Frontend: Create a virtual file for named pipe inputs.
- This ensures we see the right buffer size for the file.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168636 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/CompilerInstance.cpp b/lib/Frontend/CompilerInstance.cpp
index c2aff82..b01a3f6 100644
--- a/lib/Frontend/CompilerInstance.cpp
+++ b/lib/Frontend/CompilerInstance.cpp
@@ -620,7 +620,6 @@
Diags.Report(diag::err_fe_error_reading) << InputFile;
return false;
}
- SourceMgr.createMainFileID(File, Kind);
// The natural SourceManager infrastructure can't currently handle named
// pipes, but we would at least like to accept them for the main
@@ -632,8 +631,13 @@
Diags.Report(diag::err_cannot_open_file) << InputFile << ec.message();
return false;
}
+
+ // Create a new virtual file that will have the correct size.
+ File = FileMgr.getVirtualFile(InputFile, MB->getBufferSize(), 0);
SourceMgr.overrideFileContents(File, MB.take());
}
+
+ SourceMgr.createMainFileID(File, Kind);
} else {
OwningPtr<llvm::MemoryBuffer> SB;
if (llvm::MemoryBuffer::getSTDIN(SB)) {
diff --git a/test/Misc/dev-fd-fs.c b/test/Misc/dev-fd-fs.c
index fbc50fc..e35486e 100644
--- a/test/Misc/dev-fd-fs.c
+++ b/test/Misc/dev-fd-fs.c
@@ -1,8 +1,5 @@
// Check that we can operate on files from /dev/fd.
// REQUIRES: dev-fd-fs
-//
-// Currently, this only appears to work on Darwin's dev-fs.
-// REQUIRES: system-darwin
// Check reading from named pipes. We cat the input here instead of redirecting
