https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81158
Bug ID: 81158
Summary: [8 regression] Many test case failures starting with
r249424
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
The following tests are the ones that fail on powerpc64. Most fail on just LE
but a few also fail on BE.
FAIL: gcc.c-torture/execute/pr51581-1.c -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions execution test
FAIL: gcc.c-torture/execute/pr51581-1.c -O3 -g execution test
FAIL: gcc.c-torture/execute/pr51581-2.c -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions execution test
FAIL: gcc.c-torture/execute/pr51581-2.c -O3 -g execution test
FAIL: gcc.c-torture/execute/pr53645.c -O1 execution test
FAIL: gcc.c-torture/execute/pr53645.c -O2 execution test
FAIL: gcc.c-torture/execute/pr53645.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none execution test
FAIL: gcc.c-torture/execute/pr53645.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects execution test
FAIL: gcc.c-torture/execute/pr53645.c -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions execution test
FAIL: gcc.c-torture/execute/pr53645.c -O3 -g execution test
FAIL: gcc.c-torture/execute/pr53645.c -Os execution test
FAIL: gcc.dg/vect/pr51581-1.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/pr51581-1.c execution test
FAIL: gcc.dg/vect/pr51581-2.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/pr51581-2.c execution test
FAIL: gcc.dg/vect/pr51581-3.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/pr51581-3.c execution test
FAIL: gcc.target/powerpc/builtins-3.c scan-assembler-times vmulesh 1
FAIL: gcc.target/powerpc/builtins-3.c scan-assembler-times vmuleuh 1
FAIL: gcc.target/powerpc/builtins-3.c scan-assembler-times vmulosh 1
FAIL: gcc.target/powerpc/builtins-3.c scan-assembler-times vmulouh 1
Note: builttin-3 also fails on BE
FAIL: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions execution test
>From looking at the failures it appears that array values are getting messed
up.
Looking at pr51581-1:
(gdb) run
Starting program: /home/seurer/gcc/build/gcc-test/pr51581-1.exe
Program received signal SIGABRT, Aborted.
0x00003fffb7d00a88 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) where
#0 0x00003fffb7d00a88 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00003fffb7d0686c in __GI_abort () at abort.c:89
#2 0x0000000010000874 in main () at
/home/seurer/gcc/gcc-test/gcc/testsuite/gcc.c-torture/execute/pr51581-1.c:130
int
main ()
{
. . .
for (i = 0; i < N; i++)
if (c[i] != a[i] / 3 || d[i] != b[i] / 3)
abort (); // line 130
. . .
Looking at pr53645:
(gdb) run
Starting program: /home/seurer/gcc/build/gcc-test/pr53645.exe
Program received signal SIGABRT, Aborted.
0x00003fffb7d00a88 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) where
#0 0x00003fffb7d00a88 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00003fffb7d0686c in __GI_abort () at abort.c:89
#2 0x0000000010001fc8 in main () at
/home/seurer/gcc/gcc-test/gcc/testsuite/gcc.c-torture/execute/pr53645.c:74
int
main ()
{
UV ur, ur2;
SV sr, sr2;
int i;
#undef TEST
#define TEST(a, b, c, d) \
uq##a##b##c##d (&ur, u + i); \
if (ur[0] != u[i][0] / a || ur[3] != u[i][3] / d) \
abort (); \
asm volatile ("" : : "r" (&ur) : "memory"); \
if (ur[2] != u[i][2] / c || ur[1] != u[i][1] / b) \
abort (); \
asm volatile ("" : : "r" (&ur) : "memory"); \
ur##a##b##c##d (&ur, u + i); \
if (ur[0] != u[i][0] % a || ur[3] != u[i][3] % d) \
abort (); \
asm volatile ("" : : "r" (&ur) : "memory"); \
if (ur[2] != u[i][2] % c || ur[1] != u[i][1] % b) \
abort (); \
asm volatile ("" : : "r" (&ur) : "memory");
for (i = 0; i < sizeof (u) / sizeof (u[0]); i++)
{
TESTS // Line 74
}
The last one fails with a segmentation fault:
Program received signal SIGSEGV: Segmentation fault - invalid memory reference.
Backtrace for this error:
FAIL: libgomp.fortran/appendix-a/a.16.1.f90 -O3 -g execution test
