https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82255
--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Kewen Lin <li...@gcc.gnu.org>: https://gcc.gnu.org/g:090d83c25508c108756a534c765d2fa8c07eb261 commit r14-2490-g090d83c25508c108756a534c765d2fa8c07eb261 Author: Kewen Lin <li...@linux.ibm.com> Date: Wed Jul 12 21:23:21 2023 -0500 vect: Adjust vectorizable_load costing on VMAT_ELEMENTWISE and VMAT_STRIDED_SLP This patch adjusts the cost handling on VMAT_ELEMENTWISE and VMAT_STRIDED_SLP in function vectorizable_load. We don't call function vect_model_load_cost for them any more. As PR82255 shows, we don't always need a vector construction there, moving costing next to the transform can make us only cost for vector construction when it's actually needed. Besides, it can count the number of loads consistently for some cases. PR tree-optimization/82255 gcc/ChangeLog: * tree-vect-stmts.cc (vectorizable_load): Adjust the cost handling on VMAT_ELEMENTWISE and VMAT_STRIDED_SLP without calling vect_model_load_cost. (vect_model_load_cost): Assert it won't get VMAT_ELEMENTWISE and VMAT_STRIDED_SLP any more, and remove their related handlings. gcc/testsuite/ChangeLog: * gcc.dg/vect/costmodel/ppc/costmodel-pr82255.c: New test. 2023-06-13 Bill Schmidt <wschm...@linux.ibm.com> Kewen Lin <li...@linux.ibm.com>
