https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109392
Bug ID: 109392
Summary: [12/13 Regression] ICE in tree_vec_extract, at
tree-vect-generic.cc:177
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 with r12 before 20210502 :
$ cat z1.c
typedef short __attribute__ ((__vector_size__ (64))) V;
V v, w;
inline V foo (V a, V b);
V
foo (V a, V b)
{
vfork();
b &= v < b;
return (V){foo (b, w)[3], (V){}[3]};
}
$ gcc-13-20230402 -c z1.c
z1.c: In function 'foo':
z1.c:6:1: warning: AVX512F vector return without AVX512F enabled changes the
ABI [-Wpsabi]
6 | {
| ^
z1.c:7:3: warning: implicit declaration of function 'vfork'
[-Wimplicit-function-declaration]
7 | vfork();
| ^~~~~
z1.c:5:1: note: the ABI for passing parameters with 64-byte alignment has
changed in GCC 4.6
5 | foo (V a, V b)
| ^~~
during GIMPLE pass: veclower
z1.c:5:1: internal compiler error: in tree_vec_extract, at
tree-vect-generic.cc:177
0x111bdd6 tree_vec_extract(gimple_stmt_iterator*, tree_node*, tree_node*,
tree_node*, tree_node*)
../../gcc/tree-vect-generic.cc:177
0x111f8fb expand_vector_condition
../../gcc/tree-vect-generic.cc:1140
0x6cac8d expand_vector_comparison
../../gcc/tree-vect-generic.cc:453
0x11229c1 expand_vector_operation
../../gcc/tree-vect-generic.cc:1239
0x11229c1 expand_vector_operations_1
../../gcc/tree-vect-generic.cc:2357
0x11229c1 expand_vector_operations
../../gcc/tree-vect-generic.cc:2391
0x11229c1 execute
../../gcc/tree-vect-generic.cc:2445
