1 files changed, 56 insertions, 0 deletions
diff --git a/src/ARMeilleure/Instructions/InstEmitSimdHashHelper.cs b/src/ARMeilleure/Instructions/InstEmitSimdHashHelper.cs
new file mode 100644
index 00000000..23e4948d
--- /dev/null
+++ b/src/ARMeilleure/Instructions/InstEmitSimdHashHelper.cs
@@ -0,0 +1,56 @@
+using ARMeilleure.IntermediateRepresentation;
+using ARMeilleure.Translation;
+using System;
+
+using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
+
+namespace ARMeilleure.Instructions
+{
+    static class InstEmitSimdHashHelper
+    {
+        public static Operand EmitSha256h(ArmEmitterContext context, Operand x, Operand y, Operand w, bool part2)
+        {
+            if (Optimizations.UseSha)
+            {
+                Operand src1 = context.AddIntrinsic(Intrinsic.X86Shufps, y, x, Const(0xbb));
+                Operand src2 = context.AddIntrinsic(Intrinsic.X86Shufps, y, x, Const(0x11));
+                Operand w2 = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, w, w);
+
+                Operand round2 = context.AddIntrinsic(Intrinsic.X86Sha256Rnds2, src1, src2, w);
+                Operand round4 = context.AddIntrinsic(Intrinsic.X86Sha256Rnds2, src2, round2, w2);
+                
+                Operand res = context.AddIntrinsic(Intrinsic.X86Shufps, round4, round2, Const(part2 ? 0x11 : 0xbb));
+                
+                return res;
+            }
+
+            String method = part2 ? nameof(SoftFallback.HashUpper) : nameof(SoftFallback.HashLower);
+            return context.Call(typeof(SoftFallback).GetMethod(method), x, y, w);
+        }
+
+        public static Operand EmitSha256su0(ArmEmitterContext context, Operand x, Operand y)
+        {
+            if (Optimizations.UseSha)
+            {
+                return context.AddIntrinsic(Intrinsic.X86Sha256Msg1, x, y);
+            }
+
+            return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Sha256SchedulePart1)), x, y);
+        }
+
+        public static Operand EmitSha256su1(ArmEmitterContext context, Operand x, Operand y, Operand z)
+        {
+            if (Optimizations.UseSha && Optimizations.UseSsse3)
+            {
+                Operand extr = context.AddIntrinsic(Intrinsic.X86Palignr, z, y, Const(4));
+                Operand tmp = context.AddIntrinsic(Intrinsic.X86Paddd, extr, x);
+
+                Operand res = context.AddIntrinsic(Intrinsic.X86Sha256Msg2, tmp, z);
+
+                return res;
+            }
+
+            return context.Call(typeof(SoftFallback).GetMethod(nameof(SoftFallback.Sha256SchedulePart2)), x, y, z);
+        }
+    }
+}
+\ No newline at end of file