Add another checked cast

rust-lang · Mar 9, 2024 · 44dde15 · 44dde15
1 parent 677b430
commit 44dde15
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/compiler/rustc_codegen_llvm/src/common.rs b/compiler/rustc_codegen_llvm/src/common.rs
@@ -95,7 +95,8 @@ impl<'ll> BackendTypes for CodegenCx<'ll, '_> {
 
 impl<'ll> CodegenCx<'ll, '_> {
     pub fn const_array(&self, ty: &'ll Type, elts: &[&'ll Value]) -> &'ll Value {
-        unsafe { llvm::LLVMConstArray2(ty, elts.as_ptr(), elts.len()) }
+        let len = u64::try_from(elts.len()).expect("LLVMConstArray2 elements len overflow");
+        unsafe { llvm::LLVMConstArray2(ty, elts.as_ptr(), len) }
     }
 
     pub fn const_vector(&self, elts: &[&'ll Value]) -> &'ll Value {