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1//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//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//12// extern float __subsf3vfp(float a, float b);13//14// Returns the difference between two single precision floating point numbers15// using the Darwin calling convention where single arguments are passsed16// like 32-bit ints.17//18 .syntax unified19 .p2align 220DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)21#if defined(COMPILER_RT_ARMHF_TARGET)22 vsub.f32 s0, s0, s123#else24 vmov s14, r0 // move first param from r0 into float register25 vmov s15, r1 // move second param from r1 into float register26 vsub.f32 s14, s14, s1527 vmov r0, s14 // move result back to r028#endif29 bx lr30END_COMPILERRT_FUNCTION(__subsf3vfp)31 32NO_EXEC_STACK_DIRECTIVE33 34