From: Corinna Vinschen <vinschen@redhat.com>
To: "Maciej W. Rozycki" <macro@embecosm.com>
Cc: newlib@sourceware.org, Kito Cheng <kito.cheng@gmail.com>
Subject: Re: [PATCH] RISC-V: Fix floating-point environment support for soft float
Date: Fri, 27 Jan 2023 14:26:28 +0100 [thread overview]
Message-ID: <Y9PRBNQG/OAne6DR@calimero.vinschen.de> (raw)
In-Reply-To: <alpine.DEB.2.20.2301270123150.7841@tpp.orcam.me.uk>
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
prev parent reply other threads:[~2023-01-27 13:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-27 8:53 Maciej W. Rozycki
2023-01-27 9:08 ` Kito Cheng
2023-01-27 13:26 ` Corinna Vinschen [this message]
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