Michael137 wrote:
Some of the libc++ tests seem to be crashing on the x86_64 bot (can repro this
on my x86_64 at home, not aarch64 though). Looks like they're segfaulting
trying to access the member of an empty class. E.g., in
```
Process 1370440 stopped
* thread #1, name = 't.tmp.exe', stop reason = signal SIGSEGV: invalid address
(fault address: 0x20)
frame #0: 0x00005555555560c3
t.tmp.exe`std::__1::operator==[abi:se190000](__x=0x00007fffffffdd10,
__y=0x00007fffffffdcd0) at error_code.h:97:25
94 }
95
96 inline _LIBCPP_HIDE_FROM_ABI bool operator==(const error_code& __x,
const error_condition& __y) _NOEXCEPT {
-> 97 return __x.category().equivalent(__x.value(), __y) ||
__y.category().equivalent(__x, __y.value());
98 }
99
100 #if _LIBCPP_STD_VER <= 17
(lldb) dis -pc
t.tmp.exe`std::__1::operator==[abi:se190000](std::__1::error_code const&,
std::__1::error_condition const&):
-> 0x5555555560c3 <+51>: callq *0x20(%rax)
0x5555555560c6 <+54>: movb %al, %cl
0x5555555560c8 <+56>: movb $0x1, %al
0x5555555560ca <+58>: testb $0x1, %cl
(lldb)
```
https://github.com/llvm/llvm-project/pull/96422
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