llvm-svn: 37792

llvm-svn: 37790

llvm-svn: 37789

llvm-svn: 37788

llvm-svn: 37786

vectors are split down to single elements as part of legalization.

llvm-svn: 37785

llvm-svn: 37784

Add support for performing GVNPRE on select instructions.  This fixes test/Transforms/GVNPRE/select.ll.

llvm-svn: 37783

illegal value type will be transformed to, for code that needs the
register type after all transformations instead of just after the first
transformation.

Factor out the code that uses this information to do copy-from-regs and
copy-to-regs for various purposes into separate functions so that they
are done consistently.

llvm-svn: 37781

llvm-svn: 37778

llvm-svn: 37776

loop.
- Avoid loop unswich for loop header branch.
- While cloning dominators fix typo and handle self dominating blocks.

llvm-svn: 37772

llvm-svn: 37771

to loop unswitch candidate for the loop.

llvm-svn: 37770

Anton's testcase from 35.5s to 34.7s.

llvm-svn: 37769

llvm-svn: 37768

llvm-svn: 37765

llvm-svn: 37764

Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block.

llvm-svn: 37763

Use cached information that has already been computed to make clean() simpler and faster.  This is a small speedup on most cases.

llvm-svn: 37761

This saves many lines of code duplication.  No functionality change.

llvm-svn: 37759

llvm-svn: 37758

llvm-svn: 37756

to compute the number and type of registers needed for vector values
instead of computing it manually. This fixes PR1529.

llvm-svn: 37755

with single-element vectors.

llvm-svn: 37752

llvm-svn: 37751

the SPASS miscompilation)

llvm-svn: 37750

llvm-svn: 37749

quality hit. will look at this soon.

llvm-svn: 37748

some issues)

llvm-svn: 37747

llvm-svn: 37746

llvm-svn: 37745

llvm-svn: 37743

2. When calculating ANTIC_IN, only iterate the changed blocks.  For most average
inputs this is a small speedup, but for cases with unusual CFGs, this can be a significant win.

llvm-svn: 37742

llvm-svn: 37740

Properly handle kills of a physical register which has sub-registers that are read by later instructions.

llvm-svn: 37739

llvm-svn: 37737

llvm-svn: 37731

instruction flag, and use the flag along with a virtual member function
hook for targets to override if there are instructions that are only
trivially rematerializable with specific operands (i.e. constant pool
loads).

llvm-svn: 37728

llvm-svn: 37725