Implement the MoreHelp utility that calls a function to printmore help information if the MoreHelp global is not null.

llvm-svn: 17774

llvm-svn: 17773

llvm-svn: 17772

llvm-svn: 17771

llvm-svn: 17770

llvm-svn: 17769

llvm-svn: 17768

Completely rewritten to allow reading of archives and symbol table lookup in a more efficient manner.

llvm-svn: 17767

llvm-svn: 17766

llvm-svn: 17765

llvm-svn: 17764

llvm-svn: 17763

*Make naming convention consistent.*Add convertion to/from Unix Epoch time.*Add ability to convert to readable string.

llvm-svn: 17762

llvm-svn: 17761

*Put the StatusInfo type in the right section. *Provide the ability to rename a file.*Provide the ability to get/set stat(2) information.*Provide the ability to identify LLVM file types.

llvm-svn: 17760

llvm-svn: 17759

llvm-svn: 17758

llvm-svn: 17757

Add the MoreHelp function pointer. If non-null, this specifies a function to be called to print out additional help information

llvm-svn: 17756

Remove ReadArchiveFile (functionality moved to Archive.h). Add an alternate form for GetBytecodeSymbols.

llvm-svn: 17755

llvm-svn: 17754

llvm-svn: 17753

llvm-svn: 17752

llvm-svn: 17751

llvm-svn: 17750

llvm-svn: 17749

llvm-svn: 17748

llvm-svn: 17747

value.  This allows us to turn more globals into constants and eliminate them.
This patch implements GlobalOpt/load-store-global.llx.

Note that this patch speeds up 255.vortex from:

Output/255.vortex.out-cbe.time:program 7.640000
Output/255.vortex.out-llc.time:program 9.810000

to:

Output/255.vortex.out-cbe.time:program 7.250000
Output/255.vortex.out-llc.time:program 9.490000

Which isn't bad at all!

llvm-svn: 17746

llvm-svn: 17745

llvm-svn: 17744

llvm-svn: 17743

llvm-svn: 17742

If this happens, detect it early instead of relying on instcombine to notice
it later.  This can be a big speedup, because PHI nodes can have many
incoming values.

llvm-svn: 17741

This exposes subsequent optimization possiblities and reduces code size.
This triggers 1423 times in spec.

llvm-svn: 17740

Note that this reduces code size anyway (as well as making further
optimizations simpler) so it's always a win.

llvm-svn: 17739

llvm-svn: 17738

llvm-svn: 17737

  %X = alloca ...
  %Y = alloca ...
    X == Y

into false.  This allows us to simplify some stuff in eon (and probably
many other C++ programs) where operator= was checking for self assignment.
Folding this allows us to SROA several additional structs.

llvm-svn: 17735

llvm-svn: 17734