Follow-up CL after hard float changes.

Addressing comments from Zheng Xu.

Change-Id: I8c599cdfab03373e82a1b90b711005c490bc6ca0
diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 28ff1cf..7699bf1 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -115,8 +115,8 @@
   return -1;
 }
 
-size_t CodeGenerator::FindTwoFreeConsecutiveEntries(bool* array, size_t length) {
-  for (size_t i = 0; i < length - 1; ++i) {
+size_t CodeGenerator::FindTwoFreeConsecutiveAlignedEntries(bool* array, size_t length) {
+  for (size_t i = 0; i < length - 1; i += 2) {
     if (!array[i] && !array[i + 1]) {
       array[i] = true;
       array[i + 1] = true;