search for: vn5

...quivalence used by code > folding to make the dags is STH like "two VNDAG expressions are > equivalent if their operands come from VNDAG expressions with the > same opcode") > Thus, > VN2 = VN0 + VN1 > VN3 = VN1 + VN2 > is considered equivalent to > VN2 = VN0 + VN5 > VN3 = VN1 + VN2 > Despite the fact that this is completely illegal for straight > redundancy elimination. > But again, as I said if y'all want to make a pass that basically > generates a new type of expression DAG, have fun :) I don't think that anyone wants to do anythin...

> > > Yes, this was exactly my point. We want to recognize > structurally-equivalent sequences of instructions on inequivalent operands. > Yes, and my point is "none of the vn and vn-dag generating algorithms care". you can define equivalent to be "structural", you can define it to be "these two variables are equivalent if they both start with

...s is STH like "two VNDAG expressions are equivalent if their >> operands come from VNDAG expressions with the same opcode") >> >> Thus, >> >> VN2 = VN0 + VN1 >> VN3 = VN1 + VN2 >> >> is considered equivalent to >> >> VN2 = VN0 + VN5 >> VN3 = VN1 + VN2 >> >> Despite the fact that this is completely illegal for straight redundancy >> elimination. >> >> >> But again, as I said if y'all want to make a pass that basically >> generates a new type of expression DAG, have fun :) >...

Hello list. I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without modifications. How did I try it? Created a (non-root) build environment (not a mock ) Installed the kernel.scr.rpm and did a rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee prep-out.log The build failed at the end: Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL Checking