https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111449
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by HaoChen Gui <guih...@gcc.gnu.org>: https://gcc.gnu.org/g:8111b5c23bd14f80607bd35af58ec31e38a0378e commit r14-5001-g8111b5c23bd14f80607bd35af58ec31e38a0378e Author: Haochen Gui <guih...@gcc.gnu.org> Date: Mon Oct 30 10:59:51 2023 +0800 Expand: Checking available optabs for scalar modes in by pieces operations The former patch (f08ca5903c7) examines the scalar modes by target hook scalar_mode_supported_p. It causes some i386 regression cases as XImode and OImode are not enabled in i386 target function. This patch examines the scalar mode by checking if the corresponding optabs are available for the mode. gcc/ PR target/111449 * expr.cc (qi_vector_mode_supported_p): Rename to... (by_pieces_mode_supported_p): ...this, and extends it to do the checking for both scalar and vector mode. (widest_fixed_size_mode_for_size): Call by_pieces_mode_supported_p to examine the mode. (op_by_pieces_d::smallest_fixed_size_mode_for_size): Likewise.
