https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90773
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by H.J. Lu <h...@gcc.gnu.org>: https://gcc.gnu.org/g:53fb833d635da04f5b44af16bcea1082e7b59e75 commit r12-978-g53fb833d635da04f5b44af16bcea1082e7b59e75 Author: H.J. Lu <hjl.to...@gmail.com> Date: Fri May 21 05:16:20 2021 -0700 Elide expand_constructor if move by pieces is preferred Elide expand_constructor when the constructor is static storage and not mostly zeros and we can move it by pieces prefer to do so since that's usually more efficient than performing a series of stores from immediates. 2021-05-21 Richard Biener <rguent...@suse.de> H.J. Lu <hjl.to...@gmail.com> gcc/ PR middle-end/90773 * expr.c (expand_constructor): Elide expand_constructor if move by pieces is preferred. gcc/testsuite/ * gcc.target/i386/pr90773-24.c: New test. * gcc.target/i386/pr90773-25.c: Likewise.
