https://bugs.llvm.org/show_bug.cgi?id=38064
Bug ID: 38064
Summary: writeout and flush functions are redundant
Product: compiler-rt
Version: unspecified
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: profile
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
We currently have writeout functions and flush functions, where the difference
is just that the flush function is also resetting the counters to 0.
At exit, instead of calling __llvm_gcov_writeout, we could call
__llvm_gcov_flush. Since we are at exit, the fact that we reset the counters to
0 for the current module doesn't matter (as the module is not usable anymore
after that).
At exit we would still call __llvm_gcov_flush only for the module that is
exiting, at __gcov_flush we would call __llvm_gcov_flush for all modules.
The benefit is simplifying the code a bit. The drawback is that atexit will be
a bit slower (as it will have to reset the counters).
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