README change

1 files changed, 106 insertions, 0 deletions

diff --git a/volk/lib/qa_16s_branch_4_state_8_aligned16.cc b/volk/lib/qa_16s_branch_4_state_8_aligned16.cc
new file mode 100644
index 000000000..5a58569a1
--- /dev/null
+++ b/volk/lib/qa_16s_branch_4_state_8_aligned16.cc
@@ -0,0 +1,106 @@
+#include <volk/volk.h>
+#include <qa_16s_branch_4_state_8_aligned16.h>
+#include <cstdlib>
+#include <ctime>
+
+//test for ssse3
+
+#ifndef LV_HAVE_SSSE3
+
+void qa_16s_branch_4_state_8_aligned16::t1() {
+  printf("ssse3 not available... no test performed\n");
+}
+
+#else
+
+void qa_16s_branch_4_state_8_aligned16::t1() {
+  const int num_iters = 1000000;
+  const int vlen = 32;
+
+  static char permute0[16]__attribute__((aligned(16))) = {0x0e, 0x0f, 0x0a, 0x0b, 0x04, 0x05, 0x00, 0x01, 0x0c, 0x0d, 0x08, 0x09, 0x06, 0x07, 0x02, 0x03};
+  static char permute1[16]__attribute__((aligned(16))) = {0x0c, 0x0d, 0x08, 0x09, 0x06, 0x07, 0x02, 0x03, 0x0e, 0x0f, 0x0a, 0x0b, 0x04, 0x05, 0x00, 0x01};
+  static char permute2[16]__attribute__((aligned(16))) = {0x02, 0x03, 0x06, 0x07, 0x08, 0x09, 0x0c, 0x0d, 0x00, 0x01, 0x04, 0x05, 0x0a, 0x0b, 0x0e, 0x0f};
+  static char permute3[16]__attribute__((aligned(16))) = {0x00, 0x01, 0x04, 0x05, 0x0a, 0x0b, 0x0e, 0x0f, 0x02, 0x03, 0x06, 0x07, 0x08, 0x09, 0x0c, 0x0d};
+  static char* permuters[4] = {permute0, permute1, permute2, permute3};
+
+  unsigned int num_bytes = vlen << 1;
+
+  volk_environment_init();
+  clock_t start, end;
+  double total;
+
+  __VOLK_ATTR_ALIGNED(16) short target[vlen];
+  __VOLK_ATTR_ALIGNED(16) short target2[vlen];
+  __VOLK_ATTR_ALIGNED(16) short target3[vlen];
+
+  __VOLK_ATTR_ALIGNED(16) short src0[vlen];
+  __VOLK_ATTR_ALIGNED(16) short permute_indexes[vlen] =  {
+7, 5, 2, 0, 6, 4, 3, 1, 6, 4, 3, 1, 7, 5, 2, 0, 1, 3, 4, 6, 0, 2, 5, 7, 0, 2, 5, 7, 1, 3, 4, 6 };
+  __VOLK_ATTR_ALIGNED(16) short cntl0[vlen] = {
+    0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 };
+  __VOLK_ATTR_ALIGNED(16) short cntl1[vlen] = {
+    0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 };
+  __VOLK_ATTR_ALIGNED(16) short cntl2[vlen] = {
+    0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000 };
+  __VOLK_ATTR_ALIGNED(16) short cntl3[vlen] =  {
+    0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0x0000, 0x0000, 0xffff, 0xffff, 0x0000, 0x0000, 0xffff, 0xffff };
+  __VOLK_ATTR_ALIGNED(16) short scalars[4] = {1, 2, 3, 4};
+
+
+
+  for(int i = 0; i < vlen; ++i) {
+    src0[i] = i;
+
+  }
+
+
+  printf("16s_branch_4_state_8_aligned\n");
+
+
+  start = clock();
+  for(int i = 0; i < num_iters; ++i) {
+    volk_16s_permute_and_scalar_add_aligned16_manual(target, src0, permute_indexes, cntl0, cntl1, cntl2, cntl3, scalars, num_bytes, "sse2");
+  }
+  end = clock();
+
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+
+  printf("permute_and_scalar_add_time: %f\n", total);
+
+
+
+  start = clock();
+  for(int i = 0; i < num_iters; ++i) {
+    volk_16s_branch_4_state_8_aligned16_manual(target2, src0, permuters, cntl2, cntl3, scalars, "ssse3");
+  }
+  end = clock();
+
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+
+  printf("branch_4_state_8_time, ssse3: %f\n", total);
+
+  start = clock();
+  for(int i = 0; i < num_iters; ++i) {
+    volk_16s_branch_4_state_8_aligned16_manual(target3, src0, permuters, cntl2, cntl3, scalars, "generic");
+  }
+  end = clock();
+
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+
+  printf("permute_and_scalar_add_time, generic: %f\n", total);
+
+
+
+  for(int i = 0; i < vlen; ++i) {
+    printf("psa... %d, b4s8... %d\n", target[i], target3[i]);
+  }
+
+  for(int i = 0; i < vlen; ++i) {
+
+    CPPUNIT_ASSERT(target[i] == target2[i]);
+    CPPUNIT_ASSERT(target[i] == target3[i]);
+  }
+}
+
+
+#endif