https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89865
--- Comment #5 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Jakub Jelinek from comment #4) > I don't see the testcase FAILing on i?86 though, just on x86_64, and there > starting with Oct 2x (20th is still ok, 23rd fails, so likely r265398). The testcase is very brittle, there certainly is the difference between gcc-8.4 and gcc-9.0 in generated code for 32bit target (as reported in Comment #0), apparently undetected by the scan directives. That said, the testcase will easily fail with a compiler using non-default target [1] or compile flags. [1] https://gcc.gnu.org/ml/gcc-testresults/2019-03/msg03664.html