https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99218
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Harald Anlauf <anl...@gcc.gnu.org>: https://gcc.gnu.org/g:4fbef612ca1adb71c90eab0d6a682ec6af5b7c93 commit r10-9420-g4fbef612ca1adb71c90eab0d6a682ec6af5b7c93 Author: Harald Anlauf <anl...@gmx.de> Date: Fri Mar 5 20:57:54 2021 +0100 PR libfortran/99218 - matmul on temporary array accesses invalid memory Do not invoke tuned rank-2 times rank-2 matmul if rank(b) == 1. libgfortran/ChangeLog: PR libfortran/99218 * m4/matmul_internal.m4: Invoke tuned matmul only for rank(b)>1. * generated/matmul_c10.c: Regenerated. * generated/matmul_c16.c: Likewise. * generated/matmul_c4.c: Likewise. * generated/matmul_c8.c: Likewise. * generated/matmul_i1.c: Likewise. * generated/matmul_i16.c: Likewise. * generated/matmul_i2.c: Likewise. * generated/matmul_i4.c: Likewise. * generated/matmul_i8.c: Likewise. * generated/matmul_r10.c: Likewise. * generated/matmul_r16.c: Likewise. * generated/matmul_r4.c: Likewise. * generated/matmul_r8.c: Likewise. * generated/matmulavx128_c10.c: Likewise. * generated/matmulavx128_c16.c: Likewise. * generated/matmulavx128_c4.c: Likewise. * generated/matmulavx128_c8.c: Likewise. * generated/matmulavx128_i1.c: Likewise. * generated/matmulavx128_i16.c: Likewise. * generated/matmulavx128_i2.c: Likewise. * generated/matmulavx128_i4.c: Likewise. * generated/matmulavx128_i8.c: Likewise. * generated/matmulavx128_r10.c: Likewise. * generated/matmulavx128_r16.c: Likewise. * generated/matmulavx128_r4.c: Likewise. * generated/matmulavx128_r8.c: Likewise. gcc/testsuite/ChangeLog: PR libfortran/99218 * gfortran.dg/matmul_21.f90: New test. (cherry picked from commit b1bee29167df6b0fbc9a4c8d06e2acbf3367af47)
