整理初版

third_party/asmjit/x86/x86rapass_p.h

@@ -0,0 +1,94 @@
+// This file is part of AsmJit project <https://asmjit.com>
+//
+// See asmjit.h or LICENSE.md for license and copyright information
+// SPDX-License-Identifier: Zlib
+
+#ifndef ASMJIT_X86_X86RAPASS_P_H_INCLUDED
+#define ASMJIT_X86_X86RAPASS_P_H_INCLUDED
+
+#include "../core/api-config.h"
+#ifndef ASMJIT_NO_COMPILER
+
+#include "../core/compiler.h"
+#include "../core/rabuilders_p.h"
+#include "../core/rapass_p.h"
+#include "../x86/x86assembler.h"
+#include "../x86/x86compiler.h"
+#include "../x86/x86emithelper_p.h"
+
+ASMJIT_BEGIN_SUB_NAMESPACE(x86)
+
+//! \cond INTERNAL
+//! \addtogroup asmjit_x86
+//! \{
+
+//! X86 register allocation pass.
+//!
+//! Takes care of generating function prologs and epilogs, and also performs register allocation.
+class X86RAPass : public BaseRAPass {
+public:
+  ASMJIT_NONCOPYABLE(X86RAPass)
+  typedef BaseRAPass Base;
+
+  EmitHelper _emitHelper;
+
+  //! \name Construction & Destruction
+  //! \{
+
+  X86RAPass() noexcept;
+  virtual ~X86RAPass() noexcept;
+
+  //! \}
+
+  //! \name Accessors
+  //! \{
+
+  //! Returns the compiler casted to `x86::Compiler`.
+  inline Compiler* cc() const noexcept { return static_cast<Compiler*>(_cb); }
+
+  //! Returns emit helper.
+  inline EmitHelper* emitHelper() noexcept { return &_emitHelper; }
+
+  inline bool avxEnabled() const noexcept { return _emitHelper._avxEnabled; }
+  inline bool avx512Enabled() const noexcept { return _emitHelper._avx512Enabled; }
+
+  //! \}
+
+  //! \name Utilities
+  //! \{
+
+  inline uint32_t choose(uint32_t sseInstId, uint32_t avxInstId) noexcept {
+    return avxEnabled() ? avxInstId : sseInstId;
+  }
+
+  //! \}
+
+  //! \name Interface
+  //! \{
+
+  void onInit() noexcept override;
+  void onDone() noexcept override;
+
+  Error buildCFG() noexcept override;
+
+  Error _rewrite(BaseNode* first, BaseNode* stop) noexcept override;
+
+  Error emitMove(uint32_t workId, uint32_t dstPhysId, uint32_t srcPhysId) noexcept override;
+  Error emitSwap(uint32_t aWorkId, uint32_t aPhysId, uint32_t bWorkId, uint32_t bPhysId) noexcept override;
+
+  Error emitLoad(uint32_t workId, uint32_t dstPhysId) noexcept override;
+  Error emitSave(uint32_t workId, uint32_t srcPhysId) noexcept override;
+
+  Error emitJump(const Label& label) noexcept override;
+  Error emitPreCall(InvokeNode* invokeNode) noexcept override;
+
+  //! \}
+};
+
+//! \}
+//! \endcond
+
+ASMJIT_END_SUB_NAMESPACE
+
+#endif // !ASMJIT_NO_COMPILER
+#endif // ASMJIT_X86_X86RAPASS_P_H_INCLUDED