2 files changed, 33 insertions, 0 deletions
diff --git a/tests/run-make/issue-7349/Makefile b/tests/run-make/issue-7349/Makefile
new file mode 100644
index 000000000..dc073b77f
--- /dev/null
+++ b/tests/run-make/issue-7349/Makefile
@@ -0,0 +1,11 @@
+include ../tools.mk
+
+# Test to make sure that inner functions within a polymorphic outer function
+# don't get re-codegened when the outer function is monomorphized.  The test
+# code monomorphizes the outer functions several times, but the magic constants
+# used in the inner functions should each appear only once in the generated IR.
+
+all:
+	$(RUSTC) foo.rs --emit=llvm-ir
+	[ "$$(grep -c 'ret i32 8675309' "$(TMPDIR)/foo.ll")" -eq "1" ]
+	[ "$$(grep -c 'ret i32 11235813' "$(TMPDIR)/foo.ll")" -eq "1" ]
diff --git a/tests/run-make/issue-7349/foo.rs b/tests/run-make/issue-7349/foo.rs
new file mode 100644
index 000000000..246a12595
--- /dev/null
+++ b/tests/run-make/issue-7349/foo.rs
@@ -0,0 +1,22 @@
+fn outer<T>() {
+    #[allow(dead_code)]
+    fn inner() -> u32 {
+        8675309
+    }
+    inner();
+}
+
+extern "C" fn outer_foreign<T>() {
+    #[allow(dead_code)]
+    fn inner() -> u32 {
+        11235813
+    }
+    inner();
+}
+
+fn main() {
+    outer::<isize>();
+    outer::<usize>();
+    outer_foreign::<isize>();
+    outer_foreign::<usize>();
+}