odd offsets since the bitcasted pointer size and the offset pointer
size are going to be different types for the GEP vs base object.

llvm-svn: 96134

Some tools do not like the '-option parameter' form. Should this be
configurable?

llvm-svn: 96130

We really need a conditional compilation mechanism...

llvm-svn: 96129

llvm-svn: 96128

llvm-svn: 96127

llvm-svn: 96126