Jit: Move srwx to ConstantPropagation

Source/Core/Core/PowerPC/Jit64/Jit_Integer.cpp

@@ -2204,12 +2204,7 @@ void Jit64::srwx(UGeckoInstruction inst)
   int b = inst.RB;
   int s = inst.RS;
 
-  if (gpr.IsImm(b, s))
+  if (gpr.IsImm(b))
-  {
-    u32 amount = gpr.Imm32(b);
-    gpr.SetImmediate32(a, (amount & 0x20) ? 0 : (gpr.Imm32(s) >> (amount & 0x1f)));
-  }
-  else if (gpr.IsImm(b))
   {
     u32 amount = gpr.Imm32(b);
     if (amount & 0x20)

Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp

@@ -1836,15 +1836,7 @@ void JitArm64::srwx(UGeckoInstruction inst)
 
   int a = inst.RA, b = inst.RB, s = inst.RS;
 
-  if (gpr.IsImm(b) && gpr.IsImm(s))
+  if (gpr.IsImm(b))
-  {
-    u32 i = gpr.GetImm(s), amount = gpr.GetImm(b);
-    gpr.SetImmediate(a, (amount & 0x20) ? 0 : i >> (amount & 0x1F));
-
-    if (inst.Rc)
-      ComputeRC0(gpr.GetImm(a));
-  }
-  else if (gpr.IsImm(b))
   {
     u32 amount = gpr.GetImm(b);
     if (amount & 0x20)

Source/Core/Core/PowerPC/JitCommon/ConstantPropagation.cpp

@@ -398,6 +398,9 @@ ConstantPropagationResult ConstantPropagation::EvaluateTable31SB(UGeckoInstructi
   case 476:  // nandx
     a = ~(s & b);
     break;
+  case 536:  // srwx
+    a = u32(u64(s) >> (b & 0x3f));
+    break;
   default:
     return {};
   }
@@ -413,7 +416,8 @@ ConstantPropagation::EvaluateTable31SBOneRegisterKnown(UGeckoInstruction inst, u
 
   switch (inst.SUBOP10)
   {
-  case 24:  // slwx
+  case 24:   // slwx
+  case 536:  // srwx
     if (!known_reg_is_b && value == 0)
       a = 0;
     else if (known_reg_is_b && (value & 0x20))