toolchain.eclass: downgrade znver2 to znver1

Multiple other downgrades are missing here after 4.9 though

Closes: https://bugs.gentoo.org/721690
Closes: https://github.com/gentoo/gentoo/pull/15733
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index c7eeb63b6d226e007d39e20d2eb226b8272c7ea0..a8fd3e953bc354112dafaeddd3e980b50dc5d293 100644 (file)
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1403,6 +1403,7 @@ downgrade_arch_flags() {
 
        # "added" "arch" "replacement"
        local archlist=(
+               9 znver2 znver1
                4.9 bdver4 bdver3
                4.9 bonnell atom
                4.9 broadwell core-avx2