From: Siddhesh Poyarekar <siddhesh@redhat.com>
Date: Thu, 21 Feb 2013 06:47:29 +0000 (+0530)
Subject: Mark ZERO inputs to __mul as unlikely on powerpc
X-Git-Tag: glibc-2.18~668
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c7a4263afe8304e127ae2888950f02c8bc9a9f9;p=thirdparty%2Fglibc.git

Mark ZERO inputs to __mul as unlikely on powerpc

Syncs up with generic code.
---

diff --git a/ChangeLog b/ChangeLog
index 5d2a885a812..fa98152d6d3 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 be357a63af1..f4500df629a 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 be357a63af1..f4500df629a 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;