https://bugs.llvm.org/show_bug.cgi?id=45905
Bug ID: 45905
Summary: [lldb][unittest] Assertion failed :
(m_replayers.find(RunID) == m_replayers.end())
Product: lldb
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: All Bugs
Assignee: lldb-dev@lists.llvm.org
Reporter: sylvain.a...@ubisoft.com
CC: alexandre.ga...@ubisoft.com, jdevliegh...@apple.com,
llvm-b...@lists.llvm.org
This happens in the LLDB unit tests, when building under windows.
In lldb\unittests\Utility\ReproducerInstrumentationTest.cpp:
LLDB_REGISTER_METHOD(void, InstrumentedFoo, Validate, ());
(...)
LLDB_REGISTER_METHOD(void, InstrumentedBar, Validate, ());
The clashing IDs are evaluated as follows:
&invoke<void(InstrumentedFoo::*)
()>::method<(&InstrumentedFoo::Validate)>::record
and
&invoke<void(InstrumentedBar::*)
()>::method<(&InstrumentedBar::Validate)>::record
Both "record" implementations are only calling Validate() through the vtable,
so the implementations are identical for both.
The linker does COMDAT folding (option /OPT:ICF), which merges the 2 functions,
so their address, which is used as an ID, end up being identical.
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