Fix a MOV instruction in Optimizing's x86-64 code generator.
Use `movl' instead of `movw' to store a 32-bit immediate
(integer or reference) into a field.
Also fix art::Location::RegisterOrInt32LongConstant to
properly handle non-long constants.
Change-Id: I34c6ec8eaa1632822a31969f87c9c2d6c5b96326
diff --git a/test/521-regression-integer-field-set/info.txt b/test/521-regression-integer-field-set/info.txt
new file mode 100644
index 0000000..62f7e3d
--- /dev/null
+++ b/test/521-regression-integer-field-set/info.txt
@@ -0,0 +1,3 @@
+Regression test for Optimizing's x86-64 code generator, where moving a
+32-bit immediate (integer or reference) into a field used to generate
+a `movw` instruction instead of a `movl` instruction.