[PATCH] RISC-V: Fix floating-point environment support for soft float

[Corinna Vinschen]

On Jan 27 08:53, Maciej W. Rozycki wrote:
> We don't have floating-point exception or non-default rounding mode 
> support for the RISC-V soft-float environment, `feraiseexcept' and 
> `fesetround' do nothing unless the `__riscv_flen' macro has been set. 
> Therefore following ISO C language requirements[1] only define macros 
> for soft float that correspond to actually supported floating-point 
> environment features, removing failures from GCC testing such as:
> 
> FAIL: gcc.dg/torture/fp-int-convert-timode-3.c   -O0  execution test
> FAIL: gcc.dg/torture/fp-int-convert-timode-4.c   -O0  execution test
> 
> References:
> 
> [1] "Programming languages -- C", ISO/IEC 9899:2023, working draft --
>     September 3, 2022, Section 7.6 "Floating-point environment <fenv.h>"
> 
> Fixes: 7040b2de0883 ("Add RISC-V port for libm")
> Signed-off-by: Maciej W. Rozycki <macro@embecosm.com>
> ---
>  newlib/libc/machine/riscv/sys/fenv.h |    9 +++++++++
>  1 file changed, 9 insertions(+)

Pushed.


Thanks,
Corinna