6 files changed, 126 insertions, 1 deletions
diff --git a/tests/bench/bufferiszero-bench.c b/tests/bench/bufferiszero-bench.c
new file mode 100644
index 0000000000..222695c1fa
--- /dev/null
+++ b/tests/bench/bufferiszero-bench.c
@@ -0,0 +1,47 @@
+/*
+ * QEMU buffer_is_zero speed benchmark
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version.  See the COPYING file in the
+ * top-level directory.
+ */
+#include "qemu/osdep.h"
+#include "qemu/cutils.h"
+#include "qemu/units.h"
+
+static void test(const void *opaque)
+{
+    size_t max = 64 * KiB;
+    void *buf = g_malloc0(max);
+    int accel_index = 0;
+
+    do {
+        if (accel_index != 0) {
+            g_test_message("%s", "");  /* gnu_printf Werror for simple "" */
+        }
+        for (size_t len = 1 * KiB; len <= max; len *= 4) {
+            double total = 0.0;
+
+            g_test_timer_start();
+            do {
+                buffer_is_zero_ge256(buf, len);
+                total += len;
+            } while (g_test_timer_elapsed() < 0.5);
+
+            total /= MiB;
+            g_test_message("buffer_is_zero #%d: %2zuKB %8.0f MB/sec",
+                           accel_index, len / (size_t)KiB,
+                           total / g_test_timer_last());
+        }
+        accel_index++;
+    } while (test_buffer_is_zero_next_accel());
+
+    g_free(buf);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+    g_test_add_data_func("/cutils/bufferiszero/speed", NULL, test);
+    return g_test_run();
+}
diff --git a/tests/bench/meson.build b/tests/bench/meson.build
index 7e76338a52..4cd7a2f6b5 100644
--- a/tests/bench/meson.build
+++ b/tests/bench/meson.build
@@ -21,6 +21,7 @@ benchs = {}
 
 if have_block
   benchs += {
+     'bufferiszero-bench': [],
      'benchmark-crypto-hash': [crypto],
      'benchmark-crypto-hmac': [crypto],
      'benchmark-crypto-cipher': [crypto],
diff --git a/tests/tcg/hexagon/hvx_misc.c b/tests/tcg/hexagon/hvx_misc.c
index b45170acd1..1fe14b5158 100644
--- a/tests/tcg/hexagon/hvx_misc.c
+++ b/tests/tcg/hexagon/hvx_misc.c
@@ -1,5 +1,5 @@
 /*
- *  Copyright(c) 2021-2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
+ *  Copyright(c) 2021-2024 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
@@ -231,6 +231,7 @@ static void test_masked_store(bool invert)
 static void test_new_value_store(void)
 {
     void *p0 = buffer0;
+    void *p1 = buffer1;
     void *pout = output;
 
     asm("{\n\t"
@@ -242,6 +243,19 @@ static void test_new_value_store(void)
     expect[0] = buffer0[0];
 
     check_output_w(__LINE__, 1);
+
+    /* Test the .new read from the high half of a pair */
+    asm("v7 = vmem(%0 + #0)\n\t"
+        "v12 = vmem(%1 + #0)\n\t"
+        "{\n\t"
+        "    v5:4 = vcombine(v12, v7)\n\t"
+        "    vmem(%2 + #0) = v5.new\n\t"
+        "}\n\t"
+        : : "r"(p0), "r"(p1), "r"(pout) : "v4", "v5", "v7", "v12", "memory");
+
+    expect[0] = buffer1[0];
+
+    check_output_w(__LINE__, 1);
 }
 
 static void test_max_temps()
diff --git a/tests/tcg/sh4/Makefile.target b/tests/tcg/sh4/Makefile.target
index 4d09291c0c..7852fa62d8 100644
--- a/tests/tcg/sh4/Makefile.target
+++ b/tests/tcg/sh4/Makefile.target
@@ -17,3 +17,9 @@ TESTS += test-macl
 
 test-macw: CFLAGS += -O -g
 TESTS += test-macw
+
+test-addv: CFLAGS += -O -g
+TESTS += test-addv
+
+test-subv: CFLAGS += -O -g
+TESTS += test-subv
diff --git a/tests/tcg/sh4/test-addv.c b/tests/tcg/sh4/test-addv.c
new file mode 100644
index 0000000000..ca87fe746a
--- /dev/null
+++ b/tests/tcg/sh4/test-addv.c
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void addv(const int a, const int b, const int res, const int carry)
+{
+    int o = a, c;
+
+    asm volatile("addv %2,%0\n"
+                 "movt %1\n"
+                 : "+r"(o), "=r"(c) : "r"(b) : );
+
+    if (c != carry || o != res) {
+        printf("ADDV %d, %d = %d/%d [T = %d/%d]\n", a, b, o, res, c, carry);
+        abort();
+    }
+}
+
+int main(void)
+{
+    addv(INT_MAX, 1, INT_MIN, 1);
+    addv(INT_MAX - 1, 1, INT_MAX, 0);
+
+    return 0;
+}
diff --git a/tests/tcg/sh4/test-subv.c b/tests/tcg/sh4/test-subv.c
new file mode 100644
index 0000000000..a3c2db96e4
--- /dev/null
+++ b/tests/tcg/sh4/test-subv.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static void subv(const int a, const int b, const int res, const int carry)
+{
+    int o = a, c;
+
+    asm volatile("subv %2,%0\n"
+                 "movt %1\n"
+                 : "+r"(o), "=r"(c) : "r"(b) : );
+
+    if (c != carry || o != res) {
+        printf("SUBV %d, %d = %d/%d [T = %d/%d]\n", a, b, o, res, c, carry);
+        abort();
+    }
+}
+
+int main(void)
+{
+    subv(INT_MIN, 1, INT_MAX, 1);
+    subv(INT_MAX, -1, INT_MIN, 1);
+    subv(INT_MAX, 1, INT_MAX - 1, 0);
+    subv(0, 1, -1, 0);
+    subv(-1, -1, 0, 0);
+
+    return 0;
+}