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-rw-r--r--sysdeps/wordsize-32/cmpdi2.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/sysdeps/wordsize-32/cmpdi2.c b/sysdeps/wordsize-32/cmpdi2.c
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+++ b/sysdeps/wordsize-32/cmpdi2.c
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+/* 64-bit integer comparison.
+ Copyright (C) 1989, 1992-2001, 2002 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 <endian.h>
+#include <stdlib.h>
+#include <bits/wordsize.h>
+#include <shlib-compat.h>
+
+#if __WORDSIZE != 32
+# error This is for 32-bit targets only
+#endif
+
+#if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_2_6)
+
+typedef unsigned int UQItype __attribute__ ((mode (QI)));
+typedef int SItype __attribute__ ((mode (SI)));
+typedef unsigned int USItype __attribute__ ((mode (SI)));
+typedef int DItype __attribute__ ((mode (DI)));
+typedef unsigned int UDItype __attribute__ ((mode (DI)));
+#define Wtype SItype
+#define HWtype SItype
+#define DWtype DItype
+#define UWtype USItype
+#define UHWtype USItype
+#define UDWtype UDItype
+#define W_TYPE_SIZE 32
+
+#include <stdlib/longlong.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+struct DWstruct { Wtype high, low;};
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+struct DWstruct { Wtype low, high;};
+#else
+#error Unhandled endianity
+#endif
+typedef union { struct DWstruct s; DWtype ll; } DWunion;
+
+
+Wtype
+___cmpdi2 (DWtype a, DWtype b)
+{
+ DWunion au, bu;
+
+ au.ll = a, bu.ll = b;
+
+ if (au.s.high < bu.s.high)
+ return 0;
+ else if (au.s.high > bu.s.high)
+ return 2;
+ if ((UWtype) au.s.low < (UWtype) bu.s.low)
+ return 0;
+ else if ((UWtype) au.s.low > (UWtype) bu.s.low)
+ return 2;
+ return 1;
+}
+symbol_version (___cmpdi2, __cmpdi2, GLIBC_2.0);
+
+
+Wtype
+___ucmpdi2 (DWtype a, DWtype b)
+{
+ DWunion au, bu;
+
+ au.ll = a, bu.ll = b;
+
+ if ((UWtype) au.s.high < (UWtype) bu.s.high)
+ return 0;
+ else if ((UWtype) au.s.high > (UWtype) bu.s.high)
+ return 2;
+ if ((UWtype) au.s.low < (UWtype) bu.s.low)
+ return 0;
+ else if ((UWtype) au.s.low > (UWtype) bu.s.low)
+ return 2;
+ return 1;
+}
+symbol_version (___ucmpdi2, __ucmpdi2, GLIBC_2.0);
+
+#endif