Reorganization: Move the Spiller out of VirtRegMap.cpp into its own files.  No (intended) functionality change.

llvm-svn: 66720

floating point instructions that are explicitly specified by the user.

llvm-svn: 66719

allocations.  Apparently the assumption is there is an
instruction (terminator?) following the allocation so I
am allowing the same assumption.

llvm-svn: 66716

My last coalescer fix introduced a subtler one. It's aborting a commuting optimization too late and left the live intervals to be out of sync with instructions. This fixes 8b10b.

llvm-svn: 66715

for a dependency, not terminate the search.

llvm-svn: 66709

llvm-svn: 66708

functionality change.

llvm-svn: 66700

llvm-svn: 66699

llvm-svn: 66697

llvm-svn: 66692

linkage, so remove it.

llvm-svn: 66690

llvm-svn: 66688

llvm-svn: 66687

This fixes fallout from recent PIC/delibtoolize changes and unbreaks
build on cygming.

llvm-svn: 66686

llvm-svn: 66684

llvm-svn: 66663

llvm-svn: 66660

llvm-svn: 66653

linkage: this linkage type only applies to declarations,
but ODR is only relevant to globals with definitions.

llvm-svn: 66650

variety.  For example, an i64 div might turn into a call to __divdi3 during
legalization.

llvm-svn: 66646

llvm-svn: 66645

llvm-svn: 66642

alignment of the generated constant pool entry to the
desired alignment of a type.  If we don't do this, we end up
trying to do movsd from 4-byte alignment memory.  This fixes
450.soplex and 456.hmmer.

llvm-svn: 66641

llvm-svn: 66611

1. Use the same value# to represent unknown values being merged into sub-registers.
2. When coalescer commute an instruction and the destination is a physical register, update its sub-registers by merging in the extended ranges.

llvm-svn: 66610

llvm-svn: 66607

llvm-svn: 66602

llvm-svn: 66595

llvm-svn: 66594

This is a preliminary to changes to come. No intended functionality change.

llvm-svn: 66593

llvm-svn: 66591

llvm-svn: 66589

whether a callee to be inlined is a leaf.

llvm-svn: 66588

llvm-svn: 66586

- Remove unused method.

llvm-svn: 66585

  the untimed version of getOrCreateSourceID. getOrCreateSourceID calls
  GetOrCreateSourceID, of course.

- Move some methods into the "private" section. Constify at least one method.

- General clean-ups.

llvm-svn: 66582

llvm-svn: 66581

writing individually.

llvm-svn: 66577

another instcombine pass if we weren't going to make
one without debug info.

llvm-svn: 66576

llvm-svn: 66574