https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92875
--- Comment #4 from anders at wahrzeichnen dot de <anders at wahrzeichnen dot de> --- I don't know about other archs, but on amd64, GCC emits comiss insns (SSE2 single-precision scalar compare) for f0, f1, and f2 and comisd insns (SSE2 double-precision scalar compare) for f3. So this is evidently not a problem on amd64 (i.e. it does not depend on how the decimal-to-binary rounding was done for the value 0.1). Conclusion: Ignoring the 'f' suffix seems to be specific for 387.
