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tweak registers cache lookup rules, to correctly return stale results on failed reads

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This commit is contained in:
Ryan Fleury
2024-03-21 11:48:48 -07:00
parent e0e84c2ee3
commit 1466b27385
3 changed files with 8 additions and 5 deletions
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src/ctrl/ctrl_core.c
+6 -2
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@@ -1344,11 +1344,15 @@ ctrl_query_cached_reg_block_from_thread(Arena *arena, CTRL_MachineID machine_id,
if(node)
{
U64 current_reg_gen = dmn_reg_gen();
if(node->reg_gen != current_reg_gen && dmn_thread_read_reg_block(thread, node->block))
if(node->reg_gen != current_reg_gen && dmn_thread_read_reg_block(thread, result))
{
node->reg_gen = current_reg_gen;
MemoryCopy(node->block, result, reg_block_size);
}
else
{
MemoryCopy(result, node->block, reg_block_size);
}
MemoryCopy(result, node->block, reg_block_size);
}
}
return result;