1 files changed, 87 insertions, 0 deletions
diff --git a/js/src/jit/loong64/Architecture-loong64.cpp b/js/src/jit/loong64/Architecture-loong64.cpp
new file mode 100644
index 0000000000..6b1069a592
--- /dev/null
+++ b/js/src/jit/loong64/Architecture-loong64.cpp
@@ -0,0 +1,87 @@
+/* -*- 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/. */
+
+#include "jit/loong64/Architecture-loong64.h"
+
+#include "jit/FlushICache.h"  // js::jit::FlushICache
+#include "jit/loong64/Simulator-loong64.h"
+#include "jit/RegisterSets.h"
+
+namespace js {
+namespace jit {
+
+Registers::Code Registers::FromName(const char* name) {
+  for (size_t i = 0; i < Total; i++) {
+    if (strcmp(GetName(i), name) == 0) {
+      return Code(i);
+    }
+  }
+
+  return Invalid;
+}
+
+FloatRegisters::Code FloatRegisters::FromName(const char* name) {
+  for (size_t i = 0; i < Total; i++) {
+    if (strcmp(GetName(i), name) == 0) {
+      return Code(i);
+    }
+  }
+
+  return Invalid;
+}
+
+FloatRegisterSet FloatRegister::ReduceSetForPush(const FloatRegisterSet& s) {
+#ifdef ENABLE_WASM_SIMD
+#  error "Needs more careful logic if SIMD is enabled"
+#endif
+
+  LiveFloatRegisterSet ret;
+  for (FloatRegisterIterator iter(s); iter.more(); ++iter) {
+    ret.addUnchecked(FromCode((*iter).encoding()));
+  }
+  return ret.set();
+}
+
+uint32_t FloatRegister::GetPushSizeInBytes(const FloatRegisterSet& s) {
+#ifdef ENABLE_WASM_SIMD
+#  error "Needs more careful logic if SIMD is enabled"
+#endif
+
+  return s.size() * sizeof(double);
+}
+
+uint32_t FloatRegister::getRegisterDumpOffsetInBytes() {
+#ifdef ENABLE_WASM_SIMD
+#  error "Needs more careful logic if SIMD is enabled"
+#endif
+
+  return encoding() * sizeof(double);
+}
+
+bool CPUFlagsHaveBeenComputed() {
+  // TODO(loong64): Add CPU flags support.
+  return true;
+}
+
+uint32_t GetLOONG64Flags() { return 0; }
+
+void FlushICache(void* code, size_t size) {
+#if defined(JS_SIMULATOR)
+  js::jit::SimulatorProcess::FlushICache(code, size);
+
+#elif defined(__GNUC__)
+  intptr_t end = reinterpret_cast<intptr_t>(code) + size;
+  __builtin___clear_cache(reinterpret_cast<char*>(code),
+                          reinterpret_cast<char*>(end));
+
+#else
+  _flush_cache(reinterpret_cast<char*>(code), size, BCACHE);
+
+#endif
+}
+
+}  // namespace jit
+}  // namespace js