because some functions just use va_start and pass things to vfprintf
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22269 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 94d6edf..b71f618 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -737,6 +737,17 @@
Module *Result = ParserResult;
ParserResult = 0;
+ //Not all functions use vaarg, so make a second check for ObsoleteVarArgs
+ {
+ Function* F;
+ if ((F = Result->getNamedFunction("llvm.va_start"))
+ && F->getFunctionType()->getNumParams() == 0)
+ ObsoleteVarArgs = true;
+ if((F = Result->getNamedFunction("llvm.va_copy"))
+ && F->getFunctionType()->getNumParams() == 1)
+ ObsoleteVarArgs = true;
+ }
+
if (ObsoleteVarArgs && NewVarArgs)
{
std::cerr << "This file is corrupt in that it uses both new and old style varargs\n";