Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 70 insertions, 0 deletions

diff --git a/js/src/jit/arm/MoveEmitter-arm.h b/js/src/jit/arm/MoveEmitter-arm.h
new file mode 100644
index 0000000000..26a84fdbcc
--- /dev/null
+++ b/js/src/jit/arm/MoveEmitter-arm.h
@@ -0,0 +1,70 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef jit_arm_MoveEmitter_arm_h
+#define jit_arm_MoveEmitter_arm_h
+
+#include <stdint.h>
+
+#include "jit/MoveResolver.h"
+#include "jit/Registers.h"
+
+namespace js {
+namespace jit {
+
+struct Address;
+class MacroAssembler;
+
+class MoveEmitterARM {
+  uint32_t inCycle_;
+  MacroAssembler& masm;
+
+  // Original stack push value.
+  uint32_t pushedAtStart_;
+
+  // These store stack offsets to spill locations, snapshotting
+  // codegen->framePushed_ at the time they were allocated. They are -1 if no
+  // stack space has been allocated for that particular spill.
+  int32_t pushedAtCycle_;
+  int32_t pushedAtSpill_;
+
+  // These are registers that are available for temporary use. They may be
+  // assigned InvalidReg. If no corresponding spill space has been assigned,
+  // then these registers do not need to be spilled.
+  Register spilledReg_;
+  FloatRegister spilledFloatReg_;
+
+  void assertDone();
+  Register tempReg();
+  FloatRegister tempFloatReg();
+  Address cycleSlot(uint32_t slot, uint32_t subslot) const;
+  Address spillSlot() const;
+  Address toAddress(const MoveOperand& operand) const;
+
+  void emitMove(const MoveOperand& from, const MoveOperand& to);
+  void emitFloat32Move(const MoveOperand& from, const MoveOperand& to);
+  void emitDoubleMove(const MoveOperand& from, const MoveOperand& to);
+  void breakCycle(const MoveOperand& from, const MoveOperand& to,
+                  MoveOp::Type type, uint32_t slot);
+  void completeCycle(const MoveOperand& from, const MoveOperand& to,
+                     MoveOp::Type type, uint32_t slot);
+  void emit(const MoveOp& move);
+
+ public:
+  explicit MoveEmitterARM(MacroAssembler& masm);
+  ~MoveEmitterARM();
+  void emit(const MoveResolver& moves);
+  void finish();
+
+  void setScratchRegister(Register reg) {}
+};
+
+typedef MoveEmitterARM MoveEmitter;
+
+}  // namespace jit
+}  // namespace js
+
+#endif /* jit_arm_MoveEmitter_arm_h */