1 //===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "../assembly.h"
13 // extern float __negsf2vfp(float a);
15 // Returns the negation of a single precision floating point numbers using the
16 // Darwin calling convention where single arguments are passsed like 32-bit ints
20 DEFINE_COMPILERRT_FUNCTION(__negsf2vfp)
21 #if defined(COMPILER_RT_ARMHF_TARGET)
24 eor r0, r0, #-2147483648 // flip sign bit on float in r0
27 END_COMPILERRT_FUNCTION(__negsf2vfp)
29 NO_EXEC_STACK_DIRECTIVE