1 files changed, 56 insertions, 0 deletions
diff --git a/deps/v8/src/codegen/arm/reglist-arm.h b/deps/v8/src/codegen/arm/reglist-arm.h
new file mode 100644
index 0000000000..c6834a5db5
--- /dev/null
+++ b/deps/v8/src/codegen/arm/reglist-arm.h
@@ -0,0 +1,56 @@
+// 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 V8_CODEGEN_ARM_REGLIST_ARM_H_
+#define V8_CODEGEN_ARM_REGLIST_ARM_H_
+
+#include "src/codegen/register-arch.h"
+#include "src/codegen/reglist-base.h"
+
+namespace v8 {
+namespace internal {
+
+using RegList = RegListBase<Register>;
+using DoubleRegList = RegListBase<DoubleRegister>;
+ASSERT_TRIVIALLY_COPYABLE(RegList);
+ASSERT_TRIVIALLY_COPYABLE(DoubleRegList);
+
+// Register list in load/store instructions
+// Note that the bit values must match those used in actual instruction encoding
+
+// Caller-saved/arguments registers
+const RegList kJSCallerSaved = {r0,   // r0 a1
+                                r1,   // r1 a2
+                                r2,   // r2 a3
+                                r3};  // r3 a4
+
+const int kNumJSCallerSaved = 4;
+
+// Callee-saved registers preserved when switching from C to JavaScript
+const RegList kCalleeSaved = {r4,  //  r4 v1
+                              r5,  //  r5 v2
+                              r6,  //  r6 v3
+                              r7,  //  r7 v4 (cp in JavaScript code)
+                              r8,  //  r8 v5 (pp in JavaScript code)
+                              kR9Available ? r9 : Register::no_reg(),  //  r9 v6
+                              r10,                                     // r10 v7
+                              r11};  // r11 v8 (fp in JavaScript code)
+
+// When calling into C++ (only for C++ calls that can't cause a GC).
+// The call code will take care of lr, fp, etc.
+const RegList kCallerSaved = {r0,   // r0
+                              r1,   // r1
+                              r2,   // r2
+                              r3,   // r3
+                              r9};  // r9
+
+const int kNumCalleeSaved = 7 + kR9Available;
+
+// Double registers d8 to d15 are callee-saved.
+const int kNumDoubleCalleeSaved = 8;
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_CODEGEN_ARM_REGLIST_ARM_H_