https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86506
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|DUPLICATE |---
--- Comment #6 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to rsand...@gcc.gnu.org from comment #5)
> Same ceil_log2 bug as PR86644.
>
> *** This bug has been marked as a duplicate of bug 86644 ***
Doubtful. The code I provided still seems to go wrong:
$ ~/gcc/results.262977.ubsan/bin/gcc -c -O3 /tmp/bug450.c
/tmp/bug450.c: In function ‘b’:
/tmp/bug450.c:6:21: warning: assignment to ‘int’ from ‘void (*)()’ makes
integer from pointer without a cast [-Wint-conversion]
a[c] = a[c + 1] = b;
^
../../trunk/gcc/tree-vect-patterns.c:225:17: runtime error: shift exponent 64
is too large for 32-bit type 'int'
$ more /tmp/bug450.c
int *a;
void b() {
int c;
for (; c; c += 2)
a[c] = a[c + 1] = b;
}
$
I'd appreciate some guidance as to where I've gone wrong.
