34 lines · plain
1//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//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 double __negdf2vfp(double a, double b);13//14// Returns the negation a double precision floating point numbers using the15// Darwin calling convention where double arguments are passsed in GPR pairs.16//17 .syntax unified18 .p2align 219DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)20#if defined(COMPILER_RT_ARMHF_TARGET)21 vneg.f64 d0, d022#else23#if _YUGA_BIG_ENDIAN24 eor r0, r0, #0x80000000 // flip sign bit on double in r0/r1 pair25#else26 eor r1, r1, #0x80000000 // flip sign bit on double in r0/r1 pair27#endif28#endif29 bx lr30END_COMPILERRT_FUNCTION(__negdf2vfp)31 32NO_EXEC_STACK_DIRECTIVE33 34