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

llvm-svn: 54879

llvm-svn: 54878

llvm-svn: 54877

the predicate.

Also, make this optz'n apply in more cases where it's safe to do so.

llvm-svn: 54876

llvm-svn: 54875

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

llvm-svn: 54869

speeds up release-asserts llvm-dis on kc++ from 1.86s to 1.04s (~79%)

llvm-svn: 54868

llvm-svn: 54866

a simple adaptor class to give raw output capabilities to 
something that wants to write to an ostream.

llvm-svn: 54865

llvm-svn: 54863

llvm-svn: 54857

can *only* output data (no seeking, reading, etc).  This is adapted from the
clang "-E outputter", and is roughly 10% faster than stdio on darwin and 30%
(or more) faster than std::ostream.

llvm-svn: 54855

llvm-svn: 54847

llvm-svn: 54846

llvm-svn: 54845

llvm-svn: 54844

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

llvm-svn: 54843

Reduce heap trashing due to std::string construction / concatenation via caching of section flags string representations

llvm-svn: 54842

Remove GCSE, ValueNumbering, and LoadValueNumbering.  These have been deprecated for almost a year; it's finally time for them to go away.

llvm-svn: 54822

llvm-svn: 54821

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

llvm-svn: 54820

instcombine among other things.

llvm-svn: 54814

llvm-svn: 54813

by ~10% on some testcases.

llvm-svn: 54811

llvm-svn: 54810

llvm-svn: 54807

llvm-svn: 54806

The loop-deletion pass does not preserve dom frontier, which is required by
loop-index-split. When the PM checks dom frontier for loop-index-split, it has
already verified that lcssa is availalble. However, new dom frontier forces new
loop pass manager, which does not  have lcssa yet.

The PM should recheck availability of required analysis passes in such cases.

llvm-svn: 54805

llvm-svn: 54804

llvm-svn: 54803

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

element inserts with non-constant indices. This fixes
CodeGen/X86/vector-variable-idx.ll on machines that
have SSE4.1.

llvm-svn: 54801

llvm-svn: 54793

llvm-svn: 54792

llvm-svn: 54787

llvm-svn: 54786

llvm-svn: 54785