https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65486
Bug ID: 65486
Summary: ICE: in type_natural_mode, at config/i386/i386.c:6646
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: david.abdurachmanov at gmail dot com
Tested in F21 with gcc version 4.9.2 20150212 (Red Hat 4.9.2-6) (GCC) and in
F22 with gcc version 5.0.0 20150226 (Red Hat 5.0.0-0.17) (GCC)
Testcase:
typedef long double a __attribute__((vector_size (32)));
a sum(a first, a second) {
return first + second;
}
Changing vector size:
16 OK
32 ICE
64 ICE
128 OK
256 OK
512 OK
1024 OK
2048 OK
Does not allow storing 2 and 4 long doubles in a vector, but every other size
is okay.
a.cpp: In function ‘a sum(a, a)’:
a.cpp:3:24: internal compiler error: in type_natural_mode, at
config/i386/i386.c:6646
a sum(a first, a second) {
^
Please submit a full bug report,
with preprocessed source if appropriate.
