JitRegCache: Add RegistersInUse

Source/Core/Core/PowerPC/Jit64/Jit.cpp

@@ -967,15 +967,8 @@ BitSet8 Jit64::ComputeStaticGQRs(const PPCAnalyst::CodeBlock& cb) const
 
 BitSet32 Jit64::CallerSavedRegistersInUse() const
 {
-  BitSet32 result;
+  BitSet32 in_use = gpr.RegistersInUse() | (fpr.RegistersInUse() << 16);
-  for (size_t i = 0; i < NUM_XREGS; i++)
+  return in_use & ABI_ALL_CALLER_SAVED;
-  {
-    if (!gpr.IsFreeX(i))
-      result[i] = true;
-    if (!fpr.IsFreeX(i))
-      result[16 + i] = true;
-  }
-  return result & ABI_ALL_CALLER_SAVED;
 }
 
 void Jit64::EnableBlockLink()

Source/Core/Core/PowerPC/Jit64/RegCache/JitRegCache.cpp

@@ -677,6 +677,17 @@ void RegCache::PreloadRegisters(BitSet32 to_preload)
   }
 }
 
+BitSet32 RegCache::RegistersInUse() const
+{
+  BitSet32 result;
+  for (size_t i = 0; i < m_xregs.size(); i++)
+  {
+    if (!m_xregs[i].IsFree())
+      result[i] = true;
+  }
+  return result;
+}
+
 void RegCache::NewLock(preg_t preg)
 {
   m_regs[preg].Lock();

Source/Core/Core/PowerPC/Jit64/RegCache/JitRegCache.h

@@ -247,6 +247,7 @@ public:
   bool IsAllUnlocked() const;
 
   void PreloadRegisters(BitSet32 regs);
+  BitSet32 RegistersInUse() const;
 
 protected:
   friend class RCOpArg;