1 //===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
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
7 //===----------------------------------------------------------------------===//
9 #include "../assembly.h"
12 // extern double __negdf2vfp(double a, double b);
14 // Returns the negation a double precision floating point numbers using the
15 // Darwin calling convention where double arguments are passsed in GPR pairs.
19 DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
20 #if defined(COMPILER_RT_ARMHF_TARGET)
23 eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
26 END_COMPILERRT_FUNCTION(__negdf2vfp)
28 NO_EXEC_STACK_DIRECTIVE