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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [gcc/] [testsuite/] [gcc.c-torture/] [compile/] [20011130-2.c] - Rev 516
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/* This testcase caused infinite loop in life info computation after if conversion on IA-64. Conditional register dead for pseudo holding sign-extended k was improperly computed, resulting in this pseudo being live at start of bb if it was dead at the end and vice versa; as it was a bb which had edge to itself, this resulted in alternative propagating this basic block forever. */ typedef struct { unsigned char a; unsigned char b; } S0; typedef struct { S0 *c; int d; unsigned int e; unsigned char *f[3]; void *g; } S1; int bar (int, void *); int foo (S1 *x, float y) { S0 *h; int i, j, k, l, m; float n, o, p; unsigned char *q, *r[3]; h = x->c; m = h->a; l = h->b; n = y; o = 0.0; if (x->d == 8) for (j = 0; j < x->e; j++) for (k = 0; k < 3; k++) { n = y; o = 0.0; if (m) q = x->f[k] + x->e - 1 - j; else q = x->f[k] + j; p = (*q - o) * y / (n - o); p = 0.0 > p ? 0.0 : p; p = y < p ? y : p; if (l) p = r[k][(int) p]; bar (p, x->g); } return 1; }