1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/pr51768.c b/gcc/testsuite/c-c++-common/pr51768.c
new file mode 100644
index 00000000000..082594ccad7
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr51768.c
@@ -0,0 +1,25 @@
+/* PR middle-end/51768 */
+/* { dg-do compile } */
+/* { dg-options "" } */
+
+void
+foo (void)
+{
+  asm goto ("" : : : : lab, lab, lab2, lab);	/* { dg-error "duplicate asm operand name" } */
+lab:;
+lab2:;
+}
+
+void
+bar (void)
+{
+  asm goto ("" : : [lab] "i" (0) : : lab);	/* { dg-error "duplicate asm operand name" } */
+lab:;
+}
+
+void
+baz (void)
+{
+  int x;
+  asm ("" : [lab] "=r" (x) : [lab] "r" (x));	/* { dg-error "duplicate asm operand name" } */
+}