diff options
Diffstat (limited to 'cpukit/compiler-rt/lib/builtins/bswapsi2.c')
-rw-r--r-- | cpukit/compiler-rt/lib/builtins/bswapsi2.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/cpukit/compiler-rt/lib/builtins/bswapsi2.c b/cpukit/compiler-rt/lib/builtins/bswapsi2.c new file mode 100644 index 0000000000..ec566d61a2 --- /dev/null +++ b/cpukit/compiler-rt/lib/builtins/bswapsi2.c @@ -0,0 +1,20 @@ +//===-- bswapsi2.c - Implement __bswapsi2 ---------------------------------===// +// +// 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 __bswapsi2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" + +COMPILER_RT_ABI uint32_t __bswapsi2(uint32_t u) { + return ((((u)&0xff000000) >> 24) | + (((u)&0x00ff0000) >> 8) | + (((u)&0x0000ff00) << 8) | + (((u)&0x000000ff) << 24)); +} |