blob: e5d77823687908bd878667d25b61ab8062136345 (
plain)
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
33
34
35
|
//===-- fixunssfsivfp.S - Implement fixunssfsivfp -------------------------===//
//
// 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 unsigned int __fixunssfsivfp(float a);
//
// Converts single precision float to a 32-bit unsigned int rounding towards
// zero. All negative values become zero.
// Uses Darwin calling convention where a single precision parameter is
// passed in a GPR..
//
.syntax unified
.p2align 2
DEFINE_COMPILERRT_FUNCTION(__fixunssfsivfp)
#if defined(COMPILER_RT_ARMHF_TARGET)
vcvt.u32.f32 s0, s0
vmov r0, s0
#else
vmov s15, r0 // load float register from R0
vcvt.u32.f32 s15, s15 // convert single to 32-bit unsigned into s15
vmov r0, s15 // move s15 to result register
#endif
bx lr
END_COMPILERRT_FUNCTION(__fixunssfsivfp)
NO_EXEC_STACK_DIRECTIVE
|
