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Add inline asm! tests for aarch64
Enable tests which are largely architecture-independent on all supported platforms
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Diff for: ‎src/test/ui/asm/aarch64/bad-options.rs

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// only-aarch64
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#![feature(asm, global_asm)]
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fn main() {
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let mut foo = 0;
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unsafe {
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asm!("", options(nomem, readonly));
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//~^ ERROR the `nomem` and `readonly` options are mutually exclusive
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asm!("", options(pure, nomem, noreturn));
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//~^ ERROR the `pure` and `noreturn` options are mutually exclusive
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//~^^ ERROR asm with the `pure` option must have at least one output
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asm!("{}", in(reg) foo, options(pure, nomem));
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//~^ ERROR asm with the `pure` option must have at least one output
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asm!("{}", out(reg) foo, options(noreturn));
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//~^ ERROR asm outputs are not allowed with the `noreturn` option
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}
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unsafe {
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asm!("", clobber_abi("foo"));
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//~^ ERROR invalid ABI for `clobber_abi`
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asm!("{}", out(reg) foo, clobber_abi("C"));
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//~^ ERROR asm with `clobber_abi` must specify explicit registers for outputs
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asm!("", out("x0") foo, clobber_abi("C"));
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}
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}
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global_asm!("", options(nomem));
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//~^ ERROR expected one of
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global_asm!("", options(readonly));
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//~^ ERROR expected one of
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global_asm!("", options(noreturn));
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//~^ ERROR expected one of
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global_asm!("", options(pure));
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//~^ ERROR expected one of
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global_asm!("", options(nostack));
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//~^ ERROR expected one of
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global_asm!("", options(preserves_flags));
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//~^ ERROR expected one of

Diff for: ‎src/test/ui/asm/aarch64/bad-options.stderr

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error: the `nomem` and `readonly` options are mutually exclusive
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--> $DIR/bad-options.rs:8:18
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|
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LL | asm!("", options(nomem, readonly));
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: the `pure` and `noreturn` options are mutually exclusive
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--> $DIR/bad-options.rs:10:18
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|
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LL | asm!("", options(pure, nomem, noreturn));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: asm with the `pure` option must have at least one output
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--> $DIR/bad-options.rs:10:18
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|
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LL | asm!("", options(pure, nomem, noreturn));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: asm with the `pure` option must have at least one output
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--> $DIR/bad-options.rs:13:33
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|
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LL | asm!("{}", in(reg) foo, options(pure, nomem));
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| ^^^^^^^^^^^^^^^^^^^^
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error: asm outputs are not allowed with the `noreturn` option
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--> $DIR/bad-options.rs:15:20
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|
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LL | asm!("{}", out(reg) foo, options(noreturn));
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| ^^^^^^^^^^^^
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error: asm with `clobber_abi` must specify explicit registers for outputs
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--> $DIR/bad-options.rs:22:20
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|
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LL | asm!("{}", out(reg) foo, clobber_abi("C"));
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| ^^^^^^^^^^^^ ---------------- clobber_abi
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| |
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| generic outputs
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error: expected one of `)`, `att_syntax`, or `raw`, found `nomem`
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--> $DIR/bad-options.rs:28:25
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|
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LL | global_asm!("", options(nomem));
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| ^^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: expected one of `)`, `att_syntax`, or `raw`, found `readonly`
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--> $DIR/bad-options.rs:30:25
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|
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LL | global_asm!("", options(readonly));
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| ^^^^^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: expected one of `)`, `att_syntax`, or `raw`, found `noreturn`
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--> $DIR/bad-options.rs:32:25
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|
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LL | global_asm!("", options(noreturn));
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| ^^^^^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: expected one of `)`, `att_syntax`, or `raw`, found `pure`
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--> $DIR/bad-options.rs:34:25
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|
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LL | global_asm!("", options(pure));
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| ^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: expected one of `)`, `att_syntax`, or `raw`, found `nostack`
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--> $DIR/bad-options.rs:36:25
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|
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LL | global_asm!("", options(nostack));
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| ^^^^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: expected one of `)`, `att_syntax`, or `raw`, found `preserves_flags`
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--> $DIR/bad-options.rs:38:25
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|
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LL | global_asm!("", options(preserves_flags));
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| ^^^^^^^^^^^^^^^ expected one of `)`, `att_syntax`, or `raw`
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error: invalid ABI for `clobber_abi`
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--> $DIR/bad-options.rs:20:18
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|
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LL | asm!("", clobber_abi("foo"));
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| ^^^^^^^^^^^^^^^^^^
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|
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= note: the following ABIs are supported on this target: `C`, `system`, `efiapi`
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error: aborting due to 13 previous errors
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Diff for: ‎src/test/ui/asm/aarch64/bad-reg.rs

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// only-aarch64
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// compile-flags: -C target-feature=+fp
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#![feature(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("x18") foo);
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//~^ ERROR invalid register `x18`: x18 is used as a reserved register on some targets and cannot be used as an operand for inline asm
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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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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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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 `x0` 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 `v0` conflicts with register `v0`
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asm!("", in("v0") foo, out("q0") bar);
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//~^ ERROR register `v0` conflicts with register `v0`
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asm!("", in("v0") foo, lateout("q0") bar);
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}
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}

Diff for: ‎src/test/ui/asm/aarch64/bad-reg.stderr

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error: invalid register class `foo`: unknown register class
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--> $DIR/bad-reg.rs:12:20
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|
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LL | asm!("{}", in(foo) foo);
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| ^^^^^^^^^^^
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error: invalid register `foo`: unknown register
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--> $DIR/bad-reg.rs:14:18
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|
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LL | asm!("", in("foo") foo);
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| ^^^^^^^^^^^^^
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error: invalid asm template modifier for this register class
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--> $DIR/bad-reg.rs:16:15
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|
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LL | asm!("{:z}", in(reg) foo);
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| ^^^^ ----------- argument
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| |
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| template modifier
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|
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= note: the `reg` register class supports the following template modifiers: `w`, `x`
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error: invalid asm template modifier for this register class
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--> $DIR/bad-reg.rs:18:15
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|
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LL | asm!("{:r}", in(vreg) foo);
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| ^^^^ ------------ argument
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| |
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| template modifier
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|
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= note: the `vreg` register class supports the following template modifiers: `b`, `h`, `s`, `d`, `q`, `v`
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error: invalid asm template modifier for this register class
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--> $DIR/bad-reg.rs:20:15
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|
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LL | asm!("{:r}", in(vreg_low16) foo);
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| ^^^^ ------------------ argument
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| |
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| template modifier
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|
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= note: the `vreg_low16` register class supports the following template modifiers: `b`, `h`, `s`, `d`, `q`, `v`
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error: asm template modifiers are not allowed for `const` arguments
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--> $DIR/bad-reg.rs:22:15
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|
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LL | asm!("{:a}", const 0);
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| ^^^^ ------- argument
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| |
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| template modifier
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error: asm template modifiers are not allowed for `sym` arguments
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--> $DIR/bad-reg.rs:24:15
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|
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LL | asm!("{:a}", sym main);
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| ^^^^ -------- argument
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| |
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| template modifier
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error: invalid register `x29`: the frame pointer cannot be used as an operand for inline asm
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--> $DIR/bad-reg.rs:26:18
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|
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LL | asm!("", in("x29") foo);
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| ^^^^^^^^^^^^^
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error: invalid register `sp`: the stack pointer cannot be used as an operand for inline asm
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--> $DIR/bad-reg.rs:28:18
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|
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LL | asm!("", in("sp") foo);
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| ^^^^^^^^^^^^
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error: invalid register `xzr`: the zero register cannot be used as an operand for inline asm
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--> $DIR/bad-reg.rs:30:18
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|
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LL | asm!("", in("xzr") foo);
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| ^^^^^^^^^^^^^
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error: invalid register `x18`: x18 is used as a reserved register on some targets and cannot be used as an operand for inline asm
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--> $DIR/bad-reg.rs:32:18
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|
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LL | asm!("", in("x18") foo);
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| ^^^^^^^^^^^^^
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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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--> $DIR/bad-reg.rs:34:18
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|
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LL | asm!("", in("x19") foo);
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| ^^^^^^^^^^^^^
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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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--> $DIR/bad-reg.rs:37:18
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|
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LL | asm!("", in("p0") foo);
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| ^^^^^^^^^^^^
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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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--> $DIR/bad-reg.rs:40:20
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|
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LL | asm!("{}", in(preg) foo);
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| ^^^^^^^^^^^^
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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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--> $DIR/bad-reg.rs:42:20
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|
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LL | asm!("{}", out(preg) _);
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| ^^^^^^^^^^^
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error: register `x0` conflicts with register `x0`
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--> $DIR/bad-reg.rs:48:32
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|
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LL | asm!("", in("x0") foo, in("w0") bar);
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| ------------ ^^^^^^^^^^^^ register `x0`
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| |
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| register `x0`
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error: register `x0` conflicts with register `x0`
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--> $DIR/bad-reg.rs:50:32
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|
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LL | asm!("", in("x0") foo, out("x0") bar);
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| ------------ ^^^^^^^^^^^^^ register `x0`
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| |
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| register `x0`
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|
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help: use `lateout` instead of `out` to avoid conflict
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--> $DIR/bad-reg.rs:50:18
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|
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LL | asm!("", in("x0") foo, out("x0") bar);
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| ^^^^^^^^^^^^
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error: register `v0` conflicts with register `v0`
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--> $DIR/bad-reg.rs:53:32
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|
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LL | asm!("", in("v0") foo, in("q0") bar);
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| ------------ ^^^^^^^^^^^^ register `v0`
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| |
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| register `v0`
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error: register `v0` conflicts with register `v0`
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--> $DIR/bad-reg.rs:55:32
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|
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LL | asm!("", in("v0") foo, out("q0") bar);
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| ------------ ^^^^^^^^^^^^^ register `v0`
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| |
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| register `v0`
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|
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help: use `lateout` instead of `out` to avoid conflict
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--> $DIR/bad-reg.rs:55:18
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|
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LL | asm!("", in("v0") foo, out("q0") bar);
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| ^^^^^^^^^^^^
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error: aborting due to 19 previous errors
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Diff for: ‎src/test/ui/asm/aarch64/const.rs

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// min-llvm-version: 10.0.1
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// only-aarch64
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// run-pass
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// revisions: mirunsafeck thirunsafeck
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// [thirunsafeck]compile-flags: -Z thir-unsafeck
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#![feature(asm, global_asm)]
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fn const_generic<const X: usize>() -> usize {
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unsafe {
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let a: usize;
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asm!("mov {}, {}", out(reg) a, const X);
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a
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}
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}
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const fn constfn(x: usize) -> usize {
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x
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}
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fn main() {
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unsafe {
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let a: usize;
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asm!("mov {}, {}", out(reg) a, const 5);
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assert_eq!(a, 5);
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let b: usize;
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asm!("mov {}, {}", out(reg) b, const constfn(5));
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assert_eq!(b, 5);
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let c: usize;
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asm!("mov {}, {}", out(reg) c, const constfn(5) + constfn(5));
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assert_eq!(c, 10);
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}
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let d = const_generic::<5>();
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assert_eq!(d, 5);
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}
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global_asm!("mov x0, {}", const 5);
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global_asm!("mov x0, {}", const constfn(5));
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global_asm!("mov x0, {}", const constfn(5) + constfn(5));

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