Add new_regular and new_allocator to ModuleCodegen

Author: dianqk

Diff for: compiler/rustc_codegen_gcc/src/back/lto.rs

@@ -632,17 +632,16 @@ pub unsafe fn optimize_thin_module(
             Arc::new(SyncContext::new(context))
         }
     };
-    let module = ModuleCodegen {
-        module_llvm: GccContext {
+    let module = ModuleCodegen::new_regular(
+        thin_module.name().to_string(),
+        GccContext {
             context,
             should_combine_object_files,
             // TODO(antoyo): use the correct relocation model here.
             relocation_model: RelocModel::Pic,
             temp_dir: None,
         },
-        name: thin_module.name().to_string(),
-        kind: ModuleKind::Regular,
-    };
+    );
     /*{
         let target = &*module.module_llvm.tm;
         let llmod = module.module_llvm.llmod();

Diff for: compiler/rustc_codegen_gcc/src/base.rs

@@ -4,10 +4,10 @@ use std::sync::Arc;
 use std::time::Instant;
 
 use gccjit::{CType, Context, FunctionType, GlobalKind};
+use rustc_codegen_ssa::ModuleCodegen;
 use rustc_codegen_ssa::base::maybe_create_entry_wrapper;
 use rustc_codegen_ssa::mono_item::MonoItemExt;
 use rustc_codegen_ssa::traits::DebugInfoCodegenMethods;
-use rustc_codegen_ssa::{ModuleCodegen, ModuleKind};
 use rustc_middle::dep_graph;
 use rustc_middle::mir::mono::Linkage;
 #[cfg(feature = "master")]
@@ -237,16 +237,15 @@ pub fn compile_codegen_unit(
             }
         }
 
-        ModuleCodegen {
-            name: cgu_name.to_string(),
-            module_llvm: GccContext {
+        ModuleCodegen::new_regular(
+            cgu_name.to_string(),
+            GccContext {
                 context: Arc::new(SyncContext::new(context)),
                 relocation_model: tcx.sess.relocation_model(),
                 should_combine_object_files: false,
                 temp_dir: None,
             },
-            kind: ModuleKind::Regular,
-        }
+        )
     }
 
     (module, cost)

Diff for: compiler/rustc_codegen_llvm/src/back/lto.rs

@@ -306,11 +306,8 @@ fn fat_lto(
             assert!(!serialized_modules.is_empty(), "must have at least one serialized module");
             let (buffer, name) = serialized_modules.remove(0);
             info!("no in-memory regular modules to choose from, parsing {:?}", name);
-            ModuleCodegen {
-                module_llvm: ModuleLlvm::parse(cgcx, &name, buffer.data(), dcx)?,
-                name: name.into_string().unwrap(),
-                kind: ModuleKind::Regular,
-            }
+            let llvm_module = ModuleLlvm::parse(cgcx, &name, buffer.data(), dcx)?;
+            ModuleCodegen::new_regular(name.into_string().unwrap(), llvm_module)
         }
     };
     {
@@ -778,11 +775,7 @@ pub(crate) unsafe fn optimize_thin_module(
     // crates but for locally codegened modules we may be able to reuse
     // that LLVM Context and Module.
     let module_llvm = ModuleLlvm::parse(cgcx, module_name, thin_module.data(), dcx)?;
-    let mut module = ModuleCodegen {
-        module_llvm,
-        name: thin_module.name().to_string(),
-        kind: ModuleKind::Regular,
-    };
+    let mut module = ModuleCodegen::new_regular(thin_module.name(), module_llvm);
     {
         let target = &*module.module_llvm.tm;
         let llmod = module.module_llvm.llmod();

Diff for: compiler/rustc_codegen_llvm/src/base.rs

@@ -13,10 +13,10 @@
 
 use std::time::Instant;
 
+use rustc_codegen_ssa::ModuleCodegen;
 use rustc_codegen_ssa::base::maybe_create_entry_wrapper;
 use rustc_codegen_ssa::mono_item::MonoItemExt;
 use rustc_codegen_ssa::traits::*;
-use rustc_codegen_ssa::{ModuleCodegen, ModuleKind};
 use rustc_data_structures::small_c_str::SmallCStr;
 use rustc_middle::dep_graph;
 use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs;
@@ -133,11 +133,7 @@ pub(crate) fn compile_codegen_unit(
             }
         }
 
-        ModuleCodegen {
-            name: cgu_name.to_string(),
-            module_llvm: llvm_module,
-            kind: ModuleKind::Regular,
-        }
+        ModuleCodegen::new_regular(cgu_name.to_string(), llvm_module)
     }
 
     (module, cost)

Diff for: compiler/rustc_codegen_ssa/src/base.rs

@@ -686,7 +686,7 @@ pub fn codegen_crate<B: ExtraBackendMethods>(
         submit_codegened_module_to_llvm(
             &backend,
             &ongoing_codegen.coordinator.sender,
-            ModuleCodegen { name: llmod_id, module_llvm, kind: ModuleKind::Allocator },
+            ModuleCodegen::new_allocator(llmod_id, module_llvm),
             cost,
         );
     }

Diff for: compiler/rustc_codegen_ssa/src/lib.rs

@@ -78,6 +78,14 @@ pub struct ModuleCodegen<M> {
 }
 
 impl<M> ModuleCodegen<M> {
+    pub fn new_regular(name: impl Into<String>, module: M) -> Self {
+        Self { name: name.into(), module_llvm: module, kind: ModuleKind::Regular }
+    }
+
+    pub fn new_allocator(name: impl Into<String>, module: M) -> Self {
+        Self { name: name.into(), module_llvm: module, kind: ModuleKind::Allocator }
+    }
+
     pub fn into_compiled_module(
         self,
         emit_obj: bool,