Fixed optimization for char-size bitwise XOR/OR/AND when the rhs operand is complicated.

test/todo/bug2395.c

@@ -1,51 +0,0 @@
-
-/* 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
-}