[clang] [Driver] Treat -O4 as -O3 in clang::getOptimizationLevel, which is called when building LTO link command (PR #216450)

[Wael Yehia via cfe-commits]

https://github.com/w2yehia closed 
https://github.com/llvm/llvm-project/pull/216450
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits