[Patch ARM-AArch64/testsuite Neon intrinsics 03/13] Add vqrdmulh tests.

[Christophe Lyon <christophe dot lyon at linaro dot org>]

diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqrdmulh.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqrdmulh.c
new file mode 100644
index 0000000..8875c53
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqrdmulh.c
@@ -0,0 +1,161 @@
+#include <arm_neon.h>
+#include "arm-neon-ref.h"
+#include "compute-ref-data.h"
+
+/* Expected values of cumulative_saturation flag.  */
+int VECT_VAR(expected_cumulative_sat,int,16,4) = 0;
+int VECT_VAR(expected_cumulative_sat,int,32,2) = 0;
+int VECT_VAR(expected_cumulative_sat,int,16,8) = 0;
+int VECT_VAR(expected_cumulative_sat,int,32,4) = 0;
+
+/* Expected results.  */
+VECT_VAR_DECL(expected,int,16,4) [] = { 0xfff5, 0xfff6, 0xfff7, 0xfff7 };
+VECT_VAR_DECL(expected,int,32,2) [] = { 0x0, 0x0 };
+VECT_VAR_DECL(expected,int,16,8) [] = { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 };
+VECT_VAR_DECL(expected,int,32,4) [] = { 0x0, 0x0, 0x0, 0x0 };
+
+/* Expected values of cumulative_saturation flag when multiplication
+   saturates.  */
+int VECT_VAR(expected_cumulative_sat_mul,int,16,4) = 1;
+int VECT_VAR(expected_cumulative_sat_mul,int,32,2) = 1;
+int VECT_VAR(expected_cumulative_sat_mul,int,16,8) = 1;
+int VECT_VAR(expected_cumulative_sat_mul,int,32,4) = 1;
+
+/* Expected results when multiplication saturates.  */
+VECT_VAR_DECL(expected_mul,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
+VECT_VAR_DECL(expected_mul,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
+VECT_VAR_DECL(expected_mul,int,16,8) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff,
+					    0x7fff, 0x7fff, 0x7fff, 0x7fff };
+VECT_VAR_DECL(expected_mul,int,32,4) [] = { 0x7fffffff, 0x7fffffff,
+					    0x7fffffff, 0x7fffffff };
+
+/* Expected values of cumulative_saturation flag when rounding
+   should not cause saturation.  */
+int VECT_VAR(expected_cumulative_sat_round,int,16,4) = 0;
+int VECT_VAR(expected_cumulative_sat_round,int,32,2) = 0;
+int VECT_VAR(expected_cumulative_sat_round,int,16,8) = 0;
+int VECT_VAR(expected_cumulative_sat_round,int,32,4) = 0;
+
+/* Expected results when rounding should not cause saturation.  */
+VECT_VAR_DECL(expected_round,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
+VECT_VAR_DECL(expected_round,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
+VECT_VAR_DECL(expected_round,int,16,8) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff,
+					      0x7fff, 0x7fff, 0x7fff, 0x7fff };
+VECT_VAR_DECL(expected_round,int,32,4) [] = { 0x7fffffff, 0x7fffffff,
+					      0x7fffffff, 0x7fffffff };
+
+#define INSN vqrdmulh
+#define TEST_MSG "VQRDMULH"
+
+#define FNNAME1(NAME) void exec_ ## NAME (void)
+#define FNNAME(NAME) FNNAME1(NAME)
+
+FNNAME (INSN)
+{
+  /* vector_res = vqrdmulh(vector,vector2), then store the result.  */
+#define TEST_VQRDMULH2(INSN, Q, T1, T2, W, N, EXPECTED_CUMULATIVE_SAT, CMT) \
+  Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W, N));	\
+  VECT_VAR(vector_res, T1, W, N) =				\
+    INSN##Q##_##T2##W(VECT_VAR(vector, T1, W, N),		\
+		      VECT_VAR(vector2, T1, W, N));		\
+  vst1##Q##_##T2##W(VECT_VAR(result, T1, W, N),			\
+		    VECT_VAR(vector_res, T1, W, N));		\
+  CHECK_CUMULATIVE_SAT(TEST_MSG, T1, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
+
+  /* Two auxliary macros are necessary to expand INSN */
+#define TEST_VQRDMULH1(INSN, Q, T1, T2, W, N, EXPECTED_CUMULATIVE_SAT, CMT) \
+  TEST_VQRDMULH2(INSN, Q, T1, T2, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
+
+#define TEST_VQRDMULH(Q, T1, T2, W, N, EXPECTED_CUMULATIVE_SAT, CMT)	\
+  TEST_VQRDMULH1(INSN, Q, T1, T2, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
+
+
+  DECL_VARIABLE(vector, int, 16, 4);
+  DECL_VARIABLE(vector, int, 32, 2);
+  DECL_VARIABLE(vector, int, 16, 8);
+  DECL_VARIABLE(vector, int, 32, 4);
+
+  DECL_VARIABLE(vector_res, int, 16, 4);
+  DECL_VARIABLE(vector_res, int, 32, 2);
+  DECL_VARIABLE(vector_res, int, 16, 8);
+  DECL_VARIABLE(vector_res, int, 32, 4);
+
+  DECL_VARIABLE(vector2, int, 16, 4);
+  DECL_VARIABLE(vector2, int, 32, 2);
+  DECL_VARIABLE(vector2, int, 16, 8);
+  DECL_VARIABLE(vector2, int, 32, 4);
+
+  clean_results ();
+
+  VLOAD(vector, buffer, , int, s, 16, 4);
+  VLOAD(vector, buffer, , int, s, 32, 2);
+  VLOAD(vector, buffer, q, int, s, 16, 8);
+  VLOAD(vector, buffer, q, int, s, 32, 4);
+
+  /* Initialize vector2.  */
+  VDUP(vector2, , int, s, 16, 4, 0x5555);
+  VDUP(vector2, , int, s, 32, 2, 0xBB);
+  VDUP(vector2, q, int, s, 16, 8, 0x33);
+  VDUP(vector2, q, int, s, 32, 4, 0x22);
+
+#define CMT ""
+  TEST_VQRDMULH(, int, s, 16, 4, expected_cumulative_sat, CMT);
+  TEST_VQRDMULH(, int, s, 32, 2, expected_cumulative_sat, CMT);
+  TEST_VQRDMULH(q, int, s, 16, 8, expected_cumulative_sat, CMT);
+  TEST_VQRDMULH(q, int, s, 32, 4, expected_cumulative_sat, CMT);
+
+  CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
+  CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
+  CHECK(TEST_MSG, int, 16, 8, PRIx16, expected, CMT);
+  CHECK(TEST_MSG, int, 32, 4, PRIx32, expected, CMT);
+
+  /* Now use input values such that the multiplication causes
+     saturation.  */
+#define TEST_MSG_MUL " (check mul cumulative saturation)"
+  VDUP(vector, , int, s, 16, 4, 0x8000);
+  VDUP(vector, , int, s, 32, 2, 0x80000000);
+  VDUP(vector, q, int, s, 16, 8, 0x8000);
+  VDUP(vector, q, int, s, 32, 4, 0x80000000);
+  VDUP(vector2, , int, s, 16, 4, 0x8000);
+  VDUP(vector2, , int, s, 32, 2, 0x80000000);
+  VDUP(vector2, q, int, s, 16, 8, 0x8000);
+  VDUP(vector2, q, int, s, 32, 4, 0x80000000);
+
+  TEST_VQRDMULH(, int, s, 16, 4, expected_cumulative_sat_mul, TEST_MSG_MUL);
+  TEST_VQRDMULH(, int, s, 32, 2, expected_cumulative_sat_mul, TEST_MSG_MUL);
+  TEST_VQRDMULH(q, int, s, 16, 8, expected_cumulative_sat_mul, TEST_MSG_MUL);
+  TEST_VQRDMULH(q, int, s, 32, 4, expected_cumulative_sat_mul, TEST_MSG_MUL);
+
+  CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_mul, TEST_MSG_MUL);
+  CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_mul, TEST_MSG_MUL);
+  CHECK(TEST_MSG, int, 16, 8, PRIx16, expected_mul, TEST_MSG_MUL);
+  CHECK(TEST_MSG, int, 32, 4, PRIx32, expected_mul, TEST_MSG_MUL);
+
+  /* Use input values where rounding produces a result equal to the
+     saturation value, but does not set the saturation flag.  */
+#define TEST_MSG_ROUND " (check rounding)"
+  VDUP(vector, , int, s, 16, 4, 0x8000);
+  VDUP(vector, , int, s, 32, 2, 0x80000000);
+  VDUP(vector, q, int, s, 16, 8, 0x8000);
+  VDUP(vector, q, int, s, 32, 4, 0x80000000);
+  VDUP(vector2, , int, s, 16, 4, 0x8001);
+  VDUP(vector2, , int, s, 32, 2, 0x80000001);
+  VDUP(vector2, q, int, s, 16, 8, 0x8001);
+  VDUP(vector2, q, int, s, 32, 4, 0x80000001);
+
+  TEST_VQRDMULH(, int, s, 16, 4, expected_cumulative_sat_round, TEST_MSG_ROUND);
+  TEST_VQRDMULH(, int, s, 32, 2, expected_cumulative_sat_round, TEST_MSG_ROUND);
+  TEST_VQRDMULH(q, int, s, 16, 8, expected_cumulative_sat_round, TEST_MSG_ROUND);
+  TEST_VQRDMULH(q, int, s, 32, 4, expected_cumulative_sat_round, TEST_MSG_ROUND);
+
+  CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_round, TEST_MSG_ROUND);
+  CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_round, TEST_MSG_ROUND);
+  CHECK(TEST_MSG, int, 16, 8, PRIx16, expected_round, TEST_MSG_ROUND);
+  CHECK(TEST_MSG, int, 32, 4, PRIx32, expected_round, TEST_MSG_ROUND);
+}
+
+int main (void)
+{
+  exec_vqrdmulh ();
+  return 0;
+}
-- 
2.1.4