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New experimental/undocumented feature: 'works_on_empty'.

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For now, just enough support to make -filelist work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96918 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mikhail Glushenkov
2010-02-23 09:04:28 +00:00
parent 9f2a0802e5
commit be6ee7c116
6 changed files with 42 additions and 9 deletions
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2
lib/CompilerDriver/CompilationGraph.cpp
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@@ -313,7 +313,7 @@ int CompilationGraph::Build (const sys::Path& TempDir,
JoinTool* JT = &dynamic_cast<JoinTool&>(*CurNode->ToolPtr.getPtr());
// Are there any files in the join list?
if (JT->JoinListEmpty())
if (JT->JoinListEmpty() && !(JT->WorksOnEmpty() && InputFilenames.empty()))
continue;
Action CurAction = JT->GenerateAction(CurNode->HasChildren(),