Rollup of 3 pull requests

src/tools/run-make-support/src/rustc.rs

@@ -64,6 +64,12 @@ impl Rustc {
         self
     }
 
+    /// Specify a specific optimization level.
+    pub fn opt_level(&mut self, option: &str) -> &mut Self {
+        self.cmd.arg(format!("-Copt-level={option}"));
+        self
+    }
+
     /// Specify type(s) of output files to generate.
     pub fn emit(&mut self, kinds: &str) -> &mut Self {
         self.cmd.arg(format!("--emit={kinds}"));

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -103,7 +103,6 @@ run-make/issue-25581/Makefile
 run-make/issue-26006/Makefile
 run-make/issue-26092/Makefile
 run-make/issue-28595/Makefile
-run-make/issue-28766/Makefile
 run-make/issue-30063/Makefile
 run-make/issue-33329/Makefile
 run-make/issue-35164/Makefile
@@ -128,7 +127,6 @@ run-make/issue-85401-static-mir/Makefile
 run-make/issue-85441/Makefile
 run-make/issue-88756-default-output/Makefile
 run-make/issue-97463-abi-param-passing/Makefile
-run-make/issue64319/Makefile
 run-make/jobserver-error/Makefile
 run-make/libs-through-symlinks/Makefile
 run-make/libtest-json/Makefile
@@ -263,7 +261,6 @@ run-make/stable-symbol-names/Makefile
 run-make/static-dylib-by-default/Makefile
 run-make/static-extern-type/Makefile
 run-make/static-pie/Makefile
-run-make/static-unwinding/Makefile
 run-make/staticlib-blank-lib/Makefile
 run-make/staticlib-dylib-linkage/Makefile
 run-make/std-core-cycle/Makefile

tests/run-make/box-struct-no-segfault/rmake.rs

@@ -0,0 +1,13 @@
+// The crate "foo" tied to this test executes a very specific function,
+// which involves boxing an instance of the struct Foo. However,
+// this once caused a segmentation fault in cargo release builds due to an LLVM
+// incorrect assertion.
+// This test checks that this bug does not resurface.
+// See /~https://github.com/rust-lang/rust/issues/28766
+
+use run_make_support::{rustc, tmp_dir};
+
+fn main() {
+    rustc().opt().input("foo.rs").run();
+    rustc().opt().library_search_path(tmp_dir()).input("main.rs").run();
+}

tests/run-make/share-generics-export-again/rmake.rs

@@ -0,0 +1,45 @@
+// When crates had different optimization levels, a bug caused
+// incorrect symbol name generations. -Z share-generics could
+// also fail to re-export upstream generics on multiple compile
+// runs of the same dynamic library.
+
+// This test repeatedly compiles an rlib and a dylib with these flags
+// to check if this bug ever returns.
+
+// See /~https://github.com/rust-lang/rust/pull/68277
+// See /~https://github.com/rust-lang/rust/issues/64319
+//@ ignore-cross-compile
+
+use run_make_support::rustc;
+
+fn main() {
+    rustc().crate_type("rlib").input("foo.rs").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("3").run();
+    rustc().crate_type("rlib").input("foo.rs").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=no").run();
+    rustc().crate_type("rlib").input("foo.rs").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("rlib").input("foo.rs").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=no").run();
+    rustc().crate_type("rlib").input("foo.rs").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("rlib").input("foo.rs").run();
+    rustc().crate_type("dylib").input("bar.rs").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("1").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("1").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("1").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("2").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("2").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("2").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("3").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("3").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("3").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("s").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("s").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("s").arg("-Zshare-generics=yes").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("z").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("z").arg("-Zshare-generics=no").run();
+    rustc().crate_type("dylib").input("bar.rs").opt_level("z").arg("-Zshare-generics=yes").run();
+}

tests/run-make/static-unwinding/rmake.rs

@@ -0,0 +1,15 @@
+// During unwinding, an implementation of Drop is possible to clean up resources.
+// This test implements drop in both a main function and its static library.
+// If the test succeeds, a Rust program being a static library does not affect Drop implementations.
+// See /~https://github.com/rust-lang/rust/issues/10434
+
+//@ ignore-cross-compile
+//@ needs-unwind
+
+use run_make_support::{run, rustc};
+
+fn main() {
+    rustc().input("lib.rs").run();
+    rustc().input("main.rs").run();
+    run("main");
+}