It’s amazing how in-line assembly is always such a big source of miscompilations/compiler crashes. Both with C/C++ and Rust. With GCC or Clang. It doesn’t matter.
I think it makes sense as a place to expect bugs. It's a rarely used feature which interacts in a unique way with some pretty core parts of the compiler, in a platform dependent manner.
Amusingly, if I recall correctly, the author of this post was the author of Rust's original (never stable, now removed) inline assembly support, years and years ago. Certainly one of the best people in the world to have encountered this bug!
Although in recent years the representation has become a lot more abstract (and people to correctly generate that abstract representation), inline assembler tends to have a lot of monotonous drivel to get right.
