Displaying 1 result from an estimated 1 matches for "fcb3e1f8".
2017 Apr 17
2
InstSimplify and computeKnownBits
Today, InstSimplify calls computeKnownBits to try to fold to a constant
ONLY if it can't find any other simplifications for an instruction.
I think this means if we are able to find an earlier simplification we are
LESS aggressive about creating a constant because we won't even look at
known bits. This seems surprising to me.
Should we be looking at known bits always, or should we remove