hanchenye-llvm-project/compiler-rt/lib/arm/bswapsi2.S

20 lines
583 B
ArmAsm

//===------- bswapsi2 - Implement bswapsi2 ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
//
// extern uint32_t __bswapsi2(uint32_t);
//
// Reverse all the bytes in a 32-bit integer.
//
DEFINE_COMPILERRT_FUNCTION(__bswapsi2)
rev r0, r0 // reverse bytes in parameter and put into result register
bx lr