negsf2vfp.S revision 1.1.1.2.2.2 1 //===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===//
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 __negsf2vfp(float a);
14 //
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
17 //
18 .syntax unified
19 .p2align 2
20 DEFINE_COMPILERRT_FUNCTION(__negsf2vfp)
21 eor r0, r0, #-2147483648 // flip sign bit on float in r0
22 bx lr
23 END_COMPILERRT_FUNCTION(__negsf2vfp)
24