instruction creation. No support yet for instruction introspection.

Also eliminated allocas from the Ocaml bindings for portability,
and avoided unnecessary casts.

llvm-svn: 42367

llvm-svn: 42359

llvm-svn: 42357

llvm-svn: 42356

llvm-svn: 42355

llvm-svn: 42354

llvm-svn: 42350

llvm-svn: 42349

llvm-svn: 42348

llvm-svn: 42347

Tested with "make check"!

llvm-svn: 42346

llvm-svn: 42345

llvm-svn: 42344

llvm-svn: 42343

llvm-svn: 42342

llvm-svn: 42341

llvm-svn: 42338

llvm-svn: 42335

llvm-svn: 42333

llvm-svn: 42332

llvm-svn: 42331

llvm-svn: 42329

cases with undefined behavior.

llvm-svn: 42328

llvm-svn: 42324

llvm-svn: 42323

llvm-svn: 42322

llvm-svn: 42318

llvm-svn: 42316

llvm-svn: 42314

llvm-svn: 42313

llvm-svn: 42312

This fixes PR714.

llvm-svn: 42309

both results with a single div or idiv instruction. This uses new X86ISD
nodes for DIV and IDIV which are introduced during the legalize phase
so that the SelectionDAG's CSE can automatically eliminate redundant
computations.

llvm-svn: 42308

llvm-svn: 42306

llvm-svn: 42303

llvm-svn: 42302

doh.. 

llvm-svn: 42300

for (i=A; i<N; i++) {
  if (i < X && i > Y)
    do_something();
}

is transformed into

U=min(N,X); L=max(A,Y);
for (i=L;i<U;i++)
  do_somethihg();                            

llvm-svn: 42299

of zero, infinity, and NaNs.

llvm-svn: 42298

the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.

llvm-svn: 42297