llvm-svn: 54819

instcombine among other things.

llvm-svn: 54814

llvm-svn: 54813

by ~10% on some testcases.

llvm-svn: 54811

llvm-svn: 54810

llvm-svn: 54809

llvm-svn: 54807

llvm-svn: 54806

The loop-deletion pass does not preserve dom frontier, which is required by
loop-index-split. When the PM checks dom frontier for loop-index-split, it has
already verified that lcssa is availalble. However, new dom frontier forces new
loop pass manager, which does not  have lcssa yet.

The PM should recheck availability of required analysis passes in such cases.

llvm-svn: 54805

llvm-svn: 54804

llvm-svn: 54803

Convert uses of std::vector in TargetInstrInfo to SmallVector.  This change had to be propoagated down into all the targets and up into all clients of this API.

llvm-svn: 54802

element inserts with non-constant indices. This fixes
CodeGen/X86/vector-variable-idx.ll on machines that
have SSE4.1.

llvm-svn: 54801

llvm-svn: 54793

llvm-svn: 54792

llvm-svn: 54789

llvm-svn: 54787

llvm-svn: 54786

llvm-svn: 54785

llvm-svn: 54784

subregister query, and by increasing the size of the subregister hashtable so
that there are fewer collisions.

llvm-svn: 54781

llvm-svn: 54780

invalidating the iterator by deleting the current use. This fixes a segfault on
64 bit linux reported in PR2675.

Also remove an unneeded if.

llvm-svn: 54778

llvm-svn: 54770

can have a non-negative result; for example, -16%16 is 0. Also,
clarify the related comments. This fixes PR2670.

llvm-svn: 54767

llvm-svn: 54766

llvm-svn: 54765

non-constant indices. Only a few of the peephole checks require
a constant index.

llvm-svn: 54764

Make the allocation of LiveIntervals explicit, rather than holding them in the r2iMap_ by value.  This will prevent references to them from being invalidated
if the map is changed.

llvm-svn: 54763

llvm-svn: 54761

track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.

llvm-svn: 54760

 - Creates uninitialized APInt. 
 - Prevents need for embedding arbitrary constants when used as an out
   parameter, for example.

llvm-svn: 54757

llvm-svn: 54756

llvm-svn: 54754

ptrtoint can be turned into a bitcast if the
integer is at least as wide as a pointer.

llvm-svn: 54752

the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.

llvm-svn: 54751

llvm-svn: 54750

room for the new FastISel instruction selection code.

llvm-svn: 54749

llvm-svn: 54745

llvm-svn: 54744