From 8bec5bb5adaa1f5a0bc3683fee5f77a5fdac539b Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Sun, 11 May 2025 12:50:48 +0200
Subject: cg_gcc: properly populate cfg(target_features) with -Ctarget-features

---
 compiler/rustc_codegen_llvm/src/llvm_util.rs | 32 ++++++++++++++--------------
 1 file changed, 16 insertions(+), 16 deletions(-)

(limited to 'compiler/rustc_codegen_llvm')

diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs
index ee78c310b0d..bc2165fa829 100644
--- a/compiler/rustc_codegen_llvm/src/llvm_util.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs
@@ -7,6 +7,7 @@ use std::{ptr, slice, str};
 
 use libc::c_int;
 use rustc_codegen_ssa::base::wants_wasm_eh;
+use rustc_codegen_ssa::target_features::cfg_target_feature;
 use rustc_codegen_ssa::{TargetConfig, target_features};
 use rustc_data_structures::fx::FxHashSet;
 use rustc_data_structures::small_c_str::SmallCStr;
@@ -331,24 +332,23 @@ pub(crate) fn target_config(sess: &Session) -> TargetConfig {
     // by LLVM.
     let target_machine = create_informational_target_machine(sess, true);
 
-    let (unstable_target_features, target_features) =
-        target_features::cfg_target_feature(sess, &sess.opts.cg.target_feature, |feature| {
-            if let Some(feat) = to_llvm_features(sess, feature) {
-                // All the LLVM features this expands to must be enabled.
-                for llvm_feature in feat {
-                    let cstr = SmallCStr::new(llvm_feature);
-                    // `LLVMRustHasFeature` is moderately expensive. On targets with many
-                    // features (e.g. x86) these calls take a non-trivial fraction of runtime
-                    // when compiling very small programs.
-                    if !unsafe { llvm::LLVMRustHasFeature(target_machine.raw(), cstr.as_ptr()) } {
-                        return false;
-                    }
+    let (unstable_target_features, target_features) = cfg_target_feature(sess, |feature| {
+        if let Some(feat) = to_llvm_features(sess, feature) {
+            // All the LLVM features this expands to must be enabled.
+            for llvm_feature in feat {
+                let cstr = SmallCStr::new(llvm_feature);
+                // `LLVMRustHasFeature` is moderately expensive. On targets with many
+                // features (e.g. x86) these calls take a non-trivial fraction of runtime
+                // when compiling very small programs.
+                if !unsafe { llvm::LLVMRustHasFeature(target_machine.raw(), cstr.as_ptr()) } {
+                    return false;
                 }
-                true
-            } else {
-                false
             }
-        });
+            true
+        } else {
+            false
+        }
+    });
 
     let mut cfg = TargetConfig {
         target_features,
-- 
cgit 1.4.1-3-g733a5