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History

Daniel Dunbar 4771afe104 Lift addAssemblyEmitter into LLVMTargetMachine. - No functionality change. llvm-svn: 75859		2009-07-15 23:34:19 +00:00
..
AsmPrinter	Remove old style hacks to register AsmPrinter into TargetMachine.	2009-07-15 22:01:32 +00:00
TargetInfo	Add TargetInfo libraries for all targets.	2009-07-15 06:35:19 +00:00
CMakeLists.txt	CMake build fixes, from Xerxes Ranby	2009-07-02 18:53:52 +00:00
IA64.h	Reapply TargetRegistry refactoring commits.	2009-07-15 20:24:03 +00:00
IA64.td
IA64Bundling.cpp
IA64InstrBuilder.h
IA64InstrFormats.td
IA64InstrInfo.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +00:00
IA64InstrInfo.h
IA64InstrInfo.td
IA64ISelDAGToDAG.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +00:00
IA64ISelLowering.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +00:00
IA64ISelLowering.h	Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed arguments in a vararg call.	2009-07-03 06:44:53 +00:00
IA64MachineFunctionInfo.h
IA64RegisterInfo.cpp	llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.	2009-07-14 16:55:14 +00:00
IA64RegisterInfo.h
IA64RegisterInfo.td
IA64Subtarget.cpp
IA64Subtarget.h
IA64TargetAsmInfo.cpp
IA64TargetAsmInfo.h
IA64TargetMachine.cpp	Lift addAssemblyEmitter into LLVMTargetMachine.	2009-07-15 23:34:19 +00:00
IA64TargetMachine.h	Lift addAssemblyEmitter into LLVMTargetMachine.	2009-07-15 23:34:19 +00:00
Makefile	Add TargetInfo libraries for all targets.	2009-07-15 06:35:19 +00:00
README

README

TODO:
  - Un-bitrot ISel
  - Hook up If-Conversion a la ARM target
  - Hook up all branch analysis functions
  - Instruction scheduling
  - Bundling
  - Dynamic Optimization
  - Testing and bugfixing
  - stop passing FP args in both FP *and* integer regs when not required
  - allocate low (nonstacked) registers more aggressively
  - clean up and thoroughly test the isel patterns.
  - fix stacked register allocation order: (for readability) we don't want
    the out? registers being the first ones used
  - fix up floating point
    (nb http://gcc.gnu.org/wiki?pagename=ia64%20floating%20point )
  - bundling!
    (we will avoid the mess that is:
     http://gcc.gnu.org/ml/gcc/2003-12/msg00832.html )
  - instruction scheduling (hmmmm! ;)
  - counted loop support
  - make integer + FP mul/div more clever (we have fixed pseudocode atm)
  - track and use comparison complements

INFO:
  - we are strictly LP64 here, no support for ILP32 on HP-UX. Linux users
    don't need to worry about this.
  - i have instruction scheduling/bundling pseudocode, that really works
    (has been tested, albeit at the perl-script level).
    so, before you go write your own, send me an email!

KNOWN DEFECTS AT THE CURRENT TIME:
  - C++ vtables contain naked function pointers, not function descriptors,
  which is bad. see http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=406
  - varargs are broken
  - alloca doesn't work (indeed, stack frame layout is bogus)
  - no support for big-endian environments
  - (not really the backend, but...) the CFE has some issues on IA64.
    these will probably be fixed soon.
  
ACKNOWLEDGEMENTS:
  - Chris Lattner (x100)
  - Other LLVM developers ("hey, that looks familiar")

CONTACT:
  - You can email me at duraid@octopus.com.au. If you find a small bug,
    just email me. If you find a big bug, please file a bug report
    in bugzilla! http://llvm.cs.uiuc.edu is your one stop shop for all
    things LLVM.