Force RegisterStandardPasses to construct std::function in the IPO library.
Summary: Fixes an issue using RegisterStandardPasses from a statically linked object before PassManagerBuilder::addGlobalExtension is called from a dynamic library.
Reviewers: efriedma, theraven
Reviewed By: efriedma
Subscribers: mehdi_amini, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D33515
llvm-svn: 305303
diff --git a/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h b/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h
index 247382c..ac25c7f 100644
--- a/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h
+++ b/llvm/include/llvm/Transforms/IPO/PassManagerBuilder.h
@@ -60,9 +60,10 @@
public:
/// Extensions are passed the builder itself (so they can see how it is
/// configured) as well as the pass manager to add stuff to.
- typedef std::function<void(const PassManagerBuilder &Builder,
- legacy::PassManagerBase &PM)>
- ExtensionFn;
+ typedef void ExtensionProc(const PassManagerBuilder &Builder,
+ legacy::PassManagerBase &PM);
+ typedef std::function<ExtensionProc> ExtensionFn;
+
enum ExtensionPointTy {
/// EP_EarlyAsPossible - This extension point allows adding passes before
/// any other transformations, allowing them to see the code as it is coming
@@ -179,7 +180,7 @@
/// Adds an extension that will be used by all PassManagerBuilder instances.
/// This is intended to be used by plugins, to register a set of
/// optimisations to run automatically.
- static void addGlobalExtension(ExtensionPointTy Ty, ExtensionFn Fn);
+ static void addGlobalExtension(ExtensionPointTy Ty, ExtensionProc Fn);
void addExtension(ExtensionPointTy Ty, ExtensionFn Fn);
private:
@@ -208,10 +209,12 @@
/// used by optimizer plugins to allow all front ends to transparently use
/// them. Create a static instance of this class in your plugin, providing a
/// private function that the PassManagerBuilder can use to add your passes.
+/// Currently limited to real functions to avoid crashes when used within the
+/// main executable before a loaded plugin has a chance to use this.
struct RegisterStandardPasses {
RegisterStandardPasses(PassManagerBuilder::ExtensionPointTy Ty,
- PassManagerBuilder::ExtensionFn Fn) {
- PassManagerBuilder::addGlobalExtension(Ty, std::move(Fn));
+ PassManagerBuilder::ExtensionProc Fn) {
+ PassManagerBuilder::addGlobalExtension(Ty, Fn);
}
};
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
index 4bc64ab..90a18d7 100644
--- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -198,10 +198,9 @@
static ManagedStatic<SmallVector<std::pair<PassManagerBuilder::ExtensionPointTy,
PassManagerBuilder::ExtensionFn>, 8> > GlobalExtensions;
-void PassManagerBuilder::addGlobalExtension(
- PassManagerBuilder::ExtensionPointTy Ty,
- PassManagerBuilder::ExtensionFn Fn) {
- GlobalExtensions->push_back(std::make_pair(Ty, std::move(Fn)));
+void PassManagerBuilder::addGlobalExtension(ExtensionPointTy Ty,
+ ExtensionProc Fn) {
+ GlobalExtensions->push_back(std::make_pair(Ty, Fn));
}
void PassManagerBuilder::addExtension(ExtensionPointTy Ty, ExtensionFn Fn) {
diff --git a/llvm/unittests/Support/DynamicLibrary/CMakeLists.txt b/llvm/unittests/Support/DynamicLibrary/CMakeLists.txt
index b5844381..76c5546 100644
--- a/llvm/unittests/Support/DynamicLibrary/CMakeLists.txt
+++ b/llvm/unittests/Support/DynamicLibrary/CMakeLists.txt
@@ -1,4 +1,4 @@
-set(LLVM_LINK_COMPONENTS Support)
+set(LLVM_LINK_COMPONENTS Support IPO)
add_library(DynamicLibraryLib STATIC ExportedFuncs.cxx)
diff --git a/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp b/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
index c54e1b7..5730d61 100644
--- a/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
+++ b/llvm/unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
@@ -12,6 +12,7 @@
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/Path.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
#include "gtest/gtest.h"
#include "PipSqueak.h"
@@ -52,6 +53,28 @@
return Tmp.P;
}
+static void
+NoPassRegistration(const PassManagerBuilder &, legacy::PassManagerBase &) {
+}
+
+static RegisterStandardPasses LocalPass(PassManagerBuilder::EP_LoopOptimizerEnd,
+ NoPassRegistration);
+
+typedef void (*TestPassReg)(void (*)(PassManagerBuilder::ExtensionPointTy,
+ PassManagerBuilder::ExtensionProc));
+
+TEST(DynamicLibrary, PassRegistration) {
+ std::string Err;
+ llvm_shutdown_obj Shutdown;
+ DynamicLibrary DL =
+ DynamicLibrary::getPermanentLibrary(LibPath().c_str(), &Err);
+ EXPECT_TRUE(DL.isValid());
+ EXPECT_TRUE(Err.empty());
+
+ TestPassReg RP = FuncPtr<TestPassReg>(DL.getAddressOfSymbol("TestPassReg"));
+ RP(&PassManagerBuilder::addGlobalExtension);
+}
+
static const char *OverloadTestA() { return "OverloadCall"; }
std::string StdString(const char *Ptr) { return Ptr ? Ptr : ""; }
diff --git a/llvm/unittests/Support/DynamicLibrary/PipSqueak.cxx b/llvm/unittests/Support/DynamicLibrary/PipSqueak.cxx
index 375d72c..0c2ec00 100644
--- a/llvm/unittests/Support/DynamicLibrary/PipSqueak.cxx
+++ b/llvm/unittests/Support/DynamicLibrary/PipSqueak.cxx
@@ -8,6 +8,10 @@
//===----------------------------------------------------------------------===//
#include "PipSqueak.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
+
+#define PIPSQUEAK_TESTA_RETURN "LibCall"
+#include "ExportedFuncs.cxx"
struct Global {
std::string *Str;
@@ -45,5 +49,13 @@
Glb.Vec = &V;
}
-#define PIPSQUEAK_TESTA_RETURN "LibCall"
-#include "ExportedFuncs.cxx"
+
+static void LibPassRegistration(const llvm::PassManagerBuilder &,
+ llvm::legacy::PassManagerBase &) {}
+
+extern "C" PIPSQUEAK_EXPORT void TestPassReg(
+ void (*addGlobalExtension)(llvm::PassManagerBuilder::ExtensionPointTy,
+ llvm::PassManagerBuilder::ExtensionProc)) {
+ addGlobalExtension(llvm::PassManagerBuilder::EP_EarlyAsPossible,
+ LibPassRegistration);
+}