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Fix loading pass plugins while using the new passmanager. (LLVM >= 14) (#4254)

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Johan Engelen 2022-11-12 11:58:51 +01:00 • committed by GitHub
parent 7707754a03
commit da3e45f330
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9 changed files with 135 additions and 13 deletions
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61
driver/plugins.cpp
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@ -17,21 +17,57 @@
#include "dmd/errors.h"
#include "dmd/globals.h"
#include "llvm/Passes/PassBuilder.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/DynamicLibrary.h"
#if LDC_LLVM_VER >= 1400
#include "llvm/ADT/SmallVector.h"
#include "llvm/Passes/PassPlugin.h"
#include "llvm/Support/Error.h"
#include "driver/cl_options.h"
#endif
namespace {
namespace cl = llvm::cl;
cl::list<std::string>
pluginFiles("plugin", cl::CommaSeparated, cl::desc("Plugins to load."),
cl::value_desc("dynamic_library.so,lib2.so"));
cl::list<std::string> pluginFiles("plugin", cl::CommaSeparated,
cl::desc("Pass plugins to load."),
cl::value_desc("dynamic_library.so,lib2.so"));
} // anonymous namespace
/// Loads all plugins. The static constructor of each plugin should take care of
/// the plugins registering themself with the rest of LDC/LLVM.
void loadAllPlugins() {
#if LDC_LLVM_VER >= 1400
namespace {
llvm::SmallVector<llvm::PassPlugin, 1> plugins;
}
/// Loads all plugins for the new pass manager. These plugins will need to be
/// added When building the optimization pipeline.
void loadAllPluginsNewPM() {
for (auto &filename : pluginFiles) {
auto plugin = llvm::PassPlugin::Load(filename);
if (!plugin) {
error(Loc(), "Error loading plugin '%s': %s", filename.c_str(),
llvm::toString(plugin.takeError()).c_str());
continue;
}
plugins.emplace_back(plugin.get());
}
}
void registerAllPluginsWithPassBuilder(llvm::PassBuilder &PB) {
for (auto &plugin : plugins) {
plugin.registerPassBuilderCallbacks(PB);
}
}
#endif // LDC_LLVM_VER >= 1400
/// Loads all plugins for the legacy pass manaager. The static constructor of
/// each plugin should take care of the plugins registering themself with the
/// rest of LDC/LLVM.
void loadAllPluginsLegacyPM() {
for (auto &filename : pluginFiles) {
std::string errorString;
if (llvm::sys::DynamicLibrary::LoadLibraryPermanently(filename.c_str(),
@ -42,8 +78,21 @@ void loadAllPlugins() {
}
}
#if LDC_LLVM_VER >= 1400
void loadAllPlugins() {
if (opts::isUsingLegacyPassManager())
loadAllPluginsLegacyPM();
else
loadAllPluginsNewPM();
}
#else
void loadAllPlugins() { loadAllPluginsLegacyPM(); }
void registerAllPluginsWithPassBuilder(llvm::PassBuilder &) {}
#endif
#else // #if LDC_ENABLE_PLUGINS
void loadAllPlugins() {}
void registerAllPluginsWithPassBuilder(llvm::PassBuilder &) {}
#endif // LDC_ENABLE_PLUGINS