summaryrefslogtreecommitdiffstats
path: root/js/src/jit/arm/MoveEmitter-arm.h
diff options
context:
space:
mode:
Diffstat (limited to 'js/src/jit/arm/MoveEmitter-arm.h')
-rw-r--r--js/src/jit/arm/MoveEmitter-arm.h66
1 files changed, 66 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 000000000..70aafbdf6
--- /dev/null
+++ b/js/src/jit/arm/MoveEmitter-arm.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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 "jit/MacroAssembler.h"
+#include "jit/MoveResolver.h"
+
+namespace js {
+namespace jit {
+
+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:
+ 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 */