cpu: Clarify Windows static feature detection.

briansmith · Oct 29, 2022 · 2a383a3 · 2a383a3
1 parent 42472a0
commit 2a383a3
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/cpu/arm.rs b/src/cpu/arm.rs
@@ -116,7 +116,8 @@ pub fn setup() {
 #[cfg(all(target_os = "windows", target_arch = "aarch64"))]
 pub fn setup() {
     // We do not need to check for the presence of NEON, as Armv8-A always has it
-    let mut features = NEON.mask;
+    const _ASSERT_NEON_DETECTED: () = assert!((ARMCAP_STATIC & NEON.mask) == NEON.mask);
+    let mut features = ARMCAP_STATIC;
 
     let result = unsafe {
         winapi::um::processthreadsapi::IsProcessorFeaturePresent(