From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon, 25 Aug 2025 16:38:32 +0000 (-0300)
Subject: math: Use internal fesetround alias on fma
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f40cdb65f53cb557b9be28580d98068935414dae;p=thirdparty%2Fglibc.git

math: Use internal fesetround alias on fma

To avoid linknamespace issues on old standards.  It is required
if the fallback fma implementation is used if/when it is also
used internally for other implementation.
Reviewed-by: DJ Delorie <dj@redhat.com>
---

diff --git a/sysdeps/ieee754/ldbl-128/s_fma.c b/sysdeps/ieee754/ldbl-128/s_fma.c
index a5466b67c5..01ca556260 100644
--- a/sysdeps/ieee754/ldbl-128/s_fma.c
+++ b/sysdeps/ieee754/ldbl-128/s_fma.c
@@ -51,7 +51,7 @@ __fma (double x, double y, double z)
 
   union ieee854_long_double u;
   __feholdexcept (&env);
-  fesetround (FE_TOWARDZERO);
+  __fesetround (FE_TOWARDZERO);
   /* Perform addition with round to odd.  */
   u.d = temp + (long double) z;
   if ((u.ieee.mantissa3 & 1) == 0 && u.ieee.exponent != 0x7fff)
diff --git a/sysdeps/ieee754/ldbl-128/s_fmal.c b/sysdeps/ieee754/ldbl-128/s_fmal.c
index f52a21306d..17ad90ca31 100644
--- a/sysdeps/ieee754/ldbl-128/s_fmal.c
+++ b/sysdeps/ieee754/ldbl-128/s_fmal.c
@@ -195,7 +195,7 @@ __fmal (_Float128 x, _Float128 y, _Float128 z)
 
   fenv_t env;
   __feholdexcept (&env);
-  fesetround (FE_TONEAREST);
+  __fesetround (FE_TONEAREST);
 
   /* Multiplication m1 + m2 = x * y using Dekker's algorithm.  */
 #define C ((1LL << (LDBL_MANT_DIG + 1) / 2) + 1)
@@ -229,7 +229,7 @@ __fmal (_Float128 x, _Float128 y, _Float128 z)
       return z + m1;
     }
 
-  fesetround (FE_TOWARDZERO);
+  __fesetround (FE_TOWARDZERO);
   /* Perform m2 + a2 addition with round to odd.  */
   u.d = a2 + m2;
 
diff --git a/sysdeps/ieee754/ldbl-96/s_fma.c b/sysdeps/ieee754/ldbl-96/s_fma.c
index 9723c5a797..a9abf8f1de 100644
--- a/sysdeps/ieee754/ldbl-96/s_fma.c
+++ b/sysdeps/ieee754/ldbl-96/s_fma.c
@@ -52,7 +52,7 @@ __fma (double x, double y, double z)
 
   fenv_t env;
   __feholdexcept (&env);
-  fesetround (FE_TONEAREST);
+  __fesetround (FE_TONEAREST);
 
   /* Multiplication m1 + m2 = x * y using Dekker's algorithm.  */
 #define C ((1ULL << (LDBL_MANT_DIG + 1) / 2) + 1)
@@ -86,7 +86,7 @@ __fma (double x, double y, double z)
       return z + m1;
     }
 
-  fesetround (FE_TOWARDZERO);
+  __fesetround (FE_TOWARDZERO);
   /* Perform m2 + a2 addition with round to odd.  */
   a2 = a2 + m2;
 
diff --git a/sysdeps/ieee754/ldbl-96/s_fmal.c b/sysdeps/ieee754/ldbl-96/s_fmal.c
index c923bc9fff..be5528d96b 100644
--- a/sysdeps/ieee754/ldbl-96/s_fmal.c
+++ b/sysdeps/ieee754/ldbl-96/s_fmal.c
@@ -185,7 +185,7 @@ __fmal (long double x, long double y, long double z)
 
   fenv_t env;
   __feholdexcept (&env);
-  fesetround (FE_TONEAREST);
+  __fesetround (FE_TONEAREST);
 
   /* Multiplication m1 + m2 = x * y using Dekker's algorithm.  */
 #define C ((1LL << (LDBL_MANT_DIG + 1) / 2) + 1)
@@ -219,7 +219,7 @@ __fmal (long double x, long double y, long double z)
       return z + m1;
     }
 
-  fesetround (FE_TOWARDZERO);
+  __fesetround (FE_TOWARDZERO);
   /* Perform m2 + a2 addition with round to odd.  */
   u.d = a2 + m2;