From d9d013bec077600b8b0dc25e51191802d1e11cd9 Mon Sep 17 00:00:00 2001
From: Oneirical <manchot@videotron.ca>
Date: Mon, 27 May 2024 20:57:01 -0400
Subject: [PATCH] rewrite lto-smoke to rmake

---
 .../tidy/src/allowed_run_make_makefiles.txt   |  1 -
 tests/run-make/lto-smoke/Makefile             | 31 -------------------
 tests/run-make/lto-smoke/rmake.rs             | 13 ++++++++
 3 files changed, 13 insertions(+), 32 deletions(-)
 delete mode 100644 tests/run-make/lto-smoke/Makefile
 create mode 100644 tests/run-make/lto-smoke/rmake.rs

diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
index 2329b8b44de..baf341277c7 100644
--- a/src/tools/tidy/src/allowed_run_make_makefiles.txt
+++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -145,7 +145,6 @@ run-make/lto-linkage-used-attr/Makefile
 run-make/lto-no-link-whole-rlib/Makefile
 run-make/lto-readonly-lib/Makefile
 run-make/lto-smoke-c/Makefile
-run-make/lto-smoke/Makefile
 run-make/macos-deployment-target/Makefile
 run-make/macos-fat-archive/Makefile
 run-make/manual-crate-name/Makefile
diff --git a/tests/run-make/lto-smoke/Makefile b/tests/run-make/lto-smoke/Makefile
deleted file mode 100644
index 13a09fce734..00000000000
--- a/tests/run-make/lto-smoke/Makefile
+++ /dev/null
@@ -1,31 +0,0 @@
-# ignore-cross-compile
-include ../tools.mk
-
-all: noparam bool_true bool_false thin fat
-
-noparam:
-	$(RUSTC) lib.rs
-	$(RUSTC) main.rs -C lto
-	$(call RUN,main)
-
-bool_true:
-	$(RUSTC) lib.rs
-	$(RUSTC) main.rs -C lto=yes
-	$(call RUN,main)
-
-
-bool_false:
-	$(RUSTC) lib.rs
-	$(RUSTC) main.rs -C lto=off
-	$(call RUN,main)
-
-thin:
-	$(RUSTC) lib.rs
-	$(RUSTC) main.rs -C lto=thin
-	$(call RUN,main)
-
-fat:
-	$(RUSTC) lib.rs
-	$(RUSTC) main.rs -C lto=fat
-	$(call RUN,main)
-
diff --git a/tests/run-make/lto-smoke/rmake.rs b/tests/run-make/lto-smoke/rmake.rs
new file mode 100644
index 00000000000..7294c32fbf8
--- /dev/null
+++ b/tests/run-make/lto-smoke/rmake.rs
@@ -0,0 +1,13 @@
+// A simple smoke test to check that link time optimization
+// (LTO) works as intended, with its various flags turned on.
+// See https://github.com/rust-lang/rust/issues/10741
+
+//@ ignore-cross-compile
+
+fn main() {
+    let lto_flags = ["-Clto", "-Clto=yes", "-Clto=off", "-Clto=thin", "-Clto=fat"];
+    for flag in lto_flags {
+        rustc().input(lib.rs).run();
+        rustc().input(main.rs).arg(flag).run();
+    }
+}