test/parse/expr/brif.txt - external/github.com/WebAssembly/wabt - Git at Google

 ;;; TOOL: wat2wasm
 (module
   (func
     block $foo
       i32.const 1
       br_if 0
     end))
	;;; TOOL: wat2wasm
	(module
	(func
	block $foo
	i32.const 1
	br_if 0
	end))