[5.5] SILModule: track opened archetypes per function. #37041
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In theory we could map opened archetypes per module because opened archetypes _should_ be unique across the module. But currently in some rare cases SILGen re-uses the same opened archetype in multiple functions. The fix is to add the SILFunction to the map's key. That also requires that we update the map whenever instructions are moved from one function to another. This fixes a compiler crash. rdar://76916931
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slavapestov
approved these changes
Apr 27, 2021
AnthonyLatsis
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🍒 release cherry pick
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In theory we could map opened archetypes per module because opened archetypes should be unique across the module.
But currently in some rare cases SILGen re-uses the same opened archetype in multiple functions.
The fix is to add the SILFunction to the map's key.
That also requires that we update the map whenever instructions are moved from one function to another.
This fixes a compiler crash.
rdar://76916931