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Author SHA1 Message Date
Jakob Stoklund Olesen 33a1b416ac Don't run RAFast in the optimizing regalloc pipeline. 
The fast register allocator is not supposed to work in the optimizing
pipeline. It doesn't make sense to compute live intervals, run full copy
coalescing, and then run RAFast.

Fast register allocation in the optimizing pipeline is better done by
RABasic.

llvm-svn: 158242
 2012-06-08 23:15:12 +00:00
Jakob Stoklund Olesen 246e9a07a2 Avoid processing early clobbers twice in RegAllocFast. 
Early clobbers defining a virtual register were first alocated to a physreg and
then processed as a physreg EC, spilling the virtreg.

This fixes PR7382.

llvm-svn: 105998
 2010-06-15 16:20:57 +00:00