https://github.com/wsmoses updated
https://github.com/llvm/llvm-project/pull/70171
>From bb04e157dcd667b9baf261f07f8081a52c5481a0 Mon Sep 17 00:00:00 2001
From: "William S. Moses" <g...@wsmoses.com>
Date: Wed, 25 Oct 2023 02:10:32 -0500
Subject: [PATCH] [Clang] Add codegen option to add passbuilder callback
functions
---
clang/include/clang/Basic/CodeGenOptions.h | 6 ++++++
clang/lib/CodeGen/BackendUtil.cpp | 3 +++
2 files changed, 9 insertions(+)
diff --git a/clang/include/clang/Basic/CodeGenOptions.h
b/clang/include/clang/Basic/CodeGenOptions.h
index 12be4e0025a7054..c8e2544f891cc2b 100644
--- a/clang/include/clang/Basic/CodeGenOptions.h
+++ b/clang/include/clang/Basic/CodeGenOptions.h
@@ -26,6 +26,9 @@
#include <string>
#include <vector>
+namespace llvm {
+class PassBuilder;
+}
namespace clang {
/// Bitfields of CodeGenOptions, split out from CodeGenOptions to ensure
@@ -408,6 +411,9 @@ class CodeGenOptions : public CodeGenOptionsBase {
/// List of dynamic shared object files to be loaded as pass plugins.
std::vector<std::string> PassPlugins;
+ /// List of pass builder callbacks.
+ std::vector<std::function<void(llvm::PassBuilder &)>> PassBuilderCallbacks;
+
/// Path to allowlist file specifying which objects
/// (files, functions) should exclusively be instrumented
/// by sanitizer coverage pass.
diff --git a/clang/lib/CodeGen/BackendUtil.cpp
b/clang/lib/CodeGen/BackendUtil.cpp
index 70accce456d3c07..a8db38fce6425fb 100644
--- a/clang/lib/CodeGen/BackendUtil.cpp
+++ b/clang/lib/CodeGen/BackendUtil.cpp
@@ -906,6 +906,9 @@ void EmitAssemblyHelper::RunOptimizationPipeline(
<< PluginFN << toString(PassPlugin.takeError());
}
}
+ for (auto PassCallback : CodeGenOpts.PassBuilderCallbacks) {
+ PassCallback(PB);
+ }
#define HANDLE_EXTENSION(Ext)
\
get##Ext##PluginInfo().RegisterPassBuilderCallbacks(PB);
#include "llvm/Support/Extension.def"
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