[x64] Load int32 constants with movl instead of movq to avoid sign extension.

test/cctest/compiler/test-run-machops.cc

Index: test/cctest/compiler/test-run-machops.cc
diff --git a/test/cctest/compiler/test-run-machops.cc b/test/cctest/compiler/test-run-machops.cc
index a8031a257079eb8c10c14ba3c54b9c5ff5d65c7c..dfa763c74fe056af13d89c8ef81d5b0b9959fd9c 100644
--- a/test/cctest/compiler/test-run-machops.cc
+++ b/test/cctest/compiler/test-run-machops.cc
@@ -1709,7 +1709,6 @@ TEST(RunInt32SubP) {
   }
 }
 
-
 TEST(RunInt32SubImm) {
   {
     FOR_UINT32_INPUTS(i) {
@@ -1733,6 +1732,11 @@ TEST(RunInt32SubImm) {
   }
 }
 
+TEST(RunInt32SubImm2) {
+  BufferedRawMachineAssemblerTester<int32_t> r;
+  r.Return(r.Int32Sub(r.Int32Constant(-1), r.Int32Constant(0)));
+  CHECK_EQ(-1, r.Call());
+}
 
 TEST(RunInt32SubAndWord32SarP) {
   {