-Upstream-Status: Pending\r
-\r
-2011-03-22 Joseph Myers <joseph@codesourcery.com>\r
-\r
- Merge from SG++ 2.11:\r
-\r
- 2010-10-05 Nathan Froyd <froydnj@codesourcery.com>\r
-\r
- Issue #9382\r
-\r
- * sysdeps/powerpc/powerpc32/603e/: New directory.\r
- * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/: New directory.\r
- * sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/: New directory.\r
- * sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/: New directory.\r
- * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c: Update.\r
- * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c: Update.\r
- * sysdeps/powerpc/powerpc64/e5500/fpu/Implies: New file.\r
-\r
-Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c\r
-@@ -0,0 +1,134 @@\r
-+/* Double-precision floating point square root.\r
-+ Copyright (C) 2010 Free Software Foundation, Inc.\r
-+ This file is part of the GNU C Library.\r
-+\r
-+ The GNU C Library is free software; you can redistribute it and/or\r
-+ modify it under the terms of the GNU Lesser General Public\r
-+ License as published by the Free Software Foundation; either\r
-+ version 2.1 of the License, or (at your option) any later version.\r
-+\r
-+ The GNU C Library is distributed in the hope that it will be useful,\r
-+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
-+ Lesser General Public License for more details.\r
-+\r
-+ You should have received a copy of the GNU Lesser General Public\r
-+ License along with the GNU C Library; if not, write to the Free\r
-+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA\r
-+ 02111-1307 USA. */\r
-+\r
-+#include <math.h>\r
-+#include <math_private.h>\r
-+#include <fenv_libc.h>\r
-+#include <inttypes.h>\r
-+\r
-+#include <sysdep.h>\r
-+#include <ldsodefs.h>\r
-+\r
-+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };\r
-+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };\r
-+static const float two108 = 3.245185536584267269e+32;\r
-+static const float twom54 = 5.551115123125782702e-17;\r
-+static const float half = 0.5;\r
-+\r
-+/* The method is based on the descriptions in:\r
-+\r
-+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;\r
-+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9\r
-+\r
-+ We find the actual square root and half of its reciprocal\r
-+ simultaneously. */\r
-+\r
-+#ifdef __STDC__\r
-+double\r
-+__ieee754_sqrt (double b)\r
-+#else\r
-+double\r
-+__ieee754_sqrt (b)\r
-+ double b;\r
-+#endif\r
-+{\r
-+ if (__builtin_expect (b > 0, 1))\r
-+ {\r
-+ double y, g, h, d, r;\r
-+ ieee_double_shape_type u;\r
-+\r
-+ if (__builtin_expect (b != a_inf.value, 1))\r
-+ {\r
-+ fenv_t fe;\r
-+\r
-+ fe = fegetenv_register ();\r
-+\r
-+ u.value = b;\r
-+\r
-+ relax_fenv_state ();\r
-+\r
-+ __asm__ ("frsqrte %[estimate], %[x]\n"\r
-+ : [estimate] "=f" (y) : [x] "f" (b));\r
-+\r
-+ /* Following Muller et al, page 168, equation 5.20.\r
-+\r
-+ h goes to 1/(2*sqrt(b))\r
-+ g goes to sqrt(b).\r
-+\r
-+ We need three iterations to get within 1ulp. */\r
-+\r
-+ /* Indicate that these can be performed prior to the branch. GCC\r
-+ insists on sinking them below the branch, however; it seems like\r
-+ they'd be better before the branch so that we can cover any latency\r
-+ from storing the argument and loading its high word. Oh well. */\r
-+\r
-+ g = b * y;\r
-+ h = 0.5 * y;\r
-+ \r
-+ /* Handle small numbers by scaling. */\r
-+ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0))\r
-+ return __ieee754_sqrt (b * two108) * twom54;\r
-+\r
-+#define FMADD(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+#define FNMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */\r
-+\r
-+ /* Final refinement. */\r
-+ d = FNMSUB (g, g, b);\r
-+\r
-+ fesetenv_register (fe);\r
-+ return FMADD (d, h, g);\r
-+ }\r
-+ }\r
-+ else if (b < 0)\r
-+ {\r
-+ /* For some reason, some PowerPC32 processors don't implement\r
-+ FE_INVALID_SQRT. */\r
-+#ifdef FE_INVALID_SQRT\r
-+ feraiseexcept (FE_INVALID_SQRT);\r
-+\r
-+ fenv_union_t u = { .fenv = fegetenv_register () };\r
-+ if ((u.l[1] & FE_INVALID) == 0)\r
-+#endif\r
-+ feraiseexcept (FE_INVALID);\r
-+ b = a_nan.value;\r
-+ }\r
-+ return f_wash (b);\r
-+}\r
-Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c\r
-@@ -0,0 +1,101 @@\r
-+/* Single-precision floating point square root.\r
-+ Copyright (C) 2010 Free Software Foundation, Inc.\r
-+ This file is part of the GNU C Library.\r
-+\r
-+ The GNU C Library is free software; you can redistribute it and/or\r
-+ modify it under the terms of the GNU Lesser General Public\r
-+ License as published by the Free Software Foundation; either\r
-+ version 2.1 of the License, or (at your option) any later version.\r
-+\r
-+ The GNU C Library is distributed in the hope that it will be useful,\r
-+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
-+ Lesser General Public License for more details.\r
-+\r
-+ You should have received a copy of the GNU Lesser General Public\r
-+ License along with the GNU C Library; if not, write to the Free\r
-+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA\r
-+ 02111-1307 USA. */\r
-+\r
-+#include <math.h>\r
-+#include <math_private.h>\r
-+#include <fenv_libc.h>\r
-+#include <inttypes.h>\r
-+\r
-+#include <sysdep.h>\r
-+#include <ldsodefs.h>\r
-+\r
-+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };\r
-+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };\r
-+static const float threehalf = 1.5;\r
-+\r
-+/* The method is based on the descriptions in:\r
-+\r
-+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;\r
-+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9\r
-+\r
-+ We find the reciprocal square root and use that to compute the actual\r
-+ square root. */\r
-+\r
-+#ifdef __STDC__\r
-+float\r
-+__ieee754_sqrtf (float b)\r
-+#else\r
-+float\r
-+__ieee754_sqrtf (b)\r
-+ float b;\r
-+#endif\r
-+{\r
-+ if (__builtin_expect (b > 0, 1))\r
-+ {\r
-+#define FMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+#define FNMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+\r
-+ if (__builtin_expect (b != a_inf.value, 1))\r
-+ {\r
-+ double y, x;\r
-+ fenv_t fe;\r
-+\r
-+ fe = fegetenv_register ();\r
-+\r
-+ relax_fenv_state ();\r
-+\r
-+ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */\r
-+ y = FMSUB (threehalf, b, b);\r
-+\r
-+ /* Initial estimate. */\r
-+ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b));\r
-+\r
-+ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+\r
-+ /* All done. */\r
-+ fesetenv_register (fe);\r
-+ return x * b;\r
-+ }\r
-+ }\r
-+ else if (b < 0)\r
-+ {\r
-+ /* For some reason, some PowerPC32 processors don't implement\r
-+ FE_INVALID_SQRT. */\r
-+#ifdef FE_INVALID_SQRT\r
-+ feraiseexcept (FE_INVALID_SQRT);\r
-+\r
-+ fenv_union_t u = { .fenv = fegetenv_register () };\r
-+ if ((u.l[1] & FE_INVALID) == 0)\r
-+#endif\r
-+ feraiseexcept (FE_INVALID);\r
-+ b = a_nan.value;\r
-+ }\r
-+ return f_washf (b);\r
-+}\r
-Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c\r
-@@ -0,0 +1,134 @@\r
-+/* Double-precision floating point square root.\r
-+ Copyright (C) 2010 Free Software Foundation, Inc.\r
-+ This file is part of the GNU C Library.\r
-+\r
-+ The GNU C Library is free software; you can redistribute it and/or\r
-+ modify it under the terms of the GNU Lesser General Public\r
-+ License as published by the Free Software Foundation; either\r
-+ version 2.1 of the License, or (at your option) any later version.\r
-+\r
-+ The GNU C Library is distributed in the hope that it will be useful,\r
-+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
-+ Lesser General Public License for more details.\r
-+\r
-+ You should have received a copy of the GNU Lesser General Public\r
-+ License along with the GNU C Library; if not, write to the Free\r
-+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA\r
-+ 02111-1307 USA. */\r
-+\r
-+#include <math.h>\r
-+#include <math_private.h>\r
-+#include <fenv_libc.h>\r
-+#include <inttypes.h>\r
-+\r
-+#include <sysdep.h>\r
-+#include <ldsodefs.h>\r
-+\r
-+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };\r
-+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };\r
-+static const float two108 = 3.245185536584267269e+32;\r
-+static const float twom54 = 5.551115123125782702e-17;\r
-+static const float half = 0.5;\r
-+\r
-+/* The method is based on the descriptions in:\r
-+\r
-+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;\r
-+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9\r
-+\r
-+ We find the actual square root and half of its reciprocal\r
-+ simultaneously. */\r
-+\r
-+#ifdef __STDC__\r
-+double\r
-+__ieee754_sqrt (double b)\r
-+#else\r
-+double\r
-+__ieee754_sqrt (b)\r
-+ double b;\r
-+#endif\r
-+{\r
-+ if (__builtin_expect (b > 0, 1))\r
-+ {\r
-+ double y, g, h, d, r;\r
-+ ieee_double_shape_type u;\r
-+\r
-+ if (__builtin_expect (b != a_inf.value, 1))\r
-+ {\r
-+ fenv_t fe;\r
-+\r
-+ fe = fegetenv_register ();\r
-+\r
-+ u.value = b;\r
-+\r
-+ relax_fenv_state ();\r
-+\r
-+ __asm__ ("frsqrte %[estimate], %[x]\n"\r
-+ : [estimate] "=f" (y) : [x] "f" (b));\r
-+\r
-+ /* Following Muller et al, page 168, equation 5.20.\r
-+\r
-+ h goes to 1/(2*sqrt(b))\r
-+ g goes to sqrt(b).\r
-+\r
-+ We need three iterations to get within 1ulp. */\r
-+\r
-+ /* Indicate that these can be performed prior to the branch. GCC\r
-+ insists on sinking them below the branch, however; it seems like\r
-+ they'd be better before the branch so that we can cover any latency\r
-+ from storing the argument and loading its high word. Oh well. */\r
-+\r
-+ g = b * y;\r
-+ h = 0.5 * y;\r
-+ \r
-+ /* Handle small numbers by scaling. */\r
-+ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0))\r
-+ return __ieee754_sqrt (b * two108) * twom54;\r
-+\r
-+#define FMADD(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+#define FNMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ r = FNMSUB (g, h, half);\r
-+ g = FMADD (g, r, g);\r
-+ h = FMADD (h, r, h);\r
-+\r
-+ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */\r
-+\r
-+ /* Final refinement. */\r
-+ d = FNMSUB (g, g, b);\r
-+\r
-+ fesetenv_register (fe);\r
-+ return FMADD (d, h, g);\r
-+ }\r
-+ }\r
-+ else if (b < 0)\r
-+ {\r
-+ /* For some reason, some PowerPC32 processors don't implement\r
-+ FE_INVALID_SQRT. */\r
-+#ifdef FE_INVALID_SQRT\r
-+ feraiseexcept (FE_INVALID_SQRT);\r
-+\r
-+ fenv_union_t u = { .fenv = fegetenv_register () };\r
-+ if ((u.l[1] & FE_INVALID) == 0)\r
-+#endif\r
-+ feraiseexcept (FE_INVALID);\r
-+ b = a_nan.value;\r
-+ }\r
-+ return f_wash (b);\r
-+}\r
-Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c\r
-@@ -0,0 +1,101 @@\r
-+/* Single-precision floating point square root.\r
-+ Copyright (C) 2010 Free Software Foundation, Inc.\r
-+ This file is part of the GNU C Library.\r
-+\r
-+ The GNU C Library is free software; you can redistribute it and/or\r
-+ modify it under the terms of the GNU Lesser General Public\r
-+ License as published by the Free Software Foundation; either\r
-+ version 2.1 of the License, or (at your option) any later version.\r
-+\r
-+ The GNU C Library is distributed in the hope that it will be useful,\r
-+ but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
-+ Lesser General Public License for more details.\r
-+\r
-+ You should have received a copy of the GNU Lesser General Public\r
-+ License along with the GNU C Library; if not, write to the Free\r
-+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA\r
-+ 02111-1307 USA. */\r
-+\r
-+#include <math.h>\r
-+#include <math_private.h>\r
-+#include <fenv_libc.h>\r
-+#include <inttypes.h>\r
-+\r
-+#include <sysdep.h>\r
-+#include <ldsodefs.h>\r
-+\r
-+static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };\r
-+static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };\r
-+static const float threehalf = 1.5;\r
-+\r
-+/* The method is based on the descriptions in:\r
-+\r
-+ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;\r
-+ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9\r
-+\r
-+ We find the reciprocal square root and use that to compute the actual\r
-+ square root. */\r
-+\r
-+#ifdef __STDC__\r
-+float\r
-+__ieee754_sqrtf (float b)\r
-+#else\r
-+float\r
-+__ieee754_sqrtf (b)\r
-+ float b;\r
-+#endif\r
-+{\r
-+ if (__builtin_expect (b > 0, 1))\r
-+ {\r
-+#define FMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+#define FNMSUB(a_, c_, b_) \\r
-+ ({ double __r; \\r
-+ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \\r
-+ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \\r
-+ __r;})\r
-+\r
-+ if (__builtin_expect (b != a_inf.value, 1))\r
-+ {\r
-+ double y, x;\r
-+ fenv_t fe;\r
-+\r
-+ fe = fegetenv_register ();\r
-+\r
-+ relax_fenv_state ();\r
-+\r
-+ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */\r
-+ y = FMSUB (threehalf, b, b);\r
-+\r
-+ /* Initial estimate. */\r
-+ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b));\r
-+\r
-+ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+ x = x * FNMSUB (y, x * x, threehalf);\r
-+\r
-+ /* All done. */\r
-+ fesetenv_register (fe);\r
-+ return x * b;\r
-+ }\r
-+ }\r
-+ else if (b < 0)\r
-+ {\r
-+ /* For some reason, some PowerPC32 processors don't implement\r
-+ FE_INVALID_SQRT. */\r
-+#ifdef FE_INVALID_SQRT\r
-+ feraiseexcept (FE_INVALID_SQRT);\r
-+\r
-+ fenv_union_t u = { .fenv = fegetenv_register () };\r
-+ if ((u.l[1] & FE_INVALID) == 0)\r
-+#endif\r
-+ feraiseexcept (FE_INVALID);\r
-+ b = a_nan.value;\r
-+ }\r
-+ return f_washf (b);\r
-+}\r
-Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies\r
-@@ -0,0 +1 @@\r
-+powerpc/powerpc32/603e/fpu\r
-Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies\r
-@@ -0,0 +1 @@\r
-+powerpc/powerpc32/603e/fpu\r
-Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies\r
-@@ -0,0 +1 @@\r
-+powerpc/powerpc32/603e/fpu\r
-Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies\r
-@@ -0,0 +1 @@\r
-+powerpc/powerpc64/e5500/fpu\r
-Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies\r
-===================================================================\r
---- /dev/null\r
-+++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies\r
-@@ -0,0 +1 @@\r
-+powerpc/powerpc32/603e/fpu\r
+Upstream-Status: Pending
+
+2011-03-22 Joseph Myers <joseph@codesourcery.com>
+
+ Merge from SG++ 2.11:
+
+ 2010-10-05 Nathan Froyd <froydnj@codesourcery.com>
+
+ Issue #9382
+
+ * sysdeps/powerpc/powerpc32/603e/: New directory.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/: New directory.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/: New directory.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/: New directory.
+ * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c: Update.
+ * sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c: Update.
+ * sysdeps/powerpc/powerpc64/e5500/fpu/Implies: New file.
+
+Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c
+===================================================================
+--- /dev/null
++++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrt.c
+@@ -0,0 +1,134 @@
++/* Double-precision floating point square root.
++ Copyright (C) 2010 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
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <math.h>
++#include <math_private.h>
++#include <fenv_libc.h>
++#include <inttypes.h>
++
++#include <sysdep.h>
++#include <ldsodefs.h>
++
++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };
++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };
++static const float two108 = 3.245185536584267269e+32;
++static const float twom54 = 5.551115123125782702e-17;
++static const float half = 0.5;
++
++/* The method is based on the descriptions in:
++
++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;
++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9
++
++ We find the actual square root and half of its reciprocal
++ simultaneously. */
++
++#ifdef __STDC__
++double
++__ieee754_sqrt (double b)
++#else
++double
++__ieee754_sqrt (b)
++ double b;
++#endif
++{
++ if (__builtin_expect (b > 0, 1))
++ {
++ double y, g, h, d, r;
++ ieee_double_shape_type u;
++
++ if (__builtin_expect (b != a_inf.value, 1))
++ {
++ fenv_t fe;
++
++ fe = fegetenv_register ();
++
++ u.value = b;
++
++ relax_fenv_state ();
++
++ __asm__ ("frsqrte %[estimate], %[x]\n"
++ : [estimate] "=f" (y) : [x] "f" (b));
++
++ /* Following Muller et al, page 168, equation 5.20.
++
++ h goes to 1/(2*sqrt(b))
++ g goes to sqrt(b).
++
++ We need three iterations to get within 1ulp. */
++
++ /* Indicate that these can be performed prior to the branch. GCC
++ insists on sinking them below the branch, however; it seems like
++ they'd be better before the branch so that we can cover any latency
++ from storing the argument and loading its high word. Oh well. */
++
++ g = b * y;
++ h = 0.5 * y;
++
++ /* Handle small numbers by scaling. */
++ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0))
++ return __ieee754_sqrt (b * two108) * twom54;
++
++#define FMADD(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++#define FNMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */
++
++ /* Final refinement. */
++ d = FNMSUB (g, g, b);
++
++ fesetenv_register (fe);
++ return FMADD (d, h, g);
++ }
++ }
++ else if (b < 0)
++ {
++ /* For some reason, some PowerPC32 processors don't implement
++ FE_INVALID_SQRT. */
++#ifdef FE_INVALID_SQRT
++ feraiseexcept (FE_INVALID_SQRT);
++
++ fenv_union_t u = { .fenv = fegetenv_register () };
++ if ((u.l[1] & FE_INVALID) == 0)
++#endif
++ feraiseexcept (FE_INVALID);
++ b = a_nan.value;
++ }
++ return f_wash (b);
++}
+Index: libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c
+===================================================================
+--- /dev/null
++++ libc/sysdeps/powerpc/powerpc32/603e/fpu/e_sqrtf.c
+@@ -0,0 +1,101 @@
++/* Single-precision floating point square root.
++ Copyright (C) 2010 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
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <math.h>
++#include <math_private.h>
++#include <fenv_libc.h>
++#include <inttypes.h>
++
++#include <sysdep.h>
++#include <ldsodefs.h>
++
++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };
++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };
++static const float threehalf = 1.5;
++
++/* The method is based on the descriptions in:
++
++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;
++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9
++
++ We find the reciprocal square root and use that to compute the actual
++ square root. */
++
++#ifdef __STDC__
++float
++__ieee754_sqrtf (float b)
++#else
++float
++__ieee754_sqrtf (b)
++ float b;
++#endif
++{
++ if (__builtin_expect (b > 0, 1))
++ {
++#define FMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++#define FNMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++
++ if (__builtin_expect (b != a_inf.value, 1))
++ {
++ double y, x;
++ fenv_t fe;
++
++ fe = fegetenv_register ();
++
++ relax_fenv_state ();
++
++ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */
++ y = FMSUB (threehalf, b, b);
++
++ /* Initial estimate. */
++ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b));
++
++ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */
++ x = x * FNMSUB (y, x * x, threehalf);
++ x = x * FNMSUB (y, x * x, threehalf);
++ x = x * FNMSUB (y, x * x, threehalf);
++
++ /* All done. */
++ fesetenv_register (fe);
++ return x * b;
++ }
++ }
++ else if (b < 0)
++ {
++ /* For some reason, some PowerPC32 processors don't implement
++ FE_INVALID_SQRT. */
++#ifdef FE_INVALID_SQRT
++ feraiseexcept (FE_INVALID_SQRT);
++
++ fenv_union_t u = { .fenv = fegetenv_register () };
++ if ((u.l[1] & FE_INVALID) == 0)
++#endif
++ feraiseexcept (FE_INVALID);
++ b = a_nan.value;
++ }
++ return f_washf (b);
++}
+Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c
+===================================================================
+--- /dev/null
++++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrt.c
+@@ -0,0 +1,134 @@
++/* Double-precision floating point square root.
++ Copyright (C) 2010 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
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <math.h>
++#include <math_private.h>
++#include <fenv_libc.h>
++#include <inttypes.h>
++
++#include <sysdep.h>
++#include <ldsodefs.h>
++
++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };
++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };
++static const float two108 = 3.245185536584267269e+32;
++static const float twom54 = 5.551115123125782702e-17;
++static const float half = 0.5;
++
++/* The method is based on the descriptions in:
++
++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;
++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9
++
++ We find the actual square root and half of its reciprocal
++ simultaneously. */
++
++#ifdef __STDC__
++double
++__ieee754_sqrt (double b)
++#else
++double
++__ieee754_sqrt (b)
++ double b;
++#endif
++{
++ if (__builtin_expect (b > 0, 1))
++ {
++ double y, g, h, d, r;
++ ieee_double_shape_type u;
++
++ if (__builtin_expect (b != a_inf.value, 1))
++ {
++ fenv_t fe;
++
++ fe = fegetenv_register ();
++
++ u.value = b;
++
++ relax_fenv_state ();
++
++ __asm__ ("frsqrte %[estimate], %[x]\n"
++ : [estimate] "=f" (y) : [x] "f" (b));
++
++ /* Following Muller et al, page 168, equation 5.20.
++
++ h goes to 1/(2*sqrt(b))
++ g goes to sqrt(b).
++
++ We need three iterations to get within 1ulp. */
++
++ /* Indicate that these can be performed prior to the branch. GCC
++ insists on sinking them below the branch, however; it seems like
++ they'd be better before the branch so that we can cover any latency
++ from storing the argument and loading its high word. Oh well. */
++
++ g = b * y;
++ h = 0.5 * y;
++
++ /* Handle small numbers by scaling. */
++ if (__builtin_expect ((u.parts.msw & 0x7ff00000) <= 0x02000000, 0))
++ return __ieee754_sqrt (b * two108) * twom54;
++
++#define FMADD(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fmadd %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++#define FNMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ r = FNMSUB (g, h, half);
++ g = FMADD (g, r, g);
++ h = FMADD (h, r, h);
++
++ /* g is now +/- 1ulp, or exactly equal to, the square root of b. */
++
++ /* Final refinement. */
++ d = FNMSUB (g, g, b);
++
++ fesetenv_register (fe);
++ return FMADD (d, h, g);
++ }
++ }
++ else if (b < 0)
++ {
++ /* For some reason, some PowerPC32 processors don't implement
++ FE_INVALID_SQRT. */
++#ifdef FE_INVALID_SQRT
++ feraiseexcept (FE_INVALID_SQRT);
++
++ fenv_union_t u = { .fenv = fegetenv_register () };
++ if ((u.l[1] & FE_INVALID) == 0)
++#endif
++ feraiseexcept (FE_INVALID);
++ b = a_nan.value;
++ }
++ return f_wash (b);
++}
+Index: libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c
+===================================================================
+--- /dev/null
++++ libc/sysdeps/powerpc/powerpc64/e5500/fpu/e_sqrtf.c
+@@ -0,0 +1,101 @@
++/* Single-precision floating point square root.
++ Copyright (C) 2010 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
++ modify it under the terms of the GNU Lesser General Public
++ License as published by the Free Software Foundation; either
++ version 2.1 of the License, or (at your option) any later version.
++
++ The GNU C Library is distributed in the hope that it will be useful,
++ but WITHOUT ANY WARRANTY; without even the implied warranty of
++ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ Lesser General Public License for more details.
++
++ You should have received a copy of the GNU Lesser General Public
++ License along with the GNU C Library; if not, write to the Free
++ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
++ 02111-1307 USA. */
++
++#include <math.h>
++#include <math_private.h>
++#include <fenv_libc.h>
++#include <inttypes.h>
++
++#include <sysdep.h>
++#include <ldsodefs.h>
++
++static const ieee_float_shape_type a_nan = {.word = 0x7fc00000 };
++static const ieee_float_shape_type a_inf = {.word = 0x7f800000 };
++static const float threehalf = 1.5;
++
++/* The method is based on the descriptions in:
++
++ _The Handbook of Floating-Pointer Arithmetic_ by Muller et al., chapter 5;
++ _IA-64 and Elementary Functions: Speed and Precision_ by Markstein, chapter 9
++
++ We find the reciprocal square root and use that to compute the actual
++ square root. */
++
++#ifdef __STDC__
++float
++__ieee754_sqrtf (float b)
++#else
++float
++__ieee754_sqrtf (b)
++ float b;
++#endif
++{
++ if (__builtin_expect (b > 0, 1))
++ {
++#define FMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++#define FNMSUB(a_, c_, b_) \
++ ({ double __r; \
++ __asm__ ("fnmsub %[r], %[a], %[c], %[b]\n" \
++ : [r] "=f" (__r) : [a] "f" (a_), [c] "f" (c_), [b] "f" (b_)); \
++ __r;})
++
++ if (__builtin_expect (b != a_inf.value, 1))
++ {
++ double y, x;
++ fenv_t fe;
++
++ fe = fegetenv_register ();
++
++ relax_fenv_state ();
++
++ /* Compute y = 1.5 * b - b. Uses fewer constants than y = 0.5 * b. */
++ y = FMSUB (threehalf, b, b);
++
++ /* Initial estimate. */
++ __asm__ ("frsqrte %[x], %[b]\n" : [x] "=f" (x) : [b] "f" (b));
++
++ /* Iterate. x_{n+1} = x_n * (1.5 - y * (x_n * x_n)). */
++ x = x * FNMSUB (y, x * x, threehalf);
++ x = x * FNMSUB (y, x * x, threehalf);
++ x = x * FNMSUB (y, x * x, threehalf);
++
++ /* All done. */
++ fesetenv_register (fe);
++ return x * b;
++ }
++ }
++ else if (b < 0)
++ {
++ /* For some reason, some PowerPC32 processors don't implement
++ FE_INVALID_SQRT. */
++#ifdef FE_INVALID_SQRT
++ feraiseexcept (FE_INVALID_SQRT);
++
++ fenv_union_t u = { .fenv = fegetenv_register () };
++ if ((u.l[1] & FE_INVALID) == 0)
++#endif
++ feraiseexcept (FE_INVALID);
++ b = a_nan.value;
++ }
++ return f_washf (b);
++}
+Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies
+===================================================================
+--- /dev/null
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/603e/fpu/Implies
+@@ -0,0 +1 @@
++powerpc/powerpc32/603e/fpu
+Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies
+===================================================================
+--- /dev/null
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/7400/fpu/Implies
+@@ -0,0 +1 @@
++powerpc/powerpc32/603e/fpu
+Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies
+===================================================================
+--- /dev/null
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e500mc/fpu/Implies
+@@ -0,0 +1 @@
++powerpc/powerpc32/603e/fpu
+Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies
+===================================================================
+--- /dev/null
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc64/e5500/fpu/Implies
+@@ -0,0 +1 @@
++powerpc/powerpc64/e5500/fpu
+Index: libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies
+===================================================================
+--- /dev/null
++++ libc/sysdeps/unix/sysv/linux/powerpc/powerpc32/e5500/fpu/Implies
+@@ -0,0 +1 @@
++powerpc/powerpc32/603e/fpu
projects / scm / bb / tizen-distro.git / commitdiff