contrib/gcc/builtins.c

282 	      tree offset;
286 	      exp = get_inner_reference (exp, &bitsize, &bitpos, &offset,
290 	      if (offset && TREE_CODE (offset) == PLUS_EXPR
291 		  && host_integerp (TREE_OPERAND (offset, 1), 1))
296 		    = ((unsigned) tree_low_cst (TREE_OPERAND (offset, 1), 1)
301 		  offset = TREE_OPERAND (offset, 0);
303 	      if (offset && TREE_CODE (offset) == MULT_EXPR
304 		  && host_integerp (TREE_OPERAND (offset, 1), 1))
309 		    = ((unsigned) tree_low_cst (TREE_OPERAND (offset, 1), 1)
315 	      else if (offset)
357   HOST_WIDE_INT offset;
387 	 compute the offset to the following null if we don't know where to
395       /* We don't know the starting offset, but we do know that the string
396 	 has no internal zero bytes.  We can assume that the offset falls
398 	 what he gets.  Subtract the offset from the length of the string,
405   /* We have a known offset into the string.  Start searching there for
408     offset = 0;
410     offset = -1;
412     offset = tree_low_cst (offset_node, 0);
414   /* If the offset is known to be out of bounds, warn, and call strlen at
416   if (offset < 0 || offset > max)
418       warning (0, "offset outside bounds of constant string");
428   return ssize_int (strlen (ptr + offset));
548      we require a stable offset from the current frame pointer to the
1062 	  HOST_WIDE_INT offset = -1, length = -1;
1077 	    offset = INTVAL (MEM_OFFSET (mem));
1079 	  if (offset >= 0 && len && host_integerp (len, 0))
1098 		  if (offset <= size
1100 		      && offset + length <= size)
1104 	      if (offset >= 0
1106 		offset += tree_low_cst (DECL_FIELD_OFFSET (field), 0)
1111 		  offset = -1;
1120 	    offset = -1;
1124 	      set_mem_offset (mem, offset >= 0 ? GEN_INT (offset) : NULL_RTX);
1152    gives the offset of that register into the block returned by
2809 builtin_memcpy_read_str (void *data, HOST_WIDE_INT offset,
2814   gcc_assert (offset >= 0
2815 	      && ((unsigned HOST_WIDE_INT) offset + GET_MODE_SIZE (mode)
2818   return c_readstr (str + offset, mode);
3289 builtin_strncpy_read_str (void *data, HOST_WIDE_INT offset,
3294   if ((unsigned HOST_WIDE_INT) offset > strlen (str))
3297   return c_readstr (str + offset, mode);
3366 builtin_memset_read_str (void *data, HOST_WIDE_INT offset ATTRIBUTE_UNUSED,
3383 builtin_memset_gen_str (void *data, HOST_WIDE_INT offset ATTRIBUTE_UNUSED,
9442 	  /* Return an offset into the constant string argument.  */
9514 	  /* Return an offset into the constant string argument.  */
9569 	  /* Return an offset into the constant string argument.  */
9628 	  /* Return an offset into the constant string argument.  */