Merged POST framework with the current TOT.
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
diff --git a/post/lib_ppc/fpu/20001122-1.c b/post/lib_ppc/fpu/20001122-1.c
new file mode 100644
index 0000000..f689b82
--- /dev/null
+++ b/post/lib_ppc/fpu/20001122-1.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+int fpu_post_test_math1 (void)
+{
+ volatile double a, *p;
+ double c, d;
+ volatile double b;
+
+ d = 1.0;
+ p = &b;
+
+ do
+ {
+ c = d;
+ d = c * 0.5;
+ b = 1 + d;
+ } while (b != 1.0);
+
+ a = 1.0 + c;
+
+ if (a == 1.0) {
+ post_log ("Error in FPU math1 test\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/20010114-2.c b/post/lib_ppc/fpu/20010114-2.c
new file mode 100644
index 0000000..6e60507
--- /dev/null
+++ b/post/lib_ppc/fpu/20010114-2.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+static float rintf (float x)
+{
+ volatile float TWO23 = 8388608.0;
+
+ if (__builtin_fabs (x) < TWO23)
+ {
+ if (x > 0.0)
+ {
+ x += TWO23;
+ x -= TWO23;
+ }
+ else if (x < 0.0)
+ {
+ x = TWO23 - x;
+ x = -(x - TWO23);
+ }
+ }
+
+ return x;
+}
+
+int fpu_post_test_math2 (void)
+{
+ if (rintf (-1.5) != -2.0) {
+ post_log ("Error in FPU math2 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/20010226-1.c b/post/lib_ppc/fpu/20010226-1.c
new file mode 100644
index 0000000..b2c47e3
--- /dev/null
+++ b/post/lib_ppc/fpu/20010226-1.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+int fpu_post_test_math3 (void)
+{
+ volatile long double dfrom = 1.1;
+ volatile long double m1;
+ volatile long double m2;
+ volatile unsigned long mant_long;
+
+ m1 = dfrom / 2.0;
+ m2 = m1 * 4294967296.0;
+ mant_long = ((unsigned long) m2) & 0xffffffff;
+
+ if (mant_long != 0x8ccccccc) {
+ post_log ("Error in FPU math3 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/980619-1.c b/post/lib_ppc/fpu/980619-1.c
new file mode 100644
index 0000000..990aa0c
--- /dev/null
+++ b/post/lib_ppc/fpu/980619-1.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+int fpu_post_test_math4 (void)
+{
+ volatile float reale = 1.0f;
+ volatile float oneplus;
+ int i;
+
+ if (sizeof (float) != 4)
+ return 0;
+
+ for (i = 0; ; i++)
+ {
+ oneplus = 1.0f + reale;
+ if (oneplus == 1.0f)
+ break;
+ reale = reale / 2.0f;
+ }
+ /* Assumes ieee754 accurate arithmetic above. */
+ if (i != 24) {
+ post_log ("Error in FPU math4 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/Makefile b/post/lib_ppc/fpu/Makefile
new file mode 100644
index 0000000..82646c8
--- /dev/null
+++ b/post/lib_ppc/fpu/Makefile
@@ -0,0 +1,32 @@
+#
+# (C) Copyright 2007
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+
+LIB = libpostppcfpu.a
+
+COBJS += fpu.o 20001122-1.o 20010114-2.o 20010226-1.o 980619-1.o
+COBJS += acc1.o compare-fp-1.o mul-subnormal-single-1.o
+
+include $(TOPDIR)/post/rules.mk
+
+CFLAGS += -mhard-float -fkeep-inline-functions
diff --git a/post/lib_ppc/fpu/acc1.c b/post/lib_ppc/fpu/acc1.c
new file mode 100644
index 0000000..4cecbf6
--- /dev/null
+++ b/post/lib_ppc/fpu/acc1.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+static double func (const double *array)
+{
+ double d = *array;
+
+ if (d == 0.0)
+ return d;
+ else
+ return d + func (array + 1);
+}
+
+int fpu_post_test_math5 (void)
+{
+ double values[] = { 0.1e-100, 1.0, -1.0, 0.0 };
+
+ if (func (values) != 0.1e-100) {
+ post_log ("Error in FPU math5 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/compare-fp-1.c b/post/lib_ppc/fpu/compare-fp-1.c
new file mode 100644
index 0000000..d866ad5
--- /dev/null
+++ b/post/lib_ppc/fpu/compare-fp-1.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * Test for correctness of composite floating-point comparisons.
+ * Written by Paolo Bonzini, 26th May 2004.
+ * This file is originally a part of the GCC testsuite.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+static int failed;
+
+#define TEST(c) if ((c) != ok) failed++
+#define ORD(a, b) (!__builtin_isunordered ((a), (b)))
+#define UNORD(a, b) (__builtin_isunordered ((a), (b)))
+#define UNEQ(a, b) (__builtin_isunordered ((a), (b)) || ((a) == (b)))
+#define UNLT(a, b) (__builtin_isunordered ((a), (b)) || ((a) < (b)))
+#define UNLE(a, b) (__builtin_isunordered ((a), (b)) || ((a) <= (b)))
+#define UNGT(a, b) (__builtin_isunordered ((a), (b)) || ((a) > (b)))
+#define UNGE(a, b) (__builtin_isunordered ((a), (b)) || ((a) >= (b)))
+#define LTGT(a, b) (__builtin_islessgreater ((a), (b)))
+
+static float pinf;
+static float ninf;
+static float NaN;
+
+static void iuneq (float x, float y, int ok)
+{
+ TEST (UNEQ (x, y));
+ TEST (!LTGT (x, y));
+ TEST (UNLE (x, y) && UNGE (x,y));
+}
+
+static void ieq (float x, float y, int ok)
+{
+ TEST (ORD (x, y) && UNEQ (x, y));
+}
+
+static void iltgt (float x, float y, int ok)
+{
+ TEST (!UNEQ (x, y)); /* Not optimizable. */
+ TEST (LTGT (x, y)); /* Same, __builtin_islessgreater does not trap. */
+ TEST (ORD (x, y) && (UNLT (x, y) || UNGT (x,y)));
+}
+
+static void ine (float x, float y, int ok)
+{
+ TEST (UNLT (x, y) || UNGT (x, y));
+}
+
+static void iunlt (float x, float y, int ok)
+{
+ TEST (UNLT (x, y));
+ TEST (UNORD (x, y) || (x < y));
+}
+
+static void ilt (float x, float y, int ok)
+{
+ TEST (ORD (x, y) && UNLT (x, y)); /* Not optimized */
+ TEST ((x <= y) && (x != y));
+ TEST ((x <= y) && (y != x));
+ TEST ((x != y) && (x <= y)); /* Not optimized */
+ TEST ((y != x) && (x <= y)); /* Not optimized */
+}
+
+static void iunle (float x, float y, int ok)
+{
+ TEST (UNLE (x, y));
+ TEST (UNORD (x, y) || (x <= y));
+}
+
+static void ile (float x, float y, int ok)
+{
+ TEST (ORD (x, y) && UNLE (x, y)); /* Not optimized */
+ TEST ((x < y) || (x == y));
+ TEST ((y > x) || (x == y));
+ TEST ((x == y) || (x < y)); /* Not optimized */
+ TEST ((y == x) || (x < y)); /* Not optimized */
+}
+
+static void iungt (float x, float y, int ok)
+{
+ TEST (UNGT (x, y));
+ TEST (UNORD (x, y) || (x > y));
+}
+
+static void igt (float x, float y, int ok)
+{
+ TEST (ORD (x, y) && UNGT (x, y)); /* Not optimized */
+ TEST ((x >= y) && (x != y));
+ TEST ((x >= y) && (y != x));
+ TEST ((x != y) && (x >= y)); /* Not optimized */
+ TEST ((y != x) && (x >= y)); /* Not optimized */
+}
+
+static void iunge (float x, float y, int ok)
+{
+ TEST (UNGE (x, y));
+ TEST (UNORD (x, y) || (x >= y));
+}
+
+static void ige (float x, float y, int ok)
+{
+ TEST (ORD (x, y) && UNGE (x, y)); /* Not optimized */
+ TEST ((x > y) || (x == y));
+ TEST ((y < x) || (x == y));
+ TEST ((x == y) || (x > y)); /* Not optimized */
+ TEST ((y == x) || (x > y)); /* Not optimized */
+}
+
+int fpu_post_test_math6 (void)
+{
+ pinf = __builtin_inf ();
+ ninf = -__builtin_inf ();
+ NaN = __builtin_nan ("");
+
+ iuneq (ninf, pinf, 0);
+ iuneq (NaN, NaN, 1);
+ iuneq (pinf, ninf, 0);
+ iuneq (1, 4, 0);
+ iuneq (3, 3, 1);
+ iuneq (5, 2, 0);
+
+ ieq (1, 4, 0);
+ ieq (3, 3, 1);
+ ieq (5, 2, 0);
+
+ iltgt (ninf, pinf, 1);
+ iltgt (NaN, NaN, 0);
+ iltgt (pinf, ninf, 1);
+ iltgt (1, 4, 1);
+ iltgt (3, 3, 0);
+ iltgt (5, 2, 1);
+
+ ine (1, 4, 1);
+ ine (3, 3, 0);
+ ine (5, 2, 1);
+
+ iunlt (NaN, ninf, 1);
+ iunlt (pinf, NaN, 1);
+ iunlt (pinf, ninf, 0);
+ iunlt (pinf, pinf, 0);
+ iunlt (ninf, ninf, 0);
+ iunlt (1, 4, 1);
+ iunlt (3, 3, 0);
+ iunlt (5, 2, 0);
+
+ ilt (1, 4, 1);
+ ilt (3, 3, 0);
+ ilt (5, 2, 0);
+
+ iunle (NaN, ninf, 1);
+ iunle (pinf, NaN, 1);
+ iunle (pinf, ninf, 0);
+ iunle (pinf, pinf, 1);
+ iunle (ninf, ninf, 1);
+ iunle (1, 4, 1);
+ iunle (3, 3, 1);
+ iunle (5, 2, 0);
+
+ ile (1, 4, 1);
+ ile (3, 3, 1);
+ ile (5, 2, 0);
+
+ iungt (NaN, ninf, 1);
+ iungt (pinf, NaN, 1);
+ iungt (pinf, ninf, 1);
+ iungt (pinf, pinf, 0);
+ iungt (ninf, ninf, 0);
+ iungt (1, 4, 0);
+ iungt (3, 3, 0);
+ iungt (5, 2, 1);
+
+ igt (1, 4, 0);
+ igt (3, 3, 0);
+ igt (5, 2, 1);
+
+ iunge (NaN, ninf, 1);
+ iunge (pinf, NaN, 1);
+ iunge (ninf, pinf, 0);
+ iunge (pinf, pinf, 1);
+ iunge (ninf, ninf, 1);
+ iunge (1, 4, 0);
+ iunge (3, 3, 1);
+ iunge (5, 2, 1);
+
+ ige (1, 4, 0);
+ ige (3, 3, 1);
+ ige (5, 2, 1);
+
+ if (failed) {
+ post_log ("Error in FPU math6 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/fpu.c b/post/lib_ppc/fpu/fpu.c
new file mode 100644
index 0000000..07dcba8
--- /dev/null
+++ b/post/lib_ppc/fpu/fpu.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Author: Sergei Poselenov <sposelenov@emcraft.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+/*
+ * FPU test
+ *
+ * This test checks the arithmetic logic unit (ALU) of CPU.
+ * It tests independently various groups of instructions using
+ * run-time modification of the code to reduce the memory footprint.
+ * For more details refer to post/cpu/ *.c files.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+#include <watchdog.h>
+
+extern int fpu_status (void);
+extern void fpu_enable (void);
+extern void fpu_disable (void);
+
+extern int fpu_post_test_math1 (void);
+extern int fpu_post_test_math2 (void);
+extern int fpu_post_test_math3 (void);
+extern int fpu_post_test_math4 (void);
+extern int fpu_post_test_math5 (void);
+extern int fpu_post_test_math6 (void);
+extern int fpu_post_test_math7 (void);
+
+int fpu_post_test (int flags)
+{
+ int fpu = fpu_status ();
+
+ int ret = 0;
+
+ WATCHDOG_RESET ();
+
+ if (!fpu)
+ fpu_enable ();
+
+ if (ret == 0)
+ ret = fpu_post_test_math1 ();
+ if (ret == 0)
+ ret = fpu_post_test_math2 ();
+ if (ret == 0)
+ ret = fpu_post_test_math3 ();
+ if (ret == 0)
+ ret = fpu_post_test_math4 ();
+ if (ret == 0)
+ ret = fpu_post_test_math5 ();
+ if (ret == 0)
+ ret = fpu_post_test_math6 ();
+ if (ret == 0)
+ ret = fpu_post_test_math7 ();
+
+ if (!fpu)
+ fpu_disable ();
+
+ WATCHDOG_RESET ();
+
+ return ret;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */
diff --git a/post/lib_ppc/fpu/mul-subnormal-single-1.c b/post/lib_ppc/fpu/mul-subnormal-single-1.c
new file mode 100644
index 0000000..67f48da
--- /dev/null
+++ b/post/lib_ppc/fpu/mul-subnormal-single-1.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+/*
+ * This file is originally a part of the GCC testsuite.
+ * Check that certain subnormal numbers (formerly known as denormalized
+ * numbers) are rounded to within 0.5 ulp. PR other/14354.
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+union uf
+{
+ unsigned int u;
+ float f;
+};
+
+static float
+u2f (unsigned int v)
+{
+ union uf u;
+ u.u = v;
+ return u.f;
+}
+
+static unsigned int
+f2u (float v)
+{
+ union uf u;
+ u.f = v;
+ return u.u;
+}
+
+static int ok = 1;
+
+static void
+tstmul (unsigned int ux, unsigned int uy, unsigned int ur)
+{
+ float x = u2f (ux);
+ float y = u2f (uy);
+
+ if (f2u (x * y) != ur)
+ /* Set a variable rather than aborting here, to simplify tracing when
+ several computations are wrong. */
+ ok = 0;
+}
+
+/* We don't want to make this const and static, or else we risk inlining
+ causing the test to fold as constants at compile-time. */
+struct
+{
+ unsigned int p1, p2, res;
+} static volatile expected[] =
+{
+ {0xfff, 0x3f800400, 0xfff},
+ {0xf, 0x3fc88888, 0x17},
+ {0xf, 0x3f844444, 0xf}
+};
+
+int fpu_post_test_math7 (void)
+{
+ unsigned int i;
+
+ for (i = 0; i < sizeof (expected) / sizeof (expected[0]); i++)
+ {
+ tstmul (expected[i].p1, expected[i].p2, expected[i].res);
+ tstmul (expected[i].p2, expected[i].p1, expected[i].res);
+ }
+
+ if (!ok) {
+ post_log ("Error in FPU math7 test\n");
+ return -1;
+ }
+ return 0;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */