[rustc.git] / src / compiler-rt / lib / builtins / arm / negdf2vfp.S

//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
//
//                     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 double __negdf2vfp(double a, double b);
//
// Returns the negation a double precision floating point numbers using the 
// Darwin calling convention where double arguments are passsed in GPR pairs.
//
	.syntax unified
	.p2align 2
DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
	eor	r1, r1, #-2147483648	// flip sign bit on double in r0/r1 pair
	bx	lr
END_COMPILERRT_FUNCTION(__negdf2vfp)
Commit	Line	Data
1a4d82fc JJ	1	//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
	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 double __negdf2vfp(double a, double b);
	14	//
	15	// Returns the negation a double precision floating point numbers using the
	16	// Darwin calling convention where double arguments are passsed in GPR pairs.
	17	//
	18	.syntax unified
92a42be0	19	.p2align 2
1a4d82fc JJ	20	DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
	21	eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
	22	bx lr
	23	END_COMPILERRT_FUNCTION(__negdf2vfp)