Hexagon (tests/tcg/hexagon) Add v68 scalar tests

Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Reviewed-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20230427224057.3766963-4-tsimpson@quicinc.com>

tests/tcg/hexagon/Makefile.target

@@ -76,6 +76,8 @@ HEX_TESTS += test_vminh
 HEX_TESTS += test_vpmpyh
 HEX_TESTS += test_vspliceb
 
+HEX_TESTS += v68_scalar
+
 TESTS += $(HEX_TESTS)
 
 # This test has to be compiled for the -mv67t target

tests/tcg/hexagon/v68_scalar.c

@@ -0,0 +1,186 @@
+/*
+ *  Copyright(c) 2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+/*
+ *  Test the scalar core instructions that are new in v68
+ */
+
+int err;
+
+static int buffer32[] = { 1, 2, 3, 4 };
+static long long buffer64[] = { 5, 6, 7, 8 };
+
+static void __check32(int line, uint32_t result, uint32_t expect)
+{
+    if (result != expect) {
+        printf("ERROR at line %d: 0x%08x != 0x%08x\n",
+               line, result, expect);
+        err++;
+    }
+}
+
+#define check32(RES, EXP) __check32(__LINE__, RES, EXP)
+
+static void __check64(int line, uint64_t result, uint64_t expect)
+{
+    if (result != expect) {
+        printf("ERROR at line %d: 0x%016llx != 0x%016llx\n",
+               line, result, expect);
+        err++;
+    }
+}
+
+#define check64(RES, EXP) __check64(__LINE__, RES, EXP)
+
+static inline int loadw_aq(int *p)
+{
+    int res;
+    asm volatile("%0 = memw_aq(%1)\n\t"
+                 : "=r"(res) : "r"(p));
+    return res;
+}
+
+static void test_loadw_aq(void)
+{
+    int res;
+
+    res = loadw_aq(&buffer32[0]);
+    check32(res, 1);
+    res = loadw_aq(&buffer32[1]);
+    check32(res, 2);
+}
+
+static inline long long loadd_aq(long long *p)
+{
+    long long res;
+    asm volatile("%0 = memd_aq(%1)\n\t"
+                 : "=r"(res) : "r"(p));
+    return res;
+}
+
+static void test_loadd_aq(void)
+{
+    long long res;
+
+    res = loadd_aq(&buffer64[2]);
+    check64(res, 7);
+    res = loadd_aq(&buffer64[3]);
+    check64(res, 8);
+}
+
+static inline void release_at(int *p)
+{
+    asm volatile("release(%0):at\n\t"
+                 : : "r"(p));
+}
+
+static void test_release_at(void)
+{
+    release_at(&buffer32[2]);
+    check64(buffer32[2], 3);
+    release_at(&buffer32[3]);
+    check64(buffer32[3], 4);
+}
+
+static inline void release_st(int *p)
+{
+    asm volatile("release(%0):st\n\t"
+                 : : "r"(p));
+}
+
+static void test_release_st(void)
+{
+    release_st(&buffer32[2]);
+    check64(buffer32[2], 3);
+    release_st(&buffer32[3]);
+    check64(buffer32[3], 4);
+}
+
+static inline void storew_rl_at(int *p, int val)
+{
+    asm volatile("memw_rl(%0):at = %1\n\t"
+                 : : "r"(p), "r"(val) : "memory");
+}
+
+static void test_storew_rl_at(void)
+{
+    storew_rl_at(&buffer32[2], 9);
+    check64(buffer32[2], 9);
+    storew_rl_at(&buffer32[3], 10);
+    check64(buffer32[3], 10);
+}
+
+static inline void stored_rl_at(long long *p, long long val)
+{
+    asm volatile("memd_rl(%0):at = %1\n\t"
+                 : : "r"(p), "r"(val) : "memory");
+}
+
+static void test_stored_rl_at(void)
+{
+    stored_rl_at(&buffer64[2], 11);
+    check64(buffer64[2], 11);
+    stored_rl_at(&buffer64[3], 12);
+    check64(buffer64[3], 12);
+}
+
+static inline void storew_rl_st(int *p, int val)
+{
+    asm volatile("memw_rl(%0):st = %1\n\t"
+                 : : "r"(p), "r"(val) : "memory");
+}
+
+static void test_storew_rl_st(void)
+{
+    storew_rl_st(&buffer32[0], 13);
+    check64(buffer32[0], 13);
+    storew_rl_st(&buffer32[1], 14);
+    check64(buffer32[1], 14);
+}
+
+static inline void stored_rl_st(long long *p, long long val)
+{
+    asm volatile("memd_rl(%0):st = %1\n\t"
+                 : : "r"(p), "r"(val) : "memory");
+}
+
+static void test_stored_rl_st(void)
+{
+    stored_rl_st(&buffer64[0], 15);
+    check64(buffer64[0], 15);
+    stored_rl_st(&buffer64[1], 15);
+    check64(buffer64[1], 15);
+}
+
+int main()
+{
+    test_loadw_aq();
+    test_loadd_aq();
+    test_release_at();
+    test_release_st();
+    test_storew_rl_at();
+    test_stored_rl_at();
+    test_storew_rl_st();
+    test_stored_rl_st();
+
+    puts(err ? "FAIL" : "PASS");
+    return err ? 1 : 0;
+}