From 56ce971d2e7287198b33840e09d410cd66479a49 Mon Sep 17 00:00:00 2001
From: Elichai Turkel <elichai.turkel@gmail.com>
Date: Mon, 10 Aug 2026 10:23:07 +0300
Subject: [PATCH] cpufeatures: Enable compile time target features under miri

---
 cpufeatures/CHANGELOG.md | 4 ++++
 cpufeatures/src/miri.rs  | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/cpufeatures/CHANGELOG.md b/cpufeatures/CHANGELOG.md
index 50fc3ede..90aa8153 100644
--- a/cpufeatures/CHANGELOG.md
+++ b/cpufeatures/CHANGELOG.md
@@ -10,8 +10,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Detection of the `avx` target feature ([#1511])
 - Use `::MAX` constant instead of deprecated `::max_value()` associated method ([#1515])
 
+### Changed
+- Use compile-time target feature detection under Miri ([#1513])
+
 [#1511]: https://github.com/RustCrypto/utils/pull/1511
 [#1515]: https://github.com/RustCrypto/utils/pull/1515
+[#1513]: https://github.com/RustCrypto/utils/pull/1513
 
 ## 0.3.0 (2026-02-05)
 ### Added
diff --git a/cpufeatures/src/miri.rs b/cpufeatures/src/miri.rs
index 8dff21c1..4d0c94da 100644
--- a/cpufeatures/src/miri.rs
+++ b/cpufeatures/src/miri.rs
@@ -7,7 +7,7 @@
 #[doc(hidden)]
 macro_rules! __unless_target_features {
     ($($tf:tt),+ => $body:expr ) => {
-        false
+        cfg!(all($(target_feature = $tf,)*))
     };
 }