1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/jit/riscv64/extension/extension-riscv-a.h b/js/src/jit/riscv64/extension/extension-riscv-a.h
new file mode 100644
index 0000000000..442a4f5bba
--- /dev/null
+++ b/js/src/jit/riscv64/extension/extension-riscv-a.h
@@ -0,0 +1,46 @@
+// Copyright 2022 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file."
+#ifndef jit_riscv64_extension_Extension_riscv_a_h_
+#define jit_riscv64_extension_Extension_riscv_a_h_
+#include "mozilla/Assertions.h"
+
+#include <stdint.h>
+
+#include "jit/riscv64/extension/base-assembler-riscv.h"
+#include "jit/riscv64/Register-riscv64.h"
+namespace js {
+namespace jit {
+class AssemblerRISCVA : public AssemblerRiscvBase {
+  // RV32A Standard Extension
+ public:
+  void lr_w(bool aq, bool rl, Register rd, Register rs1);
+  void sc_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoswap_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoadd_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoxor_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoand_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoor_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomin_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomax_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amominu_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomaxu_w(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+
+#ifdef JS_CODEGEN_RISCV64
+  // RV64A Standard Extension (in addition to RV32A)
+  void lr_d(bool aq, bool rl, Register rd, Register rs1);
+  void sc_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoswap_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoadd_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoxor_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoand_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amoor_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomin_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomax_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amominu_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+  void amomaxu_d(bool aq, bool rl, Register rd, Register rs1, Register rs2);
+#endif
+};
+}  // namespace jit
+}  // namespace js
+#endif  // jit_riscv64_extension_Extension_riscv_A_h_