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commit 080fb498017d17af2e4d7563608c7d8a848f20da
Author: Sanjoy Das <sanjoy at azulsystems.com>
Date: Thu Jun 19 15:38:02 2014 -0700
Fix the --enable-shared build.
Currently a build configured with ./configure --enable-shared breaks
with an undefined "llvm::cl::parser<llvm::PassInfo
const*>::getOption(unsigned int) const" symbol when linking opt. This
body for this symbol gets emitted into Pass.o (along with the destructor
for PassNameParser), but gets linked into libLLVM-3.5svn.so with local
visibility, causing the link error.
This fix uses the existing EXTERN_TEMPLATE machinery to force a globally
visible definition for the functions in parser<const PassInfo *> into
Pass.o.
diff --git a/include/llvm/IR/LegacyPassNameParser.h b/include/llvm/IR/LegacyPassNameParser.h
index e2e4912..a07e3fd 100644
--- a/include/llvm/IR/LegacyPassNameParser.h
+++ b/include/llvm/IR/LegacyPassNameParser.h
@@ -95,6 +95,8 @@ private:
}
};
+EXTERN_TEMPLATE_INSTANTIATION(class cl::parser<const PassInfo *>);
+
///===----------------------------------------------------------------------===//
/// FilteredPassNameParser class - Make use of the pass registration
/// mechanism to automatically add a command line argument to opt for
diff --git a/lib/IR/Pass.cpp b/lib/IR/Pass.cpp
index 91d86ae..00ce223 100644
--- a/lib/IR/Pass.cpp
+++ b/lib/IR/Pass.cpp
@@ -234,6 +234,8 @@ PassNameParser::~PassNameParser() {
// attempting to remove the registration listener is an error.
}
+TEMPLATE_INSTANTIATION(class cl::parser<const PassInfo *>);
+
//===----------------------------------------------------------------------===//
// AnalysisUsage Class Implementation
//
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