Merge branch 'next' into guile.

Passes distcheck.

* next: (32 commits)
  volk: Fix for popcnt's 64/32-bit issues.
  Using a copy of config.guess and config.sub instead of sym links.
  Including time header to qa files.
  Changed python env variable to more globally usable version.
  gr_uhd: Quick fix for make distcheck failures if UHD is not installed.
  PFB resampler: fix it this way to avoid the signed/unsigned warning.
  PFB resampler: fixes bug where filter could be looking past the number of inputs.
  resampler PFB: Sets relative rate when rate is changed.
  Create method to set rate on pfb_arb_resamp after it has been created. Allow it to be called from GRC.
  volk: fix for running 32-bit OS on 64-bit processor. System is correctly identified as 32-bit and compiles with the correct flags.
  volk: changing the path variables again. This works on my various systems tested. Using abs_ path names failed on Ubuntu 8.04 32-bit.
  volk: May be a hack, but it was required for my 32-bit Fedora 13 to work.
  volk: Removing unnecessary shell script; last commit takes care if its functions.
  volk: Fixing build system to handle making volk_mktables, volk_tables.h, and volk_config.h instead of a standalone shell script.
  volk: readding 16sc_magnitude_32f_sse with fix for SSE hadd_ps error.
  volk: Adding a few more generic-only test cases.
  volk: adding generic QA test for 16sc_magnitude_32f.
  volk: modified the configure scripts to output which architectures it will be building based on the configure tests.
  uhd: update notes in grc blocks for addressing scheme
  volk: Removing erroneous SSE function that actually usese an SSE3 intrin (mm_hadd_ps).
  ...

1 files changed, 62 insertions, 0 deletions

diff --git a/volk/lib/qa_32u_popcnt_aligned16.cc b/volk/lib/qa_32u_popcnt_aligned16.cc
new file mode 100644
index 000000000..618a82a02
--- /dev/null
+++ b/volk/lib/qa_32u_popcnt_aligned16.cc
@@ -0,0 +1,62 @@
+#include <volk/volk_runtime.h>
+#include <volk/volk.h>
+#include <qa_32u_popcnt_aligned16.h>
+#include <volk/volk_32u_popcnt_aligned16.h>
+#include <cstdlib>
+#include <ctime>
+
+//test for sse
+
+#ifndef LV_HAVE_SSE4_2
+
+void qa_32u_popcnt_aligned16::t1() {
+  printf("sse4.2 not available... no test performed\n");
+}
+
+#else
+
+void qa_32u_popcnt_aligned16::t1() {
+  
+  
+  volk_runtime_init();
+
+  volk_environment_init();
+  clock_t start, end;
+  double total;
+
+  const int ITERS = 10000000;
+  uint32_t input0 __attribute__ ((aligned (16)));
+  
+  uint32_t output0 __attribute__ ((aligned (16)));
+  uint32_t output01 __attribute__ ((aligned (16)));
+
+    input0 = ((uint32_t) (rand() - (RAND_MAX/2)));
+    output0 = 0;
+    output01 = 0;
+
+  printf("32u_popcnt_aligned\n");
+
+  start = clock();
+  uint32_t ret = 0;
+  for(int count = 0; count < ITERS; ++count) {
+    volk_32u_popcnt_aligned16_manual(&ret, input0, "generic");
+    output0 += ret;
+  }
+  end = clock();
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("generic_time: %f\n", total);
+  start = clock();
+  ret = 0;
+  for(int count = 0; count < ITERS; ++count) {
+    get_volk_runtime()->volk_32u_popcnt_aligned16(&ret, input0);
+    output01 += ret;
+  }
+  end = clock();
+  total = (double)(end-start)/(double)CLOCKS_PER_SEC;
+  printf("sse4.2_time: %f\n", total);
+
+  
+  CPPUNIT_ASSERT_EQUAL(output0, output01);
+}
+
+#endif