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-rw-r--r--qemu/tests/test-int128.c224
1 files changed, 0 insertions, 224 deletions
diff --git a/qemu/tests/test-int128.c b/qemu/tests/test-int128.c
deleted file mode 100644
index cacf6beac..000000000
--- a/qemu/tests/test-int128.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Test Int128 arithmetic
- *
- * 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 "qemu/osdep.h"
-#include <glib.h>
-#include "qemu/int128.h"
-
-/* clang doesn't support __noclone__ but it does have a mechanism for
- * telling us this. We assume that if we don't have __has_attribute()
- * then this is GCC and that GCC always supports __noclone__.
- */
-#if defined(__has_attribute)
-#if !__has_attribute(__noclone__)
-#define ATTRIBUTE_NOCLONE
-#endif
-#endif
-#ifndef ATTRIBUTE_NOCLONE
-#define ATTRIBUTE_NOCLONE __attribute__((__noclone__))
-#endif
-
-static uint32_t tests[8] = {
- 0x00000000, 0x00000001, 0x7FFFFFFE, 0x7FFFFFFF,
- 0x80000000, 0x80000001, 0xFFFFFFFE, 0xFFFFFFFF,
-};
-
-#define LOW 3ULL
-#define HIGH (1ULL << 63)
-#define MIDDLE (-1ULL & ~LOW & ~HIGH)
-
-static uint64_t expand16(unsigned x)
-{
- return (x & LOW) | ((x & 4) ? MIDDLE : 0) | (x & 0x8000 ? HIGH : 0);
-}
-
-static Int128 expand(uint32_t x)
-{
- uint64_t l, h;
- l = expand16(x & 65535);
- h = expand16(x >> 16);
- return (Int128) {l, h};
-};
-
-static void test_and(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- Int128 a = expand(tests[i]);
- Int128 b = expand(tests[j]);
- Int128 r = expand(tests[i] & tests[j]);
- Int128 s = int128_and(a, b);
- g_assert_cmpuint(r.lo, ==, s.lo);
- g_assert_cmpuint(r.hi, ==, s.hi);
- }
- }
-}
-
-static void test_add(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- Int128 a = expand(tests[i]);
- Int128 b = expand(tests[j]);
- Int128 r = expand(tests[i] + tests[j]);
- Int128 s = int128_add(a, b);
- g_assert_cmpuint(r.lo, ==, s.lo);
- g_assert_cmpuint(r.hi, ==, s.hi);
- }
- }
-}
-
-static void test_sub(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- Int128 a = expand(tests[i]);
- Int128 b = expand(tests[j]);
- Int128 r = expand(tests[i] - tests[j]);
- Int128 s = int128_sub(a, b);
- g_assert_cmpuint(r.lo, ==, s.lo);
- g_assert_cmpuint(r.hi, ==, s.hi);
- }
- }
-}
-
-static void test_neg(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- Int128 a = expand(tests[i]);
- Int128 r = expand(-tests[i]);
- Int128 s = int128_neg(a);
- g_assert_cmpuint(r.lo, ==, s.lo);
- g_assert_cmpuint(r.hi, ==, s.hi);
- }
-}
-
-static void test_nz(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- Int128 a = expand(tests[i]);
- g_assert_cmpuint(int128_nz(a), ==, tests[i] != 0);
- }
- }
-}
-
-static void test_le(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- /* Signed comparison */
- int32_t a = (int32_t) tests[i];
- int32_t b = (int32_t) tests[j];
- g_assert_cmpuint(int128_le(expand(a), expand(b)), ==, a <= b);
- }
- }
-}
-
-static void test_lt(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- /* Signed comparison */
- int32_t a = (int32_t) tests[i];
- int32_t b = (int32_t) tests[j];
- g_assert_cmpuint(int128_lt(expand(a), expand(b)), ==, a < b);
- }
- }
-}
-
-static void test_ge(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- /* Signed comparison */
- int32_t a = (int32_t) tests[i];
- int32_t b = (int32_t) tests[j];
- g_assert_cmpuint(int128_ge(expand(a), expand(b)), ==, a >= b);
- }
- }
-}
-
-static void test_gt(void)
-{
- int i, j;
-
- for (i = 0; i < ARRAY_SIZE(tests); ++i) {
- for (j = 0; j < ARRAY_SIZE(tests); ++j) {
- /* Signed comparison */
- int32_t a = (int32_t) tests[i];
- int32_t b = (int32_t) tests[j];
- g_assert_cmpuint(int128_gt(expand(a), expand(b)), ==, a > b);
- }
- }
-}
-
-/* Make sure to test undefined behavior at runtime! */
-
-static void __attribute__((__noinline__)) ATTRIBUTE_NOCLONE
-test_rshift_one(uint32_t x, int n, uint64_t h, uint64_t l)
-{
- Int128 a = expand(x);
- Int128 r = int128_rshift(a, n);
- g_assert_cmpuint(r.lo, ==, l);
- g_assert_cmpuint(r.hi, ==, h);
-}
-
-static void test_rshift(void)
-{
- test_rshift_one(0x00010000U, 64, 0x0000000000000000ULL, 0x0000000000000001ULL);
- test_rshift_one(0x80010000U, 64, 0xFFFFFFFFFFFFFFFFULL, 0x8000000000000001ULL);
- test_rshift_one(0x7FFE0000U, 64, 0x0000000000000000ULL, 0x7FFFFFFFFFFFFFFEULL);
- test_rshift_one(0xFFFE0000U, 64, 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFEULL);
- test_rshift_one(0x00010000U, 60, 0x0000000000000000ULL, 0x0000000000000010ULL);
- test_rshift_one(0x80010000U, 60, 0xFFFFFFFFFFFFFFF8ULL, 0x0000000000000010ULL);
- test_rshift_one(0x00018000U, 60, 0x0000000000000000ULL, 0x0000000000000018ULL);
- test_rshift_one(0x80018000U, 60, 0xFFFFFFFFFFFFFFF8ULL, 0x0000000000000018ULL);
- test_rshift_one(0x7FFE0000U, 60, 0x0000000000000007ULL, 0xFFFFFFFFFFFFFFE0ULL);
- test_rshift_one(0xFFFE0000U, 60, 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFE0ULL);
- test_rshift_one(0x7FFE8000U, 60, 0x0000000000000007ULL, 0xFFFFFFFFFFFFFFE8ULL);
- test_rshift_one(0xFFFE8000U, 60, 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFE8ULL);
- test_rshift_one(0x00018000U, 0, 0x0000000000000001ULL, 0x8000000000000000ULL);
- test_rshift_one(0x80018000U, 0, 0x8000000000000001ULL, 0x8000000000000000ULL);
- test_rshift_one(0x7FFE0000U, 0, 0x7FFFFFFFFFFFFFFEULL, 0x0000000000000000ULL);
- test_rshift_one(0xFFFE0000U, 0, 0xFFFFFFFFFFFFFFFEULL, 0x0000000000000000ULL);
- test_rshift_one(0x7FFE8000U, 0, 0x7FFFFFFFFFFFFFFEULL, 0x8000000000000000ULL);
- test_rshift_one(0xFFFE8000U, 0, 0xFFFFFFFFFFFFFFFEULL, 0x8000000000000000ULL);
-}
-
-int main(int argc, char **argv)
-{
- g_test_init(&argc, &argv, NULL);
- g_test_add_func("/int128/int128_and", test_and);
- g_test_add_func("/int128/int128_add", test_add);
- g_test_add_func("/int128/int128_sub", test_sub);
- g_test_add_func("/int128/int128_neg", test_neg);
- g_test_add_func("/int128/int128_nz", test_nz);
- g_test_add_func("/int128/int128_le", test_le);
- g_test_add_func("/int128/int128_lt", test_lt);
- g_test_add_func("/int128/int128_ge", test_ge);
- g_test_add_func("/int128/int128_gt", test_gt);
- g_test_add_func("/int128/int128_rshift", test_rshift);
- return g_test_run();
-}