From 400a690b5f99cd345b679014fe0c821d3847bcd3 Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Sat, 9 Nov 2024 03:17:24 +0900
Subject: Add v9 and leoncasa target feature to sparc

---
 compiler/rustc_codegen_llvm/src/llvm_util.rs | 3 +++
 compiler/rustc_feature/src/unstable.rs       | 1 +
 compiler/rustc_span/src/symbol.rs            | 1 +
 compiler/rustc_target/src/target_features.rs | 9 +++++++++
 4 files changed, 14 insertions(+)

(limited to 'compiler')

diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index 6f2d86cc601..b5bd5dbde81 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -228,6 +228,8 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
         "x86"
     } else if sess.target.arch == "arm64ec" {
         "aarch64"
+    } else if sess.target.arch == "sparc64" {
+        "sparc"
     } else {
         &*sess.target.arch
     };
@@ -280,6 +282,7 @@ pub(crate) fn to_llvm_features<'a>(sess: &Session, s: &'a str) -> Option<LLVMFea
         // Support for `wide-arithmetic` will first land in LLVM 20 as part of
         // llvm/llvm-project#111598
         ("wasm32" | "wasm64", "wide-arithmetic") if get_version() < (20, 0, 0) => None,
+        ("sparc", "leoncasa") => Some(LLVMFeature::new("hasleoncasa")),
         (_, s) => Some(LLVMFeature::new(s)),
     }
 }
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index 5f83c211b38..8326d0031ea 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -336,6 +336,7 @@ declare_features! (
     (unstable, riscv_target_feature, "1.45.0", Some(44839)),
     (unstable, rtm_target_feature, "1.35.0", Some(44839)),
     (unstable, s390x_target_feature, "1.82.0", Some(44839)),
+    (unstable, sparc_target_feature, "CURRENT_RUSTC_VERSION", Some(132783)),
     (unstable, sse4a_target_feature, "1.27.0", Some(44839)),
     (unstable, tbm_target_feature, "1.27.0", Some(44839)),
     (unstable, wasm_target_feature, "1.30.0", Some(44839)),
diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 21a74bd4020..e18e0a31c66 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -1868,6 +1868,7 @@ symbols! {
         slice_patterns,
         slicing_syntax,
         soft,
+        sparc_target_feature,
         specialization,
         speed,
         spotlight,
diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs
index 96f1e257bb5..b649c0353a4 100644
--- a/compiler/rustc_target/src/target_features.rs
+++ b/compiler/rustc_target/src/target_features.rs
@@ -545,6 +545,13 @@ const IBMZ_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[
     // tidy-alphabetical-end
 ];
 
+const SPARC_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[
+    // tidy-alphabetical-start
+    ("leoncasa", Unstable(sym::sparc_target_feature), &[]),
+    ("v9", Unstable(sym::sparc_target_feature), &[]),
+    // tidy-alphabetical-end
+];
+
 /// When rustdoc is running, provide a list of all known features so that all their respective
 /// primitives may be documented.
 ///
@@ -563,6 +570,7 @@ pub fn all_rust_features() -> impl Iterator<Item = (&'static str, Stability)> {
         .chain(CSKY_FEATURES)
         .chain(LOONGARCH_FEATURES)
         .chain(IBMZ_FEATURES)
+        .chain(SPARC_FEATURES)
         .cloned()
         .map(|(f, s, _)| (f, s))
 }
@@ -582,6 +590,7 @@ impl super::spec::Target {
             "csky" => CSKY_FEATURES,
             "loongarch64" => LOONGARCH_FEATURES,
             "s390x" => IBMZ_FEATURES,
+            "sparc" | "sparc64" => SPARC_FEATURES,
             _ => &[],
         }
     }
-- 
cgit 1.4.1-3-g733a5