Rafael Auler 8233c7d204 [BOLT] Bail frame analysis on PUSHes escaping vars ...

Summary:
Some PUSH instructions may contain memory addresses pushed to
the stack. If this memory address is from an object in the stack, cancel
further frame analysis for this function since it may be escaping a
variable.

This fixes a bug with deleting used stores (in frameopt) in hhvm trunk.

(cherry picked from FBD5270590)

2017-06-16 15:02:26 -07:00

bolt

[BOLT] Bail frame analysis on PUSHes escaping vars

2017-06-16 15:02:26 -07:00

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