[Qemu-devel] [PATCH 7/9] tests/tcg/mips: Test R5900 multimedia instructions PCPYUD and PCPYLD

[Fredrik Noring]

Signed-off-by: Fredrik Noring <address@hidden>
---
 tests/tcg/mips/mipsn32r5900/Makefile  | 25 +++++++++++++++
 tests/tcg/mips/mipsn32r5900/pcpyuld.c | 46 +++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 tests/tcg/mips/mipsn32r5900/Makefile
 create mode 100644 tests/tcg/mips/mipsn32r5900/pcpyuld.c

diff --git a/tests/tcg/mips/mipsn32r5900/Makefile 
b/tests/tcg/mips/mipsn32r5900/Makefile
new file mode 100644
index 0000000000..f4887678ae
--- /dev/null
+++ b/tests/tcg/mips/mipsn32r5900/Makefile
@@ -0,0 +1,25 @@
+-include ../../config-host.mak
+
+CROSS=mips64r5900el-unknown-linux-gnu-
+
+SIM=qemu-mipsn32el
+SIM_FLAGS=-cpu R5900
+
+CC      = $(CROSS)gcc
+CFLAGS  = -Wall -mabi=n32 -march=r5900 -static
+
+TESTCASES = pcpyuld.tst
+
+all: $(TESTCASES)
+
+%.tst: %.c
+       $(CC) $(CFLAGS) $< -o $@
+
+check: $(TESTCASES)
+       @for case in $(TESTCASES); do \
+        echo $(SIM) $(SIM_FLAGS) ./$$case;\
+        $(SIM) $(SIM_FLAGS) ./$$case; \
+       done
+
+clean:
+       $(RM) -rf $(TESTCASES)
diff --git a/tests/tcg/mips/mipsn32r5900/pcpyuld.c 
b/tests/tcg/mips/mipsn32r5900/pcpyuld.c
new file mode 100644
index 0000000000..c92af6330b
--- /dev/null
+++ b/tests/tcg/mips/mipsn32r5900/pcpyuld.c
@@ -0,0 +1,46 @@
+/*
+ * Test PCPYUD and PCPYLD.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+
+/* 128-bit multimedia register */
+struct mmr { uint64_t hi, lo; } __attribute__((aligned(16)));
+
+static void verify_zero(void)
+{
+    __asm__ __volatile__ (
+        "    pcpyud  $0, $0, $0\n"
+        "    pcpyld  $0, $0, $0\n"
+    );
+}
+
+static void verify_copy(void)
+{
+    const struct mmr value = {
+        .hi = 0x6665646362613938,
+        .lo = 0x3736353433323130
+    };
+    struct mmr result = { };
+
+    __asm__ __volatile__ (
+        "    pcpyld  %0, %2, %3\n"
+        "    move    %1, %0\n"
+        "    pcpyud  %0, %0, %0\n"
+        : "=r" (result.hi), "=r" (result.lo)
+        : "r" (value.hi), "r" (value.lo));
+
+    assert(value.hi == result.hi);
+    assert(value.lo == result.lo);
+}
+
+int main()
+{
+    verify_zero();
+    verify_copy();
+
+    return 0;
+}
-- 
2.19.2