https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99881
--- Comment #12 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:90d693bdc9d71841f51d68826ffa5bd685d7f0bc commit r12-7319-g90d693bdc9d71841f51d68826ffa5bd685d7f0bc Author: Richard Biener <rguent...@suse.de> Date: Fri Feb 18 14:32:14 2022 +0100 target/99881 - x86 vector cost of CTOR from integer regs This uses the now passed SLP node to the vectorizer costing hook to adjust vector construction costs for the cost of moving an integer component from a GPR to a vector register when that's required for building a vector from components. A cruical difference here is whether the component is loaded from memory or extracted from a vector register as in those cases no intermediate GPR is involved. The pr99881.c testcase can be Un-XFAILed with this patch, the pr91446.c testcase now produces scalar code which looks superior to me so I've adjusted it as well. 2022-02-18 Richard Biener <rguent...@suse.de> PR tree-optimization/104582 PR target/99881 * config/i386/i386.cc (ix86_vector_costs::add_stmt_cost): Cost GPR to vector register moves for integer vector construction. * gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-1.c: New. * gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-2.c: Likewise. * gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-3.c: Likewise. * gcc.dg/vect/costmodel/x86_64/costmodel-pr104582-4.c: Likewise. * gcc.target/i386/pr99881.c: Un-XFAIL. * gcc.target/i386/pr91446.c: Adjust to not expect vectorization.
