https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63910
Bug ID: 63910
Summary: [5 Regression] ICE: simplify_immed_subreg, at
simplify-rtx.c:5519 with
-mstringop-strategy=vector_loop -mavx512f
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 33999
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33999&action=edit
reduced testcase
Compiler output:
$ gcc -O -mstringop-strategy=vector_loop -mavx512f testcase.c
testcase.c: In function 'foo':
testcase.c:8:1: internal compiler error: in simplify_immed_subreg, at
simplify-rtx.c:5519
}
^
0xc331ee simplify_immed_subreg
/mnt/svn/gcc-trunk/gcc/simplify-rtx.c:5519
0xc48509 simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, unsigned
int)
/mnt/svn/gcc-trunk/gcc/simplify-rtx.c:5818
0x165f75c propagate_rtx_1
/mnt/svn/gcc-trunk/gcc/fwprop.c:550
0x166014f propagate_rtx
/mnt/svn/gcc-trunk/gcc/fwprop.c:686
0x1661f63 forward_propagate_and_simplify
/mnt/svn/gcc-trunk/gcc/fwprop.c:1333
0x1661f63 forward_propagate_into
/mnt/svn/gcc-trunk/gcc/fwprop.c:1391
0x1662c84 fwprop
/mnt/svn/gcc-trunk/gcc/fwprop.c:1476
0x1662c84 execute
/mnt/svn/gcc-trunk/gcc/fwprop.c:1509
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r217624 - ICE
4_9 r216937 - OK
