Evan Cheng 2805dcc9a0 - Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction.
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

llvm-svn: 59697
2008-11-20 02:32:35 +00:00
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2008-04-10 23:49:09 +00:00
2008-04-10 23:49:09 +00:00
2008-04-01 02:18:22 +00:00