6 files changed, 13 insertions, 13 deletions

diff --git a/src/tools/execution-results.h b/src/tools/execution-results.h
index dc62bba38..38989aedf 100644
--- a/src/tools/execution-results.h
+++ b/src/tools/execution-results.h
@@ -144,7 +144,7 @@ struct ExecutionResults {
         instance.callFunction(ex->value, arguments);
       }
       // call the method
-      for (auto& param : func->sig.params) {
+      for (const auto& param : func->sig.params) {
         // zeros in arguments TODO: more?
         arguments.push_back(Literal::makeSingleZero(param));
       }
diff --git a/src/tools/fuzzing.h b/src/tools/fuzzing.h
index c76b6e13a..23ea6bbec 100644
--- a/src/tools/fuzzing.h
+++ b/src/tools/fuzzing.h
@@ -308,7 +308,7 @@ private:
   Type getSubType(Type type) {
     if (type.isMulti()) {
       std::vector<Type> types;
-      for (auto& t : type) {
+      for (const auto& t : type) {
         types.push_back(getSubType(t));
       }
       return Type(types);
@@ -770,7 +770,7 @@ private:
     std::vector<Expression*> invocations;
     while (oneIn(2) && !finishedInput) {
       std::vector<Expression*> args;
-      for (auto& type : func->sig.params) {
+      for (const auto& type : func->sig.params) {
         args.push_back(makeConst(type));
       }
       Expression* invoke =
@@ -1166,7 +1166,7 @@ private:
       }
       // we found one!
       std::vector<Expression*> args;
-      for (auto& argType : target->sig.params) {
+      for (const auto& argType : target->sig.params) {
         args.push_back(make(argType));
       }
       return builder.makeCall(target->name, args, type, isReturn);
@@ -1210,7 +1210,7 @@ private:
       target = make(Type::i32);
     }
     std::vector<Expression*> args;
-    for (auto& type : targetFn->sig.params) {
+    for (const auto& type : targetFn->sig.params) {
       args.push_back(make(type));
     }
     return builder.makeCallIndirect(target, args, targetFn->sig, isReturn);
@@ -1267,7 +1267,7 @@ private:
     assert(wasm.features.hasMultivalue());
     assert(type.isMulti());
     std::vector<Expression*> elements;
-    for (auto& t : type) {
+    for (const auto& t : type) {
       elements.push_back(make(t));
     }
     return builder.makeTupleMake(std::move(elements));
@@ -1281,7 +1281,7 @@ private:
     // Find indices from which we can extract `type`
     std::vector<size_t> extractIndices;
     size_t i = 0;
-    for (auto& t : tupleType) {
+    for (const auto& t : tupleType) {
       if (t == type) {
         extractIndices.push_back(i);
       }
@@ -1767,7 +1767,7 @@ private:
     }
     if (type.isMulti()) {
       std::vector<Expression*> operands;
-      for (auto& t : type) {
+      for (const auto& t : type) {
         operands.push_back(makeConst(t));
       }
       return builder.makeTupleMake(std::move(operands));
diff --git a/src/tools/js-wrapper.h b/src/tools/js-wrapper.h
index 58e52b782..cfbc36ee6 100644
--- a/src/tools/js-wrapper.h
+++ b/src/tools/js-wrapper.h
@@ -99,7 +99,7 @@ static std::string generateJSWrapper(Module& wasm) {
     }
     ret += std::string("instance.exports.") + exp->name.str + "(";
     bool first = true;
-    for (auto& param : func->sig.params) {
+    for (const auto& param : func->sig.params) {
       // zeros in arguments TODO more?
       if (first) {
         first = false;
diff --git a/src/tools/spec-wrapper.h b/src/tools/spec-wrapper.h
index 513cc8bda..44f92b56d 100644
--- a/src/tools/spec-wrapper.h
+++ b/src/tools/spec-wrapper.h
@@ -30,7 +30,7 @@ static std::string generateSpecWrapper(Module& wasm) {
     }
     ret += std::string("(invoke \"hangLimitInitializer\") (invoke \"") +
            exp->name.str + "\" ";
-    for (auto& param : func->sig.params) {
+    for (const auto& param : func->sig.params) {
       // zeros in arguments TODO more?
       TODO_SINGLE_COMPOUND(param);
       switch (param.getBasic()) {
diff --git a/src/tools/wasm-shell.cpp b/src/tools/wasm-shell.cpp
index 1093ff85c..688815598 100644
--- a/src/tools/wasm-shell.cpp
+++ b/src/tools/wasm-shell.cpp
@@ -111,7 +111,7 @@ static void run_asserts(Name moduleName,
         std::cerr << "Unknown entry " << entry << std::endl;
       } else {
         LiteralList arguments;
-        for (auto& param : function->sig.params) {
+        for (const auto& param : function->sig.params) {
           arguments.push_back(Literal(param));
         }
         try {
diff --git a/src/tools/wasm2c-wrapper.h b/src/tools/wasm2c-wrapper.h
index 0dd3c4381..91971c68b 100644
--- a/src/tools/wasm2c-wrapper.h
+++ b/src/tools/wasm2c-wrapper.h
@@ -165,7 +165,7 @@ int main(int argc, char** argv) {
 
     ret += wasm2cSignature(result);
     if (func->sig.params.isMulti()) {
-      for (auto& param : func->sig.params) {
+      for (const auto& param : func->sig.params) {
         ret += wasm2cSignature(param);
       }
     } else {
@@ -175,7 +175,7 @@ int main(int argc, char** argv) {
 
     // Emit the parameters (all 0s, like the other wrappers).
     bool first = true;
-    for (auto& param : func->sig.params) {
+    for (const auto& param : func->sig.params) {
       WASM_UNUSED(param);
       if (!first) {
         ret += ", ";