Revert r309984, "Use "foo-12345.o" instead of "foo.o-12345" as temporary file name."

It generates MODULE-XXXXXXXXXXXX-%%%%%%%%.pcm, then GlobalModuleIndex.cpp is confused with the suffix ".pcm"

llvm-svn: 310030

1 files changed, 2 insertions, 6 deletions

diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index d0c1a974aff..bb6a665cb45 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -759,13 +759,9 @@ std::unique_ptr<llvm::raw_pwrite_stream> CompilerInstance::createOutputFile(
 
   if (UseTemporary) {
     // Create a temporary file.
-    // Insert -%%%%%%%% before the extension (if any), so that tools doing
-    // things based on the file extension do the right thing.
-    StringRef OutputExtension = llvm::sys::path::extension(OutFile);
-    SmallString<128> TempPath =
-        StringRef(OutFile).drop_back(OutputExtension.size());
+    SmallString<128> TempPath;
+    TempPath = OutFile;
     TempPath += "-%%%%%%%%";
-    TempPath += OutputExtension;
     int fd;
     std::error_code EC =
         llvm::sys::fs::createUniqueFile(TempPath, fd, TempPath);