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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/libgcc/config/frv/cmovh.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/libgcc/config/frv/cmovh.c')
-rw-r--r--gcc-4.9/libgcc/config/frv/cmovh.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/frv/cmovh.c b/gcc-4.9/libgcc/config/frv/cmovh.c
new file mode 100644
index 000000000..531e7aad5
--- /dev/null
+++ b/gcc-4.9/libgcc/config/frv/cmovh.c
@@ -0,0 +1,47 @@
+/* Move half-word library function.
+ Copyright (C) 2000-2014 Free Software Foundation, Inc.
+ Contributed by Red Hat, Inc.
+
+ 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/>. */
+
+void
+__cmovh (short *dest, const short *src, unsigned len)
+{
+ unsigned i;
+ unsigned num = len >> 1;
+ char *dest_byte = (char *)dest;
+ const char *src_byte = (const char *)src;
+
+ if (dest_byte < src_byte || dest_byte > src_byte+len)
+ {
+ for (i = 0; i < num; i++)
+ dest[i] = src[i];
+
+ if ((len & 1) != 0)
+ dest_byte[len-1] = src_byte[len-1];
+ }
+ else
+ {
+ while (len-- > 0)
+ dest_byte[len] = src_byte[len];
+ }
+}