K 10 svn:author V 6 gerald K 8 svn:date V 27 2020-02-23T08:32:31.282671Z K 7 svn:log V 235 Update to the 20200221 snapshot of GCC 8.3.1. This brings further backports for the pending GCC 8.4 release such as for the Fortran front end, MMX and AVX512 on x86, plus some middle end fixes and half a dozen in the tree optimizers. END