Brandt Bucher

GH-99205: Mark new interpreters and threads as non-static

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* Issue: gh-99205

* Issue: gh-99257

When specializing `LOAD_ATTR_SLOT`, we don't check whether the given member descriptor is valid for the type we got it from. Here is a problematic example, where one class "borrows" a...

In several places, we have `goto error;` branches in bytecode instructions that occur *after* modifying the `next_instr` pointer. This is incorrect, since the error branch will behave as if the...

Write to a temporary file first, then rename it to the intended `jit_stencils.h` file. This keeps other build steps from assuming that the file has been successfully generated when it's...

Store keys directly in the table, instead of in a separate list

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It occurred to me recently that the internal representation of our hash table does not need to concern itself with ordering. In fact, because of the nature of our mappings,...

The JIT doesn't call for `combine_symbol_mask` on the initial trampoline for a trace

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# Crash report `_PyJIT_Compile` doesn't consider [the initial (big) trampoline "group"](https://github.com/python/cpython/blob/c35b33bfb7c491dfbdd40195d70dcfc4618265db/Python/jit.c#L473-L475) when collecting the (little) trampolines needed to compile a given trace. This doesn't break anything right now, since we...

# Bug report Our abstract interpreter should have a case for `_BINARY_OP_INPLACE_ADD_UNICODE`, since this "special" instruction includes a store to a fast local. This can mean that the local being...