Add gcc-4.6. Synced to @180989

Change-Id: Ie3676586e1d8e3c8cd9f07d022f450d05fa08439
svn://gcc.gnu.org/svn/gcc/branches/google/gcc-4_6-mobile

1 files changed, 166 insertions, 0 deletions

diff --git a/gcc-4.6/libquadmath/quadmath-imp.h b/gcc-4.6/libquadmath/quadmath-imp.h
new file mode 100644
index 000000000..db34a92f0
--- /dev/null
+++ b/gcc-4.6/libquadmath/quadmath-imp.h
@@ -0,0 +1,166 @@
+/* GCC Quad-Precision Math Library
+   Copyright (C) 2010, 2011 Free Software Foundation, Inc.
+   Written by Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+This file is part of the libquadmath library.
+Libquadmath is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+Libquadmath 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with libquadmath; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#ifndef QUADMATH_IMP_H
+#define QUADMATH_IMP_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include "quadmath.h"
+#include "config.h"
+
+
+/* Prototypes for internal functions.  */
+extern int32_t __quadmath_rem_pio2q (__float128, __float128 *);
+extern void __quadmath_kernel_sincosq (__float128, __float128, __float128 *,
+				       __float128 *, int);
+extern __float128 __quadmath_kernel_sinq (__float128, __float128, int);
+extern __float128 __quadmath_kernel_cosq (__float128, __float128);
+
+
+
+/* Frankly, if you have __float128, you have 64-bit integers, right?  */
+#ifndef UINT64_C
+# error "No way!"
+#endif
+
+
+/* Main union type we use to manipulate the floating-point type.  */
+typedef union
+{
+  __float128 value;
+
+  struct
+  {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+    unsigned negative:1;
+    unsigned exponent:15;
+    uint64_t mant_high:48;
+    uint64_t mant_low:64;
+#else
+    uint64_t mant_low:64;
+    uint64_t mant_high:48;
+    unsigned exponent:15;
+    unsigned negative:1;
+#endif
+  } ieee;
+
+  struct
+  {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+    uint64_t high;
+    uint64_t low;
+#else
+    uint64_t low;
+    uint64_t high;
+#endif
+  } words64;
+
+  struct
+  {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+    uint32_t w0;
+    uint32_t w1;
+    uint32_t w2;
+    uint32_t w3;
+#else
+    uint32_t w3;
+    uint32_t w2;
+    uint32_t w1;
+    uint32_t w0;
+#endif
+  } words32;
+
+  struct
+  {
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+    unsigned negative:1;
+    unsigned exponent:15;
+    unsigned quiet_nan:1;
+    uint64_t mant_high:47;
+    uint64_t mant_low:64;
+#else
+    uint64_t mant_low:64;
+    uint64_t mant_high:47;
+    unsigned quiet_nan:1;
+    unsigned exponent:15;
+    unsigned negative:1;
+#endif
+  } nan;
+
+} ieee854_float128;
+
+
+/* Get two 64 bit ints from a long double.  */
+#define GET_FLT128_WORDS64(ix0,ix1,d)  \
+do {                                   \
+  ieee854_float128 u;                  \
+  u.value = (d);                       \
+  (ix0) = u.words64.high;              \
+  (ix1) = u.words64.low;               \
+} while (0)
+
+/* Set a long double from two 64 bit ints.  */
+#define SET_FLT128_WORDS64(d,ix0,ix1)  \
+do {                                   \
+  ieee854_float128 u;                  \
+  u.words64.high = (ix0);              \
+  u.words64.low = (ix1);               \
+  (d) = u.value;                       \
+} while (0)
+
+/* Get the more significant 64 bits of a long double mantissa.  */
+#define GET_FLT128_MSW64(v,d)          \
+do {                                   \
+  ieee854_float128 u;                  \
+  u.value = (d);                       \
+  (v) = u.words64.high;                \
+} while (0)
+
+/* Set the more significant 64 bits of a long double mantissa from an int.  */
+#define SET_FLT128_MSW64(d,v)          \
+do {                                   \
+  ieee854_float128 u;                  \
+  u.value = (d);                       \
+  u.words64.high = (v);                \
+  (d) = u.value;                       \
+} while (0)
+
+/* Get the least significant 64 bits of a long double mantissa.  */
+#define GET_FLT128_LSW64(v,d)          \
+do {                                   \
+  ieee854_float128 u;                  \
+  u.value = (d);                       \
+  (v) = u.words64.low;                 \
+} while (0)
+
+
+#define IEEE854_FLOAT128_BIAS 0x3fff
+
+#define QUADFP_NAN		0
+#define QUADFP_INFINITE		1
+#define QUADFP_ZERO		2
+#define QUADFP_SUBNORMAL	3
+#define QUADFP_NORMAL		4
+#define fpclassifyq(x) \
+  __builtin_fpclassify (QUADFP_NAN, QUADFP_INFINITE, QUADFP_NORMAL, \
+			QUADFP_SUBNORMAL, QUADFP_ZERO, x)
+
+#endif