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diff --git a/target-arm/it_helper.h b/target-arm/it_helper.h
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+/* Copyright (C) 2007-2010 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+
+/*
+ * Contains implementation of helper routines for IT block support.
+ */
+
+#ifndef QEMU_TARGET_ARM_IT_HELPER_H
+#define QEMU_TARGET_ARM_IT_HELPER_H
+
+/* Gets condition bits from ITSTATE.
+ * Return:
+ *  ITSTATE condition bits in the low 4 bits of the returned value.
+ */
+static inline uint8_t
+itstate_cond(uint8_t itstate)
+{
+    return (itstate >> 4) & 0xf;
+}
+
+/* Checks if ITSTATE defines the last instruction in an IT block.
+ * Param:
+ *  itstate - ITSTATE for an instruction in an IT block.
+ * Return:
+ *  boolean: 1 if an instruction is the last instruction in its IT block,
+ *  or zero if there are more instruction in the IT block.
+ */
+static inline int
+itstate_is_last_it_insn(uint8_t itstate)
+{
+    return (itstate & 0x7) == 0;
+}
+
+/* Checks if ITSTATE suggests that an IT block instruction is being translated.
+ * Return:
+ *  boolean: 1 if an IT block instruction is being translated, or zero if
+ *  a "normal" instruction is being translated.
+ */
+static inline int
+itstate_is_in_it_block(uint8_t itstate)
+{
+    return (itstate & 0xff) != 0;
+}
+
+/* Advances ITSTATE to the next instruction in an IT block.
+ * Param:
+ *  itstate - ITSTATE of the currently executing instruction.
+ * Retunn:
+ *  ITSTATE for the next instruction in an IT block, or zero is currently
+ *  executing instruction was the last IT block instruction.
+ */
+static inline uint8_t
+itstate_advance(uint8_t itstate)
+{
+    if (itstate_is_last_it_insn(itstate)) {
+        return 0;
+    } else {
+        return (itstate & 0xe0) | ((itstate & 0xf) << 1);
+    }
+}
+
+/* Checks if given THUMB instruction is an IT instruction.
+ * Param:
+ *  insn - THUMB instruction to check.
+ * Return:
+ *  boolean: 1 if instruction is IT instruction, or zero otherwise.
+ */
+static inline int
+is_it_insn(uint16_t insn)
+{
+    return (insn & 0xff00) == 0xbf00 && (insn & 0x000f) != 0;
+}
+
+#endif  // QEMU_TARGET_ARM_IT_HELPER_H