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[Bug tree-optimization/27755] PRE confused by control flow
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 24 May 2006 17:30:19 -0000
- Subject: [Bug tree-optimization/27755] PRE confused by control flow
- References: <bug-27755-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenth at gcc dot gnu dot org 2006-05-24 17:30 -------
Cannot get it smaller than
unsigned mudflap_mode;
void __mfu_check (unsigned obj_count,
unsigned long ptr_lower, unsigned long* all_ovr_obj)
{
unsigned uncovered = 1, i;
switch (mudflap_mode) {
case 0:
while (uncovered)
{
uncovered = 0;
for (i = 0; i < obj_count; i++)
{
int j, uncovered_low_p = 1, uncovered_high_p = 1;
for (j = 0; j < obj_count; j++)
{
if (ptr_lower <= *all_ovr_obj)
{
uncovered_low_p = 0;
uncovered_high_p = 0;
}
}
if (uncovered_low_p || uncovered_high_p)
uncovered++;
}
}
}
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27755