https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103977
Bug ID: 103977
Summary: ice in try_vectorize_loop_1
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 52163
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52163&action=edit
gzipped C source code
The attached C code does this:
$ /home/dcb/gcc/results/bin/gcc -c -w -std=gnu89 -mno-sse -mno-mmx -O3
bug785.c
during GIMPLE pass: vect
mm/slab_common.c: In function ‘cache_random_seq_create’:
mm/slab_common.c:992:5: internal compiler error: in operator[], at vec.h:889
0x10367ab vect_analyze_loop(loop*, vec_info_shared*)
../../trunk.git/gcc/tree-vect-loop.c:0
0x1082487 try_vectorize_loop_1(hash_table<simduid_to_vf, false, xcallocator>*&,
unsigned int*, loop*, gimple*, gimple*, function*)
../../trunk.git/gcc/tree-vectorizer.c:1047
0x1082487 try_vectorize_loop(hash_table<simduid_to_vf, false, xcallocator>*&,
unsigned int*, loop*, function*)
../../trunk.git/gcc/tree-vectorizer.c:1162
Code derived from the Linux kernel.
I will have a go at reducing the code.
