1 files changed, 74 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/uninit-pr93100.c b/gcc/testsuite/gcc.dg/uninit-pr93100.c
new file mode 100644
index 0000000..61b7e43
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/uninit-pr93100.c
@@ -0,0 +1,74 @@
+/* PR tree-optimization/93100 - gcc -fsanitize=address inhibits -Wuninitialized
+   { dg-do compile }
+   { dg-options "-Wall -fsanitize=address" } */
+
+struct A
+{
+  _Bool b;
+  int i;
+};
+
+void warn_A_b_O0 (void)
+{
+  struct A a;
+
+  if (a.b)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}
+
+void warn_A_i_O0 (void)
+{
+  struct A a;
+
+  if (a.i)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}
+
+#pragma GCC optimize ("1")
+
+void warn_A_b_O1 (void)
+{
+  struct A a;
+
+  if (a.b)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}
+
+void warn_A_i_O1 (void)
+{
+  struct A a;
+
+  if (a.i)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}
+
+
+#pragma GCC optimize ("2")
+
+void warn_A_b_O2 (void)
+{
+  struct A a;
+
+  if (a.b)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}
+
+void warn_A_i_O2 (void)
+{
+  struct A a;
+
+  if (a.i)          // { dg-warning "\\\[-Wuninitialized" }
+    {
+      (void)&a;
+    }
+}