Function fma3

src/gopt/test/basic_arith.cpp:44–46

}

SymbolVar fma3(SymbolVar a, SymbolVar b, SymbolVar c) {
    return Elemwise::make({a, b, c}, Mode::FUSE_MUL_ADD3);
}

SymbolVar fma4(SymbolVar a, SymbolVar b, SymbolVar c, SymbolVar d) {
    return Elemwise::make({a, b, c, d}, Mode::FUSE_MUL_ADD4);