expand gtest cpu extension filter

Look for OPT_ because this style is used to manually shard the intrapred
test and it's speed variant.

Change-Id: Ic294148e76a1d152e65a4df0c024280fe93ab6c6

test/test_libaom.cc

@@ -9,6 +9,8 @@
  * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */
 
+#include <string.h>
+
 #include <string>
 
 #include "third_party/googletest/src/googletest/include/gtest/gtest.h"
@@ -30,7 +32,17 @@ static void append_negative_gtest_filter(const char *str) {
   std::string filter = ::testing::FLAGS_gtest_filter;
   // Negative patterns begin with one '-' followed by a ':' separated list.
   if (filter.find('-') == std::string::npos) filter += '-';
-  filter += str;
+  // OPT.* matches TEST() functions
+  // OPT/* matches TEST_P() functions
+  // OPT_* matches tests which have been manually sharded.
+  // We do not match OPT* because of SSE/SSE2 collisions.
+  const char *search_terminators = "./_";
+  for (size_t pos = 0; pos < strlen(search_terminators); ++pos) {
+    filter += ":";
+    filter += str;
+    filter += search_terminators[pos];
+    filter += "*";
+  }
   ::testing::FLAGS_gtest_filter = filter;
 }
 #endif  // ARCH_X86 || ARCH_X86_64
@@ -40,16 +52,14 @@ int main(int argc, char **argv) {
 
 #if ARCH_X86 || ARCH_X86_64
   const int simd_caps = x86_simd_caps();
-  if (!(simd_caps & HAS_MMX)) append_negative_gtest_filter(":MMX.*:MMX/*");
-  if (!(simd_caps & HAS_SSE)) append_negative_gtest_filter(":SSE.*:SSE/*");
-  if (!(simd_caps & HAS_SSE2)) append_negative_gtest_filter(":SSE2.*:SSE2/*");
-  if (!(simd_caps & HAS_SSE3)) append_negative_gtest_filter(":SSE3.*:SSE3/*");
-  if (!(simd_caps & HAS_SSSE3))
-    append_negative_gtest_filter(":SSSE3.*:SSSE3/*");
-  if (!(simd_caps & HAS_SSE4_1))
-    append_negative_gtest_filter(":SSE4_1.*:SSE4_1/*");
-  if (!(simd_caps & HAS_AVX)) append_negative_gtest_filter(":AVX.*:AVX/*");
-  if (!(simd_caps & HAS_AVX2)) append_negative_gtest_filter(":AVX2.*:AVX2/*");
+  if (!(simd_caps & HAS_MMX)) append_negative_gtest_filter("MMX");
+  if (!(simd_caps & HAS_SSE)) append_negative_gtest_filter("SSE");
+  if (!(simd_caps & HAS_SSE2)) append_negative_gtest_filter("SSE2");
+  if (!(simd_caps & HAS_SSE3)) append_negative_gtest_filter("SSE3");
+  if (!(simd_caps & HAS_SSSE3)) append_negative_gtest_filter("SSSE3");
+  if (!(simd_caps & HAS_SSE4_1)) append_negative_gtest_filter("SSE4_1");
+  if (!(simd_caps & HAS_AVX)) append_negative_gtest_filter("AVX");
+  if (!(simd_caps & HAS_AVX2)) append_negative_gtest_filter("AVX2");
 #endif  // ARCH_X86 || ARCH_X86_64
 
 #if !CONFIG_SHARED