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![Kumar Gala](/assets/img/avatar_default.png)
If we built POST on PPC's that didn't enable CONFIG_SYS_POST_FPU we'd
get the following warning with newer toolchains:
powerpc-linux-gnu-ld: Warning: lib_powerpc/fpu/libpostpowerpcfpu.o
uses hard float, libpost.o uses soft float
We actually worked around this sometime ago with the following commit:
commit ce82ff0538
Author: Yuri Tikhonov <yur@emcraft.com>
Date: Sat Dec 20 14:54:21 2008 +0300
FPU POST: fix warnings when building with 2.18 binutils
However, this only took into effect if CONFIG_SYS_POST_FPU was enabled.
We can simply move the GNU_FPOST_ATTR out of the CONFIG_SYS_POST_FPU
ifdef block to address the issue.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
225 lines
5.1 KiB
C
225 lines
5.1 KiB
C
/*
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* Copyright (C) 2007
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Test for correctness of composite floating-point comparisons.
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* Written by Paolo Bonzini, 26th May 2004.
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* This file is originally a part of the GCC testsuite.
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*/
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#include <common.h>
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#include <post.h>
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GNU_FPOST_ATTR
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#if CONFIG_POST & CONFIG_SYS_POST_FPU
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static int failed;
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#define TEST(c) if ((c) != ok) failed++
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#define ORD(a, b) (!__builtin_isunordered ((a), (b)))
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#define UNORD(a, b) (__builtin_isunordered ((a), (b)))
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#define UNEQ(a, b) (__builtin_isunordered ((a), (b)) || ((a) == (b)))
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#define UNLT(a, b) (__builtin_isunordered ((a), (b)) || ((a) < (b)))
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#define UNLE(a, b) (__builtin_isunordered ((a), (b)) || ((a) <= (b)))
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#define UNGT(a, b) (__builtin_isunordered ((a), (b)) || ((a) > (b)))
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#define UNGE(a, b) (__builtin_isunordered ((a), (b)) || ((a) >= (b)))
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#define LTGT(a, b) (__builtin_islessgreater ((a), (b)))
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static float pinf;
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static float ninf;
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static float NaN;
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static void iuneq (float x, float y, int ok)
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{
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TEST (UNEQ (x, y));
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TEST (!LTGT (x, y));
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TEST (UNLE (x, y) && UNGE (x,y));
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}
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static void ieq (float x, float y, int ok)
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{
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TEST (ORD (x, y) && UNEQ (x, y));
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}
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static void iltgt (float x, float y, int ok)
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{
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TEST (!UNEQ (x, y)); /* Not optimizable. */
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TEST (LTGT (x, y)); /* Same, __builtin_islessgreater does not trap. */
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TEST (ORD (x, y) && (UNLT (x, y) || UNGT (x,y)));
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}
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static void ine (float x, float y, int ok)
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{
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TEST (UNLT (x, y) || UNGT (x, y));
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}
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static void iunlt (float x, float y, int ok)
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{
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TEST (UNLT (x, y));
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TEST (UNORD (x, y) || (x < y));
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}
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static void ilt (float x, float y, int ok)
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{
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TEST (ORD (x, y) && UNLT (x, y)); /* Not optimized */
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TEST ((x <= y) && (x != y));
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TEST ((x <= y) && (y != x));
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TEST ((x != y) && (x <= y)); /* Not optimized */
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TEST ((y != x) && (x <= y)); /* Not optimized */
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}
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static void iunle (float x, float y, int ok)
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{
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TEST (UNLE (x, y));
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TEST (UNORD (x, y) || (x <= y));
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}
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static void ile (float x, float y, int ok)
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{
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TEST (ORD (x, y) && UNLE (x, y)); /* Not optimized */
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TEST ((x < y) || (x == y));
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TEST ((y > x) || (x == y));
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TEST ((x == y) || (x < y)); /* Not optimized */
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TEST ((y == x) || (x < y)); /* Not optimized */
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}
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static void iungt (float x, float y, int ok)
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{
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TEST (UNGT (x, y));
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TEST (UNORD (x, y) || (x > y));
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}
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static void igt (float x, float y, int ok)
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{
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TEST (ORD (x, y) && UNGT (x, y)); /* Not optimized */
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TEST ((x >= y) && (x != y));
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TEST ((x >= y) && (y != x));
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TEST ((x != y) && (x >= y)); /* Not optimized */
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TEST ((y != x) && (x >= y)); /* Not optimized */
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}
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static void iunge (float x, float y, int ok)
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{
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TEST (UNGE (x, y));
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TEST (UNORD (x, y) || (x >= y));
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}
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static void ige (float x, float y, int ok)
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{
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TEST (ORD (x, y) && UNGE (x, y)); /* Not optimized */
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TEST ((x > y) || (x == y));
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TEST ((y < x) || (x == y));
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TEST ((x == y) || (x > y)); /* Not optimized */
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TEST ((y == x) || (x > y)); /* Not optimized */
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}
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int fpu_post_test_math6 (void)
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{
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pinf = __builtin_inf ();
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ninf = -__builtin_inf ();
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NaN = __builtin_nan ("");
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iuneq (ninf, pinf, 0);
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iuneq (NaN, NaN, 1);
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iuneq (pinf, ninf, 0);
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iuneq (1, 4, 0);
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iuneq (3, 3, 1);
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iuneq (5, 2, 0);
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ieq (1, 4, 0);
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ieq (3, 3, 1);
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ieq (5, 2, 0);
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iltgt (ninf, pinf, 1);
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iltgt (NaN, NaN, 0);
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iltgt (pinf, ninf, 1);
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iltgt (1, 4, 1);
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iltgt (3, 3, 0);
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iltgt (5, 2, 1);
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ine (1, 4, 1);
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ine (3, 3, 0);
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ine (5, 2, 1);
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iunlt (NaN, ninf, 1);
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iunlt (pinf, NaN, 1);
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iunlt (pinf, ninf, 0);
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iunlt (pinf, pinf, 0);
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iunlt (ninf, ninf, 0);
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iunlt (1, 4, 1);
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iunlt (3, 3, 0);
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iunlt (5, 2, 0);
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ilt (1, 4, 1);
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ilt (3, 3, 0);
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ilt (5, 2, 0);
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iunle (NaN, ninf, 1);
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iunle (pinf, NaN, 1);
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iunle (pinf, ninf, 0);
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iunle (pinf, pinf, 1);
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iunle (ninf, ninf, 1);
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iunle (1, 4, 1);
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iunle (3, 3, 1);
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iunle (5, 2, 0);
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ile (1, 4, 1);
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ile (3, 3, 1);
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ile (5, 2, 0);
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iungt (NaN, ninf, 1);
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iungt (pinf, NaN, 1);
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iungt (pinf, ninf, 1);
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iungt (pinf, pinf, 0);
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iungt (ninf, ninf, 0);
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iungt (1, 4, 0);
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iungt (3, 3, 0);
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iungt (5, 2, 1);
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igt (1, 4, 0);
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igt (3, 3, 0);
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igt (5, 2, 1);
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iunge (NaN, ninf, 1);
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iunge (pinf, NaN, 1);
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iunge (ninf, pinf, 0);
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iunge (pinf, pinf, 1);
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iunge (ninf, ninf, 1);
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iunge (1, 4, 0);
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iunge (3, 3, 1);
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iunge (5, 2, 1);
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ige (1, 4, 0);
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ige (3, 3, 1);
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ige (5, 2, 1);
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if (failed) {
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post_log ("Error in FPU math6 test\n");
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return -1;
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}
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return 0;
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}
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#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
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