https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82496
Jeff Benshetler <jeff.benshetler at stackpath dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jeff.benshetler at stackpath dot c | |om --- Comment #1 from Jeff Benshetler <jeff.benshetler at stackpath dot com> --- Created attachment 42332 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42332&action=edit Preprocessed file that triggers the bug. When compiled without optimization and run, running the executable produces the following correct output: deltaT=2.00275 When compiled with any level of optimization (-O1 or greater), running the executable produces the following erroneous output: deltaT=0