From 9ee23f4273efed8d6378f6ad8e63c65e30a17139 Mon Sep 17 00:00:00 2001
From: Scott Wakeling <scott.wakeling@linaro.org>
Date: Thu, 23 Jul 2015 10:44:35 +0100
Subject: ARM/ARM64: Intrinsics - numberOfTrailingZeros, rotateLeft,
 rotateRight

Change-Id: I2a07c279756ee804fb7c129416bdc4a3962e93ed
---
 compiler/utils/arm/assembler_thumb2.cc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'compiler/utils/arm/assembler_thumb2.cc')

diff --git a/compiler/utils/arm/assembler_thumb2.cc b/compiler/utils/arm/assembler_thumb2.cc
index 90ed10c498..b76068b9d5 100644
--- a/compiler/utils/arm/assembler_thumb2.cc
+++ b/compiler/utils/arm/assembler_thumb2.cc
@@ -2426,6 +2426,25 @@ void Thumb2Assembler::movt(Register rd, uint16_t imm16, Condition cond) {
 }
 
 
+void Thumb2Assembler::rbit(Register rd, Register rm, Condition cond) {
+  CHECK_NE(rd, kNoRegister);
+  CHECK_NE(rm, kNoRegister);
+  CheckCondition(cond);
+  CHECK_NE(rd, PC);
+  CHECK_NE(rm, PC);
+  CHECK_NE(rd, SP);
+  CHECK_NE(rm, SP);
+  int32_t encoding = B31 | B30 | B29 | B28 | B27 |
+      B25 | B23 | B20 |
+      static_cast<uint32_t>(rm) << 16 |
+      0xf << 12 |
+      static_cast<uint32_t>(rd) << 8 |
+      B7 | B5 |
+      static_cast<uint32_t>(rm);
+  Emit32(encoding);
+}
+
+
 void Thumb2Assembler::ldrex(Register rt, Register rn, uint16_t imm, Condition cond) {
   CHECK_NE(rn, kNoRegister);
   CHECK_NE(rt, kNoRegister);
-- 
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