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Message-ID: <20240612141405.GS10433@brightrain.aerifal.cx> Date: Wed, 12 Jun 2024 10:14:05 -0400 From: Rich Felker <dalias@...c.org> To: Meng Zhuo <mzh@....io> Cc: musl@...ts.openwall.com Subject: Re: [PATCH 1/2] math: add riscv64 llround/llroundf On Wed, Jun 12, 2024 at 05:00:17PM +0800, Meng Zhuo wrote: > --- > src/math/riscv64/llround.c | 16 ++++++++++++++++ > src/math/riscv64/llroundf.c | 16 ++++++++++++++++ > 2 files changed, 32 insertions(+) > create mode 100644 src/math/riscv64/llround.c > create mode 100644 src/math/riscv64/llroundf.c > > diff --git a/src/math/riscv64/llround.c b/src/math/riscv64/llround.c > new file mode 100644 > index 00000000..fa646b5a > --- /dev/null > +++ b/src/math/riscv64/llround.c > @@ -0,0 +1,16 @@ > +#include <math.h> > + > +#if __riscv_flen >= 64 > + > +long long llround(double x) > +{ > + long long n; > + __asm__ ("fcvt.l.d %0, %1, rmm" : "=r"(n) : "f"(x)); > + return n; > +} > + > +#else > + > +#include "../llround.c" > + > +#endif > diff --git a/src/math/riscv64/llroundf.c b/src/math/riscv64/llroundf.c > new file mode 100644 > index 00000000..db2d58df > --- /dev/null > +++ b/src/math/riscv64/llroundf.c > @@ -0,0 +1,16 @@ > +#include <math.h> > + > +#if __riscv_flen >= 32 > + > +long long llroundf(float x) > +{ > + long long n; > + __asm__ ("fcvt.l.s %0, %1, rmm" : "=r"(n) : "f"(x)); > + return n; > +} > + > +#else > + > +#include "../llroundf.c" > + > +#endif > -- > 2.39.2 Is there a reason you only did llround[f] and not lround[f]? Rich
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