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-rw-r--r--ChangeLog4
-rw-r--r--sysdeps/ieee754/flt-32/s_sinf.c6
2 files changed, 7 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index bcc49a1dc5..15da4e7937 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2017-12-05  Szabolcs Nagy  <szabolcs.nagy@arm.com>
+
+	* sysdeps/ieee754/flt-32/s_sinf.c (sinf): Use isless.
+
 2017-12-05  Joseph Myers  <joseph@codesourcery.com>
 
 	* stdlib/strfromd.c: Include <bits/floatn.h>.
diff --git a/sysdeps/ieee754/flt-32/s_sinf.c b/sysdeps/ieee754/flt-32/s_sinf.c
index 0b76477d22..8b98573ae4 100644
--- a/sysdeps/ieee754/flt-32/s_sinf.c
+++ b/sysdeps/ieee754/flt-32/s_sinf.c
@@ -128,7 +128,7 @@ SINF_FUNC (float x)
   double theta = x;
   double abstheta = fabs (theta);
   /* If |x|< Pi/4.  */
-  if (abstheta < M_PI_4)
+  if (isless (abstheta, M_PI_4))
     {
       if (abstheta >= 0x1p-5) /* |x| >= 2^-5.  */
 	{
@@ -162,8 +162,8 @@ SINF_FUNC (float x)
     }
   else                          /* |x| >= Pi/4.  */
     {
-      unsigned int signbit = (x < 0);
-      if (abstheta < 9 * M_PI_4)        /* |x| < 9*Pi/4.  */
+      unsigned int signbit = isless (x, 0);
+      if (isless (abstheta, 9 * M_PI_4))        /* |x| < 9*Pi/4.  */
 	{
 	  /* There are cases where FE_UPWARD rounding mode can
 	     produce a result of abstheta * inv_PI_4 == 9,