mirror of
https://github.com/Gericom/teak-llvm.git
synced 2025-06-19 03:25:54 -04:00
0ba22f51d1
Use the uniform single line C++/99 style for code comments. This is part of the cleanup proposed in "[RFC] compiler-rt builtins cleanup and refactoring". Differential Revision: https://reviews.llvm.org/D60352 llvm-svn: 359411
30 lines
864 B
C
30 lines
864 B
C
//===-- absvti2.c - Implement __absvdi2 -----------------------------------===//
|
|
//
|
|
// 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 __absvti2 for the compiler_rt library.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "int_lib.h"
|
|
|
|
#ifdef CRT_HAS_128BIT
|
|
|
|
// Returns: absolute value
|
|
|
|
// Effects: aborts if abs(x) < 0
|
|
|
|
COMPILER_RT_ABI ti_int __absvti2(ti_int a) {
|
|
const int N = (int)(sizeof(ti_int) * CHAR_BIT);
|
|
if (a == ((ti_int)1 << (N - 1)))
|
|
compilerrt_abort();
|
|
const ti_int s = a >> (N - 1);
|
|
return (a ^ s) - s;
|
|
}
|
|
|
|
#endif // CRT_HAS_128BIT
|