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4976b58ab1
The idea here is that there are two ways we can reference a function at runtime:
* Through a direct call, i.e. where the function is comptime-known
* Through a function pointer
This means we can easily perform a form of rudimentary escape analysis
on functions. If we ever see a `decl_ref` or `ref` of a function, we
have a function pointer, which could "leak" into runtime code, so we
emit the function; but for a plain `decl_val`, there's no need to.
This change means that `comptime { _ = f; }` no longer forces a function
to be emitted, which was used for some things (mainly tests). These use
sites have been replaced with `_ = &f;`, which still triggers analysis
of the function body, since you're taking a pointer to the function.
Resolves: #6256
Resolves: #15353
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| .. | ||
| address_space_pointer_access_chaining_pointer_to_optional_array.zig | ||
| address_spaces_pointer_access_chaining_array_pointer.zig | ||
| address_spaces_pointer_access_chaining_complex.zig | ||
| address_spaces_pointer_access_chaining_struct_pointer.zig | ||
| blocks.zig | ||
| dereferencing_though_multiple_pointers_with_address_spaces.zig | ||
| f_segment_address_space_reading_and_writing.zig | ||
| for_loop.zig | ||
| hello_world.zig | ||
| nested_blocks.zig | ||
| optionals.zig | ||
| pointer_keeps_address_space_when_taking_address_of_dereference.zig | ||
| pointer_keeps_address_space.zig | ||
| pointer_to_explicit_generic_address_space_coerces_to_implicit_pointer.zig | ||
| rem.zig | ||
| simple_addition_and_subtraction.zig | ||
| simple_if_statement.zig | ||
| while_loops.zig | ||