blob: 554d3e467512305f3018bb0df99a0caf73a5ea02 (
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
26
27
28
29
30
31
32
|
//===-- nesf2vfp.S - Implement nesf2vfp -----------------------------------===//
//
// 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 __nesf2vfp(float a, float b);
//
// Returns one iff a != b and neither is NaN.
// Uses Darwin calling convention where single precision arguments are passsed
// like 32-bit ints
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__nesf2vfp)
vmov s14, r0 // move from GPR 0 to float register
vmov s15, r1 // move from GPR 1 to float register
vcmp.f32 s14, s15
vmrs apsr_nzcv, fpscr
movne r0, #1 // set result register to 1 if unequal
moveq r0, #0
bx lr
END_COMPILERRT_FUNCTION(__nesf2vfp)
NO_EXEC_STACK_DIRECTIVE
|
