extension register.

llvm-svn: 116970

llvm-svn: 116962

registers.

llvm-svn: 116961

when it means there is no specific clobber instruction.

llvm-svn: 116960

Attempt to fix valgrind complaining about (benign) leaks in pass registration by having PassRegistry
delete PassInfo objects that were created using new-style initialization.

llvm-svn: 116959

llvm-svn: 116958

llvm-svn: 116957

- Initial register pressure in the loop should be all the live defs into the
  loop. Not just those from loop preheader which is often empty.
- When an instruction is hoisted, update register pressure from loop preheader
  to the original BB.
- Treat only use of a virtual register as kill since the code is still SSA.

llvm-svn: 116956

llvm-svn: 116955

llvm-svn: 116954

llvm-svn: 116953

llvm-svn: 116951

types are no longer Legal on X86, we don't need it.
No functional change.  8499854.

llvm-svn: 116947

operand, also check if subregisters are killed.

Add <imp-def> operands for subregisters that remain alive after a super register
is killed.

I don't have a testcase for this that reproduces on trunk. <rdar://problem/8441758>

llvm-svn: 116940

llvm-svn: 116932

llvm-svn: 116927

A recent commit to clang exposed a bug in the Win32 Path code. This is a
minimal fix for it.

llvm-svn: 116925

use it.

llvm-svn: 116920

#includes in the process.

llvm-svn: 116919

llvm-svn: 116915

llvm-svn: 116910

llvm-svn: 116909

A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.

llvm-svn: 116905

llvm-svn: 116903

llvm-svn: 116899

llvm-svn: 116897

llvm-svn: 116890

llvm-svn: 116886

llvm-svn: 116883

llvm-svn: 116880

setup they require. Use this for ARM/Darwin to rematerialize the base
pointer from the frame pointer when required. rdar://8564268

llvm-svn: 116879

it doesn't have a special relationship with BasicAliasAnalysis
anymore.

llvm-svn: 116876

uint64_t, plus fixes for places I missed before.

llvm-svn: 116875

llvm-svn: 116867

llvm-svn: 116863

llvm-svn: 116858

Pull an unsigned out of the Contents union such that it has the same size as two
pointers and no padding.

Arrange members such that the Contents union and all pointers can be 8-byte
aligned without padding.

This speeds up code generation by 0.8% on a 64-bit host. 32-bit hosts should be
unaffected.

llvm-svn: 116857

they do not also require them.  This allows us to reduce inter-pass linkage
dependencies.

llvm-svn: 116854

integers by default, and remove the controlling flag, now
that LICM will hoist such vdup's.  8003375.

llvm-svn: 116852

llvm-svn: 116851