OpenBLAS-0.3.15 fails tests on Broadwell

[Chaosit]

I am trying to install OpenBLAS on my workstation with Intel Xeon E5-2687W v4 with GCC 11.1.0 (I have used OpenBLAS-0.3.15-GCC-10.3.0.eb easyconfig as base, just updating the version of GCC) using EasyBuild v4.4.0. However, at the testing stage I am encountering a problem that some of the tests produce completely wrong results:

OMP_NUM_THREADS=2 ./xzcblat3 < zin3
TESTS OF THE COMPLEX*16 LEVEL 3 BLAS

THE FOLLOWING PARAMETER VALUES WILL BE USED:
FOR N 0 1 2 3 5 9 35
FOR ALPHA ( 0.0, 0.0) ( 1.0, 0.0) ( 0.7,-0.9)
FOR BETA ( 0.0, 0.0) ( 1.0, 0.0) ( 1.3,-1.1)

ROUTINES PASS COMPUTATIONAL TESTS IF TEST RATIO IS LESS THAN 16.00

COLUMN-MAJOR AND ROW-MAJOR DATA LAYOUTS ARE TESTED

RELATIVE MACHINE PRECISION IS TAKEN TO BE 2.2E-16

cblas_zgemm PASSED THE TESTS OF ERROR-EXITS

******* FATAL ERROR - COMPUTED RESULT IS LESS THAN HALF ACCURATE *******
EXPECTED RESULT COMPUTED RESULT
1 ( 0.495928E-01, 0.197144 ) ( -0.176908 , -0.293573E-01)
2 ( -0.154221 , -0.169237 ) ( 0.179134 , 0.164118 )
******* cblas_zgemm FAILED ON CALL NUMBER:
8644: cblas_zgemm ( CblasColMajor,CblasConjTrans, CblasNoTrans,
2, 1, 1, ( 1.0, 0.0) , A, 2, B, 2, ( 0.0, 0.0) , C, 3).
******* cblas_zgemm FAILED ON CALL NUMBER:
4537: cblas_zgemm ( CblasRowMajor, CblasNoTrans, CblasNoTrans,
1, 1, 0, ( 0.0, 0.0) , A, 2, B, 1, ( 0.0, 0.0) , C, 2)

I did try tuning the target,however, it seems that OpenBLAS does not support Broadwell explicitly. At the same time choosing Haswell target results in the same error. I just wanted to ask first if this is the right place to come with such a problem or is it better to contact OpenBLAS developers? I would also be grateful if anyone can share some workaround for this issue!

[Chaosit]

I have also tried installing OpenBLAS on a Skylake CPU and got similar result

[Chaosit]

Actually, after some additional testing - it seems that it has something to do with GCC 11.1.0. I have tried using GCC 10.3.1 and it did work fine!