src/test/ui/asm/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(zmm_reg) foo);
  25         //~^ ERROR register class `zmm_reg` requires the `avx512f` target feature
  26         asm!("", in("zmm0") foo);
  27         //~^ ERROR register class `zmm_reg` requires the `avx512f` target feature
  28         asm!("", in("ebp") foo);
  29         //~^ ERROR invalid register `ebp`: the frame pointer cannot be used as an operand
  30         asm!("", in("rsp") foo);
  31         //~^ ERROR invalid register `rsp`: the stack pointer cannot be used as an operand
  32         asm!("", in("ip") foo);
  33         //~^ ERROR invalid register `ip`: the instruction pointer cannot be used as an operand
  34         asm!("", in("st(2)") foo);
  35         //~^ ERROR invalid register `st(2)`: x87 registers are not currently supported as operands
  36         asm!("", in("mm0") foo);
  37         //~^ ERROR invalid register `mm0`: MMX registers are not currently supported as operands
  38         asm!("", in("k0") foo);
  39         //~^ ERROR invalid register `k0`: the k0 AVX mask register cannot be used as an operand
  40
  41         // Explicit register conflicts
  42         // (except in/lateout which don't conflict)
  43
  44         asm!("", in("eax") foo, in("al") bar);
  45         //~^ ERROR register `al` conflicts with register `ax`
  46         asm!("", in("rax") foo, out("rax") bar);
  47         //~^ ERROR register `ax` conflicts with register `ax`
  48         asm!("", in("al") foo, lateout("al") bar);
  49         asm!("", in("xmm0") foo, in("ymm0") bar);
  50         //~^ ERROR register `ymm0` conflicts with register `xmm0`
  51         asm!("", in("xmm0") foo, out("ymm0") bar);
  52         //~^ ERROR register `ymm0` conflicts with register `xmm0`
  53         asm!("", in("xmm0") foo, lateout("ymm0") bar);
  54     }
  55 }