mirror of https://github.com/rust-lang/rust
62 lines
2.6 KiB
Rust
62 lines
2.6 KiB
Rust
//@ only-aarch64
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//@ compile-flags: -C target-feature=+neon
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#![feature(asm_const)]
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use std::arch::asm;
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fn main() {
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let mut foo = 0;
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let mut bar = 0;
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unsafe {
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// Bad register/register class
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asm!("{}", in(foo) foo);
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//~^ ERROR invalid register class `foo`: unknown register class
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asm!("", in("foo") foo);
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//~^ ERROR invalid register `foo`: unknown register
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asm!("{:z}", in(reg) foo);
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//~^ ERROR invalid asm template modifier for this register class
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asm!("{:r}", in(vreg) foo);
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//~^ ERROR invalid asm template modifier for this register class
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asm!("{:r}", in(vreg_low16) foo);
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//~^ ERROR invalid asm template modifier for this register class
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asm!("{:a}", const 0);
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//~^ ERROR asm template modifiers are not allowed for `const` arguments
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asm!("{:a}", sym main);
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//~^ ERROR asm template modifiers are not allowed for `sym` arguments
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asm!("", in("x29") foo);
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//~^ ERROR invalid register `x29`: the frame pointer cannot be used as an operand
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asm!("", in("sp") foo);
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//~^ ERROR invalid register `sp`: the stack pointer cannot be used as an operand
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asm!("", in("xzr") foo);
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//~^ ERROR invalid register `xzr`: the zero register cannot be used as an operand
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asm!("", in("x19") foo);
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//~^ ERROR invalid register `x19`: x19 is used internally by LLVM and cannot be used as an operand for inline asm
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asm!("", in("p0") foo);
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//~^ ERROR register class `preg` can only be used as a clobber, not as an input or output
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//~| ERROR type `i32` cannot be used with this register class
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asm!("", out("p0") _);
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asm!("{}", in(preg) foo);
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//~^ ERROR register class `preg` can only be used as a clobber, not as an input or output
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//~| ERROR type `i32` cannot be used with this register class
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asm!("{}", out(preg) _);
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//~^ ERROR register class `preg` can only be used as a clobber, not as an input or output
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// Explicit register conflicts
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// (except in/lateout which don't conflict)
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asm!("", in("x0") foo, in("w0") bar);
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//~^ ERROR register `w0` conflicts with register `x0`
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asm!("", in("x0") foo, out("x0") bar);
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//~^ ERROR register `x0` conflicts with register `x0`
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asm!("", in("w0") foo, lateout("w0") bar);
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asm!("", in("v0") foo, in("q0") bar);
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//~^ ERROR register `q0` conflicts with register `v0`
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asm!("", in("v0") foo, out("q0") bar);
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//~^ ERROR register `q0` conflicts with register `v0`
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asm!("", in("v0") foo, lateout("q0") bar);
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}
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}
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