Rollup merge of #90688 - SparrowLii:dotprod, r=Amanieu

enable `dotprod` target feature in arm To implement `vdot` neon insturction in stdarch, we need to enable `dotprod` target feature in arm in rustc. r? `@Amanieu`
rust-lang · Nov 9, 2021 · 753936f · 753936f
2 parents c2f095a + 03f4fe6
commit 753936f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs
@@ -20,6 +20,7 @@ const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[
     ("aes", Some(sym::arm_target_feature)),
     ("sha2", Some(sym::arm_target_feature)),
     ("i8mm", Some(sym::arm_target_feature)),
+    ("dotprod", Some(sym::arm_target_feature)),
     ("v5te", Some(sym::arm_target_feature)),
     ("v6", Some(sym::arm_target_feature)),
     ("v6k", Some(sym::arm_target_feature)),