rewrite no-builtins-attribute to rmake

Author: Oneirical

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -52,7 +52,6 @@ run-make/macos-deployment-target/Makefile
 run-make/min-global-align/Makefile
 run-make/native-link-modifier-bundle/Makefile
 run-make/no-alloc-shim/Makefile
-run-make/no-builtins-attribute/Makefile
 run-make/no-duplicate-libs/Makefile
 run-make/panic-abort-eh_frame/Makefile
 run-make/pdb-buildinfo-cl-cmd/Makefile

tests/run-make/no-builtins-attribute/Makefile

@@ -0,0 +1,13 @@
+// `no_builtins` is an attribute related to LLVM's optimizations. In order to ensure that it has an
+// effect on link-time optimizations (LTO), it should be added to function declarations in a crate.
+// This test uses the `llvm-filecheck` tool to determine that this attribute is successfully
+// being added to these function declarations.
+// See https://github.com/rust-lang/rust/pull/113716
+
+use run_make_support::{llvm_filecheck, rfs, rustc};
+
+fn main() {
+    rustc().input("no_builtins.rs").emit("link").run();
+    rustc().input("main.rs").emit("llvm-ir").run();
+    llvm_filecheck().patterns("filecheck.main.txt").stdin(rfs::read("main.ll")).run();
+}