mirror of https://github.com/cc65/cc65.git
31 lines
845 B
C
31 lines
845 B
C
|
|
/* bug 1562: cc65 generates incorrect code for logical expression with -O */
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
int failures = 0;
|
|
|
|
char input[256];
|
|
|
|
#define DEBUGTRUE(x) printf("%s=%d\n", #x, (x)); failures += (x) ? 0 : 1
|
|
|
|
#define DEBUGFALSE(x) printf("%s=%d\n", #x, (x)); failures += (x) ? 1 : 0
|
|
|
|
int main(void) {
|
|
char* r;
|
|
strcpy(input, "\"XYZ\"");
|
|
r = input+4;
|
|
DEBUGFALSE(*r != '"'); // = false
|
|
DEBUGTRUE(*r == '"'); // = true
|
|
DEBUGFALSE(*(r+1) == '"'); // = false
|
|
// Next answer should be false because
|
|
// (false || true && false) is false, but it is true with -O.
|
|
DEBUGFALSE(*r != '"' || *r == '"' && *(r+1) == '"');
|
|
// Adding parens fixes it even with -O.
|
|
DEBUGFALSE(*r != '"' || (*r == '"' && *(r+1) == '"'));
|
|
|
|
printf("failures: %d\n", failures);
|
|
return failures;
|
|
}
|