MIPS32r2: Fix Chromium runtime crash

tests/MemsetTest.cpp

Index: tests/MemsetTest.cpp
diff --git a/tests/MemsetTest.cpp b/tests/MemsetTest.cpp
index e1f844e05c5c92a25abcf67362b6e3edf318473f..fb5a337738802bba6cccac70b07aedafb8db0d77 100644
--- a/tests/MemsetTest.cpp
+++ b/tests/MemsetTest.cpp
@@ -6,6 +6,7 @@
  */
 
 #include "SkChunkAlloc.h"
+#include "SkRandom.h"
 #include "SkUtils.h"
 #include "Test.h"
 
@@ -23,6 +24,14 @@ static void* simple_alloc(skiatest::Reporter* reporter, SkChunkAlloc* alloc, siz
     return ptr;
 }
 
+static void check_alloc_alignment(skiatest::Reporter* reporter,
+                                  SkChunkAlloc* alloc, size_t size) {
+    const size_t kAlignment = 8;
+    void* ptr = alloc->allocThrow(size);
+    REPORTER_ASSERT(reporter, ptr != nullptr);
+    REPORTER_ASSERT(reporter, (size_t)ptr % kAlignment == 0);
+}
+
 static void test_chunkalloc(skiatest::Reporter* reporter) {
     static const size_t kMin = 1024;
     SkChunkAlloc alloc(kMin);
@@ -76,6 +85,14 @@ static void test_chunkalloc(skiatest::Reporter* reporter) {
     REPORTER_ASSERT(reporter, freed == kMin);
     check_alloc(reporter, alloc, 2*kMin, size, 2);
     REPORTER_ASSERT(reporter, !alloc.contains(ptr));
+
+    //------------------------------------------------------------------------
+    // test the alignment
+    alloc.reset();
+    SkRandom rand;
+    for (int i = 0; i < 1000; i++) {
+        check_alloc_alignment(reporter, &alloc, rand.nextU16());
+    }
 }
 
 ///////////////////////////////////////////////////////////////////////////////