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Diffstat (limited to 'compiler-rt/lib/builtins/ucmpti2.c')
-rw-r--r-- | compiler-rt/lib/builtins/ucmpti2.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/compiler-rt/lib/builtins/ucmpti2.c b/compiler-rt/lib/builtins/ucmpti2.c new file mode 100644 index 000000000000..4eb6655b05af --- /dev/null +++ b/compiler-rt/lib/builtins/ucmpti2.c @@ -0,0 +1,37 @@ +//===-- ucmpti2.c - Implement __ucmpti2 -----------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file implements __ucmpti2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" + +#ifdef CRT_HAS_128BIT + +// Returns: if (a < b) returns 0 +// if (a == b) returns 1 +// if (a > b) returns 2 + +COMPILER_RT_ABI si_int __ucmpti2(tu_int a, tu_int b) { + utwords x; + x.all = a; + utwords y; + y.all = b; + if (x.s.high < y.s.high) + return 0; + if (x.s.high > y.s.high) + return 2; + if (x.s.low < y.s.low) + return 0; + if (x.s.low > y.s.low) + return 2; + return 1; +} + +#endif // CRT_HAS_128BIT |