Sam James <[email protected]> writes:
> PR117546 was fixed by Eric's r14-10693-gadab597af288d6 change, but
> the testcase here is sufficiently different to be worth including
> in torture/.
>
> gcc/testsuite/ChangeLog:
> PR ipa/117546
> * gcc.dg/torture/pr117546.c: New test.
> ---
Sorry, forgot to ask: OK? (for both)
> gcc/testsuite/gcc.dg/torture/pr117546.c | 84 +++++++++++++++++++++++++
> 1 file changed, 84 insertions(+)
> create mode 100644 gcc/testsuite/gcc.dg/torture/pr117546.c
>
> diff --git a/gcc/testsuite/gcc.dg/torture/pr117546.c
> b/gcc/testsuite/gcc.dg/torture/pr117546.c
> new file mode 100644
> index 000000000000..21e2aef18b9a
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/torture/pr117546.c
> @@ -0,0 +1,84 @@
> +/* { dg-do run } */
> +
> +typedef struct {
> + int a;
> + int b;
> +} c;
> +
> +typedef struct {
> + int a;
> + int b;
> + int d;
> +} e;
> +
> +typedef struct {
> + int f;
> + int g;
> +} h;
> +
> +typedef struct {
> + h i[1];
> + e coords[100];
> +} j;
> +
> +struct k {
> + j glyf;
> +} l;
> +
> +int m, n;
> +double o;
> +e *q;
> +e r;
> +
> +int s(c *v) {
> + if (v[0].a == m)
> + __builtin_abort();
> + int t = v[0].a + v[2].b * (v[2].b - v[0].b),
> + u = (2. + v[4].b - v[2].b) * (v[4].b - v[2].b);
> + if (t <= 3 * u) {
> + v[0] = v[4];
> + return 1;
> + }
> + return 0;
> +}
> +
> +void w(struct k *v) {
> + c p[5];
> + e *a = &v->glyf.coords[0];
> + if (a->d)
> + p[0].a = p[0].b = a->b;
> + q = &r;
> + o = p[0].b;
> + while (v->glyf.i[0].g--) {
> + q = q == &r ? a : q + 1;
> + if (q->d)
> + switch (n) {
> + case 2:
> + p[4].a = q->a;
> + p[4].b = q->b;
> + n = s(p);
> + }
> + else
> + switch (n) {
> + case 0:
> + n = 1;
> + break;
> + case 1:
> + p[2].b = q->b;
> + n = 2;
> + break;
> + case 2:
> + if (s(p))
> + n = 1;
> + }
> + }
> +}
> +
> +int main() {
> + l.glyf.i[0] = (h){0, 26};
> + l.glyf.coords[0] = (e){4, 2, 3};
> + l.glyf.coords[3] = (e){2, 126, 3};
> + l.glyf.coords[4] = (e){2, 206};
> + l.glyf.coords[6] = (e){0, 308, 5};
> + w(&l);
> +}
>
> base-commit: 26ca00eeedb01f9d5102586b76ae2a6e787111af
