Dimitry Andric f4341a5a66 Update compiler-rt to trunk r224034. This brings a number of new
builtins, and also the various sanitizers.  Support for these will be
added in a later commit.
2015-01-08 19:47:10 +00:00

24 lines
762 B
ArmAsm

//===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../assembly.h"
//
// extern float __negsf2vfp(float a);
//
// Returns the negation of a single precision floating point numbers using the
// Darwin calling convention where single arguments are passsed like 32-bit ints
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__negsf2vfp)
eor r0, r0, #-2147483648 // flip sign bit on float in r0
bx lr
END_COMPILERRT_FUNCTION(__negsf2vfp)