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1//===-- powixf2.cpp - Implement __powixf2 ---------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements __powixf2 for the compiler_rt library.10//11//===----------------------------------------------------------------------===//12 13#if !_ARCH_PPC14 15#include "int_lib.h"16 17// Returns: a ^ b18 19COMPILER_RT_ABI xf_float __powixf2(xf_float a, int b) {20 const int recip = b < 0;21 xf_float r = 1;22 while (1) {23 if (b & 1)24 r *= a;25 b /= 2;26 if (b == 0)27 break;28 a *= a;29 }30 return recip ? 1 / r : r;31}32 33#endif34