Rollup merge of #105408 - cuviper:help-rpitirpit, r=compiler-errors

[rust.git] / compiler / rustc_codegen_ssa / src / base.rs

diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs
index c1411690f8289883f8cc391bffd19018b797fad0..4f396e970ad70969228cae3756eec5273af4a483 100644 (file)
--- a/compiler/rustc_codegen_ssa/src/base.rs
+++ b/compiler/rustc_codegen_ssa/src/base.rs
@@ -833,20 +833,30 @@ pub fn new(tcx: TyCtxt<'_>, target_cpu: String) -> CrateInfo {
         //
         // In order to get this left-to-right dependency ordering, we use the reverse
         // postorder of all crates putting the leaves at the right-most positions.
-        let used_crates = tcx
+        let mut compiler_builtins = None;
+        let mut used_crates: Vec<_> = tcx
             .postorder_cnums(())
             .iter()
             .rev()
             .copied()
-            .filter(|&cnum| !tcx.dep_kind(cnum).macros_only())
+            .filter(|&cnum| {
+                let link = !tcx.dep_kind(cnum).macros_only();
+                if link && tcx.is_compiler_builtins(cnum) {
+                    compiler_builtins = Some(cnum);
+                    return false;
+                }
+                link
+            })
             .collect();
+        // `compiler_builtins` are always placed last to ensure that they're linked correctly.
+        used_crates.extend(compiler_builtins);
 
         let mut info = CrateInfo {
             target_cpu,
             exported_symbols,
             linked_symbols,
             local_crate_name,
-            compiler_builtins: None,
+            compiler_builtins,
             profiler_runtime: None,
             is_no_builtins: Default::default(),
             native_libraries: Default::default(),
@@ -872,9 +882,6 @@ pub fn new(tcx: TyCtxt<'_>, target_cpu: String) -> CrateInfo {
 
             let used_crate_source = tcx.used_crate_source(cnum);
             info.used_crate_source.insert(cnum, used_crate_source.clone());
-            if tcx.is_compiler_builtins(cnum) {
-                info.compiler_builtins = Some(cnum);
-            }
             if tcx.is_profiler_runtime(cnum) {
                 info.profiler_runtime = Some(cnum);
             }