https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
kugan at gcc dot gnu.org changed:
What|Removed |Added
Resolution|--- |DUPLICATE
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
--- Comment #5 from kugan at gcc dot gnu.org ---
ddd for the :
ref_a:
_57 = D.4803[_20];
ref_b:
D.4803[_20] = _ifc__174;
We get DDR_ARE_DEPENDENT (ddr) == chrec_dont_know. Hence apply_safelen ().
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
--- Comment #4 from kugan at gcc dot gnu.org ---
This particular loop has loop->safelen set to 16. Does this mean this can never
be loop vectorized for VLA?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
--- Comment #3 from kugan at gcc dot gnu.org ---
For SVE mode in vect_analyze_loop_2, we have
(gdb) p min_vf
$15 = {coeffs = {4, 4}}
(gdb) p max_vf
$16 = 16
Thus maybe_lt (max_vf, min_vf)) is false. This results in bad data dependence.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
--- Comment #2 from kugan at gcc dot gnu.org ---
Thanks. I see the following in the log:
test.cpp:33:53: missed: not vectorized: relevant stmt not supported: _54 =
.MASK_LOAD (_53, 32B, _171);
test.cpp:22:19: missed: bad operation or
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653
Richard Biener changed:
What|Removed |Added
Blocks||53947
Keywords|
