[Bug target/106165] incorrect result when using inlined asm implementation of floor() on i686

[xeioexception at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106165

--- Comment #5 from xeioex <xeioexception at gmail dot com> ---
My question is more practical. For example while `-fexcess-precision=standard`
fixes the problem in GCC. But, I am left with the same problem regarding other
compilers. At least am looking for a way to detect excessive precision as soon
as possible (during configure time).

Tried to use FLT_EVAL_METHOD

t.c
```
#include <stdio.h>
#include <math.h>
#include <float.h>
#include <fenv.h>

int main(){
  printf("%d\n", (int) FLT_EVAL_METHOD);
}
```

1) gcc -o t t.c && ./t
2

2) gcc -fexcess-precision=standard -o t t.c && ./t
2


How am I expected to use FLT_EVAL_METHOD correctly?