nikic wrote: > > It should be technically possible for Clang to give _BitInt(N) an alignment > > that is independent from LLVM's alignment > > I'm not sure it's even technically possible: if loading a `_BitInt(129)` from > memory should load 3 bytes, but it is translated to an LLVM IR load of `i129` > that loads 4 bytes, then even if the last byte is ignored, simply attempting > to load it may access memory out of bounds and crash the program. Storing > `i129`, it would clobber the next byte of memory.
At least that shouldn't be a problem: LLVM has separate concepts of "store size" and "alloc size" where only the latter rounds up to alignment. So `load i129` is specified to access only 9 bytes, not 16 bytes. https://github.com/llvm/llvm-project/pull/81175 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
