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Diffstat (limited to 'lib/cmpdi2.c')
-rw-r--r-- | lib/cmpdi2.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/cmpdi2.c b/lib/cmpdi2.c new file mode 100644 index 000000000..f398ea257 --- /dev/null +++ b/lib/cmpdi2.c @@ -0,0 +1,36 @@ +//===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements __cmpdi2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" + +// Returns: if (a < b) returns 0 +// if (a == b) returns 1 +// if (a > b) returns 2 + +si_int +__cmpdi2(di_int a, di_int b) +{ + dwords x; + x.all = a; + dwords y; + y.all = b; + if (x.high < y.high) + return 0; + if (x.high > y.high) + return 2; + if (x.low < y.low) + return 0; + if (x.low > y.low) + return 2; + return 1; +} |