wasm-opt missing support for table.fill #5939

void
mono_jiterp_grow_function_table (int count, int fill_value) {
	__asm(
		// table.grow expects stack layout [fill_ref] [count]
		// start by loading fill_value, then fetching that reference from the indirect fn table
		"local.get 1;"
		"table.get __indirect_function_table;"
		// now fill_ref is on the stack, load count and perform the actual table grow
		"local.get 0;"
		"table.grow __indirect_function_table;"
		// table.grow returns either the new size or an error code. i'm too lazy to deal with it
		"drop;"
	);
}

#if 0
void
mono_jiterp_fill_function_table (int offset, int count, int fill_value) {
	__asm(
		// table.fill expects stack layout [offset] [fill_ref] [count]
		// load offset
		"local.get 0;"
		// load fill_value, then fetch that reference from the indirect fn table
		"local.get 2;"
		"table.get __indirect_function_table;"
		// now fill_ref is on the stack, load count and perform the actual table grow
		"local.get 1;"
		"table.fill __indirect_function_table;"
	);
}
#endif