commit 688fbb652980b34329662926448c0151dbd05d94
author Mikhail Glushenkov <foldr@codedgers.com> Thu Jun 25 18:21:34 2009 +0000
committer Mikhail Glushenkov <foldr@codedgers.com> Thu Jun 25 18:21:34 2009 +0000
tree 78205b7a4abbcda519b6b038b277013b0b0b2f41
parent 1a03c431894f45fc64cef1e96807aa44c50bf261

Better error message.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74193 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/LLVMCConfigurationEmitter.cpp

diff --git a/utils/TableGen/LLVMCConfigurationEmitter.cpp b/utils/TableGen/LLVMCConfigurationEmitter.cpp
index e9acd96..9fcfd05 100644
--- a/utils/TableGen/LLVMCConfigurationEmitter.cpp
+++ b/utils/TableGen/LLVMCConfigurationEmitter.cpp
@@ -1132,12 +1132,14 @@
   enum TokenizerState
   { Normal, SpecialCommand, InsideSpecialCommand, InsideQuotationMarks }
   cur_st  = Normal;
+
+  if (CmdLine.empty())
+    return;
   Out.push_back("");
 
   std::string::size_type B = CmdLine.find_first_not_of(Delimiters),
     E = CmdLine.size();
-  if (B == std::string::npos)
-    throw "Empty command-line string!";
+
   for (; B != E; ++B) {
     char cur_ch = CmdLine[B];
 
@@ -1278,7 +1280,7 @@
   TokenizeCmdline(InitPtrToString(CmdLine), StrVec);
 
   if (StrVec.empty())
-    throw "Tool " + ToolName + " has empty command line!";
+    throw "Tool '" + ToolName + "' has empty command line!";
 
   StrVector::const_iterator I = StrVec.begin(), E = StrVec.end();