A = GetFirstValue();
B = A;
A = GetSecondValue();
C = A; // <-- this would get GetSecondValue() assigned to C instead of GetFirstValue()
Adds an SSA pass to help reduce overwriting registers, adds logic to remove self assignments, and adds logic to stop propagating when values are dirtied
From a sampling of scripts, about 2% are changed (where 1-3 unnecessary ops have been deleted).
#rb simon.tovey
#preflight 62b0d63c8e03312ad83a0c51
#jira UE-148892
[CL 20756957 by rob krajcarski in ue5-main branch]
c18bc543e3