[newlib-cygwin] libm/riscv: Use common fma code when necessary

[Corinna Vinschen <corinna@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=a0d7982ff486292540078c0121a435013c5ee1ea

commit a0d7982ff486292540078c0121a435013c5ee1ea
Author: Keith Packard via Newlib <newlib@sourceware.org>
Date:   Thu Sep 3 13:54:33 2020 -0700

    libm/riscv: Use common fma code when necessary
    
    For RISC-V targets without hardware FMA support, include the
    common fma implementation to provide that API.
    
    Signed-off-by: Keith Packard <keithp@keithp.com>

Diff:
---
 newlib/libm/machine/riscv/s_fma.c  | 2 ++
 newlib/libm/machine/riscv/sf_fma.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/newlib/libm/machine/riscv/s_fma.c b/newlib/libm/machine/riscv/s_fma.c
index b7f378071..2d9ebfc99 100644
--- a/newlib/libm/machine/riscv/s_fma.c
+++ b/newlib/libm/machine/riscv/s_fma.c
@@ -46,4 +46,6 @@ fma (double x, double y, double z)
 	return result;
 }
 
+#else
+#include "../../common/s_fma.c"
 #endif
diff --git a/newlib/libm/machine/riscv/sf_fma.c b/newlib/libm/machine/riscv/sf_fma.c
index 8061a8abb..285c54883 100644
--- a/newlib/libm/machine/riscv/sf_fma.c
+++ b/newlib/libm/machine/riscv/sf_fma.c
@@ -46,4 +46,6 @@ fmaf (float x, float y, float z)
 	return result;
 }
 
+#else
+#include "../../common/sf_fma.c"
 #endif