https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212
--- Comment #240 from Kazumoto Kojima <kkojima at gcc dot gnu.org> --- My trial of the 3-stage bootstrap of gcc with enabling c,c++,lto,ada on qemu has been done successfully with "-g -O2 -m4 -mlra" flags. I'm using the gcc master commit 592a335de563a3a9e36d362c5b9f3fb0a990c1d8 + LRA patch series which is equal to sh-lra branch to https://github.com/kazkojima/gcc.git.
