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52f7a218fb
The `asm!` and `global_asm!` macros require their operands to appear strictly in the following order: - Template strings - Positional operands - Named operands - Explicit register operands - `clobber_abi` - `options` This is overly strict and can be inconvienent when building complex `asm!` statements with macros. This PR relaxes the ordering requirements as follows: - Template strings must still come before all other operands. - Positional operands must still come before named and explicit register operands. - Named and explicit register operands can be freely mixed. - `options` and `clobber_abi` can appear in any position.
203 lines
6.0 KiB
Plaintext
203 lines
6.0 KiB
Plaintext
error: invalid reference to argument at index 0
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--> $DIR/bad-template.rs:31:15
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LL | asm!("{}");
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| ^^ from here
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= note: no arguments were given
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error: invalid reference to argument at index 1
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--> $DIR/bad-template.rs:33:15
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LL | asm!("{1}", in(reg) foo);
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| ^^^ from here
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= note: there is 1 argument
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error: argument never used
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--> $DIR/bad-template.rs:33:21
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LL | asm!("{1}", in(reg) foo);
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| ^^^^^^^^^^^ argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {0} */"`
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error: there is no argument named `a`
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--> $DIR/bad-template.rs:36:16
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LL | asm!("{a}");
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| ^
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error: invalid reference to argument at index 0
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--> $DIR/bad-template.rs:38:15
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LL | asm!("{}", a = in(reg) foo);
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| ^^ --------------- named argument
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| |
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| from here
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= note: no positional arguments were given
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note: named arguments cannot be referenced by position
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--> $DIR/bad-template.rs:38:20
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LL | asm!("{}", a = in(reg) foo);
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| ^^^^^^^^^^^^^^^
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error: named argument never used
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--> $DIR/bad-template.rs:38:20
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LL | asm!("{}", a = in(reg) foo);
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| ^^^^^^^^^^^^^^^ named argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
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error: invalid reference to argument at index 1
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--> $DIR/bad-template.rs:41:15
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LL | asm!("{1}", a = in(reg) foo);
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| ^^^ from here
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= note: no positional arguments were given
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error: named argument never used
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--> $DIR/bad-template.rs:41:21
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LL | asm!("{1}", a = in(reg) foo);
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| ^^^^^^^^^^^^^^^ named argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
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error: invalid reference to argument at index 0
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--> $DIR/bad-template.rs:48:15
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LL | asm!("{}", in("x0") foo);
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| ^^ ------------ explicit register argument
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| |
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| from here
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= note: no positional arguments were given
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note: explicit register arguments cannot be used in the asm template
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--> $DIR/bad-template.rs:48:20
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LL | asm!("{}", in("x0") foo);
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| ^^^^^^^^^^^^
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help: use the register name directly in the assembly code
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--> $DIR/bad-template.rs:48:20
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LL | asm!("{}", in("x0") foo);
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| ^^^^^^^^^^^^
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error: asm template modifier must be a single character
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--> $DIR/bad-template.rs:50:17
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LL | asm!("{:foo}", in(reg) foo);
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| ^^^
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error: multiple unused asm arguments
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--> $DIR/bad-template.rs:53:18
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LL | asm!("", in(reg) 0, in(reg) 1);
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| ^^^^^^^^^ ^^^^^^^^^ argument never used
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| |
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| argument never used
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= help: if these arguments are intentionally unused, consider using them in an asm comment: `"/* {0} {1} */"`
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error: invalid reference to argument at index 0
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--> $DIR/bad-template.rs:59:14
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LL | global_asm!("{}");
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| ^^ from here
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= note: no arguments were given
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error: invalid reference to argument at index 1
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--> $DIR/bad-template.rs:61:14
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LL | global_asm!("{1}", const FOO);
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| ^^^ from here
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= note: there is 1 argument
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error: argument never used
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--> $DIR/bad-template.rs:61:20
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LL | global_asm!("{1}", const FOO);
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| ^^^^^^^^^ argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {0} */"`
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error: there is no argument named `a`
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--> $DIR/bad-template.rs:64:15
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LL | global_asm!("{a}");
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| ^
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error: invalid reference to argument at index 0
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--> $DIR/bad-template.rs:66:14
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LL | global_asm!("{}", a = const FOO);
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| ^^ ------------- named argument
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| |
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| from here
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= note: no positional arguments were given
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note: named arguments cannot be referenced by position
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--> $DIR/bad-template.rs:66:19
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LL | global_asm!("{}", a = const FOO);
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| ^^^^^^^^^^^^^
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error: named argument never used
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--> $DIR/bad-template.rs:66:19
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LL | global_asm!("{}", a = const FOO);
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| ^^^^^^^^^^^^^ named argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
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error: invalid reference to argument at index 1
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--> $DIR/bad-template.rs:69:14
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LL | global_asm!("{1}", a = const FOO);
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| ^^^ from here
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= note: no positional arguments were given
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error: named argument never used
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--> $DIR/bad-template.rs:69:20
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LL | global_asm!("{1}", a = const FOO);
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| ^^^^^^^^^^^^^ named argument never used
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= help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {a} */"`
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error: asm template modifier must be a single character
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--> $DIR/bad-template.rs:72:16
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LL | global_asm!("{:foo}", const FOO);
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| ^^^
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error: multiple unused asm arguments
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--> $DIR/bad-template.rs:74:17
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LL | global_asm!("", const FOO, const FOO);
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| ^^^^^^^^^ ^^^^^^^^^ argument never used
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| |
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| argument never used
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= help: if these arguments are intentionally unused, consider using them in an asm comment: `"/* {0} {1} */"`
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warning: formatting may not be suitable for sub-register argument
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--> $DIR/bad-template.rs:50:15
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LL | asm!("{:foo}", in(reg) foo);
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| ^^^^^^ --- for this argument
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= help: use `{0:w}` to have the register formatted as `w0`
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= help: or use `{0:x}` to keep the default formatting of `x0`
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= note: `#[warn(asm_sub_register)]` on by default
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error: aborting due to 21 previous errors; 1 warning emitted
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