llvm-svn: 120817

llvm-svn: 120816

Try to fix building on the wayback machine.

llvm-svn: 120801

llvm-svn: 120800

llvm-svn: 120792

llvm-svn: 120791

llvm-svn: 120790

llvm-svn: 120777

llvm-svn: 120776

instead of toStringRef. The file system APIs need c strings.

llvm-svn: 120601

llvm-svn: 120600

file creation APIs aren't implemented.

llvm-svn: 120593

setAllBits(), setBit(unsigned), etc.

llvm-svn: 120564

llvm-svn: 120560

Support/PathV2: Add has_{root_path,root_name,root_directory,parent_path,filename,stem,extension} implementation.

llvm-svn: 120559

llvm-svn: 120550

llvm-svn: 120547

llvm-svn: 120546

llvm-svn: 120539

is fine since isn't really necessary to check isValid there anyway.

llvm-svn: 120538

llvm-svn: 120514

llvm-svn: 120513

llvm-svn: 120496

llvm-svn: 120495

llvm-svn: 120413

llvm-svn: 120329

from LLVM forever:

grep -lR "llvm/System" * | grep -v .svn | xargs sed -ie 's#llvm/System#llvm/Support#g'

llvm-svn: 120314

llvm-svn: 120301

llvm-svn: 120298

static methods that return a new APInt.

llvm-svn: 120261

llvm-svn: 120223

llvm-svn: 120200

llvm-svn: 120166

The path also holds a reference to the root node, and that allows important
iterator accessors like start() and stop() to have no conditional code. (When
the compiler is clever enough to remove it.)

llvm-svn: 120165

file descriptor into a MemoryBuffer (and closes the FD).

llvm-svn: 120065

documented and only used by some clang stuff I just removed.

llvm-svn: 120002

llvm-svn: 119842

This is a sorted interval map data structure for small keys and values with
automatic coalescing and bidirectional iteration over coalesced intervals.

Except for coalescing intervals, it provides similar functionality to std::map.
It is however much more compact for small keys and values, and hopefully faster
too.

The container object itself can hold the first few intervals without any
allocations, then it switches to a cache conscious B+-tree representation. A
recycling allocator can be shared between many containers, even between
containers holding different types.

The IntervalMap is initially intended to be used with SlotIndex intervals for:

- Backing store for LiveIntervalUnion that is smaller and faster than std::set.

- Backing store for LiveInterval with less overhead than std::vector for typical
  intervals and O(N log N) merging of large intervals. 99% of virtual registers
  need 4 entries or less and would benefit from the small object optimization.

- Backing store for LiveDebugVariable which doesn't exist yet, but will track
  debug variables during register allocation.

This is a work in progress. Missing items are:

- Performance metrics.
- erase().
- insert() shrinkage.
- clear().
- More performance metrics.
- Simplification and detemplatization.

llvm-svn: 119787

This reverts r119772.

llvm-svn: 119773

This is a sorted interval map data structure for small keys and values with
automatic coalescing and bidirectional iteration over coalesced intervals.

Except for coalescing intervals, it provides similar functionality to std::map.
It is however much more compact for small keys and values, and hopefully faster
too.

The container object itself can hold the first few intervals without any
allocations, then it switches to a cache conscious B+-tree representation. A
recycling allocator can be shared between many containers, even between
containers holding different types.

The IntervalMap is initially intended to be used with SlotIndex intervals for:

- Backing store for LiveIntervalUnion that is smaller and faster than std::set.

- Backing store for LiveInterval with less overhead than std::vector for typical
  intervals and O(N log N) merging of large intervals. 99% of virtual registers
  need 4 entries or less and would benefit from the small object optimization.

- Backing store for LiveDebugVariable which doesn't exist yet, but will track
  debug variables during register allocation.

This is a work in progress. Missing items are:

- Performance metrics.
- erase().
- insert() shrinkage.
- clear().
- More performance metrics.
- Simplification and detemplatization.

llvm-svn: 119772