From: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date: Mon, 6 Nov 2023 10:37:50 +0000 (+0100)
Subject: gccrs: Add named variadic argument test
X-Git-Tag: basepoints/gcc-15~2006
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0df14bb1f3d944ea7281979d03c812a8d2c09ce7;p=thirdparty%2Fgcc.git

gccrs: Add named variadic argument test

Variadic arguments may have a name or a pattern. This commit provides two
new tests in order to ensure their correct behavior.

gcc/testsuite/ChangeLog:

	* rust/compile/pattern_variadic.rs: New test.
	* rust/execute/torture/named_variadic.rs: New test.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
---

diff --git a/gcc/testsuite/rust/compile/pattern_variadic.rs b/gcc/testsuite/rust/compile/pattern_variadic.rs
new file mode 100644
index 000000000000..2932b70f5b47
--- /dev/null
+++ b/gcc/testsuite/rust/compile/pattern_variadic.rs
@@ -0,0 +1,14 @@
+extern "C" {
+    fn printf(fmt: *const i8, _: ...);
+}
+
+fn main() -> i32 {
+    unsafe {
+        printf(
+            "%s" as *const str as *const i8,
+            "Message" as *const str as *const i8,
+        );
+    }
+
+    0
+}
diff --git a/gcc/testsuite/rust/execute/torture/named_variadic.rs b/gcc/testsuite/rust/execute/torture/named_variadic.rs
new file mode 100644
index 000000000000..d9b59cff41c0
--- /dev/null
+++ b/gcc/testsuite/rust/execute/torture/named_variadic.rs
@@ -0,0 +1,20 @@
+// { dg-output "Named variadic" }
+
+extern "C" {
+    fn printf(fmt: *const i8, variadic: ...);
+}
+
+fn print(s: &str) {
+    unsafe {
+        printf(
+            "%s" as *const str as *const i8,
+            s as *const str as *const i8,
+        );
+    }
+}
+
+fn main() -> i32 {
+    print("Named variadic");
+
+    0
+}