Sterling Augustine 71fbd6e406 Exit unwinding early when at the top of the stack and additional info won't be found.
Summary:
This patch follows libgcc's lead: When the return-address register is
zero, there won't be additional stack frames to examine, or gather
information about. Exit before spending time looking for something
known not to be found.

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D77099
2020-04-02 10:52:25 -07:00
..
2020-03-22 22:49:33 +01:00