Function metrics pass (#1353)

Emits binary size and opcode counts for each function, which helps investigating what's taking up space in a wasm binary.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/wasm/wasm-binary.cpp b/src/wasm/wasm-binary.cpp
index 1a7ab6267..514b489a9 100644
--- a/src/wasm/wasm-binary.cpp
+++ b/src/wasm/wasm-binary.cpp
@@ -287,6 +287,7 @@ void WasmBinaryWriter::writeFunctions() {
       std::move(&o[start], &o[start] + size, &o[sizePos] + sizeFieldSize);
       o.resize(o.size() - (MaxLEB32Bytes - sizeFieldSize));
     }
+    tableOfContents.functionBodies.emplace_back(function->name, sizePos + sizeFieldSize, size);
   }
   currFunction = nullptr;
   finishSection(start);