https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105943
Bug ID: 105943
Summary: [12/13 Regression] ICE in expand_LOOP_VECTORIZED, at
internal-fn.cc:2640
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20211003 and 20211010, with following test case
(pr98177 and roughly 500 more from gcc/testsuite), at -O2+ :
$ cat z1.c
int a, b, c;
void foo(long e) {
for (int f = 0; f < b; f ++)
for (int g = 0; g < c; g ++)
a = (short)e;
}
$ gcc-13-20220612 -c z1.c -O2 -fdisable-tree-vect
cc1: note: disable pass tree-vect for functions in the range of [0, 4294967295]
during RTL pass: expand
z1.c: In function 'foo':
z1.c:3:6: internal compiler error: in expand_LOOP_VECTORIZED, at
internal-fn.cc:2640
3 | void foo(long e) {
| ^~~
0x9b73a7 expand_LOOP_VECTORIZED
../../gcc/internal-fn.cc:2640
0x7d0557 expand_call_stmt
../../gcc/cfgexpand.cc:2737
0x7d0557 expand_gimple_stmt_1
../../gcc/cfgexpand.cc:3869
0x7d0557 expand_gimple_stmt
../../gcc/cfgexpand.cc:4033
0x7d5707 expand_gimple_basic_block
../../gcc/cfgexpand.cc:6085
0x7d81ce execute
../../gcc/cfgexpand.cc:6811
