Merge pull request #5644 from roc-lang/aarch64-code-model-fix

aarch64 linux error fix

crates/compiler/build/src/target.rs

@@ -149,20 +149,17 @@ pub fn target_machine(
 
     init_arch(target);
 
-    let code_model = match target.architecture {
-        // LLVM 12 will not compile our programs without a large code model.
-        // The reason is not totally clear to me, but my guess is a few special-cases in
-        //   llvm/lib/Target/AArch64/AArch64ISelLowering.cpp (instructions)
-        //   llvm/lib/Target/AArch64/AArch64Subtarget.cpp (GoT tables)
-        // Revisit when upgrading to LLVM 13.
-        Architecture::Aarch64(..) => CodeModel::Large,
-        _ => CodeModel::Default,
-    };
+    // workaround for issue:
+    #[cfg(all(target_arch = "aarch64", target_os = "macos"))]
+    let code_model = CodeModel::Large;
+
+    #[cfg(not(all(target_arch = "aarch64", target_os = "macos")))]
+    let code_model = CodeModel::Default;
 
     Target::from_name(arch).unwrap().create_target_machine(
         &TargetTriple::create(target_triple_str(target)),
         "generic",
-        "", // TODO: this probably should be TargetMachine::get_host_cpu_features() to enable all features.
+        "",
         opt,
         reloc,
         code_model,