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tests: Add unit tests for mulu64 and muls64 

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2013-02-16 12:47:01 -08:00 committed by Blue Swirl
parent ff7a1eb0a1
commit f4c0f986c0
2 changed files with 75 additions and 1 deletions
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6
tests/Makefile
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@ -54,6 +54,8 @@ check-unit-y += tests/test-xbzrle$(EXESUF)
gcov-files-test-xbzrle-y = xbzrle.c
check-unit-y += tests/test-cutils$(EXESUF)
gcov-files-test-cutils-y += util/cutils.c
check-unit-y += tests/test-mul64$(EXESUF)
gcov-files-test-mul64-y = util/host-utils.c
check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
@ -82,7 +84,7 @@ test-obj-y = tests/check-qint.o tests/check-qstring.o tests/check-qdict.o \
tests/test-string-input-visitor.o tests/test-qmp-output-visitor.o \
tests/test-qmp-input-visitor.o tests/test-qmp-input-strict.o \
tests/test-qmp-commands.o tests/test-visitor-serialization.o \
tests/test-x86-cpuid.o
tests/test-x86-cpuid.o tests/test-mul64.o
test-qapi-obj-y = tests/test-qapi-visit.o tests/test-qapi-types.o
@ -124,6 +126,8 @@ tests/test-qmp-input-strict$(EXESUF): tests/test-qmp-input-strict.o $(test-qapi-
tests/test-qmp-commands$(EXESUF): tests/test-qmp-commands.o tests/test-qmp-marshal.o $(test-qapi-obj-y) qapi-types.o qapi-visit.o libqemuutil.a libqemustub.a
tests/test-visitor-serialization$(EXESUF): tests/test-visitor-serialization.o $(test-qapi-obj-y) libqemuutil.a libqemustub.a
tests/test-mul64$(EXESUF): tests/test-mul64.o libqemuutil.a
tests/rtc-test$(EXESUF): tests/rtc-test.o
tests/m48t59-test$(EXESUF): tests/m48t59-test.o
tests/fdc-test$(EXESUF): tests/fdc-test.o

70
tests/test-mul64.c Normal file
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@ -0,0 +1,70 @@
/*
* Test 64x64 -> 128 multiply subroutines
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include <glib.h>
#include <stdint.h>
#include "qemu/host-utils.h"
#include "qemu/osdep.h"
typedef struct {
uint64_t a, b;
uint64_t rh, rl;
} Test;
static const Test test_u_data[] = {
{ 1, 1, 0, 1 },
{ 10000, 10000, 0, 100000000 },
{ 0xffffffffffffffffULL, 2, 1, 0xfffffffffffffffeULL },
{ 0xffffffffffffffffULL, 0xffffffffffffffffULL,
0xfffffffffffffffeULL, 0x0000000000000001ULL },
{ 0x1122334455667788ull, 0x8877665544332211ull,
0x092228fb777ae38full, 0x0a3e963337c60008ull },
};
static const Test test_s_data[] = {
{ 1, 1, 0, 1 },
{ 1, -1, -1, -1 },
{ -10, -10, 0, 100 },
{ 10000, 10000, 0, 100000000 },
{ -1, 2, -1, -2 },
{ 0x1122334455667788ULL, 0x1122334455667788ULL,
0x01258f60bbc2975cULL, 0x1eace4a3c82fb840ULL },
};
static void test_u(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(test_u_data); ++i) {
uint64_t rl, rh;
mulu64(&rl, &rh, test_u_data[i].a, test_u_data[i].b);
g_assert_cmpuint(rl, ==, test_u_data[i].rl);
g_assert_cmpuint(rh, ==, test_u_data[i].rh);
}
}
static void test_s(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(test_s_data); ++i) {
uint64_t rl, rh;
muls64(&rl, &rh, test_s_data[i].a, test_s_data[i].b);
g_assert_cmpuint(rl, ==, test_s_data[i].rl);
g_assert_cmpint(rh, ==, test_s_data[i].rh);
}
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/host-utils/mulu64", test_u);
g_test_add_func("/host-utils/muls64", test_s);
return g_test_run();
}