Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 126 insertions, 0 deletions

diff --git a/js/src/wasm/WasmBCClass-inl.h b/js/src/wasm/WasmBCClass-inl.h
new file mode 100644
index 0000000000..2aaeb881e3
--- /dev/null
+++ b/js/src/wasm/WasmBCClass-inl.h
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ *
+ * Copyright 2016 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// This is an INTERNAL header for Wasm baseline compiler: inline BaseCompiler
+// methods that don't fit in any other group in particular.
+
+#ifndef wasm_wasm_baseline_object_inl_h
+#define wasm_wasm_baseline_object_inl_h
+
+namespace js {
+namespace wasm {
+
+const FuncType& BaseCompiler::funcType() const {
+  return *moduleEnv_.funcs[func_.index].type;
+}
+
+bool BaseCompiler::usesMemory() const {
+  return moduleEnv_.memories.length() > 0;
+}
+
+bool BaseCompiler::usesSharedMemory(uint32_t memoryIndex) const {
+  return moduleEnv_.usesSharedMemory(memoryIndex);
+}
+
+const Local& BaseCompiler::localFromSlot(uint32_t slot, MIRType type) {
+  MOZ_ASSERT(localInfo_[slot].type == type);
+  return localInfo_[slot];
+}
+
+BytecodeOffset BaseCompiler::bytecodeOffset() const {
+  return iter_.bytecodeOffset();
+}
+
+bool BaseCompiler::isMem32(uint32_t memoryIndex) const {
+  return moduleEnv_.memories[memoryIndex].indexType() == IndexType::I32;
+}
+
+bool BaseCompiler::isMem64(uint32_t memoryIndex) const {
+  return moduleEnv_.memories[memoryIndex].indexType() == IndexType::I64;
+}
+
+bool BaseCompiler::hugeMemoryEnabled(uint32_t memoryIndex) const {
+  return moduleEnv_.hugeMemoryEnabled(memoryIndex);
+}
+
+uint32_t BaseCompiler::instanceOffsetOfMemoryBase(uint32_t memoryIndex) const {
+  if (memoryIndex == 0) {
+    return Instance::offsetOfMemory0Base();
+  }
+  return Instance::offsetInData(
+      moduleEnv_.offsetOfMemoryInstanceData(memoryIndex) +
+      offsetof(MemoryInstanceData, base));
+}
+
+uint32_t BaseCompiler::instanceOffsetOfBoundsCheckLimit(
+    uint32_t memoryIndex) const {
+  if (memoryIndex == 0) {
+    return Instance::offsetOfMemory0BoundsCheckLimit();
+  }
+  return Instance::offsetInData(
+      moduleEnv_.offsetOfMemoryInstanceData(memoryIndex) +
+      offsetof(MemoryInstanceData, boundsCheckLimit));
+}
+
+// The results parameter for BaseCompiler::emitCallArgs is used for
+// regular Wasm calls.
+struct NormalCallResults final {
+  const StackResultsLoc& results;
+  explicit NormalCallResults(const StackResultsLoc& results)
+      : results(results) {}
+  inline uint32_t onStackCount() const { return results.count(); }
+  inline StackResults stackResults() const { return results.stackResults(); }
+  inline void getStackResultArea(BaseStackFrame fr, RegPtr dest) const {
+    fr.computeOutgoingStackResultAreaPtr(results, dest);
+  }
+};
+
+// The results parameter for BaseCompiler::emitCallArgs is used for
+// Wasm return/tail calls.
+struct TailCallResults final {
+  bool hasStackResults;
+  explicit TailCallResults(const FuncType& funcType) {
+    hasStackResults =
+        ABIResultIter::HasStackResults(ResultType::Vector(funcType.results()));
+  }
+  inline uint32_t onStackCount() const { return 0; }
+  inline StackResults stackResults() const {
+    return hasStackResults ? StackResults::HasStackResults
+                           : StackResults::NoStackResults;
+  }
+  inline void getStackResultArea(BaseStackFrame fr, RegPtr dest) const {
+    fr.loadIncomingStackResultAreaPtr(dest);
+  }
+};
+
+// The results parameter for BaseCompiler::emitCallArgs is used when
+// no result (area) is expected.
+struct NoCallResults final {
+  inline uint32_t onStackCount() const { return 0; }
+  inline StackResults stackResults() const {
+    return StackResults::NoStackResults;
+  }
+  inline void getStackResultArea(BaseStackFrame fr, RegPtr dest) const {
+    MOZ_CRASH();
+  }
+};
+
+}  // namespace wasm
+}  // namespace js
+
+#endif  // wasm_wasm_baseline_object_inl_h