Auto merge of #144062 - bjorn3:lto_refactors2, r=davidtwco

Various refactors to the LTO handling code (part 2)

Continuing from https://github.com/rust-lang/rust/pull/143388 this removes a bit of dead code and moves the LTO symbol export calculation from individual backends to cg_ssa.

1 files changed, 17 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs
index 9040915b6af..3d787d8bdbd 100644
--- a/compiler/rustc_codegen_ssa/src/errors.rs
+++ b/compiler/rustc_codegen_ssa/src/errors.rs
@@ -1294,3 +1294,20 @@ pub(crate) struct FeatureNotValid<'a> {
     #[help]
     pub plus_hint: bool,
 }
+
+#[derive(Diagnostic)]
+#[diag(codegen_ssa_lto_disallowed)]
+pub(crate) struct LtoDisallowed;
+
+#[derive(Diagnostic)]
+#[diag(codegen_ssa_lto_dylib)]
+pub(crate) struct LtoDylib;
+
+#[derive(Diagnostic)]
+#[diag(codegen_ssa_lto_proc_macro)]
+pub(crate) struct LtoProcMacro;
+
+#[derive(Diagnostic)]
+#[diag(codegen_ssa_dynamic_linking_with_lto)]
+#[note]
+pub(crate) struct DynamicLinkingWithLTO;