rewrite no-builtins-attribute to rmake

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -35,7 +35,6 @@ 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/pdb-buildinfo-cl-cmd/Makefile
 run-make/pgo-gen-lto/Makefile
 run-make/pgo-indirect-call-promotion/Makefile

tests/run-make/native-link-modifier-whole-archive/rmake.rs

@@ -66,7 +66,8 @@ fn main() {
         .crate_type("rlib")
         .arg("-lstatic:-bundle,+whole-archive=c_static_lib_with_constructor")
         .run();
-    // Native lib linked into RLIB via `-l static:-bundle,+whole-archive`, RLIB linked into executable
+    // Native lib linked into RLIB via `-l static:-bundle,+whole-archive`
+    // RLIB linked into executable
     rustc().input("indirectly_linked.rs").run();
 
     // Native lib linked into rlib via `#[link()]` attribute on extern block.

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

@@ -1,9 +0,0 @@
-include ../tools.mk
-
-# We want to check if `no-builtins` is also added to the function declarations in the used crate.
-
-all:
-	$(RUSTC) no_builtins.rs --emit=link
-	$(RUSTC) main.rs --emit=llvm-ir
-
-	cat "$(TMPDIR)"/main.ll | "$(LLVM_FILECHECK)" filecheck.main.txt

tests/run-make/no-builtins-attribute/rmake.rs

@@ -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();
+}