rewrite sepcomp-separate to rmake

3 files changed, 32 insertions, 14 deletions

diff --git a/tests/run-make/intrinsic-unreachable/rmake.rs b/tests/run-make/intrinsic-unreachable/rmake.rs
index 6c951147604..5e62a966c54 100644
--- a/tests/run-make/intrinsic-unreachable/rmake.rs
+++ b/tests/run-make/intrinsic-unreachable/rmake.rs
@@ -5,15 +5,18 @@
 // See https://github.com/rust-lang/rust/pull/16970
 
 //@ needs-asm-support
-//@ ignore-windows-msvc
+//@ ignore-windows
 // Reason: Because of Windows exception handling, the code is not necessarily any shorter.
 
-use run_make_support::rustc;
-use std::io::BufReader;
-use std::fs::File;
+use run_make_support::{fs_wrapper, rustc};
+use std::io::{BufRead, BufReader};
 
 fn main() {
     rustc().opt().emit("asm").input("exit-ret.rs").run();
     rustc().opt().emit("asm").input("exit-unreachable.rs").run();
-    assert!(BufReader::new(File::open("exit-unreachable.s")).lines().count() < BufReader::new(File::open("exit-ret.s")).lines().count());
+    let unreachable_file = fs_wrapper::open_file("exit-unreachable.s");
+    let ret_file = fs_wrapper::open_file("exit-ret.s");
+    assert!(
+        BufReader::new(unreachable_file).lines().count() < BufReader::new(ret_file).lines().count()
+    );
 }
diff --git a/tests/run-make/sepcomp-separate/Makefile b/tests/run-make/sepcomp-separate/Makefile
deleted file mode 100644
index 62cf54a88fb..00000000000
--- a/tests/run-make/sepcomp-separate/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-include ../tools.mk
-
-# Test that separate compilation actually puts code into separate compilation
-# units.  `foo.rs` defines `magic_fn` in three different modules, which should
-# wind up in three different compilation units.
-
-all:
-	$(RUSTC) foo.rs --emit=llvm-ir -C codegen-units=3
-	[ "$$(cat "$(TMPDIR)"/foo.*.ll | grep -c define\ .*magic_fn)" -eq "3" ]
diff --git a/tests/run-make/sepcomp-separate/rmake.rs b/tests/run-make/sepcomp-separate/rmake.rs
new file mode 100644
index 00000000000..d3ef2450a84
--- /dev/null
+++ b/tests/run-make/sepcomp-separate/rmake.rs
@@ -0,0 +1,24 @@
+// Test that separate compilation actually puts code into separate compilation
+// units.  `foo.rs` defines `magic_fn` in three different modules, which should
+// wind up in three different compilation units.
+// See https://github.com/rust-lang/rust/pull/16367
+
+use run_make_support::{fs_wrapper, glob, regex, rustc};
+use std::io::{BufRead, BufReader};
+
+fn main() {
+    let mut match_count = 0;
+    rustc().input("foo.rs").emit("llvm-ir").codegen_units(3).run();
+    let re = regex::Regex::new(r#"define.*magic_fn"#).unwrap();
+    let paths = glob::glob("foo.*.ll").unwrap();
+    paths.filter_map(|entry| entry.ok()).filter(|path| path.is_file()).for_each(|path| {
+        let file = fs_wrapper::open_file(path);
+        let reader = BufReader::new(file);
+        reader
+            .lines()
+            .filter_map(|line| line.ok())
+            .filter(|line| re.is_match(line))
+            .for_each(|_| match_count += 1);
+    });
+    assert_eq!(match_count, 3);
+}