From 567ea726e173040ae931a37bc85fd6cd92b69363 Mon Sep 17 00:00:00 2001
From: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
Date: Mon, 7 Dec 2020 10:37:07 +0100
Subject: Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr)
 modes (fast paths). (#1630)

* Add support for guest Fz (Fpcr) mode through host Ftz and Daz (Mxcsr) modes (fast paths).

* Ptc.InternalVersion = 1630

* Nits.

* Address comments.

* Update Ptc.cs

* Address comment.
---
 ARMeilleure/CodeGen/X86/PreAllocator.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'ARMeilleure/CodeGen/X86/PreAllocator.cs')

diff --git a/ARMeilleure/CodeGen/X86/PreAllocator.cs b/ARMeilleure/CodeGen/X86/PreAllocator.cs
index 3aaf315a..4969fa43 100644
--- a/ARMeilleure/CodeGen/X86/PreAllocator.cs
+++ b/ARMeilleure/CodeGen/X86/PreAllocator.cs
@@ -114,6 +114,16 @@ namespace ARMeilleure.CodeGen.X86
                                 node = HandleVectorInsert8(block.Operations, node, operation);
                             }
                             break;
+
+                        case Instruction.Extended:
+                            IntrinsicOperation intrinOp = (IntrinsicOperation)operation;
+
+                            if (intrinOp.Intrinsic == Intrinsic.X86Mxcsrmb || intrinOp.Intrinsic == Intrinsic.X86Mxcsrub)
+                            {
+                                int stackOffset = stackAlloc.Allocate(OperandType.I32);
+                                operation.SetSources(new Operand[] { Const(stackOffset), operation.GetSource(0) });
+                            }
+                            break;
                     }
                 }
             }
-- 
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