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rematdefmi
2008 May 09
2
[LLVMdev] Complicated Remat Question
...week. I have a code where
a LiveInterval is spilled and some uses can be rematerialized. %reg1235 is
spilled and at least one use is rematted. The remat def instruction is:
%reg1235<def> = FsMOVLPDrm %reg1097, 1, %reg1364, 88, Mem:LD(8,8)
[tmp17731774 + 0]
So this gets entered into ReMatDefs.
%reg1461 is created for one of the spill intervals of %reg1235. It is marked
as rematerializable with defining instruction:
%reg1235<def> = FsMOVLPDrm %reg1097, 1, %reg1364, 8, Mem:LD(8,8) [tmp17641765
+ 0]
Note that this is the same instruction as above.
%reg1097 is marked unspillabl...