PECOFF: Don't parse files in .drectve asynchronously.

Looks like there's a race condition around here that caused LLD to crash
on Windows. Currently we are parsing libraries specified by .drectve section
asynchronously, and something is wrong in that process. Disable the feature
for now to make buildbots happy.

llvm-svn: 228955

diff --git a/lld/lib/Driver/WinLinkDriver.cpp b/lld/lib/Driver/WinLinkDriver.cpp
index b29d235..de6b926 100644 (file)
--- a/lld/lib/Driver/WinLinkDriver.cpp
+++ b/lld/lib/Driver/WinLinkDriver.cpp
@@ -1348,10 +1348,8 @@ bool WinLinkDriver::parse(int argc, const char *argv[],
 
   // Add the input files to the linking context.
   for (std::unique_ptr<File> &file : files) {
-    if (isReadingDirectiveSection) {
-      File *f = file.get();
-      ctx.getTaskGroup().spawn([f] { f->parse(); });
-    }
+    if (isReadingDirectiveSection)
+      file.get()->parse();
     ctx.getNodes().push_back(llvm::make_unique<FileNode>(std::move(file)));
   }
 
@@ -1364,10 +1362,8 @@ bool WinLinkDriver::parse(int argc, const char *argv[],
   // Add the library files to the library group.
   for (std::unique_ptr<File> &file : libraries) {
     if (!hasLibrary(ctx, file.get())) {
-      if (isReadingDirectiveSection) {
-        File *f = file.get();
-        ctx.getTaskGroup().spawn([f] { f->parse(); });
-      }
+      if (isReadingDirectiveSection)
+        file.get()->parse();
       ctx.addLibraryFile(llvm::make_unique<FileNode>(std::move(file)));
     }
   }