1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/regparm.c b/gcc/testsuite/gcc.target/i386/regparm.c
new file mode 100644
index 000000000..9db191c72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/regparm.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-W -Wall" } */
+
+/* Verify that GCC correctly detects non-matching regparm attributes.  */
+int __attribute__((regparm(3))) f (void);  /* { dg-message "note: previous" } */
+
+int __attribute__((regparm(2))) f (void) { /* { dg-error "conflicting" } */
+  return 0;
+}