https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102125
--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Richard Biener <rgue...@gcc.gnu.org>: https://gcc.gnu.org/g:d9792f8d227cdd409c2b082ef0685b47ccfaa334 commit r12-7786-gd9792f8d227cdd409c2b082ef0685b47ccfaa334 Author: Richard Biener <rguent...@suse.de> Date: Wed Mar 23 14:53:49 2022 +0100 target/102125 - alternative memcpy folding improvement The following extends the heuristical memcpy folding path with the ability to use misaligned accesses on strict-alignment targets just like the size-based path does. That avoids regressing the following testcase on arm uint64_t bar64(const uint8_t *rData1) { uint64_t buffer; memcpy(&buffer, rData1, sizeof(buffer)); return buffer; } when r12-3482-g5f6a6c91d7c592 is reverted. 2022-03-23 Richard Biener <rguent...@suse.de> PR target/102125 * gimple-fold.cc (gimple_fold_builtin_memory_op): Allow the use of movmisalign when either the source or destination decl is properly aligned.
