On Thu, 21 Sept 2023, 09:59 Mathieu Malaterre via Gcc-help, <
gcc-help@xxxxxxxxxxx> wrote:
> Hi all,
>
> I am tracking an issue in my code. I can make the symptom go away with a
> simple:
>
> fprintf(stdout, "%.17g\n", value);
>
> However this has a rather large impact on the generated code (diffstat
> of assembly code is ~~789). Is there any other trick to pretend to
> load value from FPU into the stack ?
>
Maybe something like:
__asm ("" : "m" (value));
> I tried a naive
>
> volatile double dbg = value; (void)dbg;
>
> but that did not work.
>
> For reference: g++-13 / x86 (-m32 -fexcess-precision=fast).
>
> Thanks,
> --
> Mathieu
>
