1//===-- nesf2vfp.S - Implement nesf2vfp -----------------------------------===// 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-exception 6// 7//===----------------------------------------------------------------------===// 8 9#include "../assembly.h" 10 11// 12// extern int __nesf2vfp(float a, float b); 13// 14// Returns one iff a != b and neither is NaN. 15// Uses Darwin calling convention where single precision arguments are passsed 16// like 32-bit ints 17// 18 .syntax unified 19 .p2align 2 20DEFINE_COMPILERRT_FUNCTION(__nesf2vfp) 21#if defined(COMPILER_RT_ARMHF_TARGET) 22 vcmp.f32 s0, s1 23#else 24 vmov s14, r0 // move from GPR 0 to float register 25 vmov s15, r1 // move from GPR 1 to float register 26 vcmp.f32 s14, s15 27#endif 28 vmrs apsr_nzcv, fpscr 29 ITE(ne) 30 movne r0, #1 // set result register to 1 if unequal 31 moveq r0, #0 32 bx lr 33END_COMPILERRT_FUNCTION(__nesf2vfp) 34 35NO_EXEC_STACK_DIRECTIVE 36 37