tests: Add unit tests for mulu64 and muls64 (f4c0f986) · Commits · SUMMER2020 / students / proj-2021291

tests/Makefile

+5 −1

Original line number	Diff line number	Diff line
		@@ -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

tests/test-mul64.c

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		/*
		* 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();
		}