1 //todo check license
2 //===-- call_apsr.h - Helpers for ARM EABI floating point tests -----------===//
3 //
4 //                     The LLVM Compiler Infrastructure
5 //
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
8 //
9 //===----------------------------------------------------------------------===//
10 //
11 // This file declares helpers for ARM EABI floating point tests for the
12 // compiler_rt library.
13 //
14 //===----------------------------------------------------------------------===//
15 
16 #ifndef CALL_APSR_H
17 #define CALL_APSR_H
18 
19 #if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
20 #error big endian support not implemented
21 #endif
22 
23 union cpsr {
24     struct {
25         uint32_t filler: 28;
26         uint32_t v: 1;
27         uint32_t c: 1;
28         uint32_t z: 1;
29         uint32_t n: 1;
30     } flags;
31     uint32_t value;
32 };
33 
34 extern __attribute__((pcs("aapcs")))
35 uint32_t call_apsr_f(float a, float b, __attribute__((pcs("aapcs"))) void (*fn)(float, float));
36 
37 extern __attribute__((pcs("aapcs")))
38 uint32_t call_apsr_d(double a, double b, __attribute__((pcs("aapcs"))) void (*fn)(double, double));
39 
40 #endif // CALL_APSR_H
41