test/CodeGen/WebAssembly/wasm-main.c - llvm-project/clang - Git at Google

 // RUN: %clang_cc1 -triple wasm32 -o - -emit-llvm %s | FileCheck %s

 // Don't mangle the no-arg form of main.

 int main(void) {
   return 0;
 }

 // CHECK-LABEL: define i32 @main()
	// RUN: %clang_cc1 -triple wasm32 -o - -emit-llvm %s \| FileCheck %s

	// Don't mangle the no-arg form of main.

	int main(void) {
	return 0;
	}

	// CHECK-LABEL: define i32 @main()