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16:39:56
ebrasca
What are spill-* instructions in compiler for?
16:42:50
froggey
when there are more live values than there are available registers, values need to be saved to the stack. this is called spilling
16:43:14
froggey
https://en.wikipedia.org/wiki/Register_allocation#Principle middle paragraph
16:43:34
froggey
the spill instructions are what implement this, saving registers to the stack
16:43:48
froggey
fill instructions do the opposite, loading values from the stack into registers
16:45:03
ebrasca
Probably stw for storing in ppc64
16:51:13
ebrasca
I get "Missing stack slot for vreg"