Vedant Kumar
baf8348499
[DWARF] Emit DW_AT_call_pc for tail calls ...
Record the address of a tail-calling branch instruction within its call
site entry using DW_AT_call_pc. This allows a debugger to determine the
address to use when creating aritificial frames.
This creates an extra attribute + relocation at tail call sites, which
constitute 3-5% of all call sites in xnu/clang respectively.
rdar://60307600
Differential Revision: https://reviews.llvm.org/D76336
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