diff --git a/src/arch/x86_64/CodeGen.zig b/src/arch/x86_64/CodeGen.zig
index 9abeadad5d..de8f907dea 100644
--- a/src/arch/x86_64/CodeGen.zig
+++ b/src/arch/x86_64/CodeGen.zig
@@ -3482,6 +3482,8 @@ fn genSetStackArg(self: *Self, ty: Type, stack_offset: i32, mcv: MCValue) InnerE
         },
         .memory,
         .embedded_in_code,
+        .direct_load,
+        .got_load,
         => {
             if (abi_size <= 8) {
                 const reg = try self.copyToTmpRegister(ty, mcv);
diff --git a/test/behavior/basic.zig b/test/behavior/basic.zig
index 5fc26d15bb..13d7e833d5 100644
--- a/test/behavior/basic.zig
+++ b/test/behavior/basic.zig
@@ -194,6 +194,8 @@ test "multiline string comments at multiple places" {
 }
 
 test "string concatenation" {
+    if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest;
+
     try expect(mem.eql(u8, "OK" ++ " IT " ++ "WORKED", "OK IT WORKED"));
 }
 
@@ -395,6 +397,7 @@ fn testTakeAddressOfParameter(f: f32) !void {
 
 test "pointer to void return type" {
     if (builtin.zig_backend == .stage2_c) return error.SkipZigTest; // TODO
+    if (builtin.zig_backend == .stage2_x86_64 and builtin.os.tag == .macos) return error.SkipZigTest;
 
     try testPointerToVoidReturnType();
 }