Rollup merge of #126709 - Oneirical:exitestial-crisis, r=jieyouxu

Migrate `include_bytes_deps`, `optimization-remarks-dir-pgo`, `optimization-remarks-dir`, `issue-40535` and `rmeta-preferred` `run-make` tests to rmake

Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).

Needs BSD tryjob.

try-job: aarch64-apple
try-job: x86_64-msvc
try-job: armhf-gnu
try-job: test-various

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

@@ -261,6 +261,40 @@ pub fn test_while_readonly<P: AsRef<Path>, F: FnOnce() + std::panic::UnwindSafe>
     success.unwrap();
 }
 
+/// Browse the directory `path` non-recursively and return all files which respect the parameters
+/// outlined by `closure`.
+#[track_caller]
+pub fn shallow_find_files<P: AsRef<Path>, F: Fn(&PathBuf) -> bool>(
+    path: P,
+    closure: F,
+) -> Vec<PathBuf> {
+    let mut matching_files = Vec::new();
+    for entry in fs_wrapper::read_dir(path) {
+        let entry = entry.expect("failed to read directory entry.");
+        let path = entry.path();
+
+        if path.is_file() && closure(&path) {
+            matching_files.push(path);
+        }
+    }
+    matching_files
+}
+
+/// Returns true if the filename at `path` starts with `prefix`.
+pub fn has_prefix<P: AsRef<Path>>(path: P, prefix: &str) -> bool {
+    path.as_ref().file_name().is_some_and(|name| name.to_str().unwrap().starts_with(prefix))
+}
+
+/// Returns true if the filename at `path` has the extension `extension`.
+pub fn has_extension<P: AsRef<Path>>(path: P, extension: &str) -> bool {
+    path.as_ref().extension().is_some_and(|ext| ext == extension)
+}
+
+/// Returns true if the filename at `path` does not contain `expected`.
+pub fn not_contains<P: AsRef<Path>>(path: P, expected: &str) -> bool {
+    !path.as_ref().file_name().is_some_and(|name| name.to_str().unwrap().contains(expected))
+}
+
 /// Use `cygpath -w` on a path to get a Windows path string back. This assumes that `cygpath` is
 /// available on the platform!
 #[track_caller]

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -46,7 +46,6 @@ run-make/fmt-write-bloat/Makefile
 run-make/foreign-double-unwind/Makefile
 run-make/foreign-exceptions/Makefile
 run-make/foreign-rust-exceptions/Makefile
-run-make/include_bytes_deps/Makefile
 run-make/incr-add-rust-src-component/Makefile
 run-make/incr-foreign-head-span/Makefile
 run-make/interdependent-c-libraries/Makefile
@@ -64,7 +63,6 @@ run-make/issue-33329/Makefile
 run-make/issue-35164/Makefile
 run-make/issue-36710/Makefile
 run-make/issue-37839/Makefile
-run-make/issue-40535/Makefile
 run-make/issue-47551/Makefile
 run-make/issue-69368/Makefile
 run-make/issue-83045/Makefile
@@ -102,8 +100,6 @@ run-make/no-alloc-shim/Makefile
 run-make/no-builtins-attribute/Makefile
 run-make/no-duplicate-libs/Makefile
 run-make/obey-crate-type-flag/Makefile
-run-make/optimization-remarks-dir-pgo/Makefile
-run-make/optimization-remarks-dir/Makefile
 run-make/output-type-permutations/Makefile
 run-make/panic-abort-eh_frame/Makefile
 run-make/pass-linker-flags-flavor/Makefile
@@ -136,7 +132,6 @@ run-make/return-non-c-like-enum-from-c/Makefile
 run-make/rlib-format-packed-bundled-libs-2/Makefile
 run-make/rlib-format-packed-bundled-libs-3/Makefile
 run-make/rlib-format-packed-bundled-libs/Makefile
-run-make/rmeta-preferred/Makefile
 run-make/rustc-macro-dep-files/Makefile
 run-make/sanitizer-cdylib-link/Makefile
 run-make/sanitizer-dylib-link/Makefile

tests/run-make/include-bytes-deps/rmake.rs

@@ -0,0 +1,13 @@
+// include_bytes! and include_str! in `main.rs`
+// should register the included file as of #24423,
+// and this test checks that this is still the case.
+// See https://github.com/rust-lang/rust/pull/24423
+
+use run_make_support::{invalid_utf8_contains, rustc};
+
+fn main() {
+    rustc().emit("dep-info").input("main.rs").run();
+    invalid_utf8_contains("main.d", "input.txt");
+    invalid_utf8_contains("main.d", "input.bin");
+    invalid_utf8_contains("main.d", "input.md");
+}

tests/run-make/metadata-only-crate-no-ice/rmake.rs

@@ -0,0 +1,14 @@
+// In a dependency hierarchy, metadata-only crates could cause an Internal
+// Compiler Error (ICE) due to a compiler bug - not correctly fetching sources for
+// metadata-only crates. This test is a minimal reproduction of a program that triggered
+// this bug, and checks that no ICE occurs.
+// See https://github.com/rust-lang/rust/issues/40535
+
+use run_make_support::rustc;
+
+fn main() {
+    rustc().input("baz.rs").emit("metadata").run();
+    rustc().input("bar.rs").emit("metadata").extern_("baz", "libbaz.rmeta").run();
+    // There should be no internal compiler error.
+    rustc().input("foo.rs").emit("metadata").extern_("bar", "libbaz.rmeta").run();
+}

tests/run-make/optimization-remarks-dir-pgo/rmake.rs

@@ -0,0 +1,41 @@
+// This test checks the -Zremark-dir flag, which writes LLVM
+// optimization remarks to the YAML format. When using PGO (Profile
+// Guided Optimization), the Hotness attribute should be included in
+// the output remark files.
+// See https://github.com/rust-lang/rust/pull/114439
+
+//@ needs-profiler-support
+//@ ignore-cross-compile
+
+use run_make_support::{
+    has_extension, has_prefix, invalid_utf8_contains, llvm_profdata, run, rustc, shallow_find_files,
+};
+
+fn main() {
+    rustc().profile_generate("profdata").opt().input("foo.rs").output("foo").run();
+    run("foo");
+    // The profdata filename is a long sequence of numbers, fetch it by prefix and extension
+    // to keep the test working even if the filename changes.
+    let profdata_files = shallow_find_files("profdata", |path| {
+        has_prefix(path, "default") && has_extension(path, "profraw")
+    });
+    let profdata_file = profdata_files.get(0).unwrap();
+    llvm_profdata().merge().output("merged.profdata").input(profdata_file).run();
+    rustc()
+        .profile_use("merged.profdata")
+        .opt()
+        .input("foo.rs")
+        .arg("-Cremark=all")
+        .arg("-Zremark-dir=profiles")
+        .run();
+    // Check that PGO hotness is included in the remark files
+    let remark_files = shallow_find_files("profiles", |path| {
+        has_prefix(path, "foo") && has_extension(path, "yaml")
+    });
+    assert!(!remark_files.is_empty());
+    for file in remark_files {
+        if !file.to_str().unwrap().contains("codegen") {
+            invalid_utf8_contains(file, "Hotness")
+        };
+    }
+}

tests/run-make/optimization-remarks-dir/rmake.rs

@@ -0,0 +1,39 @@
+// In this test, the function `bar` has #[inline(never)] and the function `foo`
+// does not. This test outputs LLVM optimization remarks twice - first for all
+// functions (including `bar`, and the `inline` mention), and then for only `foo`
+// (should not have the `inline` mention).
+// See https://github.com/rust-lang/rust/pull/113040
+
+use run_make_support::{
+    has_extension, has_prefix, invalid_utf8_contains, invalid_utf8_not_contains, not_contains,
+    rustc, shallow_find_files,
+};
+
+fn main() {
+    rustc()
+        .opt()
+        .input("foo.rs")
+        .crate_type("lib")
+        .arg("-Cremark=all")
+        .arg("-Zremark-dir=profiles_all")
+        .run();
+    let all_remark_files = shallow_find_files("profiles_all", |path| {
+        has_prefix(path, "foo") && has_extension(path, "yaml") && not_contains(path, "codegen")
+    });
+    for file in all_remark_files {
+        invalid_utf8_contains(file, "inline")
+    }
+    rustc()
+        .opt()
+        .input("foo.rs")
+        .crate_type("lib")
+        .arg("-Cremark=foo")
+        .arg("-Zremark-dir=profiles_foo")
+        .run();
+    let foo_remark_files = shallow_find_files("profiles_foo", |path| {
+        has_prefix(path, "foo") && has_extension(path, "yaml")
+    });
+    for file in foo_remark_files {
+        invalid_utf8_not_contains(file, "inline")
+    }
+}

tests/run-make/rmeta-preferred/rmake.rs

@@ -0,0 +1,18 @@
+// This test compiles `lib.rs`'s dependency, `rmeta_aux.rs`, as both an rlib
+// and an rmeta crate. By default, rustc should give the metadata crate (rmeta)
+// precedence over the rust-lib (rlib). This test inspects the contents of the binary
+// and that the correct (rmeta) crate was used.
+// rlibs being preferred could indicate a resurgence of the -Zbinary-dep-depinfo bug
+// seen in #68298.
+// See https://github.com/rust-lang/rust/pull/37681
+
+//@ ignore-cross-compile
+
+use run_make_support::{invalid_utf8_contains, invalid_utf8_not_contains, rustc};
+
+fn main() {
+    rustc().input("rmeta_aux.rs").crate_type("rlib").emit("link,metadata").run();
+    rustc().input("lib.rs").crate_type("rlib").emit("dep-info").arg("-Zbinary-dep-depinfo").run();
+    invalid_utf8_contains("lib.d", "librmeta_aux.rmeta");
+    invalid_utf8_not_contains("lib.d", "librmeta_aux.rlib");
+}