1a47a12beSStefan Roese /* 2a47a12beSStefan Roese * Copyright (C) 2007 3a47a12beSStefan Roese * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4a47a12beSStefan Roese * 5*1a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+ 6a47a12beSStefan Roese */ 7a47a12beSStefan Roese /* 8a47a12beSStefan Roese * This file is originally a part of the GCC testsuite. 9a47a12beSStefan Roese */ 10a47a12beSStefan Roese 11a47a12beSStefan Roese #include <common.h> 12a47a12beSStefan Roese 13a47a12beSStefan Roese #include <post.h> 14a47a12beSStefan Roese 15a47a12beSStefan Roese GNU_FPOST_ATTR 16a47a12beSStefan Roese 17e009cdebSKumar Gala #if CONFIG_POST & CONFIG_SYS_POST_FPU 18e009cdebSKumar Gala fpu_post_test_math4(void)19a47a12beSStefan Roeseint fpu_post_test_math4 (void) 20a47a12beSStefan Roese { 21a47a12beSStefan Roese volatile float reale = 1.0f; 22a47a12beSStefan Roese volatile float oneplus; 23a47a12beSStefan Roese int i; 24a47a12beSStefan Roese 25a47a12beSStefan Roese if (sizeof (float) != 4) 26a47a12beSStefan Roese return 0; 27a47a12beSStefan Roese 28a47a12beSStefan Roese for (i = 0; ; i++) 29a47a12beSStefan Roese { 30a47a12beSStefan Roese oneplus = 1.0f + reale; 31a47a12beSStefan Roese if (oneplus == 1.0f) 32a47a12beSStefan Roese break; 33a47a12beSStefan Roese reale = reale / 2.0f; 34a47a12beSStefan Roese } 35a47a12beSStefan Roese /* Assumes ieee754 accurate arithmetic above. */ 36a47a12beSStefan Roese if (i != 24) { 37a47a12beSStefan Roese post_log ("Error in FPU math4 test\n"); 38a47a12beSStefan Roese return -1; 39a47a12beSStefan Roese } 40a47a12beSStefan Roese return 0; 41a47a12beSStefan Roese } 42a47a12beSStefan Roese 43a47a12beSStefan Roese #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ 44