rustc: fix loongarch64-nosimd lto

app-admin/oma/autobuild/defines

@@ -10,6 +10,3 @@ PKGREP="mirrormgr<=0.11.1"
 
 USECLANG=1
 PKGESS=1
-
-# FIXME: LTO will cause unexpected lsx generation
-NOLTO__LOONGARCH64_NOSIMD=1

app-admin/oma/spec

@@ -1,5 +1,5 @@
 VER=1.20.1
-REL=1
+REL=2
 SRCS="git::commit=tags/v${VER/\~/-}::https://github.com/AOSC-Dev/oma"
 CHKSUMS="SKIP"
 CHKUPDATE="anitya::id=328412"

lang-rust/rustc/autobuild/patches/0001-Add-i486-unknown-linux-gnu-compiler-target.patch

@@ -1,7 +1,7 @@
 From c62e1c6dcc6eeb8db7619b6e30e00657b98f5162 Mon Sep 17 00:00:00 2001
 From: Jiajie Chen <[email protected]>
 Date: Fri, 9 Feb 2024 18:48:33 -0800
-Subject: [PATCH 1/3] Add i486-unknown-linux-gnu compiler target
+Subject: [PATCH 1/4] Add i486-unknown-linux-gnu compiler target
 
 ---
  compiler/rustc_target/src/spec/mod.rs                     | 1 +

lang-rust/rustc/autobuild/patches/0002-ARCHLINUX-compiler-Swap-primary-and-secondary-lib-di.patch

@@ -1,7 +1,7 @@
 From d775cc8d435c34ad5147161c5082775bc1a0f45b Mon Sep 17 00:00:00 2001
 From: "Jan Alexander Steffens (heftig)" <[email protected]>
 Date: Thu, 7 Aug 2025 20:12:53 +0200
-Subject: [PATCH 2/3] ARCHLINUX: compiler: Swap primary and secondary lib dirs
+Subject: [PATCH 2/4] ARCHLINUX: compiler: Swap primary and secondary lib dirs
 
 Arch Linux (editor's note: also AOSC OS) prefers "lib" over "lib64".
 ---

lang-rust/rustc/autobuild/patches/0003-ARCHLINUX-bootstrap-Workaround-for-system-stage0.patch

@@ -1,7 +1,7 @@
 From 4558c3cef1db12eb171c992e12c88a53b79101ed Mon Sep 17 00:00:00 2001
 From: "Jan Alexander Steffens (heftig)" <[email protected]>
 Date: Thu, 7 Aug 2025 19:01:26 +0200
-Subject: [PATCH 3/3] ARCHLINUX: bootstrap: Workaround for system stage0
+Subject: [PATCH 3/4] ARCHLINUX: bootstrap: Workaround for system stage0
 
 See: https://github.com/rust-lang/rust/issues/143735
 ---

lang-rust/rustc/autobuild/patches/0004-compiler-Apply-target-features-to-the-entry-function.patch

@@ -0,0 +1,78 @@
+From 874b53e68456b421b3a0bf7e2f48a2390758e71d Mon Sep 17 00:00:00 2001
+From: WANG Rui <[email protected]>
+Date: Wed, 3 Sep 2025 11:34:15 +0800
+Subject: [PATCH 4/4] compiler: Apply target features to the entry function
+
+---
+ compiler/rustc_codegen_llvm/src/attributes.rs | 21 ++++++++++++-------
+ compiler/rustc_codegen_llvm/src/context.rs    |  8 +++++--
+ 2 files changed, 20 insertions(+), 9 deletions(-)
+
+diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs
+index adb53e0b66..3313b1f4c4 100644
+--- a/compiler/rustc_codegen_llvm/src/attributes.rs
++++ b/compiler/rustc_codegen_llvm/src/attributes.rs
+@@ -302,6 +302,19 @@ pub(crate) fn tune_cpu_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribu
+         .map(|tune_cpu| llvm::CreateAttrStringValue(cx.llcx, "tune-cpu", tune_cpu))
+ }
+
++/// Get the `target-features` LLVM attribute.
++pub(crate) fn target_features_attr<'ll>(
++    cx: &CodegenCx<'ll, '_>,
++    function_features: Vec<String>,
++) -> Option<&'ll Attribute> {
++    let global_features = cx.tcx.global_backend_features(()).iter().map(String::as_str);
++    let function_features = function_features.iter().map(String::as_str);
++    let target_features =
++        global_features.chain(function_features).intersperse(",").collect::<String>();
++    (!target_features.is_empty())
++        .then(|| llvm::CreateAttrStringValue(cx.llcx, "target-features", &target_features))
++}
++
+ /// Get the `NonLazyBind` LLVM attribute,
+ /// if the codegen options allow skipping the PLT.
+ pub(crate) fn non_lazy_bind_attr<'ll>(cx: &CodegenCx<'ll, '_>) -> Option<&'ll Attribute> {
+@@ -535,13 +548,7 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>(
+         }
+     }
+
+-    let global_features = cx.tcx.global_backend_features(()).iter().map(|s| s.as_str());
+-    let function_features = function_features.iter().map(|s| s.as_str());
+-    let target_features: String =
+-        global_features.chain(function_features).intersperse(",").collect();
+-    if !target_features.is_empty() {
+-        to_add.push(llvm::CreateAttrStringValue(cx.llcx, "target-features", &target_features));
+-    }
++    to_add.extend(target_features_attr(cx, function_features));
+
+     attributes::apply_to_llfn(llfn, Function, &to_add);
+ }
+diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs
+index 0324dff6ff..55d335923d 100644
+--- a/compiler/rustc_codegen_llvm/src/context.rs
++++ b/compiler/rustc_codegen_llvm/src/context.rs
+@@ -822,7 +822,7 @@ impl<'ll, 'tcx> MiscCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> {
+     fn declare_c_main(&self, fn_type: Self::Type) -> Option<Self::Function> {
+         let entry_name = self.sess().target.entry_name.as_ref();
+         if self.get_declared_value(entry_name).is_none() {
+-            Some(self.declare_entry_fn(
++            let llfn = self.declare_entry_fn(
+                 entry_name,
+                 llvm::CallConv::from_conv(
+                     self.sess().target.entry_abi,
+@@ -830,7 +830,11 @@ impl<'ll, 'tcx> MiscCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> {
+                 ),
+                 llvm::UnnamedAddr::Global,
+                 fn_type,
+-            ))
++            );
++            if let Some(attr) = attributes::target_features_attr(self, vec![]) {
++                attributes::apply_to_llfn(llfn, llvm::AttributePlace::Function, &[attr])
++            }
++            Some(llfn)
+         } else {
+             // If the symbol already exists, it is an error: for example, the user wrote
+             // #[no_mangle] extern "C" fn main(..) {..}
+-- 
+2.51.0
+

lang-rust/rustc/spec

@@ -1,5 +1,5 @@
 VER=1.89.0
-REL=1
+REL=2
 # Note: Uncomment this if we have the last version built and ready.
 SRCS="tbl::https://static.rust-lang.org/dist/rustc-${VER}-src.tar.xz"
 CHKSUMS="sha256::0b9d55610d8270e06c44f459d1e2b7918a5e673809c592abed9b9c600e33d95a"