implementation.

llvm-svn: 80493

workslist and is set to insert new instructions before the current one.
Convert a bunch of stuff that used to call InsertNewInstBefore over to
use it, greatly simplifying code and making it more natural.

There is still a lot more to go, but this is a good start.

llvm-svn: 80492

llvm-svn: 80490

if the operand is not an instruction.

Simplify most uses of AddOperandsToWorkList to use AddValue and
inline it into the one remaining callsite.

llvm-svn: 80488

argument stronger typed.

llvm-svn: 80487

former looks too much like AddUsersToWorkList and keeps
confusing me.

Remove AddSoonDeadInstToWorklist and change its two callers
to do the same thing in a simpler way.

llvm-svn: 80486

llvm-svn: 80485

- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

llvm-svn: 80484

into their callers.  simplify ReplaceInstUsesWith.  Make
EraseInstFromFunction only add operands to the worklist if
there aren't too many of them (this was a scalability win
for crazy programs that was only infrequently enforced).
Switch more code to using EraseInstFromFunction instead of
duplicating it inline.  Change some fcmp/icmp optimizations
to modify fcmp/icmp in place instead of creating a new one
and deleting the old one just to change the predicate.

llvm-svn: 80483

llvm-svn: 80482

llvm-svn: 80481

llvm-svn: 80480

hook out of the main IRBuilder class to allow clients to
override it.

llvm-svn: 80479

other places.

llvm-svn: 80478

llvm-svn: 80477

llvm-svn: 80476

does constant folding of gep's: this is already handled in
a more general way.

No functionality change.

llvm-svn: 80475

to see what queries are being made by a transformation, we might as well
default to printing them.

llvm-svn: 80474

llvm-svn: 80466

llvm-svn: 80454

llvm-svn: 80453

llvm-svn: 80452

llvm-svn: 80451

llvm-svn: 80450

a register to 0. This fixes PR4814.

llvm-svn: 80445

llvm-svn: 80431

llvm-svn: 80429

  encodings.
- Make some of the values emitted by the FDEs dependent upon the pointer
  size. This is in line with how GCC does things. And it has the benefit of
  working for Darwin in 64-bit mode now.

llvm-svn: 80428

doesn't handle all values of the formatting. Those can be added as needed.

llvm-svn: 80427

inferencing.  As far as I can tell, these are equivalent to the existing
MVT::fAny, iAny and vAny types, and having both of them makes it harder
to reason about and modify the type inferencing code.

The specific problem in PR4795 occurs when updating a vAny type to be fAny
or iAny, or vice versa.  Both iAny and fAny include vector types -- they
intersect with the set of types represented by vAny.  When merging them,
choose fAny/iAny to represent the intersection.  This is not perfect, since
fAny/iAny also include scalar types, but it is good enough for TableGen's
type inferencing.

llvm-svn: 80423

and make the reference pointer size as it should be.

Fixes an abort on a testcase derived from libunwind's personality
test in 64-bit.

llvm-svn: 80414

GlobalVariables to MDNodes.

llvm-svn: 80411

llvm-svn: 80410

llvm-svn: 80409

llvm-svn: 80408

Use MDNodes to encode debug info in llvm IR.

llvm-svn: 80406

Let Darwin linker auto-synthesize stubs and lazy-pointers. This deletes a bunch of nasty code in ARM asm printer.

llvm-svn: 80404

llvm-svn: 80401

llvm-ld shell wrapper script in the archive, not the relinked object!

Also, rename the temp file to avoid conflicts.

llvm-svn: 80373

See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20090824/085828.html

llvm-svn: 80372