2 files changed, 6 insertions, 1 deletions
diff --git a/src/codegen/llvm/Builder.zig b/src/codegen/llvm/Builder.zig
index 3e6cf31d69..cd7a0045aa 100644
--- a/src/codegen/llvm/Builder.zig
+++ b/src/codegen/llvm/Builder.zig
@@ -572,7 +572,9 @@ pub const Type = enum(u32) {
 
     pub fn isSized(self: Type, builder: *const Builder) Allocator.Error!bool {
         var visited: IsSizedVisited = .{};
-        return self.isSizedVisited(&visited, builder);
+        const result = try self.isSizedVisited(&visited, builder);
+        if (builder.useLibLlvm()) assert(result == self.toLlvm(builder).isSized().toBool());
+        return result;
     }
 
     const FormatData = struct {
diff --git a/src/codegen/llvm/bindings.zig b/src/codegen/llvm/bindings.zig
index aee9cea384..2fab61d1cf 100644
--- a/src/codegen/llvm/bindings.zig
+++ b/src/codegen/llvm/bindings.zig
@@ -434,6 +434,9 @@ pub const Type = opaque {
         Packed: Bool,
     ) void;
 
+    pub const isSized = LLVMTypeIsSized;
+    extern fn LLVMTypeIsSized(Ty: *Type) Bool;
+
     pub const constGEP = LLVMConstGEP2;
     extern fn LLVMConstGEP2(
         Ty: *Type,