clang-format fixes

Bug: None
Test: lint passes
Change-Id: I1fd40d3506bab1f4f9100902f633a9c9e7b96337
Reviewed-on: https://chromium-review.googlesource.com/745038Reviewed-by: Frank Barchard <fbarchard@google.com>

source/compare_gcc.cc

@@ -34,6 +34,7 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
       "xor        %%r13,%%r13                    \n"
       "xor        %%r12,%%r12                    \n"
 
+      // Process 32 bytes per loop.
       LABELALIGN
       "1:                                        \n"
       "mov        (%0),%%rax                     \n"
@@ -56,7 +57,6 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
       "add        %%rsi,%%r12                    \n"
       "sub        $0x20,%2                       \n"
       "jg         1b                             \n"
-
       "add        %%r15, %%r14                   \n"
       "add        %%r13, %%r12                   \n"
       "add        %%r14, %%r12                   \n"
@@ -76,7 +76,9 @@ uint32 HammingDistance_SSE42(const uint8* src_a,
                              int count) {
   uint32 diff = 0u;
 
-  asm volatile(LABELALIGN
+  asm volatile(
+      // Process 16 bytes per loop.
+      LABELALIGN
       "1:                                        \n"
       "mov        (%0),%%eax                     \n"
       "mov        0x4(%0),%%edx                  \n"

unit_test/compare_test.cc

@@ -256,7 +256,6 @@ TEST_F(LibYUVCompareTest, BenchmarkHammingDistance_Opt) {
 #else
     h1 = HammingDistance_C(src_a, src_b, kMaxWidth);
 #endif
-
   }
   EXPECT_EQ(h0, h1);
 
@@ -339,7 +338,7 @@ static const int kMaxOptCount = (1 << (32 - 3)) - 64;  // 536870848
 
 TEST_F(LibYUVCompareTest, TestHammingDistance_Opt) {
   uint32 h1 = 0;
-  const int kMaxWidth =benchmark_width_ * benchmark_height_;
+  const int kMaxWidth = benchmark_width_ * benchmark_height_;
   align_buffer_page_end(src_a, kMaxWidth);
   align_buffer_page_end(src_b, kMaxWidth);
   memset(src_a, 255u, kMaxWidth);
@@ -383,7 +382,7 @@ TEST_F(LibYUVCompareTest, TestHammingDistance_Opt) {
   // A large count will cause the low level to potentially overflow so the
   // result can not be expected to be correct.
   // TODO(fbarchard): Consider expecting the low 16 bits to match.
-  if (kMaxWidth<= kMaxOptCount) {
+  if (kMaxWidth <= kMaxOptCount) {
     EXPECT_EQ(kMaxWidth * 8U, h1);
   } else {
     if (kMaxWidth * 8ULL != static_cast<uint64>(h1)) {