1//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "../assembly.h" 11 12// 13// extern float __subsf3vfp(float a, float b); 14// 15// Returns the difference between two single precision floating point numbers 16// using the Darwin calling convention where single arguments are passsed 17// like 32-bit ints. 18// 19 .syntax unified 20 .p2align 2 21DEFINE_COMPILERRT_FUNCTION(__subsf3vfp) 22 vmov s14, r0 // move first param from r0 into float register 23 vmov s15, r1 // move second param from r1 into float register 24 vsub.f32 s14, s14, s15 25 vmov r0, s14 // move result back to r0 26 bx lr 27END_COMPILERRT_FUNCTION(__subsf3vfp) 28 29NO_EXEC_STACK_DIRECTIVE 30 31