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classb
2012 Feb 22
0
[LLVMdev] Force rematerialization
Hi all,
I'd like to force rematerialization by extending live intervals. For
example:
%vreg1 = opa %vreg2, %vreg3 ; RClassA:%vreg1, RClassB:%vreg2, RClassB:%vreg3
...
somewhere between --> %vreg2<kill> and %vreg3<kill>
..
%vreg4 = opb %vreg1 ; RClassA:%vreg1, RClassB:%vreg4
In my case, %vreg1 is not spillable and I'd like to extend vreg2 and
vreg3 live intervals to get "opa" rematerialized. If I understan...