and the testcase needs improvement.

llvm-svn: 96265

called by jump threading.

llvm-svn: 96263

IsLegalToFold and IsProfitableToFold. The generic version of the later simply checks whether the folding candidate has a single use.

This allows the target isel routines more flexibility in deciding whether folding makes sense. The specific case we are interested in is folding constant pool loads with multiple uses.

llvm-svn: 96255

Add support for emitting non-temporal stores for DAGs marked
non-temporal.

llvm-svn: 96241

Add non-temporal flags and remove an assumption of default arguments.

llvm-svn: 96240

Remove an assumption of default arguments.  This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96239

change to SelectionDAG build APIs.

llvm-svn: 96238

change to SelectionDAG build APIs.

llvm-svn: 96237

change to SelectionDAG build APIs.

llvm-svn: 96236

change to SelectionDAG build APIs.

llvm-svn: 96235

change to SelectionDAG build APIs.

llvm-svn: 96234

change to SelectionDAG build APIs.

llvm-svn: 96233

change to SelectionDAG build APIs.

llvm-svn: 96232

change to SelectionDAG build APIs.

llvm-svn: 96231

change to SelectionDAG build APIs.

llvm-svn: 96230

change to SelectionDAG build APIs.

llvm-svn: 96229

Remove an assumption of default arguments.  This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96228

Remove an assumption of default arguments.  This is in anticipation of a
change to SelectionDAG build APIs.

llvm-svn: 96227

Add non-temporal flags to MachineMemOperand.

llvm-svn: 96226

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

llvm-svn: 96223

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

llvm-svn: 96212

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

in hte generated dag isel fil.

llvm-svn: 96193

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

because profitability can't be sufficiently approximated.

llvm-svn: 96148