https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99786
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Christophe Lyon <cl...@gcc.gnu.org>: https://gcc.gnu.org/g:7c1d6e89994109e1b6efb5f13890be5586edeb75 commit r11-7929-g7c1d6e89994109e1b6efb5f13890be5586edeb75 Author: Christophe Lyon <christophe.l...@linaro.org> Date: Mon Mar 29 12:41:08 2021 +0000 arm: Fix mult autovectorization patterm for iwmmxt (PR target/99786) Similarly to other recently-added autovectorization patterns, mult has been erroneously enabled for iwmmxt. However, V4HI and V2SI modes are supported, so we make an exception for them. The new testcase is derived from gcc.dg/ubsan/pr79904.c, with additional modes added. I kept dg-do compile because 'assemble' results in error messages from the assembler, which are not related to this PR: Error: selected processor does not support `tmcrr wr0,r4,r5' in ARM mode Error: selected processor does not support `wstrd wr0,[r0]' in ARM mode Error: selected processor does not support `wldrd wr0,[r0]' in ARM mode Error: selected processor does not support `wldrd wr2,.L5' in ARM mode Error: selected processor does not support `wmulul wr0,wr0,wr2' in ARM mode Error: selected processor does not support `wstrd wr0,[r0]' in ARM mode Error: selected processor does not support `wldrd wr0,[r0]' in ARM mode Error: selected processor does not support `wldrd wr2,.L8' in ARM mode Error: selected processor does not support `wmulwl wr0,wr0,wr2' in ARM mode Error: selected processor does not support `wstrd wr0,[r0]' in ARM mode 2021-03-29 Christophe Lyon <christophe.l...@linaro.org> PR target/99786 gcc/ * config/arm/vec-common.md (mul<mode>3): Disable on iwMMXT, expect for V4HI and V2SI. gcc/testsuite/ * gcc.target/arm/pr99786.c: New test.
