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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [20090113-2.c] - Rev 308
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struct obstack {}; struct bitmap_head_def; typedef struct bitmap_head_def *bitmap; typedef const struct bitmap_head_def *const_bitmap; typedef unsigned long BITMAP_WORD; typedef struct bitmap_obstack { struct bitmap_element_def *elements; struct bitmap_head_def *heads; struct obstack obstack; } bitmap_obstack; typedef struct bitmap_element_def { struct bitmap_element_def *next; struct bitmap_element_def *prev; unsigned int indx; BITMAP_WORD bits[((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u))]; } bitmap_element; struct bitmap_descriptor; typedef struct bitmap_head_def { bitmap_element *first; bitmap_element *current; unsigned int indx; bitmap_obstack *obstack; } bitmap_head; bitmap_element bitmap_zero_bits; typedef struct { bitmap_element *elt1; bitmap_element *elt2; unsigned word_no; BITMAP_WORD bits; } bitmap_iterator; static void __attribute__((noinline)) bmp_iter_set_init (bitmap_iterator *bi, const_bitmap map, unsigned start_bit, unsigned *bit_no) { bi->elt1 = map->first; bi->elt2 = ((void *)0); while (1) { if (!bi->elt1) { bi->elt1 = &bitmap_zero_bits; break; } if (bi->elt1->indx >= start_bit / (((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u)) * (8 * 8 * 1u))) break; bi->elt1 = bi->elt1->next; } if (bi->elt1->indx != start_bit / (((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u)) * (8 * 8 * 1u))) start_bit = bi->elt1->indx * (((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u)) * (8 * 8 * 1u)); bi->word_no = start_bit / (8 * 8 * 1u) % ((128 + (8 * 8 * 1u) - 1) / (8 * 8 * 1u)); bi->bits = bi->elt1->bits[bi->word_no]; bi->bits >>= start_bit % (8 * 8 * 1u); start_bit += !bi->bits; *bit_no = start_bit; } static void __attribute__((noinline)) bmp_iter_next (bitmap_iterator *bi, unsigned *bit_no) { bi->bits >>= 1; *bit_no += 1; } static unsigned char __attribute__((noinline)) bmp_iter_set_tail (bitmap_iterator *bi, unsigned *bit_no) { while (!(bi->bits & 1)) { bi->bits >>= 1; *bit_no += 1; } return 1; } static __inline__ unsigned char bmp_iter_set (bitmap_iterator *bi, unsigned *bit_no) { unsigned bno = *bit_no; BITMAP_WORD bits = bi->bits; bitmap_element *elt1; if (bits) { while (!(bits & 1)) { bits >>= 1; bno += 1; } *bit_no = bno; return 1; } *bit_no = ((bno + 64 - 1) / 64 * 64); bi->word_no++; elt1 = bi->elt1; while (1) { while (bi->word_no != 2) { bi->bits = elt1->bits[bi->word_no]; if (bi->bits) { bi->elt1 = elt1; return bmp_iter_set_tail (bi, bit_no); } *bit_no += 64; bi->word_no++; } elt1 = elt1->next; if (!elt1) { bi->elt1 = elt1; return 0; } *bit_no = elt1->indx * (2 * 64); bi->word_no = 0; } } extern void abort (void); static void __attribute__((noinline)) catchme(int i) { if (i != 0 && i != 64) abort (); } static void __attribute__((noinline)) foobar (bitmap_head *chain) { bitmap_iterator rsi; unsigned int regno; for (bmp_iter_set_init (&(rsi), (chain), (0), &(regno)); bmp_iter_set (&(rsi), &(regno)); bmp_iter_next (&(rsi), &(regno))) catchme(regno); } int main() { bitmap_element elem = { (void *)0, (void *)0, 0, { 1, 1 } }; bitmap_head live_throughout = { &elem, &elem, 0, (void *)0 }; foobar (&live_throughout); return 0; }
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