https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102059
--- Comment #35 from Kewen Lin <linkw at gcc dot gnu.org> --- > I don't think the r12-6219 commit qualifies for backporting. What about the > comment#31 patch? Does it address the issue for Eigen on the branches? Got it. comment#31 patch can only address the mismatch issue on power8-fusion, it doesn't help htm. (FWIW, the previous posted patch https://gcc.gnu.org/pipermail/gcc-patches/2022-January/587635.html doesn't either.) For htm issue, I think we can go with the workarounds for branches like: 1) target attribute "cpu=power10,htm" for callers to pretend power10 having htm to avoid mismatch. 2) adding -mno-htm for the whole Eigen build if it doesn't use any HTM features. 3) if unfortunately it does use HTM, make it fine grain to only those inlined callees with target attribute "no-htm".
