And here's a different piece of code that triggers a segfault:
$ cat bug.c
typedef enum { a } b;
typedef struct { b action } c;
d;
inline e(void *p1) {
long *f = p1;
long g = f[g] = d;
}
typedef struct { int h } i;
__thread i j;
k() {
int *l = &j.h;
c *entryp = l;
int m = &entryp[m];
for (;;) {
e(&entryp[m]);
entryp[m].action = a;
}
}
$ x86_64-w64-mingw32-gcc -c -O -ftree-pre bug.c
*bug.c:2:27:* *warning: *no semicolon at end of struct or union
typedef struct { b action *}* c;
*^*
*bug.c:3:1:* *warning: *data definition has no type or storage class
*d*;
*^*
*bug.c:3:1:* *warning: *type defaults to '*int*' in declaration of '*d*' [
*-Wimplicit-int*]
*bug.c:4:8:* *warning: *return type defaults to '*int*' [*-Wimplicit-int*]
inline *e*(void *p1) {
*^*
*bug.c:8:24:* *warning: *no semicolon at end of struct or union
typedef struct { int h *}* i;
*^*
*bug.c:10:1:* *warning: *return type defaults to '*int*' [*-Wimplicit-int*]
*k*() {
*^*
*bug.c:* In function '*k*':
*bug.c:12:15:* *warning: *initialization from incompatible pointer type [
*-Wincompatible-pointer-types*]
c *entryp = *l*;
*^*
*bug.c:13:11:* *warning: *initialization makes integer from pointer without
a cast [*-Wint-conversion*]
int m = *&*entryp[m];
*^*
*bug.c:10:1:* *internal compiler error: *Segmentation fault
*k*() {
*^*
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
