Mark ZERO inputs to __mul as unlikely on powerpc

Syncs up with generic code.

3 files changed, 9 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index 5d2a885..fa98152 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2013-02-21  Siddhesh Poyarekar  <siddhesh@redhat.com>
+
+	* sysdeps/powerpc/powerpc32/power4/fpu/mpa.c (__mul): Mark X
+	or Y being zero as being unlikely.
+	* sysdeps/powerpc/powerpc64/power4/fpu/mpa.c (__mul):
+	Likewise.
+
 2013-02-20  Carlos O'Donell  <carlos@redhat.com>
 
 	* manual/nss.texi (System Databases and Name Service Switch):
diff --git a/sysdeps/powerpc/powerpc32/power4/fpu/mpa.c b/sysdeps/powerpc/powerpc32/power4/fpu/mpa.c
index be357a6..f4500df 100644
--- a/sysdeps/powerpc/powerpc32/power4/fpu/mpa.c
+++ b/sysdeps/powerpc/powerpc32/power4/fpu/mpa.c
@@ -599,7 +599,7 @@ __mul (const mp_no *x, const mp_no *y, mp_no *z, int p)
   double u, zk, zk2;
 
   /* Is z=0?  */
-  if (X[0] * Y[0] == ZERO)
+  if (__glibc_unlikely (X[0] * Y[0] == ZERO))
     {
       Z[0] = ZERO;
       return;
diff --git a/sysdeps/powerpc/powerpc64/power4/fpu/mpa.c b/sysdeps/powerpc/powerpc64/power4/fpu/mpa.c
index be357a6..f4500df 100644
--- a/sysdeps/powerpc/powerpc64/power4/fpu/mpa.c
+++ b/sysdeps/powerpc/powerpc64/power4/fpu/mpa.c
@@ -599,7 +599,7 @@ __mul (const mp_no *x, const mp_no *y, mp_no *z, int p)
   double u, zk, zk2;
 
   /* Is z=0?  */
-  if (X[0] * Y[0] == ZERO)
+  if (__glibc_unlikely (X[0] * Y[0] == ZERO))
     {
       Z[0] = ZERO;
       return;