Re: [lmi] Benchmarking: gcc-8 beats gcc-10 soundly?

[Greg Chicares]

On 2020-09-21 12:15, Greg Chicares wrote:
[...]
> Thus, we can confidently upgrade to gcc-10: it passes our
> full nychthemeral test suite, and it's a negligible half
> of a percent slower.

That message should have stated that the binaries (built
with both compilers) used current 'master' (6a05bcee)
with no change to any code or makefiles. Thus, they used
the same compiler flags, with the exception of these:

  ifneq (,$(filter $(gcc_version), 10.0))
    gcc_cxx_warnings += -Wredundant-tags -Wvolatile
  endif

which merely inhibit new gcc-10 warnings.