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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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| .. | ||
| behavior | ||
| c_abi | ||
| cases | ||
| link | ||
| src | ||
| standalone | ||
| assemble_and_link.zig | ||
| behavior.zig | ||
| cases.zig | ||
| cbe.zig | ||
| compare_output.zig | ||
| compile_errors.zig | ||
| gen_h.zig | ||
| link.zig | ||
| nvptx.zig | ||
| run_translated_c.zig | ||
| stack_traces.zig | ||
| standalone.zig | ||
| tests.zig | ||
| translate_c.zig | ||