From 1e300bf768b949498895062b157d71aa3ac9bbc1 Mon Sep 17 00:00:00 2001
From: Colin Leroy-Mira <colin@colino.net>
Date: Thu, 1 Feb 2024 20:13:05 +0100
Subject: [PATCH] Add test case for issue #2395

---
 test/todo/bug2395.c | 51 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 test/todo/bug2395.c

diff --git a/test/todo/bug2395.c b/test/todo/bug2395.c
new file mode 100644
index 000000000..4f4d2a6d0
--- /dev/null
+++ b/test/todo/bug2395.c
@@ -0,0 +1,51 @@
+
+/* bug #2395: Bitwise operators with a boolean expression fail when optimized */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+unsigned char a, b;
+unsigned char c = 199;
+unsigned char d = 100;
+
+int main(void) {
+    int fails = 0;
+
+    a = c ^ (d != 0);
+    b = c ^ 1;
+
+    printf("%u ^ (%u != 0) => %u\n", c, d, a);
+    if (a != b) {
+      printf("XOR error: a %d instead of %d\n", a, b);
+      fails++;
+    }
+
+    a = c | (d != 0);
+    b = c | 1;
+
+    printf("%u | (%u != 0) => %u\n", c, d, a);
+    if (a != b) {
+      printf("OR error: a %d instead of %d\n", a, b);
+      fails++;
+    }
+
+    a = c & (d != 0);
+    b = c & 1;
+
+    printf("%u & (%u != 0) => %u\n", c, d, a);
+    if (a != b) {
+      printf("AND error: a %d instead of %d\n", a, b);
+      fails++;
+    }
+    printf("%d errors\n", fails);
+
+#ifdef __OPT__
+    return fails;
+#else
+    /* Force exit failure on non-optimised version, which works,
+     * otherwise it breaks the build
+     */
+    return 1;
+#endif
+}