src/test/ui/asm/x86_64/bad-reg.rs

   1 // only-x86_64
   2 // compile-flags: -C target-feature=+avx2
   3
   4 #![feature(asm)]
   5
   6 fn main() {
   7     let mut foo = 0;
   8     let mut bar = 0;
   9     unsafe {
  10         // Bad register/register class
  11
  12         asm!("{}", in(foo) foo);
  13         //~^ ERROR invalid register class `foo`: unknown register class
  14         asm!("", in("foo") foo);
  15         //~^ ERROR invalid register `foo`: unknown register
  16         asm!("{:z}", in(reg) foo);
  17         //~^ ERROR invalid asm template modifier for this register class
  18         asm!("{:r}", in(xmm_reg) foo);
  19         //~^ ERROR invalid asm template modifier for this register class
  20         asm!("{:a}", const 0);
  21         //~^ ERROR asm template modifiers are not allowed for `const` arguments
  22         asm!("{:a}", sym main);
  23         //~^ ERROR asm template modifiers are not allowed for `sym` arguments
  24         asm!("", in("ebp") foo);
  25         //~^ ERROR invalid register `ebp`: the frame pointer cannot be used as an operand
  26         asm!("", in("rsp") foo);
  27         //~^ ERROR invalid register `rsp`: the stack pointer cannot be used as an operand
  28         asm!("", in("ip") foo);
  29         //~^ ERROR invalid register `ip`: the instruction pointer cannot be used as an operand
  30         asm!("", in("k0") foo);
  31         //~^ ERROR invalid register `k0`: the k0 AVX mask register cannot be used as an operand
  32         asm!("", in("ah") foo);
  33         //~^ ERROR invalid register `ah`: high byte registers cannot be used as an operand
  34
  35         asm!("", in("st(2)") foo);
  36         //~^ ERROR register class `x87_reg` can only be used as a clobber, not as an input or output
  37         asm!("", in("mm0") foo);
  38         //~^ ERROR register class `mmx_reg` can only be used as a clobber, not as an input or output
  39         asm!("", out("st(2)") _);
  40         asm!("", out("mm0") _);
  41         asm!("{}", in(x87_reg) foo);
  42         //~^ ERROR register class `x87_reg` can only be used as a clobber, not as an input or output
  43         asm!("{}", in(mmx_reg) foo);
  44         //~^ ERROR register class `mmx_reg` can only be used as a clobber, not as an input or output
  45         asm!("{}", out(x87_reg) _);
  46         //~^ ERROR register class `x87_reg` can only be used as a clobber, not as an input or output
  47         asm!("{}", out(mmx_reg) _);
  48         //~^ ERROR register class `mmx_reg` can only be used as a clobber, not as an input or output
  49
  50         // Explicit register conflicts
  51         // (except in/lateout which don't conflict)
  52
  53         asm!("", in("eax") foo, in("al") bar);
  54         //~^ ERROR register `al` conflicts with register `ax`
  55         asm!("", in("rax") foo, out("rax") bar);
  56         //~^ ERROR register `ax` conflicts with register `ax`
  57         asm!("", in("al") foo, lateout("al") bar);
  58         asm!("", in("xmm0") foo, in("ymm0") bar);
  59         //~^ ERROR register `ymm0` conflicts with register `xmm0`
  60         asm!("", in("xmm0") foo, out("ymm0") bar);
  61         //~^ ERROR register `ymm0` conflicts with register `xmm0`
  62         asm!("", in("xmm0") foo, lateout("ymm0") bar);
  63     }
  64 }