From e80c502023d332fb60866eb378e715ab3f158b72 Mon Sep 17 00:00:00 2001
From: Claudio Fontana <claudio.fontana@linaro.org>
Date: Tue, 17 Dec 2013 19:42:35 +0000
Subject: target-arm: A64: add support for 1-src CLS insn

this patch adds support for the CLS instruction.

Signed-off-by: Claudio Fontana <claudio.fontana@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
---
 target-arm/helper-a64.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'target-arm/helper-a64.c')

diff --git a/target-arm/helper-a64.c b/target-arm/helper-a64.c
index cccaac6230..d3f706754f 100644
--- a/target-arm/helper-a64.c
+++ b/target-arm/helper-a64.c
@@ -50,6 +50,16 @@ uint64_t HELPER(clz64)(uint64_t x)
     return clz64(x);
 }
 
+uint64_t HELPER(cls64)(uint64_t x)
+{
+    return clrsb64(x);
+}
+
+uint32_t HELPER(cls32)(uint32_t x)
+{
+    return clrsb32(x);
+}
+
 uint64_t HELPER(rbit64)(uint64_t x)
 {
     /* assign the correct byte position */
-- 
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