From 4b8a720c9b4a3ec8b438173f216c9528387e970b Mon Sep 17 00:00:00 2001
From: JosJuice <josjuice@gmail.com>
Date: Sat, 8 Oct 2022 19:49:30 +0200
Subject: [PATCH] Jit64: Remove HandleNaNs's xmm_out parameter

All HandleNaNs does with the xmm_out parameter is emit MOVAPD at the end
if xmm_out != xmm. The caller might as well do that themselves.
---
 Source/Core/Core/PowerPC/Jit64/Jit.h             |  3 +--
 .../Core/PowerPC/Jit64/Jit_FloatingPoint.cpp     | 16 +++++-----------
 Source/Core/Core/PowerPC/Jit64/Jit_Paired.cpp    |  8 ++++----
 3 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/Source/Core/Core/PowerPC/Jit64/Jit.h b/Source/Core/Core/PowerPC/Jit64/Jit.h
index 359a2b53cc..2b4a1592ff 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit.h
+++ b/Source/Core/Core/PowerPC/Jit64/Jit.h
@@ -126,8 +126,7 @@ public:
   void FinalizeSingleResult(Gen::X64Reg output, const Gen::OpArg& input, bool packed = true,
                             bool duplicate = false);
   void FinalizeDoubleResult(Gen::X64Reg output, const Gen::OpArg& input);
-  void HandleNaNs(UGeckoInstruction inst, Gen::X64Reg xmm_out, Gen::X64Reg xmm_in,
-                  Gen::X64Reg clobber);
+  void HandleNaNs(UGeckoInstruction inst, Gen::X64Reg xmm, Gen::X64Reg clobber);
 
   void MultiplyImmediate(u32 imm, int a, int d, bool overflow);
 
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp
index 40999cadcc..17c52c42cf 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit_FloatingPoint.cpp
@@ -92,7 +92,7 @@ void Jit64::FinalizeDoubleResult(X64Reg output, const OpArg& input)
   SetFPRFIfNeeded(input, false);
 }
 
-void Jit64::HandleNaNs(UGeckoInstruction inst, X64Reg xmm_out, X64Reg xmm, X64Reg clobber)
+void Jit64::HandleNaNs(UGeckoInstruction inst, X64Reg xmm, X64Reg clobber)
 {
   //                      | PowerPC  | x86
   // ---------------------+----------+---------
@@ -103,11 +103,7 @@ void Jit64::HandleNaNs(UGeckoInstruction inst, X64Reg xmm_out, X64Reg xmm, X64Re
   // to be positive, so we'll have to handle them manually.
 
   if (!m_accurate_nans)
-  {
-    if (xmm_out != xmm)
-      MOVAPD(xmm_out, R(xmm));
     return;
-  }
 
   ASSERT(xmm != clobber);
 
@@ -200,8 +196,6 @@ void Jit64::HandleNaNs(UGeckoInstruction inst, X64Reg xmm_out, X64Reg xmm, X64Re
       SetJumpTarget(done);
     }
   }
-  if (xmm_out != xmm)
-    MOVAPD(xmm_out, R(xmm));
 }
 
 void Jit64::fp_arith(UGeckoInstruction inst)
@@ -259,11 +253,11 @@ void Jit64::fp_arith(UGeckoInstruction inst)
       avx_op(avxOp, sseOp, dest, Rop1, Rop2, packed, reversible);
     }
 
-    HandleNaNs(inst, Rd, dest, XMM0);
+    HandleNaNs(inst, dest, XMM0);
     if (single)
-      FinalizeSingleResult(Rd, Rd, packed, true);
+      FinalizeSingleResult(Rd, R(dest), packed, true);
     else
-      FinalizeDoubleResult(Rd, Rd);
+      FinalizeDoubleResult(Rd, R(dest));
   };
 
   switch (inst.SUBOP5)
@@ -482,7 +476,7 @@ void Jit64::fmaddXX(UGeckoInstruction inst)
     result_xmm = Rd;
   }
 
-  HandleNaNs(inst, result_xmm, result_xmm, XMM0);
+  HandleNaNs(inst, result_xmm, XMM0);
 
   if (single)
     FinalizeSingleResult(Rd, R(result_xmm), packed, true);
diff --git a/Source/Core/Core/PowerPC/Jit64/Jit_Paired.cpp b/Source/Core/Core/PowerPC/Jit64/Jit_Paired.cpp
index f0b525d323..74ae5ba584 100644
--- a/Source/Core/Core/PowerPC/Jit64/Jit_Paired.cpp
+++ b/Source/Core/Core/PowerPC/Jit64/Jit_Paired.cpp
@@ -77,8 +77,8 @@ void Jit64::ps_sum(UGeckoInstruction inst)
   default:
     PanicAlertFmt("ps_sum WTF!!!");
   }
-  HandleNaNs(inst, Rd, tmp, tmp == XMM1 ? XMM0 : XMM1);
-  FinalizeSingleResult(Rd, Rd);
+  HandleNaNs(inst, tmp, tmp == XMM1 ? XMM0 : XMM1);
+  FinalizeSingleResult(Rd, R(tmp));
 }
 
 void Jit64::ps_muls(UGeckoInstruction inst)
@@ -112,8 +112,8 @@ void Jit64::ps_muls(UGeckoInstruction inst)
   if (round_input)
     Force25BitPrecision(XMM1, R(XMM1), XMM0);
   MULPD(XMM1, Ra);
-  HandleNaNs(inst, Rd, XMM1, XMM0);
-  FinalizeSingleResult(Rd, Rd);
+  HandleNaNs(inst, XMM1, XMM0);
+  FinalizeSingleResult(Rd, R(XMM1));
 }
 
 void Jit64::ps_mergeXX(UGeckoInstruction inst)