2 files changed, 5 insertions, 1 deletions
diff --git a/library/stdarch/crates/std_detect/src/detect/arch/arm.rs b/library/stdarch/crates/std_detect/src/detect/arch/arm.rs
index 02bf654945d..96978b70098 100644
--- a/library/stdarch/crates/std_detect/src/detect/arch/arm.rs
+++ b/library/stdarch/crates/std_detect/src/detect/arch/arm.rs
@@ -14,4 +14,6 @@ features! {
     /// ARM Advanced SIMD (NEON) - Aarch32
     @FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] pmull: "pmull";
     /// Polynomial Multiply
+    @FEATURE: #[unstable(feature = "stdsimd", issue = "27731")] crc: "crc";
+    /// CRC32 (Cyclic Redundancy Check)
 }
diff --git a/library/stdarch/crates/std_detect/src/detect/os/linux/arm.rs b/library/stdarch/crates/std_detect/src/detect/os/linux/arm.rs
index a1b28dad70f..f55bc30b849 100644
--- a/library/stdarch/crates/std_detect/src/detect/os/linux/arm.rs
+++ b/library/stdarch/crates/std_detect/src/detect/os/linux/arm.rs
@@ -15,10 +15,11 @@ pub(crate) fn detect_features() -> cache::Initializer {
 
     // The values are part of the platform-specific [asm/hwcap.h][hwcap]
     //
-    // [hwcap]: https://github.com/torvalds/linux/blob/master/arch/arm64/include/uapi/asm/hwcap.h
+    // [hwcap]: https://github.com/torvalds/linux/blob/master/arch/arm/include/uapi/asm/hwcap.h
     if let Ok(auxv) = auxvec::auxv() {
         enable_feature(&mut value, Feature::neon, bit::test(auxv.hwcap, 12));
         enable_feature(&mut value, Feature::pmull, bit::test(auxv.hwcap2, 1));
+        enable_feature(&mut value, Feature::crc, bit::test(auxv.hwcap2, 4));
         return value;
     }
 
@@ -29,6 +30,7 @@ pub(crate) fn detect_features() -> cache::Initializer {
             c.field("Features").has("neon") && !has_broken_neon(&c),
         );
         enable_feature(&mut value, Feature::pmull, c.field("Features").has("pmull"));
+        enable_feature(&mut value, Feature::crc, c.field("Features").has("crc32"));
         return value;
     }
     value