Segment fault when compiling assembly

[SchrodingerZhu]

Compile a asm block with =m will lead the compiler to seg fault. I think if there is any error with the code, the compiler should indicate it rather than run into segment fault.

pub unsafe extern "C" fn atomic_and_u64(p: *mut u64, v: u64) -> u64 {
    asm!("lock ; andq $1, $0" : "=m"(*p) : "r"(v) : "memory");
    *p
}

Error

Caused by:
  process didn't exit successfully: `rustc --edition=2018 --crate-name toylibc src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C panic=abort -C debuginfo=2 -C metadata=f536773699f0f74f -C extra-filename=-f536773699f0f74f --out-dir /home/schrodinger/CLionProject/toylibc/target/debug/deps -C incremental=/home/schrodinger/CLionProject/toylibc/target/debug/incremental -L dependency=/home/schrodinger/CLionProject/toylibc/target/debug/deps --extern lazy_static=/home/schrodinger/CLionProject/toylibc/target/debug/deps/liblazy_static-b4fa3bf214a3db33.rmeta --extern libm=/home/schrodinger/CLionProject/toylibc/target/debug/deps/liblibm-9d192941e1060f4a.rmeta --extern num_complex=/home/schrodinger/CLionProject/toylibc/target/debug/deps/libnum_complex-8efc7ec6cfc104f8.rmeta --extern packed_simd=/home/schrodinger/CLionProject/toylibc/target/debug/deps/libpacked_simd-91b90749ee6f08f0.rmeta --extern rand=/home/schrodinger/CLionProject/toylibc/target/debug/deps/librand-25733e87e78583f1.rmeta --extern rusty_asm=/home/schrodinger/CLionProject/toylibc/target/debug/deps/librusty_asm-107b2a2a8d9cb95d.so --extern simdeez=/home/schrodinger/CLionProject/toylibc/target/debug/deps/libsimdeez-628e9dc7fee60165.rmeta --extern spin=/home/schrodinger/CLionProject/toylibc/target/debug/deps/libspin-2a6e9c378b3e2966.rmeta --extern syscalls=/home/schrodinger/CLionProject/toylibc/target/debug/deps/libsyscalls-85e15f6b741aa697.rmeta` (signal: 11, SIGSEGV: invalid memory reference)

[csmoe]

Duplicate of #29722 (comment)