Rollup merge of #116576 - eduardosm:const-eval-wasm-target-features, r=RalfJung

const-eval: allow calling functions with targat features disabled at compile time in WASM

This is not unsafe on WASM, see https://github.com/rust-lang/rust/pull/84988

r? `@RalfJung`

Fixes https://github.com/rust-lang/rust/issues/116516

1 files changed, 14 insertions, 0 deletions

diff --git a/tests/ui/consts/const-eval/const_fn_target_feature_wasm.rs b/tests/ui/consts/const-eval/const_fn_target_feature_wasm.rs
new file mode 100644
index 00000000000..c1460fdd9ec
--- /dev/null
+++ b/tests/ui/consts/const-eval/const_fn_target_feature_wasm.rs
@@ -0,0 +1,14 @@
+// only-wasm32
+// compile-flags:-C target-feature=-simd128
+// build-pass
+
+#![crate_type = "lib"]
+
+#[cfg(target_feature = "simd128")]
+compile_error!("simd128 target feature should be disabled");
+
+// Calling functions with `#[target_feature]` is not unsound on WASM, see #84988
+const A: () = simd128_fn();
+
+#[target_feature(enable = "simd128")]
+const fn simd128_fn() {}