Workaround intermittent gcc-7.5 ICE in cpp tests (#57016)
Summary:
gcc-7.5 optimizer can hit internal compiler error if both `-fopenmp` and
`-faligned-new` are passed:
```
/var/lib/jenkins/workspace/test/cpp/api/transformer.cpp: In function 'void transformer_decoder_test_helper(bool)':
/var/lib/jenkins/workspace/test/cpp/api/transformer.cpp:609:6: internal compiler error: in equal_mem_array_ref_p, at tree-ssa-scopedtables.c:429
void transformer_decoder_test_helper(bool is_cuda) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
Fixes https://github.com/pytorch/pytorch/issues/40941
Fixes #{issue number}
Pull Request resolved: https://github.com/pytorch/pytorch/pull/57016
Reviewed By: walterddr
Differential Revision: D28027670
Pulled By: malfet
fbshipit-source-id: 834e34b95e09bcae39ada25e02749f479a7e9013
