src/test/ui/asm/bad-reg.rs

// only-x86_64
// compile-flags: -C target-feature=+avx2

#![feature(asm)]

fn main() {
    let mut foo = 0;
    let mut bar = 0;
    unsafe {
        // Bad register/register class

        asm!("{}", in(foo) foo);
        //~^ ERROR invalid register class `foo`: unknown register class
        asm!("", in("foo") foo);
        //~^ ERROR invalid register `foo`: unknown register
        asm!("{:z}", in(reg) foo);
        //~^ ERROR invalid asm template modifier for this register class
        asm!("{:r}", in(xmm_reg) foo);
        //~^ ERROR invalid asm template modifier for this register class
        asm!("{:a}", const 0);
        //~^ ERROR asm template modifiers are not allowed for `const` arguments
        asm!("{:a}", sym main);
        //~^ ERROR asm template modifiers are not allowed for `sym` arguments
        asm!("{}", in(zmm_reg) foo);
        //~^ ERROR register class `zmm_reg` requires the `avx512f` target feature
        asm!("", in("zmm0") foo);
        //~^ ERROR register class `zmm_reg` requires the `avx512f` target feature
        asm!("", in("ebp") foo);
        //~^ ERROR invalid register `ebp`: the frame pointer cannot be used as an operand
        asm!("", in("rsp") foo);
        //~^ ERROR invalid register `rsp`: the stack pointer cannot be used as an operand
        asm!("", in("ip") foo);
        //~^ ERROR invalid register `ip`: the instruction pointer cannot be used as an operand
        asm!("", in("st(2)") foo);
        //~^ ERROR invalid register `st(2)`: x87 registers are not currently supported as operands
        asm!("", in("mm0") foo);
        //~^ ERROR invalid register `mm0`: MMX registers are not currently supported as operands
        asm!("", in("k0") foo);
        //~^ ERROR invalid register `k0`: the k0 AVX mask register cannot be used as an operand

        // Explicit register conflicts
        // (except in/lateout which don't conflict)

        asm!("", in("eax") foo, in("al") bar);
        //~^ ERROR register `al` conflicts with register `ax`
        asm!("", in("rax") foo, out("rax") bar);
        //~^ ERROR register `ax` conflicts with register `ax`
        asm!("", in("al") foo, lateout("al") bar);
        asm!("", in("xmm0") foo, in("ymm0") bar);
        //~^ ERROR register `ymm0` conflicts with register `xmm0`
        asm!("", in("xmm0") foo, out("ymm0") bar);
        //~^ ERROR register `ymm0` conflicts with register `xmm0`
        asm!("", in("xmm0") foo, lateout("ymm0") bar);
    }
}