Signed-off-by: Fredrik Noring <nor...@nocrew.org>
---
tests/tcg/mips/mipsn32r5900/Makefile | 3 +-
tests/tcg/mips/mipsn32r5900/lq.c | 111 +++++++++++++++++++++++++++
2 files changed, 113 insertions(+), 1 deletion(-)
create mode 100644 tests/tcg/mips/mipsn32r5900/lq.c
diff --git a/tests/tcg/mips/mipsn32r5900/Makefile
b/tests/tcg/mips/mipsn32r5900/Makefile
index f4887678ae..cb3ef9d26a 100644
--- a/tests/tcg/mips/mipsn32r5900/Makefile
+++ b/tests/tcg/mips/mipsn32r5900/Makefile
@@ -8,7 +8,8 @@ SIM_FLAGS=-cpu R5900
CC = $(CROSS)gcc
CFLAGS = -Wall -mabi=n32 -march=r5900 -static
-TESTCASES = pcpyuld.tst
+TESTCASES = lq.tst
+TESTCASES += pcpyuld.tst
all: $(TESTCASES)
diff --git a/tests/tcg/mips/mipsn32r5900/lq.c b/tests/tcg/mips/mipsn32r5900/lq.c
new file mode 100644
index 0000000000..5a16b12450
--- /dev/null
+++ b/tests/tcg/mips/mipsn32r5900/lq.c
@@ -0,0 +1,111 @@
+/*
+ * Test LQ.
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <assert.h>
+
+/* 128-bit multimedia register */
+struct mmr { uint64_t hi, lo; } __attribute__((aligned(16)));
+
+#define LQ(base, offset) \
+ ({ \
+ uint64_t hi, lo; \
+ \
+ __asm__ __volatile__ ( \
+ " pcpyld %1, %1, %1\n" \
+ " lq %1, %3(%2)\n" \
+ " pcpyud %0, %1, %1\n" \
+ : "=r" (hi), "=r" (lo) \
+ : "r" (base), "i" (offset)); \
+ \
+ (struct mmr) { .hi = hi, .lo = lo }; \
+ })
+
+static uint64_t ld_reference(const void *base, int16_t offset)
+{
+ const uint8_t *p = base;
+ uint64_t r = 0;
+ int i;
+
+ for (i = 0; i < 8; i++) {
+ r |= (uint64_t)p[offset + i] << (8 * i);
+ }
+
+ return r;
+}
+
+static struct mmr lq_reference(const void *base, int16_t offset)
+{
+ /*
+ * The least significant four bits of the effective address are
+ * masked to zero, effectively creating an aligned address. No
+ * address exceptions due to alignment are possible.
+ */
+ const uint8_t *b = base;
+ const uint8_t *o = &b[offset];
+ const void *a = (const void*)((unsigned long)o & ~0xFUL);
+
+ return (struct mmr) {
+ .hi = ld_reference(a, 8),
+ .lo = ld_reference(a, 0)
+ };
+}
+
+static void assert_equal_mmr(struct mmr a, struct mmr b)
+{
+ assert(a.hi == b.hi);
+ assert(a.lo == b.lo);
+}
+
+#define VERIFY_LQ(base, offset) \
+ assert_equal_mmr(LQ(base, offset), lq_reference(base, offset))
+
+int main()
+{
+ static const char data[] __attribute__((aligned(16)))=
+ "0123456789abcdef"
+ "ghijklmnopqrstuv"
+ "wxyzABCDEFGHIJKL"
+ "MNOPQRSTUVWXYZ.,";
+ int i;
+
+ for (i = 16; i < 48; i++) {
+ VERIFY_LQ(&data[i], -16);
+ VERIFY_LQ(&data[i], -15);
+ VERIFY_LQ(&data[i], -14);
+ VERIFY_LQ(&data[i], -13);
+ VERIFY_LQ(&data[i], -12);
+ VERIFY_LQ(&data[i], -11);
+ VERIFY_LQ(&data[i], -10);
+ VERIFY_LQ(&data[i], -9);
+ VERIFY_LQ(&data[i], -8);
+ VERIFY_LQ(&data[i], -7);
+ VERIFY_LQ(&data[i], -6);
+ VERIFY_LQ(&data[i], -5);
+ VERIFY_LQ(&data[i], -4);
+ VERIFY_LQ(&data[i], -3);
+ VERIFY_LQ(&data[i], -2);
+ VERIFY_LQ(&data[i], -1);
+ VERIFY_LQ(&data[i], 0);
+ VERIFY_LQ(&data[i], 1);
+ VERIFY_LQ(&data[i], 2);
+ VERIFY_LQ(&data[i], 3);
+ VERIFY_LQ(&data[i], 4);
+ VERIFY_LQ(&data[i], 5);
+ VERIFY_LQ(&data[i], 6);
+ VERIFY_LQ(&data[i], 7);
+ VERIFY_LQ(&data[i], 8);
+ VERIFY_LQ(&data[i], 9);
+ VERIFY_LQ(&data[i], 10);
+ VERIFY_LQ(&data[i], 11);
+ VERIFY_LQ(&data[i], 12);
+ VERIFY_LQ(&data[i], 13);
+ VERIFY_LQ(&data[i], 14);
+ VERIFY_LQ(&data[i], 15);
+ VERIFY_LQ(&data[i], 16);
+ }
+
+ return 0;
+}
--
2.19.2
