1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr30375.c b/gcc/testsuite/gcc.dg/tree-ssa/pr30375.c
new file mode 100644
index 000000000..50b3bfd56
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr30375.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-dse" } */
+
+typedef struct _s {
+    int a;
+    int b;
+    int c;
+    int d;
+} s;
+
+extern void g(s*);
+extern void f(void);
+
+void test_signed_msg_encoding(void)
+{
+    s signInfo = { sizeof(signInfo), 0 };
+
+    signInfo.b = 1;
+    signInfo.c = 0;
+    g(&signInfo);
+    signInfo.d = 0;
+    f();
+}
+
+/* { dg-final { scan-tree-dump-times "signInfo = {}" 1 "dse1" } } */
+/* { dg-final { cleanup-tree-dump "dse*" } } */