Value::setName, which is no longer virtual.

llvm-svn: 20464

llvm-svn: 20463

llvm-svn: 20462

llvm-svn: 20461

llvm-svn: 20460

llvm-svn: 20459

llvm-svn: 20458

llvm-svn: 20455

llvm-svn: 20453

sparc, and testcase Regression/Transforms/InstCombine/2005-03-04-ShiftOverflow.ll

llvm-svn: 20445

llvm-svn: 20442

llvm-svn: 20436

fix FCMOVxx typo, set rem and div to hardcode target reg to be the same as the one the assembler uese, update ISel to put values in regs used by assembler for rem and div

llvm-svn: 20434

power of two.  This emphatically includes the zeroeth power of two.

llvm-svn: 20429

llvm-svn: 20425

llvm-svn: 20424

double test(double l1_X) {
  return (-l1_X);
}

instead of like this:

double test(double l1_X) {
  return (-0x0p+0 - l1_X);
}

llvm-svn: 20423

llvm-svn: 20422

  ltmp_0_7 = malloc(((unsigned )(&(((signed char (*)[784])/*NULL*/0)[1u]))));

Instead, just emit the literal constant, like this:

  ltmp_0_7 = malloc(784u);

This works around a bug in ICC 8.1 compiling the CBE generated code.  :-(

llvm-svn: 20415

to a "sizeof" expression.

llvm-svn: 20414

llvm-svn: 20412

llvm-svn: 20411

llvm-svn: 20410

llvm-svn: 20408

llvm-svn: 20407

Loop Strength Reduction.

llvm-svn: 20399

llvm-svn: 20397

explanation from IRC:

	|sabre|	I think it's an order of evaluation thing
	|sabre|	for me, the RHS of the assignment is evaluated first
	|sabre|	getTypeDescription checks to see if ConcreteTypeDescription[Ty] contains anything
	|sabre|	since it doesn't, it computes and returns the value
	|sabre|	this gets put into the map.
	|sabre|	For you, the LHS is evaluated first.
	|sabre|	Map[Ty] (aka ConcreteTypeDescriptions[Ty]) inserts an empty string into the map, returning a reference
	|sabre|	getTypeDesc then sees the empty string in the map
	|sabre|	and returns it
	|sabre|	bork :)

llvm-svn: 20394

  * Loop invariant code does not dominate the loop header, but rather
    the end of the loop preheader.

  * The base for a reduced GEP isn't a constant unless all of its
    operands (preceding the induction variable) are constant.

  * Allow induction variable elimination for the simple case after all.

Also made changes recommended by Chris for properly deleting
instructions.

llvm-svn: 20383

llvm-svn: 20382

llvm-svn: 20380

Justin Wick!

llvm-svn: 20378

llvm-svn: 20377

llvm-svn: 20376

llvm-svn: 20375

llvm-svn: 20372

for reasons explained in the comments, I also deactivated this code as it needs
more thought.

llvm-svn: 20367

llvm-svn: 20360

llvm-svn: 20358

llvm-svn: 20354