Commit 9700e11532 for qemu.org

commit 9700e11532d2168e81d2c8685ad5c03ba9cb6fbd
Author: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Date:   Thu Oct 29 11:18:18 2026 +0100

    tests/tcg/mipsel: Add MIPS32R6 multiply tests

    Test MUL[U] and MUH[U].

    Signed-off-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
    Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
    Message-ID: <20261030182546.2508-7-philmd@oss.qualcomm.com>

diff --git a/tests/tcg/mipsel/meson.build b/tests/tcg/mipsel/meson.build
index 0c43c31e73..f540d18b3b 100644
--- a/tests/tcg/mipsel/meson.build
+++ b/tests/tcg/mipsel/meson.build
@@ -69,6 +69,7 @@ tests = []
 tests_mips32r6 = [
   'test_mips32r6_bitops.c',
   'test_mips32r6_logic.c',
+  'test_mips32r6_multiply.c',
   'test_mips32r6_shift.c',
 ]

diff --git a/tests/tcg/mipsel/test_mips32r6_multiply.c b/tests/tcg/mipsel/test_mips32r6_multiply.c
new file mode 100644
index 0000000000..7d253cd394
--- /dev/null
+++ b/tests/tcg/mipsel/test_mips32r6_multiply.c
@@ -0,0 +1,78 @@
+/*
+ * MIPS32R6 tests: multiply instructions
+ *
+ * Author:
+ *   Philippe Mathieu-Daudé
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include <stdint.h>
+
+#include "../include/tap.h"
+#include "../mips/include/wrappers_mips32r6.h"
+#include "../mips/include/test_inputs_32.h"
+
+typedef void (*binary_op_32)(const uint32_t *, const uint32_t *, uint32_t *);
+typedef uint32_t (*ref_op_32)(uint32_t, uint32_t);
+
+static uint32_t ref_mul(uint32_t a, uint32_t b)
+{
+    return (uint32_t)((int64_t)(int32_t)a * (int32_t)b);
+}
+
+static uint32_t ref_muh(uint32_t a, uint32_t b)
+{
+    return (uint32_t)(((int64_t)(int32_t)a * (int32_t)b) >> 32);
+}
+
+static uint32_t ref_mulu(uint32_t a, uint32_t b)
+{
+    return (uint32_t)((uint64_t)a * b);
+}
+
+static uint32_t ref_muhu(uint32_t a, uint32_t b)
+{
+    return (uint32_t)(((uint64_t)a * b) >> 32);
+}
+
+static int check_op(const char *name, binary_op_32 op, ref_op_32 ref,
+                    const uint32_t *input, size_t count)
+{
+    int fail = 0;
+
+    for (size_t i = 0; i < count; i++) {
+        for (size_t j = 0; j < count; j++) {
+            uint32_t a = input[i], b = input[j], res = 0;
+
+            op(&a, &b, &res);
+            if (res != ref(a, b)) {
+                TAP_INFO("%s: %08x, %08x: got %08x expected %08x",
+                         name, a, b, res, ref(a, b));
+                fail = 1;
+            }
+        }
+    }
+    return fail;
+}
+
+static int run(const char *name, binary_op_32 op, ref_op_32 ref)
+{
+    int ret = 0;
+
+    ret |= check_op(name, op, ref, b32_pattern, PATTERN_INPUTS_32_COUNT);
+    ret |= check_op(name, op, ref, b32_random, RANDOM_INPUTS_32_COUNT);
+    tap_report(!ret, "MIPS32R6 multiply %s", name);
+    return ret;
+}
+
+int main(void)
+{
+    TAP_START();
+    run("MUL", do_mips32r6_MUL, ref_mul);
+    run("MUH", do_mips32r6_MUH, ref_muh);
+    run("MULU", do_mips32r6_MULU, ref_mulu);
+    run("MUHU", do_mips32r6_MUHU, ref_muhu);
+
+    return tap_done();
+}