Expose a lower bound of malloc'd memory via heap statistics

src/wasm/ast-decoder.h

 // Copyright 2015 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_WASM_AST_DECODER_H_
 #define V8_WASM_AST_DECODER_H_
 
 #include "src/signature.h"
 #include "src/wasm/decoder.h"
 #include "src/wasm/wasm-opcodes.h"
@@ skipping 176 matching lines @@
   const byte* base;   // base of the module bytes, for error reporting
   const byte* start;  // start of the function body
   const byte* end;    // end of the function body
 };
 
 struct Tree;
 typedef Result<Tree*> TreeResult;
 
 std::ostream& operator<<(std::ostream& os, const Tree& tree);
 
-TreeResult VerifyWasmCode(FunctionBody& body);
-TreeResult BuildTFGraph(TFBuilder* builder, FunctionBody& body);
-void PrintAst(FunctionBody& body);
+TreeResult VerifyWasmCode(base::AccountingAllocator* allocator,
+                          FunctionBody& body);
+TreeResult BuildTFGraph(base::AccountingAllocator* allocator,
+                        TFBuilder* builder, FunctionBody& body);
+void PrintAst(base::AccountingAllocator* allocator, FunctionBody& body);
 
-inline TreeResult VerifyWasmCode(ModuleEnv* module, FunctionSig* sig,
+inline TreeResult VerifyWasmCode(base::AccountingAllocator* allocator,
+                                 ModuleEnv* module, FunctionSig* sig,
                                  const byte* start, const byte* end) {
   FunctionBody body = {module, sig, nullptr, start, end};
-  return VerifyWasmCode(body);
+  return VerifyWasmCode(allocator, body);
 }
 
-inline TreeResult BuildTFGraph(TFBuilder* builder, ModuleEnv* module,
+inline TreeResult BuildTFGraph(base::AccountingAllocator* allocator,
+                               TFBuilder* builder, ModuleEnv* module,
                                FunctionSig* sig, const byte* start,
                                const byte* end) {
   FunctionBody body = {module, sig, nullptr, start, end};
-  return BuildTFGraph(builder, body);
+  return BuildTFGraph(allocator, builder, body);
 }
 
 enum ReadUnsignedLEB128ErrorCode { kNoError, kInvalidLEB128, kMissingLEB128 };
 
 ReadUnsignedLEB128ErrorCode ReadUnsignedLEB128Operand(const byte*, const byte*,
                                                       int*, uint32_t*);
 
-std::vector<LocalType>* DecodeLocalDeclsForTesting(const byte* start,
-                                                   const byte* end);
+std::vector<LocalType>* DecodeLocalDeclsForTesting(
+    base::AccountingAllocator* allocator, const byte* start, const byte* end);
 BitVector* AnalyzeLoopAssignmentForTesting(Zone* zone, size_t num_locals,
                                            const byte* start, const byte* end);
 
 // Computes the length of the opcode at the given address.
 int OpcodeLength(const byte* pc, const byte* end);
 
 // Computes the arity (number of sub-nodes) of the opcode at the given address.
 int OpcodeArity(ModuleEnv* module, FunctionSig* sig, const byte* pc,
                 const byte* end);
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_WASM_AST_DECODER_H_