Auto merge of #138947 - madsmtm:refactor-apple-versions, r=Noratrieb

Refactor Apple version handling in the compiler

Move various Apple version handling code in the compiler out `rustc_codegen_ssa` and into a place where it can be accessed by `rustc_attr_parsing`, which I found to be necessary when doing https://github.com/rust-lang/rust/pull/136867. Thought I'd split it out to make it easier to land, and to make further changes like https://github.com/rust-lang/rust/pull/131477 have fewer conflicts / PR dependencies.

There should be no functional changes in this PR.

`@rustbot` label O-apple
r? rust-lang/compiler

1 files changed, 2 insertions, 3 deletions

diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs
index 6fb01bf415a..595ac1edd28 100644
--- a/compiler/rustc_driver_impl/src/lib.rs
+++ b/compiler/rustc_driver_impl/src/lib.rs
@@ -34,7 +34,6 @@ use std::time::{Instant, SystemTime};
 use std::{env, str};
 
 use rustc_ast as ast;
-use rustc_codegen_ssa::back::apple;
 use rustc_codegen_ssa::traits::CodegenBackend;
 use rustc_codegen_ssa::{CodegenErrors, CodegenResults};
 use rustc_data_structures::profiling::{
@@ -807,8 +806,8 @@ fn print_crate_info(
                 if sess.target.is_like_darwin {
                     println_info!(
                         "{}={}",
-                        apple::deployment_target_env_var(&sess.target.os),
-                        apple::pretty_version(apple::deployment_target(sess)),
+                        rustc_target::spec::apple::deployment_target_env_var(&sess.target.os),
+                        sess.apple_deployment_target().fmt_pretty(),
                     )
                 } else {
                     #[allow(rustc::diagnostic_outside_of_impl)]