Optimize libm

libm is now somewhat integrated with gcc's -ffinite-math-only option
and lots of the wrapper functions have been optimized.

6 files changed, 15 insertions, 33 deletions

diff --git a/sysdeps/powerpc/fpu/e_hypot.c b/sysdeps/powerpc/fpu/e_hypot.c
index afbcc18e9e..a8d67d875e 100644
--- a/sysdeps/powerpc/fpu/e_hypot.c
+++ b/sysdeps/powerpc/fpu/e_hypot.c
@@ -115,3 +115,4 @@ __ieee754_hypot (double x, double y)
     }
   return __ieee754_sqrt (x * x + y * y);
 }
+strong_alias (__ieee754_hypot, __hypot_finite)
diff --git a/sysdeps/powerpc/fpu/e_hypotf.c b/sysdeps/powerpc/fpu/e_hypotf.c
index 02ad7732b9..915738c4d5 100644
--- a/sysdeps/powerpc/fpu/e_hypotf.c
+++ b/sysdeps/powerpc/fpu/e_hypotf.c
@@ -116,3 +116,4 @@ __ieee754_hypotf (float x, float y)
     }
   return __ieee754_sqrtf (x * x + y * y);
 }
+strong_alias (__ieee754_hypotf, __hypotf_finite)
diff --git a/sysdeps/powerpc/fpu/e_sqrt.c b/sysdeps/powerpc/fpu/e_sqrt.c
index e95b786a00..f9ded25717 100644
--- a/sysdeps/powerpc/fpu/e_sqrt.c
+++ b/sysdeps/powerpc/fpu/e_sqrt.c
@@ -1,5 +1,5 @@
 /* Double-precision floating point square root.
-   Copyright (C) 1997, 2002, 2003, 2004, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2002-2004, 2008, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,21 +46,15 @@ extern const float __t_sqrt[1024];
    generated guesses (which mostly runs on the integer unit, while the
    Newton-Raphson is running on the FPU).  */
 
-#ifdef __STDC__
 double
 __slow_ieee754_sqrt (double x)
-#else
-double
-__slow_ieee754_sqrt (x)
-     double x;
-#endif
 {
   const float inf = a_inf.value;
 
   if (x > 0)
     {
       /* schedule the EXTRACT_WORDS to get separation between the store
-         and the load.  */
+	 and the load.  */
       ieee_double_shape_type ew_u;
       ieee_double_shape_type iw_u;
       ew_u.value = (x);
@@ -147,7 +141,7 @@ __slow_ieee754_sqrt (x)
   else if (x < 0)
     {
       /* For some reason, some PowerPC32 processors don't implement
-         FE_INVALID_SQRT.  */
+	 FE_INVALID_SQRT.  */
 #ifdef FE_INVALID_SQRT
       feraiseexcept (FE_INVALID_SQRT);
 
@@ -160,14 +154,8 @@ __slow_ieee754_sqrt (x)
   return f_wash (x);
 }
 
-#ifdef __STDC__
 double
 __ieee754_sqrt (double x)
-#else
-double
-__ieee754_sqrt (x)
-     double x;
-#endif
 {
   double z;
 
@@ -175,7 +163,7 @@ __ieee754_sqrt (x)
   if (__CPU_HAS_FSQRT)
     {
       /* Volatile is required to prevent the compiler from moving the
-         fsqrt instruction above the branch.  */
+	 fsqrt instruction above the branch.  */
       __asm __volatile ("	fsqrt	%0,%1\n"
 				:"=f" (z):"f" (x));
     }
@@ -184,3 +172,4 @@ __ieee754_sqrt (x)
 
   return z;
 }
+strong_alias (__ieee754_sqrt, __sqrt_finite)
diff --git a/sysdeps/powerpc/fpu/e_sqrtf.c b/sysdeps/powerpc/fpu/e_sqrtf.c
index ca44fac559..965faee842 100644
--- a/sysdeps/powerpc/fpu/e_sqrtf.c
+++ b/sysdeps/powerpc/fpu/e_sqrtf.c
@@ -1,5 +1,5 @@
 /* Single-precision floating point square root.
-   Copyright (C) 1997, 2003, 2004, 2008 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2003, 2004, 2008, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -46,14 +46,8 @@ extern const float __t_sqrt[1024];
    generated guesses (which mostly runs on the integer unit, while the
    Newton-Raphson is running on the FPU).  */
 
-#ifdef __STDC__
 float
 __slow_ieee754_sqrtf (float x)
-#else
-float
-__slow_ieee754_sqrtf (x)
-     float x;
-#endif
 {
   const float inf = a_inf.value;
 
@@ -123,7 +117,7 @@ __slow_ieee754_sqrtf (x)
   else if (x < 0)
     {
       /* For some reason, some PowerPC32 processors don't implement
-         FE_INVALID_SQRT.  */
+	 FE_INVALID_SQRT.  */
 #ifdef FE_INVALID_SQRT
       feraiseexcept (FE_INVALID_SQRT);
 
@@ -137,14 +131,8 @@ __slow_ieee754_sqrtf (x)
 }
 
 
-#ifdef __STDC__
 float
 __ieee754_sqrtf (float x)
-#else
-float
-__ieee754_sqrtf (x)
-     float x;
-#endif
 {
   double z;
 
@@ -152,7 +140,7 @@ __ieee754_sqrtf (x)
   if (__CPU_HAS_FSQRT)
     {
       /* Volatile is required to prevent the compiler from moving the
-         fsqrt instruction above the branch.  */
+	 fsqrt instruction above the branch.  */
       __asm __volatile ("	fsqrts	%0,%1\n"
 				:"=f" (z):"f" (x));
     }
@@ -161,3 +149,4 @@ __ieee754_sqrtf (x)
 
   return z;
 }
+strong_alias (__ieee754_sqrtf, __sqrtf_finite)
diff --git a/sysdeps/powerpc/powerpc64/fpu/e_sqrt.c b/sysdeps/powerpc/powerpc64/fpu/e_sqrt.c
index 0a229cbe27..314abba3b2 100644
--- a/sysdeps/powerpc/powerpc64/fpu/e_sqrt.c
+++ b/sysdeps/powerpc/powerpc64/fpu/e_sqrt.c
@@ -1,5 +1,5 @@
 /* Double-precision floating point square root.
-   Copyright (C) 1997, 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2002-2004, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -27,3 +27,4 @@ __ieee754_sqrt (double x)
   __asm __volatile ("fsqrt %0,%1" : "=f" (z) : "f" (x));
   return z;
 }
+strong_alias (__ieee754_sqrt, __sqrt_finite)
diff --git a/sysdeps/powerpc/powerpc64/fpu/e_sqrtf.c b/sysdeps/powerpc/powerpc64/fpu/e_sqrtf.c
index 0f17a64a8a..7157214394 100644
--- a/sysdeps/powerpc/powerpc64/fpu/e_sqrtf.c
+++ b/sysdeps/powerpc/powerpc64/fpu/e_sqrtf.c
@@ -1,5 +1,5 @@
 /* Single-precision floating point square root.
-   Copyright (C) 1997, 2003, 2004, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2003, 2004, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -27,3 +27,4 @@ __ieee754_sqrtf (float x)
   __asm ("fsqrts %0,%1" : "=f" (z) : "f" (x));
   return z;
 }
+strong_alias (__ieee754_sqrtf, __sqrtf_finite)