search for: flipallbits

...of getScalarSizeInBits(). > + APInt mask(width, 0), zeroes(width, 0), ones(width, 0); > + mask.setAllBits(); An easier way to get an all-one mask would be to construct it as 'APInt mask(width, -1, true)'. > + ComputeMaskedBits(LHS, mask, zeroes, ones); > + zeroes.flipAllBits(); > + > + if ((power = ones.exactLogBase2()) != -1 && zeroes == ones) { It would probably be cleaner to assign 'power' outside the condition. I don't think you're handling the case where the only set bit is the sign bit correctly; in that case the value is the mo...

Hi all! I've been tinkering with LLVM's code-base for a few days, hoping to start on one of the ideas mentioned in the "Open Projects" page (I was told 'Improving the current system'/'Miscellaneous Improvements'/5 would be a good start). While I was at it, I also took a stab at finishing up one of the TODOs. I've attached the patch for review. --

Hi As I understand live variable analysis will set the def/kill properties of operands. In that case, is it still needed to set the kill flags when possible during lowering? thanks dz