compiler-rt/test/builtins/Unit/arm/call_apsr.h

   1 //===-- call_apsr.h - Helpers for ARM EABI floating point tests -----------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file declares helpers for ARM EABI floating point tests for the
  10 // compiler_rt library.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef CALL_APSR_H
  15 #define CALL_APSR_H
  16
  17 #if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
  18 #error big endian support not implemented
  19 #endif
  20
  21 union cpsr {
  22     struct {
  23         uint32_t filler: 28;
  24         uint32_t v: 1;
  25         uint32_t c: 1;
  26         uint32_t z: 1;
  27         uint32_t n: 1;
  28     } flags;
  29     uint32_t value;
  30 };
  31
  32 extern __attribute__((pcs("aapcs")))
  33 uint32_t call_apsr_f(float a, float b, __attribute__((pcs("aapcs"))) void (*fn)(float, float));
  34
  35 extern __attribute__((pcs("aapcs")))
  36 uint32_t call_apsr_d(double a, double b, __attribute__((pcs("aapcs"))) void (*fn)(double, double));
  37
  38 #endif // CALL_APSR_H