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55 Commits

Author SHA1 Message Date
Akira Hatanaka 5852e3b800 [mips] Stop reserving register AT and use register scavenger when a scratch 
register is needed.

llvm-svn: 167341
 2012-11-03 00:05:43 +00:00
Micah Villmow cdfe20b97f Move TargetData to DataLayout. 
llvm-svn: 165402
 2012-10-08 16:38:25 +00:00
Akira Hatanaka fab8929459 Move the code that creates instances of MipsInstrInfo and MipsFrameLowering out 
of MipsTargetMachine.cpp.

llvm-svn: 161191
 2012-08-02 18:21:47 +00:00
Akira Hatanaka 88d76cfd7a Implement MipsSERegisterInfo::eliminateCallFramePseudoInstr. The function emits 
instructions that decrement and increment the stack pointer before and after a
call when the function does not have a reserved call frame.

llvm-svn: 161093
 2012-07-31 23:52:55 +00:00
Akira Hatanaka d1c43cee24 Add definitions of two subclasses of MipsFrameLowering, Mips16FrameLowering and 
MipsSEFrameLowering.

Implement MipsSEFrameLowering::hasReservedCallFrame. Call frames will not be
reserved if there is a call with a large call frame or there are variable sized
objects on the stack.

llvm-svn: 161090
 2012-07-31 22:50:19 +00:00