diff --git a/lld/Common/Args.cpp b/lld/Common/Args.cpp
--- a/lld/Common/Args.cpp
+++ b/lld/Common/Args.cpp
@@ -26,12 +26,13 @@
   return CodeGenOpt::Default;
 }
 
-int lld::args::getInteger(opt::InputArgList &Args, unsigned Key, int Default) {
+int64_t lld::args::getInteger(opt::InputArgList &Args, unsigned Key,
+                              int64_t Default) {
   auto *A = Args.getLastArg(Key);
   if (!A)
     return Default;
 
-  int V;
+  int64_t V;
   if (to_integer(A->getValue(), V, 10))
     return V;
 
diff --git a/lld/include/lld/Common/Args.h b/lld/include/lld/Common/Args.h
--- a/lld/include/lld/Common/Args.h
+++ b/lld/include/lld/Common/Args.h
@@ -25,7 +25,8 @@
 
 llvm::CodeGenOpt::Level getCGOptLevel(int OptLevelLTO);
 
-int getInteger(llvm::opt::InputArgList &Args, unsigned Key, int Default);
+int64_t getInteger(llvm::opt::InputArgList &Args, unsigned Key,
+                   int64_t Default);
 
 std::vector<StringRef> getStrings(llvm::opt::InputArgList &Args, int Id);
 
diff --git a/lld/test/wasm/large-memory.test b/lld/test/wasm/large-memory.test
new file mode 100644
--- /dev/null
+++ b/lld/test/wasm/large-memory.test
@@ -0,0 +1,5 @@
+RUN: llc -filetype=obj %p/Inputs/start.ll -o %t.o
+
+; Verify we can parse large integers such as when we ask for 2G of total
+; memory.
+RUN: wasm-ld %t.o -o %t.wasm --max-memory=2147483648 2>&1