Rename target_pointer_width to pointer_width and turn it into an u32

Rename target_pointer_width to pointer_width because it is already
member of the Target struct.

The compiler supports only three valid values for target_pointer_width:
16, 32, 64. Thus it can safely be turned into an int.
This means less allocations and clones as well as easier handling of the type.

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs
index a586b37361e..a2cd030ac0e 100644
--- a/compiler/rustc_codegen_ssa/src/back/write.rs
+++ b/compiler/rustc_codegen_ssa/src/back/write.rs
@@ -307,7 +307,7 @@ pub struct CodegenContext<B: WriteBackendMethods> {
     pub allocator_module_config: Arc<ModuleConfig>,
     pub tm_factory: TargetMachineFactory<B>,
     pub msvc_imps_needed: bool,
-    pub target_pointer_width: String,
+    pub target_pointer_width: u32,
     pub target_arch: String,
     pub debuginfo: config::DebugInfo,
 
@@ -1022,7 +1022,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
         tm_factory: TargetMachineFactory(backend.target_machine_factory(tcx.sess, ol)),
         total_cgus,
         msvc_imps_needed: msvc_imps_needed(tcx),
-        target_pointer_width: tcx.sess.target.target.target_pointer_width.clone(),
+        target_pointer_width: tcx.sess.target.target.pointer_width,
         target_arch: tcx.sess.target.target.arch.clone(),
         debuginfo: tcx.sess.opts.debuginfo,
     };