i#2001 trace perf: do not store disp #2795
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For offline traces for a "disp(base)" memref, only stores the base and adds the disp in raw2trace post-processing, as it's statically known. The base can be directly written as it's already in a register, reducing scratch register pressure. Moves the second scratch register reservation into the instru_t routines so we can skip it for this optimization of just writing the base reg for "disp(base)" memrefs. Issue: #2001
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For offline traces for a "disp(base)" memref, only stores the base and adds
the disp in raw2trace post-processing, as it's statically known. The base
can be directly written as it's already in a register, reducing scratch
register pressure.
Moves the second scratch register reservation into the instru_t routines so
we can skip it for this optimization of just writing the base reg for
"disp(base)" memrefs.
Issue: #2001