https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81590
Bug ID: 81590
Summary: AVX512 run-time test failures
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: pavel.v.chupin at gmail dot com
Target Milestone: ---
Target: x86-64
On Skylake server running Fedora 25/x86-64, r250630 gave:
FAIL: gcc.target/i386/avx512vl-vpermb-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpermi2b-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpermt2b-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmaddhuq-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmaddluq-2.c execution test
FAIL: gcc.target/i386/avx512vl-vpmultishiftqb-2.c execution test
FAIL: libgomp.c/for-3.c execution test
FAIL: libgomp.c/for-5.c execution test
FAIL: libgomp.fortran/target7.f90 -O0 execution test
FAIL: libgomp.fortran/target7.f90 -O1 execution test
FAIL: libgomp.fortran/target7.f90 -O2 execution test
FAIL: libgomp.fortran/target7.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions execution test
FAIL: libgomp.fortran/target7.f90 -O3 -g execution test
FAIL: libgomp.fortran/target7.f90 -Os execution test
FAIL: libgomp.fortran/target8.f90 -O0 execution test
FAIL: libgomp.fortran/target8.f90 -O1 execution test
FAIL: libgomp.fortran/target8.f90 -O2 execution test
FAIL: libgomp.fortran/target8.f90 -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions execution test
FAIL: libgomp.fortran/target8.f90 -O3 -g execution test
FAIL: libgomp.fortran/target8.f90 -Os execution test
[hlu@gkliclel217 testsuite]$ gdb ./avx512vl-vpermb-2.exeGNU gdb (GDB) Fedora
7.12.1-48.fc25
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
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Reading symbols from ./avx512vl-vpermb-2.exe...done.
(gdb) r
Starting program:
/export/users/hjl/build/gcc/build-x86_64-linux/gcc/testsuite/avx512vl-vpermb-2.exe
Missing separate debuginfos, use: dnf debuginfo-install
glibc-2.24-9.fc25.x86_64
Program received signal SIGILL, Illegal instruction.
test_256 ()
at
/export/users/hjl/git/gcc/gcc/testsuite/gcc.target/i386/avx512vbmi-vpermb-2.c:38
38 res1.x = INTRINSIC (_permutexvar_epi8) (s1.x, s2.x);
(gdb) bt
#0 test_256 ()
at
/export/users/hjl/git/gcc/gcc/testsuite/gcc.target/i386/avx512vbmi-vpermb-2.c:38
#1 0x000000000040090b in avx512vl_test ()
at
/export/users/hjl/git/gcc/gcc/testsuite/gcc.target/i386/avx512f-helper.h:154
#2 do_test ()
at
/export/users/hjl/git/gcc/gcc/testsuite/gcc.target/i386/avx512vl-check.h:10
#3 0x000000000040044a in main ()
at
/export/users/hjl/git/gcc/gcc/testsuite/gcc.target/i386/avx512vl-check.h:31
(gdb)
