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Correct alignment of atomic types and (re)add Atomic{I,U}128

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LLVM requires that atomic loads and stores be aligned to at least the size of the type.
This commit is contained in:
Oliver Middleton 2018-09-08 12:50:19 +01:00 • committed by Simonas Kazlauskas
parent 10f42cbde0
commit 01674fbe06
8 changed files with 169 additions and 20 deletions
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12
src/test/ui/feature-gates/feature-gate-cfg-target-has-atomic.rs
View file

@ -61,6 +61,16 @@ pub unsafe fn atomic_u64(x: *mut u64) {
pub unsafe fn atomic_i64(x: *mut i64) {
atomic_xadd(x, 1);
}
#[cfg(target_has_atomic = "128")]
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
pub unsafe fn atomic_u128(x: *mut u128) {
atomic_xadd(x, 1);
}
#[cfg(target_has_atomic = "128")]
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
pub unsafe fn atomic_i128(x: *mut i128) {
atomic_xadd(x, 1);
}
#[cfg(target_has_atomic = "ptr")]
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
pub unsafe fn atomic_usize(x: *mut usize) {
@ -81,6 +91,8 @@ fn main() {
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
cfg!(target_has_atomic = "64");
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
cfg!(target_has_atomic = "128");
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
cfg!(target_has_atomic = "ptr");
//~^ ERROR `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
}

38
src/test/ui/feature-gates/feature-gate-cfg-target-has-atomic.stderr
View file

@ -65,7 +65,7 @@ LL | #[cfg(target_has_atomic = "64")]
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:64:7
|
LL | #[cfg(target_has_atomic = "ptr")]
LL | #[cfg(target_has_atomic = "128")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
@ -73,13 +73,29 @@ LL | #[cfg(target_has_atomic = "ptr")]
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:69:7
|
LL | #[cfg(target_has_atomic = "128")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:74:7
|
LL | #[cfg(target_has_atomic = "ptr")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:76:10
--> $DIR/feature-gate-cfg-target-has-atomic.rs:79:7
|
LL | #[cfg(target_has_atomic = "ptr")]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:86:10
|
LL | cfg!(target_has_atomic = "8");
| ^^^^^^^^^^^^^^^^^^^^^^^
@ -87,7 +103,7 @@ LL | cfg!(target_has_atomic = "8");
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:78:10
--> $DIR/feature-gate-cfg-target-has-atomic.rs:88:10
|
LL | cfg!(target_has_atomic = "16");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -95,7 +111,7 @@ LL | cfg!(target_has_atomic = "16");
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:80:10
--> $DIR/feature-gate-cfg-target-has-atomic.rs:90:10
|
LL | cfg!(target_has_atomic = "32");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -103,7 +119,7 @@ LL | cfg!(target_has_atomic = "32");
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:82:10
--> $DIR/feature-gate-cfg-target-has-atomic.rs:92:10
|
LL | cfg!(target_has_atomic = "64");
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -111,13 +127,21 @@ LL | cfg!(target_has_atomic = "64");
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:84:10
--> $DIR/feature-gate-cfg-target-has-atomic.rs:94:10
|
LL | cfg!(target_has_atomic = "128");
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error[E0658]: `cfg(target_has_atomic)` is experimental and subject to change (see issue #32976)
--> $DIR/feature-gate-cfg-target-has-atomic.rs:96:10
|
LL | cfg!(target_has_atomic = "ptr");
| ^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: add #![feature(cfg_target_has_atomic)] to the crate attributes to enable
error: aborting due to 15 previous errors
error: aborting due to 18 previous errors
For more information about this error, try `rustc --explain E0658`.