blob: b7c3299d1c4d8c69164755ccbd832317206c159f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
//===-- fixdfsivfp.S - Implement fixdfsivfp -----------------------===//
//
// 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 int __fixdfsivfp(double a);
//
// Converts double precision float to a 32-bit int rounding towards zero.
// Uses Darwin calling convention where a double precision parameter is
// passed in GPR register pair.
//
.syntax unified
.align 2
DEFINE_COMPILERRT_FUNCTION(__fixdfsivfp)
vmov d7, r0, r1 // load double register from R0/R1
vcvt.s32.f64 s15, d7 // convert double to 32-bit int into s15
vmov r0, s15 // move s15 to result register
bx lr
|
