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[Bug c/42721] possible integer wrong code bug
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 13 Jan 2010 12:39:53 -0000
- Subject: [Bug c/42721] possible integer wrong code bug
- References: <bug-42721-12544@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from jakub at gcc dot gnu dot org 2010-01-13 12:39 -------
Indeed, looks like HWI32 issue.
Smaller testcase:
static unsigned long long
foo (unsigned long long x, unsigned long long y)
{
return x / y;
}
static int a, b;
int
main (void)
{
unsigned long long c = 1;
b ^= c && (foo (a, -1ULL) != 1L);
if (b != 1)
__builtin_abort ();
return 0;
}
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-01-13 12:39:52
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42721