From 9bda7b469946dc44e4ee625ea69494da215c57aa Mon Sep 17 00:00:00 2001
From: mageven <62494521+mageven@users.noreply.github.com>
Date: Mon, 22 Feb 2021 20:56:13 +0530
Subject: Implement VCNT instruction (#1963)

* Implement VCNT based on AArch64 CNT

Add tests

* Update PTC version

* Address LDj's comments

* Explicit size in encoding
* Tighter tests
* Replace SoftFallback with IR helper

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

* Reduce one BitwiseAnd from IR fallback

Based on popcount64b from https://en.wikipedia.org/wiki/Hamming_weight#Efficient_implementation

* Rename parameter and add assert

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>

Co-authored-by: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
---
 ARMeilleure/Instructions/InstEmitSimdArithmetic.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ARMeilleure/Instructions/InstEmitSimdArithmetic.cs')

diff --git a/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs b/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs
index deaa6f5a..9c359882 100644
--- a/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs
+++ b/ARMeilleure/Instructions/InstEmitSimdArithmetic.cs
@@ -289,7 +289,7 @@ namespace ARMeilleure.Instructions
                 }
                 else
                 {
-                    de = context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.CountSetBits8)), ne);
+                    de = EmitCountSetBits8(context, ne);
                 }
 
                 res = EmitVectorInsert(context, res, de, index, 0);
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