2015-05-19 Christophe Lyon <christophe.lyon@linaro.org>

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



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223386 138bc75d-0d04-0410-961f-82ee72b054a4

2 files changed, 137 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6ec311f28aa..0805356b6a8 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,9 @@
 2015-05-19  Christophe Lyon  <christophe.lyon@linaro.org>
 
+	* gcc.target/aarch64/advsimd-intrinsics/vqshrun_n.c: New file.
+
+2015-05-19  Christophe Lyon  <christophe.lyon@linaro.org>
+
 	* gcc.target/aarch64/advsimd-intrinsics/vqshrn_n.c: New file.
 
 2015-05-19  Christophe Lyon  <christophe.lyon@linaro.org>
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqshrun_n.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqshrun_n.c
new file mode 100644
index 00000000000..ce1a3ff09b2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqshrun_n.c
@@ -0,0 +1,133 @@
+#include <arm_neon.h>
+#include "arm-neon-ref.h"
+#include "compute-ref-data.h"
+
+/* Expected values of cumulative_saturation flag with negative input.  */
+int VECT_VAR(expected_cumulative_sat_neg,int,16,8) = 1;
+int VECT_VAR(expected_cumulative_sat_neg,int,32,4) = 1;
+int VECT_VAR(expected_cumulative_sat_neg,int,64,2) = 1;
+
+/* Expected results with negative input.  */
+VECT_VAR_DECL(expected_neg,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
+					    0x0, 0x0, 0x0, 0x0 };
+VECT_VAR_DECL(expected_neg,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
+VECT_VAR_DECL(expected_neg,uint,32,2) [] = { 0x0, 0x0 };
+
+/* Expected values of cumulative_saturation flag with max input value
+   shifted by 1.  */
+int VECT_VAR(expected_cumulative_sat_max_sh1,int,16,8) = 1;
+int VECT_VAR(expected_cumulative_sat_max_sh1,int,32,4) = 1;
+int VECT_VAR(expected_cumulative_sat_max_sh1,int,64,2) = 1;
+
+/* Expected results with max input value shifted by 1.  */
+VECT_VAR_DECL(expected_max_sh1,uint,8,8) [] = { 0xff, 0xff, 0xff, 0xff,
+						0xff, 0xff, 0xff, 0xff };
+VECT_VAR_DECL(expected_max_sh1,uint,16,4) [] = { 0xffff, 0xffff,
+						 0xffff, 0xffff };
+VECT_VAR_DECL(expected_max_sh1,uint,32,2) [] = { 0xffffffff, 0xffffffff };
+VECT_VAR_DECL(expected_max_sh1,uint,64,1) [] = { 0x3333333333333333 };
+
+/* Expected values of cumulative_saturation flag.  */
+int VECT_VAR(expected_cumulative_sat,int,16,8) = 0;
+int VECT_VAR(expected_cumulative_sat,int,32,4) = 1;
+int VECT_VAR(expected_cumulative_sat,int,64,2) = 0;
+
+/* Expected results.  */
+VECT_VAR_DECL(expected,uint,8,8) [] = { 0x48, 0x48, 0x48, 0x48,
+					0x48, 0x48, 0x48, 0x48 };
+VECT_VAR_DECL(expected,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
+VECT_VAR_DECL(expected,uint,32,2) [] = { 0xdeadbe, 0xdeadbe };
+
+
+#define INSN vqshrun_n
+#define TEST_MSG "VQSHRUN_N"
+
+#define FNNAME1(NAME) void exec_ ## NAME (void)
+#define FNNAME(NAME) FNNAME1(NAME)
+
+FNNAME (INSN)
+{
+  /* Basic test: y=vqshrun_n(x,v), then store the result.  */
+#define TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
+  Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N));	\
+  VECT_VAR(vector_res, uint, W2, N) =					\
+    INSN##_##T2##W(VECT_VAR(vector, T1, W, N),				\
+		   V);							\
+  vst1_u##W2(VECT_VAR(result, uint, W2, N),				\
+	     VECT_VAR(vector_res, uint, W2, N));			\
+  CHECK_CUMULATIVE_SAT(TEST_MSG, T1, W, N, EXPECTED_CUMULATIVE_SAT, CMT)
+
+  /* Two auxliary macros are necessary to expand INSN */
+#define TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
+  TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
+
+#define TEST_VQSHRUN_N(T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT) \
+  TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V, EXPECTED_CUMULATIVE_SAT, CMT)
+
+
+  /* vector is twice as large as vector_res.  */
+  DECL_VARIABLE(vector, int, 16, 8);
+  DECL_VARIABLE(vector, int, 32, 4);
+  DECL_VARIABLE(vector, int, 64, 2);
+
+  DECL_VARIABLE(vector_res, uint, 8, 8);
+  DECL_VARIABLE(vector_res, uint, 16, 4);
+  DECL_VARIABLE(vector_res, uint, 32, 2);
+
+  clean_results ();
+
+  /* Fill input vector with negative values, to check saturation on
+     limits.  */
+  VDUP(vector, q, int, s, 16, 8, -2);
+  VDUP(vector, q, int, s, 32, 4, -3);
+  VDUP(vector, q, int, s, 64, 2, -4);
+
+  /* Choose shift amount arbitrarily.  */
+#define CMT " (negative input)"
+  TEST_VQSHRUN_N(int, s, 16, 8, 8, 3, expected_cumulative_sat_neg, CMT);
+  TEST_VQSHRUN_N(int, s, 32, 16, 4, 4, expected_cumulative_sat_neg, CMT);
+  TEST_VQSHRUN_N(int, s, 64, 32, 2, 2, expected_cumulative_sat_neg, CMT);
+
+  CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_neg, CMT);
+  CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_neg, CMT);
+  CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_neg, CMT);
+
+  
+  /* Fill input vector with max value, to check saturation on
+     limits.  */
+  VDUP(vector, q, int, s, 16, 8, 0x7FFF);
+  VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF);
+  VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL);
+
+#undef CMT
+#define CMT " (check cumulative saturation)"
+  TEST_VQSHRUN_N(int, s, 16, 8, 8, 1, expected_cumulative_sat_max_sh1, CMT);
+  TEST_VQSHRUN_N(int, s, 32, 16, 4, 1, expected_cumulative_sat_max_sh1, CMT);
+  TEST_VQSHRUN_N(int, s, 64, 32, 2, 1, expected_cumulative_sat_max_sh1, CMT);
+
+  CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_max_sh1, CMT);
+  CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_max_sh1, CMT);
+  CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_max_sh1, CMT);
+
+  
+  /* Fill input vector with positive values, to check normal case.  */
+  VDUP(vector, q, int, s, 16, 8, 0x1234);
+  VDUP(vector, q, int, s, 32, 4, 0x87654321);
+  VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF);
+
+#undef CMT
+#define CMT ""
+  TEST_VQSHRUN_N(int, s, 16, 8, 8, 6, expected_cumulative_sat, CMT);
+  TEST_VQSHRUN_N(int, s, 32, 16, 4, 7, expected_cumulative_sat, CMT);
+  TEST_VQSHRUN_N(int, s, 64, 32, 2, 8, expected_cumulative_sat, CMT);
+
+  CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected, CMT);
+  CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected, CMT);
+  CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected, CMT);
+}
+
+int main (void)
+{
+  exec_vqshrun_n ();
+  return 0;
+}