[Bug 227723] clang 6.0 breaks php56/opcache

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227723

--- Comment #3 from lampa at fit.vutbr.cz ---
Patch seems to be ok. I've only changed installed header files in
/usr/local/include/php/Zend, recompiled/reinstalled opcache, restarted apache
and it runs.
I've reduced problem to:

#include <stdio.h>
#include <stdlib.h>

#define EX_TMP_VAR(ex, n)         ((temp_variable*)(((char*)(ex)) +
((int)(n))))
#define EX_TMP_VAR_NUM(ex, n)  (EX_TMP_VAR(ex, 0) - (1 + (n)))
#define VAR_NUM(v) ((unsigned int)(EX_TMP_VAR_NUM(0, 0) - EX_TMP_VAR(0, v)))

typedef struct TV {
        long tmp;
        char tmp3[30];
} temp_variable;

int num;

int main()
{
        printf("%x\n", VAR_NUM(-100));
        return 0;
}

cc -O2 t.c
f999999c
clang50 -O2 t.c
1
gcc -O2 t.c
1

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