[ARM/AArch64][testsuite] Add vqdmull_n tests.

2015-01-21  Christophe Lyon  <christophe.lyon@linaro.org>

	* gcc.target/aarch64/advsimd-intrinsics/vqdmull_n.c: New file.

From-SVN: r219950

gcc/testsuite/ChangeLog

 2015-01-21  Christophe Lyon  <christophe.lyon@linaro.org>
 
+	* gcc.target/aarch64/advsimd-intrinsics/vqdmull_n.c: New file.
+
+2015-01-21  Christophe Lyon  <christophe.lyon@linaro.org>
+
 	* gcc.target/aarch64/advsimd-intrinsics/vqdmull_lane.c: New file.
 
 2015-01-21  Christophe Lyon  <christophe.lyon@linaro.org>

gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqdmull_n.c

+#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;
+
+/* Expected results.  */
+VECT_VAR_DECL(expected,int,32,4) [] = { 0x44000, 0x44000,
+					0x44000, 0x44000 };
+VECT_VAR_DECL(expected,int,64,2) [] = { 0xaa000, 0xaa000 };
+
+/* Expected values of cumulative_saturation flag when saturation
+   occurs.  */
+int VECT_VAR(expected_cumulative_sat2,int,16,4) = 1;
+int VECT_VAR(expected_cumulative_sat2,int,32,2) = 1;
+
+/* Expected results when saturation occurs.  */
+VECT_VAR_DECL(expected2,int,32,4) [] = { 0x7fffffff, 0x7fffffff,
+					 0x7fffffff, 0x7fffffff };
+VECT_VAR_DECL(expected2,int,64,2) [] = { 0x7fffffffffffffff,
+					 0x7fffffffffffffff };
+
+#define INSN_NAME vqdmull
+#define TEST_MSG "VQDMULL_N"
+
+#define FNNAME1(NAME) exec_ ## NAME
+#define FNNAME(NAME) FNNAME1(NAME)
+
+void FNNAME (INSN_NAME) (void)
+{
+  int i;
+
+  /* vector_res = vqdmull_n(vector,val), then store the result.  */
+#define TEST_VQDMULL_N2(INSN, T1, T2, W, W2, N, L, EXPECTED_CUMULATIVE_SAT, CMT) \
+  Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W2, N));	\
+  VECT_VAR(vector_res, T1, W2, N) =				\
+    INSN##_n_##T2##W(VECT_VAR(vector, T1, W, N),		\
+		     L);					\
+  vst1q_##T2##W2(VECT_VAR(result, T1, W2, N),			\
+		 VECT_VAR(vector_res, T1, W2, N));		\
+  CHECK_CUMULATIVE_SAT(TEST_MSG, T1, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
+
+  /* Two auxliary macros are necessary to expand INSN.  */
+#define TEST_VQDMULL_N1(INSN, T1, T2, W, W2, N, L, EXPECTED_CUMULATIVE_SAT, CMT) \
+  TEST_VQDMULL_N2(INSN, T1, T2, W, W2, N, L, EXPECTED_CUMULATIVE_SAT, CMT)
+
+#define TEST_VQDMULL_N(T1, T2, W, W2, N, L, EXPECTED_CUMULATIVE_SAT, CMT) \
+  TEST_VQDMULL_N1(INSN_NAME, T1, T2, W, W2, N, L, EXPECTED_CUMULATIVE_SAT, CMT)
+
+  DECL_VARIABLE(vector, int, 16, 4);
+  DECL_VARIABLE(vector, int, 32, 2);
+  DECL_VARIABLE(vector2, int, 16, 4);
+  DECL_VARIABLE(vector2, int, 32, 2);
+
+  DECL_VARIABLE(vector_res, int, 32, 4);
+  DECL_VARIABLE(vector_res, int, 64, 2);
+
+  clean_results ();
+
+  /* Initialize vector.  */
+  VDUP(vector, , int, s, 16, 4, 0x1000);
+  VDUP(vector, , int, s, 32, 2, 0x1000);
+
+  /* Initialize vector2.  */
+  VDUP(vector2, , int, s, 16, 4, 0x4);
+  VDUP(vector2, , int, s, 32, 2, 0x2);
+
+  /* Choose multiplier arbitrarily.  */
+  TEST_VQDMULL_N(int, s, 16, 32, 4, 0x22, expected_cumulative_sat, "");
+  TEST_VQDMULL_N(int, s, 32, 64, 2, 0x55, expected_cumulative_sat, "");
+
+  CHECK(TEST_MSG, int, 32, 4, PRIx32, expected, "");
+  CHECK(TEST_MSG, int, 64, 2, PRIx64, expected, "");
+
+  VDUP(vector, , int, s, 16, 4, 0x8000);
+  VDUP(vector, , int, s, 32, 2, 0x80000000);
+
+#define TEST_MSG2 "with saturation"
+  TEST_VQDMULL_N(int, s, 16, 32, 4, 0x8000, expected_cumulative_sat2, TEST_MSG2);
+  TEST_VQDMULL_N(int, s, 32, 64, 2, 0x80000000, expected_cumulative_sat2, TEST_MSG2);
+
+  CHECK(TEST_MSG, int, 32, 4, PRIx32, expected2, TEST_MSG2);
+  CHECK(TEST_MSG, int, 64, 2, PRIx64, expected2, TEST_MSG2);
+}
+
+int main (void)
+{
+  FNNAME (INSN_NAME) ();
+  return 0;
+}