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gh-106581: Project through calls (#108067)
This finishes the work begun in gh-107760. When, while projecting a superblock, we encounter a call to a short, simple function, the superblock will now enter the function using `_PUSH_FRAME`, continue through it, and leave it using `_POP_FRAME`, and then continue through the original code. Multiple frame pushes and pops are even possible. It is also possible to stop appending to the superblock in the middle of a called function, when running out of space or encountering an unsupported bytecode.
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16 changed files with 409 additions and 109 deletions
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@ -380,7 +380,7 @@ def write_components(
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poke.as_stack_effect(lax=True),
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)
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if mgr.instr.name == "_PUSH_FRAME":
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if mgr.instr.name in ("_PUSH_FRAME", "_POP_FRAME"):
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# Adjust stack to min_offset (input effects materialized)
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out.stack_adjust(mgr.min_offset.deep, mgr.min_offset.high)
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# Use clone() since adjust_inverse() mutates final_offset
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