https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45273
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
--- Comment #29 from Richard Biener <rguenth at gcc dot gnu.org> ---
Like the following which I am testing now:
- /* Use FP math to avoid overflows of 32bit integers. */
+ /* Use int64_t math to avoid overflows of 32bit integers. */
if (d == 0)
/* If one probability is 0% and one 100%, avoid division by zero. */
combined_probability = REG_BR_PROB_BASE / 2;
else
- combined_probability = (((double) combined_probability) * probability
- * REG_BR_PROB_BASE / d + 0.5);
+ combined_probability = ((((int64_t) combined_probability)
+ * probability
+ * REG_BR_PROB_BASE + (d / 2)) / d);
I can confirm that in gcc/ the only other remaining uses of 'double' are
for dumpfile contents.
