[rustc.git] / src / compiler-rt / lib / builtins / arm / negsf2vfp.S

//===-- 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)
Commit	Line	Data
1a4d82fc JJ	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
92a42be0	19	.p2align 2
1a4d82fc JJ	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)