AArch64: Enable LONG_* and INT_* opcodes.

This patch fixes some of the issues with LONG and INT opcodes. The patch
has been tested and passes all the dalvik tests except for 018 and 107.

Change-Id: Idd1923ed935ee8236ab0c7e5fa969eaefeea8708
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
diff --git a/compiler/dex/quick/arm64/assemble_arm64.cc b/compiler/dex/quick/arm64/assemble_arm64.cc
index 656f8fd..4a0c055 100644
--- a/compiler/dex/quick/arm64/assemble_arm64.cc
+++ b/compiler/dex/quick/arm64/assemble_arm64.cc
@@ -422,6 +422,10 @@
                  kFmtRegR, 4, 0, kFmtRegR, 9, 5, kFmtRegR, 20, 16,
                  kFmtUnused, -1, -1, IS_TERTIARY_OP | REG_DEF0_USE12,
                  "mul", "!0r, !1r, !2r", kFixupNone),
+    ENCODING_MAP(WIDE(kA64Msub4rrrr), SF_VARIANTS(0x1b008000),
+                 kFmtRegR, 4, 0, kFmtRegR, 9, 5, kFmtRegR, 14, 10,
+                 kFmtRegR, 20, 16, IS_QUAD_OP | REG_DEF0_USE123,
+                 "msub", "!0r, !1r, !3r, !2r", kFixupNone),
     ENCODING_MAP(WIDE(kA64Neg3rro), SF_VARIANTS(0x4b0003e0),
                  kFmtRegR, 4, 0, kFmtRegR, 20, 16, kFmtShift, -1, -1,
                  kFmtUnused, -1, -1, IS_TERTIARY_OP | REG_DEF0_USE1,