diff --git a/llvm/lib/AsmParser/Lexer.l b/llvm/lib/AsmParser/Lexer.l
index faddcb16d51d..b8373250a74d 100644
--- a/llvm/lib/AsmParser/Lexer.l
+++ b/llvm/lib/AsmParser/Lexer.l
@@ -85,7 +85,7 @@ static double HexToFP(const char *Buffer) {
 // If AllowNull is set to true, the return value of the function points to the
 // last character of the string in memory.
 //
-char *UnEscapeLexed(char *Buffer, bool AllowNull = false) {
+char *UnEscapeLexed(char *Buffer, bool AllowNull) {
   char *BOut = Buffer;
   for (char *BIn = Buffer; *BIn; ) {
     if (BIn[0] == '\\' && isxdigit(BIn[1]) && isxdigit(BIn[2])) {
diff --git a/llvm/lib/AsmParser/llvmAsmParser.y b/llvm/lib/AsmParser/llvmAsmParser.y
index a9e4e75d44c2..33ae800b5942 100644
--- a/llvm/lib/AsmParser/llvmAsmParser.y
+++ b/llvm/lib/AsmParser/llvmAsmParser.y
@@ -387,7 +387,7 @@ static Value *getVal(const Type *Ty, const ValID &D) {
 // defs now...
 //
 static void ResolveDefinitions(vector<ValueList> &LateResolvers,
-                               vector<ValueList> *FutureLateResolvers = 0) {
+                               vector<ValueList> *FutureLateResolvers) {
   // Loop over LateResolveDefs fixing up stuff that couldn't be resolved
   for (unsigned ty = 0; ty < LateResolvers.size(); ty++) {
     while (!LateResolvers[ty].empty()) {