From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Fri, 10 Oct 2025 17:49:21 +0000 (-0300)
Subject: math: Remove asinhf fma usage
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68cb78eccc959ce9a7344ddb5d90c6b2e08bb3c6;p=thirdparty%2Fglibc.git

math: Remove asinhf fma usage

The fma is not required to provide correctly rounded and it helps
on !__FP_FAST_FMA ISAs.

Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
---

diff --git a/sysdeps/ieee754/flt-32/s_asinhf.c b/sysdeps/ieee754/flt-32/s_asinhf.c
index 9353b421d4..471a448992 100644
--- a/sysdeps/ieee754/flt-32/s_asinhf.c
+++ b/sysdeps/ieee754/flt-32/s_asinhf.c
@@ -84,10 +84,10 @@ __asinhf (float x)
 	  const double ln2h = 0x1.62e4p-1;
 	  double Lh = ln2h * e;
 	  double Ll = ln2l * e;
-	  r = fma (z, c0, Ll + LIX[j]) + Lh;
+	  r = (z * c0 + (Ll + LIX[j])) + Lh;
 	  if (__glibc_unlikely ((asuint64 (r) & INT64_C(0xfffffff)) == 0))
 	    {
-	      double h = fma (z, c0, Ll + LIX[j]) + (Lh - r);
+	      double h = (z * c0 + (Ll + LIX[j])) + (Lh - r);
 	      r = r + 64 * h;
 	    }
 	}