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64 Commits

Author SHA1 Message Date
David Goodwin 27303cde82 Add conditional and unconditional thumb-2 branch. Add thumb-2 jump table. 
llvm-svn: 74543
 2009-06-30 18:04:13 +00:00
Dan Gohman d185a7a629 Add explicit keywords. 
llvm-svn: 72969
 2009-06-05 23:05:51 +00:00
Evan Cheng 454ff53d58 Use ARMFunctionInfo to track number of constpool entries and jumptables. 
llvm-svn: 58877
 2008-11-08 00:51:41 +00:00
Dan Gohman 3a4be0fdef Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Dale Johannesen ed0ecdb7ff add Align field, and use when generating function alignment 
llvm-svn: 36371
 2007-04-23 20:07:25 +00:00
Evan Cheng 6f059e3e0a - Track which callee-saved registers are spilled. 
- Some code clean up.

llvm-svn: 34783
 2007-03-01 08:26:31 +00:00
Evan Cheng 677bb3b460 Switch from std::vector<bool> to BitVector. 
llvm-svn: 34781
 2007-03-01 07:52:44 +00:00
Evan Cheng 78c5a9422d In thumb mode, R3 is reserved, but it can be live in to the function. If 
that is the case, whenever we use it as a scratch register, save it to R12
first and then restore it after the use.
This is a temporary and truly horrible workaround!

llvm-svn: 33999
 2007-02-07 09:17:36 +00:00
Evan Cheng 7fa6964dc2 - In thumb mode, if size of MachineFunction is >= 2048, force LR to be 
spilled (if it is not already).
- If LR is spilled, use BL to implement far jumps. LR is not used as a GPR
  in thumb mode so it can be clobbered if it is properly spilled / restored
  in prologue / epilogue.
- If LR is force spilled but no far jump has been emitted, try undo'ing the
  spill by:
  push lr -> delete
  pop pc -> bx lr

llvm-svn: 33650
 2007-01-30 01:18:38 +00:00
Evan Cheng 43e8518d8b Remember if LR register has been spilled in this function. 
llvm-svn: 33632
 2007-01-29 22:22:24 +00:00
Evan Cheng c1a1bd18e3 Getting rid uses of evil std::set<> 
llvm-svn: 33496
 2007-01-25 03:07:27 +00:00
Evan Cheng aa24f08926 Clean up ARM PEI code. 
llvm-svn: 33389
 2007-01-20 02:09:25 +00:00
Evan Cheng 10043e215b ARM backend contribution from Apple. 
llvm-svn: 33353
 2007-01-19 07:51:42 +00:00