================ @@ -58,6 +58,26 @@ code bases. containing strict-aliasing violations. The new default behavior can be disabled using ``-fno-pointer-tbaa``. +- Clang will now more aggressively use undefined behavior on pointer addition ---------------- nikic wrote:
I think it's hard to add an example that is small and simple enough for a release note. After all, the distinguishing feature between a desirable and an undesirable optimization in this context is just how many layers of abstraction there are. (This is Schrödinger's programmer: Doesn't want the compiler to optimize trivial cases because its "obviously wrong". Does want it to optimize complex cases.) E.g. one of the motivating cases I have lying around is https://godbolt.org/z/3Y5bTxzqq, and that is both too large for a release note and too reduced to be really meaningful :) https://github.com/llvm/llvm-project/pull/122462 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
