Was trying to compile vim with tcc on arm64 but got a segfault. I can simplify it to the following case:
void map_add(){}
void main() {
int A;
int B;
map_add(0, 0, 0, 0, 0, 0, 0, 0, A && B); // segfaults when compiling
}
The bad pointer was generated in arm64-gen.c::gsym_addr and the actual segfault occurred in tcc.h::read16le.
Removing one of the 0s or removing A/B or replacing A && B with a constant avoids the problem. Cannot repro on x86. I'm running musl on Linux and using the latest tcc from mob.