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Zir: store extra source hashes required for incremental

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Also add corresponding invaidation logic to Zcu. Therefore, the only
invalidation logic which is not yet in place is `decl_val` dependencies.
This commit is contained in:
mlugg
2024-02-03 01:22:56 +00:00
parent 7f4bd247c7
commit 1e91ee1e05
7 changed files with 283 additions and 34 deletions
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12
src/Module.zig
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@@ -2957,6 +2957,18 @@ fn updateZirRefs(zcu: *Module, file: *File, old_zir: Zir) !void {
continue;
};
if (old_zir.getAssociatedSrcHash(old_inst)) |old_hash| hash_changed: {
if (new_zir.getAssociatedSrcHash(ti.inst)) |new_hash| {
if (std.zig.srcHashEql(old_hash, new_hash)) {
break :hash_changed;
}
}
// The source hash associated with this instruction changed - invalidate relevant dependencies.
zcu.comp.mutex.lock();
defer zcu.comp.mutex.unlock();
try zcu.markDependeeOutdated(.{ .src_hash = ti_idx });
}
// If this is a `struct_decl` etc, we must invalidate any outdated namespace dependencies.
const has_namespace = switch (old_tag[@intFromEnum(old_inst)]) {
.extended => switch (old_data[@intFromEnum(old_inst)].extended.opcode) {