From 221270db90300a084007d154867be89bb5fddedf Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Sun, 5 Aug 2018 02:54:21 -0300
Subject: More accurate impl of FMINNM/FMAXNM, add vector variants (#296)

* More accurate impl of FMINNM/FMAXNM, add vector variants

* Optimize for the 0 case when op1 != op2

* Address PR feedback
---
 ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs | 90 +++++++---------------
 1 file changed, 29 insertions(+), 61 deletions(-)

(limited to 'ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs')

diff --git a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
index 6772fe83..559811d9 100644
--- a/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
+++ b/ChocolArm64/Instruction/AInstEmitSimdArithmetic.cs
@@ -335,98 +335,66 @@ namespace ChocolArm64.Instruction
 
         public static void Fmax_S(AILEmitterCtx Context)
         {
-            AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
-
             EmitScalarBinaryOpF(Context, () =>
             {
-                if (Op.Size == 0)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.MaxF));
-                }
-                else if (Op.Size == 1)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.Max));
-                }
-                else
-                {
-                    throw new InvalidOperationException();
-                }
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.Max));
             });
         }
 
         public static void Fmax_V(AILEmitterCtx Context)
         {
-            AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
+            EmitVectorBinaryOpF(Context, () =>
+            {
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.Max));
+            });
+        }
 
+        public static void Fmaxnm_S(AILEmitterCtx Context)
+        {
+            EmitScalarBinaryOpF(Context, () =>
+            {
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.MaxNum));
+            });
+        }
+
+        public static void Fmaxnm_V(AILEmitterCtx Context)
+        {
             EmitVectorBinaryOpF(Context, () =>
             {
-                if (Op.Size == 0)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.MaxF));
-                }
-                else if (Op.Size == 1)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.Max));
-                }
-                else
-                {
-                    throw new InvalidOperationException();
-                }
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.MaxNum));
             });
         }
 
         public static void Fmin_S(AILEmitterCtx Context)
         {
-            AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
-
             EmitScalarBinaryOpF(Context, () =>
             {
-                if (Op.Size == 0)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.MinF));
-                }
-                else if (Op.Size == 1)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.Min));
-                }
-                else
-                {
-                    throw new InvalidOperationException();
-                }
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.Min));
             });
         }
 
         public static void Fmin_V(AILEmitterCtx Context)
         {
-            AOpCodeSimd Op = (AOpCodeSimd)Context.CurrOp;
-
-            int SizeF = Op.Size & 1;
-
             EmitVectorBinaryOpF(Context, () =>
             {
-                if (SizeF == 0)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.MinF));
-                }
-                else if (SizeF == 1)
-                {
-                    AVectorHelper.EmitCall(Context, nameof(AVectorHelper.Min));
-                }
-                else
-                {
-                    throw new InvalidOperationException();
-                }
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.Min));
             });
         }
 
-        public static void Fmaxnm_S(AILEmitterCtx Context)
+        public static void Fminnm_S(AILEmitterCtx Context)
         {
-            Fmax_S(Context);
+            EmitScalarBinaryOpF(Context, () =>
+            {
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.MinNum));
+            });
         }
 
-        public static void Fminnm_S(AILEmitterCtx Context)
+        public static void Fminnm_V(AILEmitterCtx Context)
         {
-            Fmin_S(Context);
+            EmitVectorBinaryOpF(Context, () =>
+            {
+                EmitBinarySoftFloatCall(Context, nameof(ASoftFloat.MinNum));
+            });
         }
 
         public static void Fmla_Se(AILEmitterCtx Context)
-- 
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