Allow target to place 2-address pass inserted copies in better spots. Thumb2 will use this to try to avoid breaking up IT blocks.

llvm-svn: 105745

options.
 - This matches the intent of the .td files, and will simplify alias handling.
 - PR7321.

llvm-svn: 105744

llvm-svn: 105743

   %reg1025 = <sext> %reg1024
    ...
   %reg1026 = SUBREG_TO_REG 0, %reg1024, 4

into this:

   %reg1025 = <sext> %reg1024
    ...
   %reg1027 = EXTRACT_SUBREG %reg1025, 4
   %reg1026 = SUBREG_TO_REG 0, %reg1027, 4

The problem here is that SUBREG_TO_REG is there to assert that an implicit zext
occurs. It doesn't insert a zext instruction. If we allow the EXTRACT_SUBREG
here, it will give us the value after the <sext>, not the original value of
%reg1024 before <sext>.

llvm-svn: 105741

llvm-svn: 105740

they can be independent of the exact option that created them.

llvm-svn: 105739

possible.

llvm-svn: 105738

llvm-svn: 105737

llvm-svn: 105736

  is used to assert that an *implicit* zext is performed.

- Fix grammar-o in INSERT_SUBREG. (required reformatting)

llvm-svn: 105735

Make note about how to handle the dozen or so multiply by scalar ops.

llvm-svn: 105734

This will be used primarily by NEON shift intrinsics.

llvm-svn: 105733

green. Dan, please revert this once the real problem is fixed.

llvm-svn: 105732

refer to the "external node" instead.

llvm-svn: 105731

callgraph SCC's.  This makes it match what the node itself would print.  Also,
"indirect callgraph node" doesn't make sense - it has nothing particularly to
do with indirect calls.

llvm-svn: 105730

llvm-svn: 105729

llvm-svn: 105726

Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it can be reused from PartialSpecializationCost

llvm-svn: 105725

llvm-svn: 105724

llvm-svn: 105723

We default to inserting to lane 0.

llvm-svn: 105722

llvm-svn: 105721

llvm-svn: 105720

llvm-svn: 105719

llvm-svn: 105718

this page.

llvm-svn: 105717

llvm-svn: 105716

llvm-svn: 105715

llvm-svn: 105714

llvm-svn: 105713

llvm-svn: 105712

llvm-svn: 105711

random load/store, rather than crashing llc.

llvm-svn: 105710

new design discussed on cfe-dev, with further steps in that direction to come.
It is already much more complete than the previous visitor.

Patch by Zhanyong and Craig with 80 column wraps and one missing declaration
added by me.

llvm-svn: 105709

llvm-svn: 105708

OK, we should only point to PROJECT_DIR/include for the header search paths since the includes specify lldb/API/etc. This is temporary until the final install location is decided upon for the headers.

llvm-svn: 105707

llvm-svn: 105706

llvm-svn: 105705

llvm-svn: 105704

llvm-svn: 105703