Use LLVMDIBuilderCreateNameSpace

Author: Zalathar

compiler/rustc_codegen_llvm/src/debuginfo/namespace.rs

@@ -5,7 +5,7 @@ use rustc_hir::def_id::DefId;
 use rustc_middle::ty::{self, Instance};
 
 use super::utils::{DIB, debug_context};
-use crate::common::{AsCCharPtr, CodegenCx};
+use crate::common::CodegenCx;
 use crate::llvm;
 use crate::llvm::debuginfo::DIScope;
 
@@ -33,12 +33,12 @@ pub(crate) fn item_namespace<'ll>(cx: &CodegenCx<'ll, '_>, def_id: DefId) -> &'l
     };
 
     let scope = unsafe {
-        llvm::LLVMRustDIBuilderCreateNameSpace(
+        llvm::LLVMDIBuilderCreateNameSpace(
             DIB(cx),
             parent_scope,
-            namespace_name_string.as_c_char_ptr(),
+            namespace_name_string.as_ptr(),
             namespace_name_string.len(),
-            false, // ExportSymbols (only relevant for C++ anonymous namespaces)
+            llvm::False, // ExportSymbols (only relevant for C++ anonymous namespaces)
         )
     };
 

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -5,17 +5,18 @@ use std::fmt::Debug;
 use std::marker::PhantomData;
 use std::ptr;
 
-use libc::{c_char, c_int, c_uint, c_ulonglong, c_void, size_t};
+use libc::{c_char, c_int, c_uchar, c_uint, c_ulonglong, c_void, size_t};
 use rustc_macros::TryFromU32;
 use rustc_target::spec::SymbolVisibility;
 
 use super::RustString;
 use super::debuginfo::{
     DIArray, DIBasicType, DIBuilder, DICompositeType, DIDerivedType, DIDescriptor, DIEnumerator,
-    DIFile, DIFlags, DIGlobalVariableExpression, DILexicalBlock, DILocation, DINameSpace,
-    DISPFlags, DIScope, DISubprogram, DISubrange, DITemplateTypeParameter, DIType, DIVariable,
-    DebugEmissionKind, DebugNameTableKind,
+    DIFile, DIFlags, DIGlobalVariableExpression, DILexicalBlock, DILocation, DISPFlags, DIScope,
+    DISubprogram, DISubrange, DITemplateTypeParameter, DIType, DIVariable, DebugEmissionKind,
+    DebugNameTableKind,
 };
+use crate::llvm;
 
 /// In the LLVM-C API, boolean values are passed as `typedef int LLVMBool`,
 /// which has a different ABI from Rust or C++ `bool`.
@@ -1623,6 +1624,14 @@ unsafe extern "C" {
     pub(crate) fn LLVMDisposeDIBuilder<'ll>(Builder: ptr::NonNull<DIBuilder<'ll>>);
 
     pub(crate) fn LLVMDIBuilderFinalize<'ll>(Builder: &DIBuilder<'ll>);
+
+    pub(crate) fn LLVMDIBuilderCreateNameSpace<'ll>(
+        Builder: &DIBuilder<'ll>,
+        ParentScope: Option<&'ll Metadata>,
+        Name: *const c_uchar,
+        NameLen: size_t,
+        ExportSymbols: llvm::Bool,
+    ) -> &'ll Metadata;
 }
 
 #[link(name = "llvm-wrapper", kind = "static")]
@@ -2186,14 +2195,6 @@ unsafe extern "C" {
         Ty: &'a DIType,
     ) -> &'a DITemplateTypeParameter;
 
-    pub fn LLVMRustDIBuilderCreateNameSpace<'a>(
-        Builder: &DIBuilder<'a>,
-        Scope: Option<&'a DIScope>,
-        Name: *const c_char,
-        NameLen: size_t,
-        ExportSymbols: bool,
-    ) -> &'a DINameSpace;
-
     pub fn LLVMRustDICompositeTypeReplaceArrays<'a>(
         Builder: &DIBuilder<'a>,
         CompositeType: &'a DIType,

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -1294,14 +1294,6 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateTemplateTypeParameter(
       unwrapDI<DIType>(Ty), IsDefault));
 }
 
-extern "C" LLVMMetadataRef
-LLVMRustDIBuilderCreateNameSpace(LLVMRustDIBuilderRef Builder,
-                                 LLVMMetadataRef Scope, const char *Name,
-                                 size_t NameLen, bool ExportSymbols) {
-  return wrap(Builder->createNameSpace(
-      unwrapDI<DIDescriptor>(Scope), StringRef(Name, NameLen), ExportSymbols));
-}
-
 extern "C" void LLVMRustDICompositeTypeReplaceArrays(
     LLVMRustDIBuilderRef Builder, LLVMMetadataRef CompositeTy,
     LLVMMetadataRef Elements, LLVMMetadataRef Params) {