1) Assign stack slots to new temporaries.
  2) Don't insert an interval into the return vector more than once.

llvm-svn: 54956

  1) Remove an incorrect assertion.
  2) Set the stack slot weight properly.
  3) Resize the VirtRegMap when needed.

llvm-svn: 54949

llvm-svn: 54939

llvm-svn: 54930

Resurrect some ancient code to add spill ranges without attempting folding, remat, or splitting.  This code has been updated to current APIs
in so far as it compiles and, in theory, works, but does not take advantage of recent advancements.  For instance, it could be improved by using
MachineRegisterInfo::use_iterator.

llvm-svn: 54924

hoisting out some "test" and "cmp" instructions. This was obvious badness.

llvm-svn: 54908

llvm-svn: 54902

llvm-svn: 54901

In particular, Collector was confusing to implementors. Several
thought that this compile-time class was the place to implement
their runtime GC heap. Of course, it doesn't even exist at runtime.
Specifically, the renames are:

  Collector               -> GCStrategy
  CollectorMetadata       -> GCFunctionInfo
  CollectorModuleMetadata -> GCModuleInfo
  CollectorRegistry       -> GCRegistry
  Function::getCollector  -> getGC (setGC, hasGC, clearGC)

Several accessors and nested types have also been renamed to be
consistent. These changes should be obvious.

llvm-svn: 54899

llvm-svn: 54895

llvm-svn: 54891

llvm-svn: 54885

llvm-svn: 54884

Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.

llvm-svn: 54881

Factor GC metadata table assembly generation out of Collector in preparation for splitting AsmPrinter into its own library.

llvm-svn: 54880

returning an std::string by value, it fills in a SmallString/SmallVector
passed in.  This significantly reduces string thrashing in some cases.

More specifically, this:
 - Adds an operator<< and a print method for APInt that allows you to 
   directly send them to an ostream.
 - Reimplements APInt::toString to be much simpler and more efficient
   algorithmically in addition to not thrashing strings quite as much.

This speeds up llvm-dis on kc++ by 7%, and may also slightly speed up the
asmprinter.  This also fixes a bug I introduced into the asmwriter in a
previous patch w.r.t. alias printing.

llvm-svn: 54873

Move SLEB/ULEB size calculation routines from AsmPrinter to TargetAsmInfo. This makes JIT asmprinter-free.

llvm-svn: 54843

Convert several std::vectors over to SmallVector, and use reserve() as appropriate for cases where std::vector is still used.

llvm-svn: 54820

llvm-svn: 54810

llvm-svn: 54807

Convert uses of std::vector in TargetInstrInfo to SmallVector.  This change had to be propoagated down into all the targets and up into all clients of this API.

llvm-svn: 54802

llvm-svn: 54793

llvm-svn: 54787

llvm-svn: 54784

subregister query, and by increasing the size of the subregister hashtable so
that there are fewer collisions.

llvm-svn: 54781

llvm-svn: 54780

llvm-svn: 54770

can have a non-negative result; for example, -16%16 is 0. Also,
clarify the related comments. This fixes PR2670.

llvm-svn: 54767

llvm-svn: 54766

llvm-svn: 54765

non-constant indices. Only a few of the peephole checks require
a constant index.

llvm-svn: 54764

Make the allocation of LiveIntervals explicit, rather than holding them in the r2iMap_ by value.  This will prevent references to them from being invalidated
if the map is changed.

llvm-svn: 54763

the comments in FastISelEmitter.cpp for details on what this is.
This is currently experimental and unusable.

llvm-svn: 54751

room for the new FastISel instruction selection code.

llvm-svn: 54749

llvm-svn: 54742

2) Conditionalize temporary insertion if we don't need it.

llvm-svn: 54741

llvm-svn: 54688

of stack objects. This fixes PR2656.

llvm-svn: 54646

llvm-svn: 54574

names. This can save a lot of allocations if you aren't going to be
looking at the output.

llvm-svn: 54546