[rustc.git] / src / compiler-rt / lib / builtins / arm / divdf3vfp.S

//===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===//
//
//                     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 __divdf3vfp(double a, double b);
//
// Divides two 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(__divdf3vfp)
	vmov	d6, r0, r1		// move first param from r0/r1 pair into d6
	vmov	d7, r2, r3		// move second param from r2/r3 pair into d7
	vdiv.f64 d5, d6, d7		
	vmov	r0, r1, d5		// move result back to r0/r1 pair
	bx	lr
END_COMPILERRT_FUNCTION(__divdf3vfp)
Commit	Line	Data
1a4d82fc JJ	1	//===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===//
	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 __divdf3vfp(double a, double b);
	14	//
	15	// Divides two double precision floating point numbers using the Darwin
	16	// calling convention where double arguments are passsed in GPR pairs
	17	//
	18	.syntax unified
92a42be0	19	.p2align 2
1a4d82fc JJ	20	DEFINE_COMPILERRT_FUNCTION(__divdf3vfp)
	21	vmov d6, r0, r1 // move first param from r0/r1 pair into d6
	22	vmov d7, r2, r3 // move second param from r2/r3 pair into d7
	23	vdiv.f64 d5, d6, d7
	24	vmov r0, r1, d5 // move result back to r0/r1 pair
	25	bx lr
	26	END_COMPILERRT_FUNCTION(__divdf3vfp)