Add tracking issue for ARM CRC32 intrinsics

Author: Amanieu

crates/core_arch/src/aarch64/crc.rs

@@ -15,6 +15,7 @@ use stdarch_test::assert_instr;
 #[inline]
 #[target_feature(enable = "crc")]
 #[cfg_attr(test, assert_instr(crc32x))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32d(crc: u32, data: u64) -> u32 {
     crc32x_(crc, data)
 }
@@ -25,6 +26,7 @@ pub unsafe fn __crc32d(crc: u32, data: u64) -> u32 {
 #[inline]
 #[target_feature(enable = "crc")]
 #[cfg_attr(test, assert_instr(crc32cx))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32cd(crc: u32, data: u64) -> u32 {
     crc32cx_(crc, data)
 }

crates/core_arch/src/aarch64/mod.rs

@@ -17,6 +17,7 @@ mod tme;
 pub use self::tme::*;
 
 mod crc;
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub use self::crc::*;
 
 mod prefetch;

crates/core_arch/src/arm_shared/crc.rs

@@ -30,6 +30,7 @@ use stdarch_test::assert_instr;
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32b))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32b(crc: u32, data: u8) -> u32 {
     crc32b_(crc, data as u32)
 }
@@ -41,6 +42,7 @@ pub unsafe fn __crc32b(crc: u32, data: u8) -> u32 {
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32h))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32h(crc: u32, data: u16) -> u32 {
     crc32h_(crc, data as u32)
 }
@@ -52,6 +54,7 @@ pub unsafe fn __crc32h(crc: u32, data: u16) -> u32 {
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32w))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32w(crc: u32, data: u32) -> u32 {
     crc32w_(crc, data)
 }
@@ -63,6 +66,7 @@ pub unsafe fn __crc32w(crc: u32, data: u32) -> u32 {
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32cb))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32cb(crc: u32, data: u8) -> u32 {
     crc32cb_(crc, data as u32)
 }
@@ -74,6 +78,7 @@ pub unsafe fn __crc32cb(crc: u32, data: u8) -> u32 {
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32ch))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32ch(crc: u32, data: u16) -> u32 {
     crc32ch_(crc, data as u32)
 }
@@ -85,6 +90,7 @@ pub unsafe fn __crc32ch(crc: u32, data: u16) -> u32 {
 #[target_feature(enable = "crc")]
 #[cfg_attr(target_arch = "arm", target_feature(enable = "v8"))]
 #[cfg_attr(test, assert_instr(crc32cw))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub unsafe fn __crc32cw(crc: u32, data: u32) -> u32 {
     crc32cw_(crc, data)
 }

crates/core_arch/src/arm_shared/mod.rs

@@ -59,9 +59,8 @@ pub use self::barrier::*;
 mod hints;
 pub use self::hints::*;
 
-#[cfg(any(target_arch = "aarch64", target_feature = "v7", doc))]
 mod crc;
-#[cfg(any(target_arch = "aarch64", target_feature = "v7", doc))]
+#[unstable(feature = "stdarch_arm_crc32", issue = "117215")]
 pub use crc::*;
 
 // NEON intrinsics are currently broken on big-endian, so don't expose them. (#1484)