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1//===-- nedf2vfp.S - Implement nedf2vfp -----------------------------------===//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#include "../assembly.h"10 11// extern double __nedf2vfp(double a, double b);12//13// Returns zero if a and b are unequal and neither is NaN.14// Uses Darwin calling convention where double precision arguments are passsed15// like in GPR pairs.16 17 .syntax unified18 .p2align 219DEFINE_COMPILERRT_FUNCTION(__nedf2vfp)20#if defined(COMPILER_RT_ARMHF_TARGET)21 vcmp.f64 d0, d122#else23 VMOV_TO_DOUBLE(d6, r0, r1) // load r0/r1 pair in double register24 VMOV_TO_DOUBLE(d7, r2, r3) // load r2/r3 pair in double register25 vcmp.f64 d6, d726#endif27 vmrs apsr_nzcv, fpscr28 ITE(ne)29 movne r0, #1 // set result register to 0 if unequal30 moveq r0, #031 bx lr32END_COMPILERRT_FUNCTION(__nedf2vfp)33 34NO_EXEC_STACK_DIRECTIVE35 36