[Bug ipa/98265] [10/11 Regression] gcc-10 has significantly worse code generated with -O2 compared to -O1 (or gcc-9 -O2) when using the Eigen C++ library

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98265

--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
I am testing
diff --git a/gcc/cif-code.def b/gcc/cif-code.def
index 2f430cf1c39..39b89da155f 100644
--- a/gcc/cif-code.def
+++ b/gcc/cif-code.def
@@ -125,7 +125,7 @@ DEFCIFCODE(OPTIMIZATION_MISMATCH, CIF_FINAL_ERROR,
           N_("optimization level attribute mismatch"))

 /* We can't inline because the callee refers to comdat-local symbols.  */
-DEFCIFCODE(USES_COMDAT_LOCAL, CIF_FINAL_ERROR,
+DEFCIFCODE(USES_COMDAT_LOCAL, CIF_FINAL_NORMAL,
           N_("callee refers to comdat-local symbols"))

 /* We can't inline because of mismatched caller/callee