FYI, clang 10+ has support for -ffp-exception-behavior that enables configuring this behavior. > maytrap: The compiler avoids transformations that may raise ex

FYI, clang 10+ has support for -ffp-exception-behavior that enables configuring this behavior. > maytrap: The compiler avoids transformations that may raise exceptions that would not have been raised by the original code. Constant folding performed by the compiler is exempt from this option. https://releases.llvm.org/10.0.0/tools/clang/docs/UsersManual.html https://releases.llvm.org/10.0.0/tools/clang/docs/UsersManua... You can see here that this prevents clang from using vdivps: https://godbolt.org/z/WG7bEE https://godbolt.org/z/WG7bEE.