Add power9 and power8 target-features

Author: lu-zero

crates/std_detect/src/detect/arch/powerpc64.rs

@@ -14,4 +14,17 @@ features! {
     @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power8: "power8";
     without cfg check: true;
     /// Power8
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power8_altivec: "power8-altivec";
+    /// Power8 altivec
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power8_vector: "power8-vector";
+    /// Power8 vector
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power8_crypto: "power8-crypto";
+    /// Power8 crypto
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power9: "power9";
+    without cfg check: true;
+    /// Power9
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power9_altivec: "power9-altivec";
+    /// Power9 altivec
+    @FEATURE: #[unstable(feature = "stdarch_powerpc_feature_detection", issue = "111191")] power9_vector: "power9-vector";
+    /// Power9 vector
 }

crates/std_detect/src/detect/os/linux/powerpc.rs

@@ -1,7 +1,7 @@
 //! Run-time feature detection for PowerPC on Linux.
 
 use super::auxvec;
-use crate::detect::{Feature, cache};
+use crate::detect::{cache, Feature};
 
 /// Try to read the features from the auxiliary vector, and if that fails, try
 /// to read them from /proc/cpuinfo.
@@ -21,7 +21,15 @@ pub(crate) fn detect_features() -> cache::Initializer {
         // index of the bit to test like in ARM and Aarch64)
         enable_feature(&mut value, Feature::altivec, auxv.hwcap & 0x10000000 != 0);
         enable_feature(&mut value, Feature::vsx, auxv.hwcap & 0x00000080 != 0);
-        enable_feature(&mut value, Feature::power8, auxv.hwcap2 & 0x80000000 != 0);
+        let power8_features = auxv.hwcap2 & 0x80000000 != 0;
+        enable_feature(&mut value, Feature::power8, power8_features);
+        enable_feature(&mut value, Feature::power8_altivec, power8_features);
+        enable_feature(&mut value, Feature::power8_crypto, power8_features);
+        enable_feature(&mut value, Feature::power8_vector, power8_features);
+        let power9_features = auxv.hwcap2 & 0x00800000 != 0;
+        enable_feature(&mut value, Feature::power9, power9_features);
+        enable_feature(&mut value, Feature::power9_altivec, power9_features);
+        enable_feature(&mut value, Feature::power9_vector, power9_features);
         return value;
     }
 

crates/std_detect/tests/cpu-detection.rs

@@ -340,6 +340,7 @@ fn powerpc64_linux_or_freebsd() {
     println!("altivec: {}", is_powerpc64_feature_detected!("altivec"));
     println!("vsx: {}", is_powerpc64_feature_detected!("vsx"));
     println!("power8: {}", is_powerpc64_feature_detected!("power8"));
+    println!("power9: {}", is_powerpc64_feature_detected!("power9"));
 }
 
 #[test]