Use LLVMDIBuilderCreateArrayType

Author: Zalathar

compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs

@@ -26,9 +26,7 @@ use self::type_map::{DINodeCreationResult, Stub, UniqueTypeId};
 use super::CodegenUnitDebugContext;
 use super::namespace::mangled_name_of_instance;
 use super::type_names::{compute_debuginfo_type_name, compute_debuginfo_vtable_name};
-use super::utils::{
-    DIB, create_DIArray, debug_context, get_namespace_for_item, is_node_local_to_unit,
-};
+use super::utils::{DIB, debug_context, get_namespace_for_item, is_node_local_to_unit};
 use crate::common::{AsCCharPtr, CodegenCx};
 use crate::debuginfo::metadata::type_map::build_type_with_children;
 use crate::debuginfo::utils::{WidePtrKind, wide_pointer_kind};
@@ -126,17 +124,17 @@ fn build_fixed_size_array_di_node<'ll, 'tcx>(
         .try_to_target_usize(cx.tcx)
         .expect("expected monomorphic const in codegen") as c_longlong;
 
-    let subrange =
-        unsafe { Some(llvm::LLVMRustDIBuilderGetOrCreateSubrange(DIB(cx), 0, upper_bound)) };
+    let subrange = unsafe { llvm::LLVMRustDIBuilderGetOrCreateSubrange(DIB(cx), 0, upper_bound) };
 
-    let subscripts = create_DIArray(DIB(cx), &[subrange]);
+    let subscripts = &[subrange];
     let di_node = unsafe {
-        llvm::LLVMRustDIBuilderCreateArrayType(
+        llvm::LLVMDIBuilderCreateArrayType(
             DIB(cx),
             size.bits(),
             align.bits() as u32,
             element_type_di_node,
-            subscripts,
+            subscripts.as_ptr(),
+            subscripts.len() as c_uint,
         )
     };
 

compiler/rustc_codegen_llvm/src/llvm/ffi.rs

@@ -1689,6 +1689,15 @@ unsafe extern "C" {
         UniqueId: *const c_uchar,
         UniqueIdLen: size_t,
     ) -> &'ll Metadata;
+
+    pub(crate) fn LLVMDIBuilderCreateArrayType<'ll>(
+        Builder: &DIBuilder<'ll>,
+        Size: u64,
+        AlignInBits: u32,
+        Ty: &'ll Metadata,
+        Subscripts: *const &'ll Metadata,
+        NumSubscripts: c_uint,
+    ) -> &'ll Metadata;
 }
 
 #[link(name = "llvm-wrapper", kind = "static")]
@@ -2140,14 +2149,6 @@ unsafe extern "C" {
         AlignInBits: u32,
     ) -> &'a DIVariable;
 
-    pub fn LLVMRustDIBuilderCreateArrayType<'a>(
-        Builder: &DIBuilder<'a>,
-        Size: u64,
-        AlignInBits: u32,
-        Ty: &'a DIType,
-        Subscripts: &'a DIArray,
-    ) -> &'a DIType;
-
     pub fn LLVMRustDIBuilderGetOrCreateSubrange<'a>(
         Builder: &DIBuilder<'a>,
         Lo: i64,

compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp

@@ -1120,15 +1120,6 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateVariable(
   }
 }
 
-extern "C" LLVMMetadataRef
-LLVMRustDIBuilderCreateArrayType(LLVMRustDIBuilderRef Builder, uint64_t Size,
-                                 uint32_t AlignInBits, LLVMMetadataRef Ty,
-                                 LLVMMetadataRef Subscripts) {
-  return wrap(
-      Builder->createArrayType(Size, AlignInBits, unwrapDI<DIType>(Ty),
-                               DINodeArray(unwrapDI<MDTuple>(Subscripts))));
-}
-
 extern "C" LLVMMetadataRef
 LLVMRustDIBuilderGetOrCreateSubrange(LLVMRustDIBuilderRef Builder, int64_t Lo,
                                      int64_t Count) {