diff --git a/compiler/dex/quick/arm/assemble_arm.cc b/compiler/dex/quick/arm/assemble_arm.cc
index 1c81a5a..b3236ae 100644
--- a/compiler/dex/quick/arm/assemble_arm.cc
+++ b/compiler/dex/quick/arm/assemble_arm.cc
@@ -877,8 +877,7 @@
                  "vmov.f64", "!0S, #0x!1h", 4, kFixupNone),
     ENCODING_MAP(kThumb2Mla,  0xfb000000,
                  kFmtBitBlt, 11, 8, kFmtBitBlt, 19, 16, kFmtBitBlt, 3, 0,
-                 kFmtBitBlt, 15, 12,
-                 IS_QUAD_OP | REG_DEF0 | REG_USE1 | REG_USE2 | REG_USE3,
+                 kFmtBitBlt, 15, 12, IS_QUAD_OP | REG_DEF0_USE123,
                  "mla", "!0C, !1C, !2C, !3C", 4, kFixupNone),
     ENCODING_MAP(kThumb2Umull,  0xfba00000,
                  kFmtBitBlt, 15, 12, kFmtBitBlt, 11, 8, kFmtBitBlt, 19, 16,
@@ -889,10 +888,18 @@
                  kFmtBitBlt, 15, 12, kFmtBitBlt, 19, 16, kFmtBitBlt, 7, 0,
                  kFmtUnused, -1, -1, IS_TERTIARY_OP | REG_DEF0_USE1 | IS_LOAD,
                  "ldrex", "!0C, [!1C, #!2E]", 4, kFixupNone),
+    ENCODING_MAP(kThumb2Ldrexd,      0xe8d0007f,
+                 kFmtBitBlt, 15, 12, kFmtBitBlt, 11, 8, kFmtBitBlt, 19, 16,
+                 kFmtUnused, -1, -1, IS_TERTIARY_OP | REG_DEF01_USE2 | IS_LOAD,
+                 "ldrexd", "!0C, !1C, [!2C]", 4, kFixupNone),
     ENCODING_MAP(kThumb2Strex,       0xe8400000,
                  kFmtBitBlt, 11, 8, kFmtBitBlt, 15, 12, kFmtBitBlt, 19, 16,
                  kFmtBitBlt, 7, 0, IS_QUAD_OP | REG_DEF0_USE12 | IS_STORE,
-                 "strex", "!0C,!1C, [!2C, #!2E]", 4, kFixupNone),
+                 "strex", "!0C, !1C, [!2C, #!2E]", 4, kFixupNone),
+    ENCODING_MAP(kThumb2Strexd,      0xe8c00070,
+                 kFmtBitBlt, 3, 0, kFmtBitBlt, 15, 12, kFmtBitBlt, 11, 8,
+                 kFmtBitBlt, 19, 16, IS_QUAD_OP | REG_DEF0_USE123 | IS_STORE,
+                 "strexd", "!0C, !1C, !2C, [!3C]", 4, kFixupNone),
     ENCODING_MAP(kThumb2Clrex,       0xf3bf8f2f,
                  kFmtUnused, -1, -1, kFmtUnused, -1, -1, kFmtUnused, -1, -1,
                  kFmtUnused, -1, -1, NO_OPERAND,