5 Commits

Author SHA1 Message Date
Evan Cheng
5f9e291240 Allow copyRegToReg to emit cross register classes copies.
Tested with "make check"!

llvm-svn: 42346
2007-09-26 06:25:56 +00:00
Dan Gohman
fb60c0dfed Remove isReg, isImm, and isMBB, and change all their users to use
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.

llvm-svn: 41958
2007-09-14 20:33:02 +00:00
Christopher Lamb
e0c9bd8d2e Move isSubRegOf into MRegisterInfo. Fix a missed move elimination in LowerSubregs and add more debugging output there.
llvm-svn: 41005
2007-08-10 21:11:55 +00:00
Christopher Lamb
8875f43912 Implement review feedback. No functionality change.
llvm-svn: 40863
2007-08-06 16:33:56 +00:00
Christopher Lamb
258dab5389 Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions.
llvm-svn: 40521
2007-07-26 08:18:32 +00:00