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-rw-r--r--gcc-4.9/libgcc/config/m32c/lib2funcs.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/m32c/lib2funcs.c b/gcc-4.9/libgcc/config/m32c/lib2funcs.c
new file mode 100644
index 000000000..0bc6c194b
--- /dev/null
+++ b/gcc-4.9/libgcc/config/m32c/lib2funcs.c
@@ -0,0 +1,147 @@
+/* libgcc routines for R8C/M16C/M32C
+ Copyright (C) 2005-2014 Free Software Foundation, Inc.
+ Contributed by Red Hat.
+
+ This file is part of GCC.
+
+ GCC is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, or (at your
+ option) any later version.
+
+ GCC 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 General Public
+ License for more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+typedef int sint32_type __attribute__ ((mode (SI)));
+typedef unsigned int uint32_type __attribute__ ((mode (SI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+uint32_type udivmodsi4 (uint32_type, uint32_type, word_type);
+sint32_type __divsi3 (sint32_type, sint32_type);
+sint32_type __modsi3 (sint32_type, sint32_type);
+
+uint32_type
+udivmodsi4 (uint32_type num, uint32_type den, word_type modwanted)
+{
+ uint32_type bit = 1;
+ uint32_type res = 0;
+
+ while (den < num && bit && !(den & (1L << 31)))
+ {
+ den <<= 1;
+ bit <<= 1;
+ }
+ while (bit)
+ {
+ if (num >= den)
+ {
+ num -= den;
+ res |= bit;
+ }
+ bit >>= 1;
+ den >>= 1;
+ }
+ if (modwanted)
+ return num;
+ return res;
+}
+
+sint32_type
+__divsi3 (sint32_type a, sint32_type b)
+{
+ word_type neg = 0;
+ sint32_type res;
+
+ if (a < 0)
+ {
+ a = -a;
+ neg = !neg;
+ }
+
+ if (b < 0)
+ {
+ b = -b;
+ neg = !neg;
+ }
+
+ res = udivmodsi4 (a, b, 0);
+
+ if (neg)
+ res = -res;
+
+ return res;
+}
+
+sint32_type
+__modsi3 (sint32_type a, sint32_type b)
+{
+ word_type neg = 0;
+ sint32_type res;
+
+ if (a < 0)
+ {
+ a = -a;
+ neg = 1;
+ }
+
+ if (b < 0)
+ b = -b;
+
+ res = udivmodsi4 (a, b, 1);
+
+ if (neg)
+ res = -res;
+
+ return res;
+}
+
+/* See the comment by the definition of LIBGCC2_UNITS_PER_WORD in
+ m32c.h for why we are creating extra versions of some of the
+ functions defined in libgcc2.c. */
+
+#define LIBGCC2_UNITS_PER_WORD 2
+
+#define L_clzsi2
+#define L_ctzsi2
+#define L_ffssi2
+#define L_paritysi2
+#define L_popcountsi2
+
+#include "libgcc2.c"
+
+uint32_type
+__udivsi3 (uint32_type a, uint32_type b)
+{
+ return udivmodsi4 (a, b, 0);
+}
+
+uint32_type
+__umoddi3 (uint32_type a, uint32_type b)
+{
+ return udivmodsi4 (a, b, 1);
+}
+
+/* Returns the number of leading redundant sign bits in X.
+ I.e. the number of bits following the most significant bit which are
+ identical to it. There are no special cases for 0 or other values. */
+
+int
+__clrsbhi2 (word_type x)
+{
+ if (x < 0)
+ x = ~x;
+ if (x == 0)
+ return 15;
+ return __builtin_clz (x) - 1;
+}