From ecc99065690f0212995dded115768ec4579cd021 Mon Sep 17 00:00:00 2001
From: Adrian Sampson <adrian@radbox.org>
Date: Thu, 23 Jul 2015 10:51:52 -0700
Subject: [PATCH] Use the auto-registration trick
---
README.md | 3 +--
skeleton/Skeleton.cpp | 13 ++++++++++++-
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/README.md b/README.md
index 47d7c17..101ff56 100644
--- a/README.md
+++ b/README.md
@@ -13,5 +13,4 @@ Build:
Run:
- $ clang -emit-llvm -c -o something.bc something.c
- $ opt -load build/lib/SkeletonPass.* -skeleton something.bc
+ $ clang -Xclang -load -Xclang build/lib/SkeletonPass.* something.c
diff --git a/skeleton/Skeleton.cpp b/skeleton/Skeleton.cpp
index 02fde99..33e98ce 100644
--- a/skeleton/Skeleton.cpp
+++ b/skeleton/Skeleton.cpp
@@ -1,6 +1,8 @@
#include "llvm/Pass.h"
#include "llvm/IR/Function.h"
#include "llvm/Support/raw_ostream.h"
+#include "llvm/IR/LegacyPassManager.h"
+#include "llvm/Transforms/IPO/PassManagerBuilder.h"
using namespace llvm;
namespace {
@@ -17,4 +19,13 @@ namespace {
}
char SkeletonPass::ID = 0;
-static RegisterPass<SkeletonPass> X("skeleton", "my great code transform");
+
+// Automatically enable the pass.
+// http://adriansampson.net/blog/clangpass.html
+static void registerSkeletonPass(const PassManagerBuilder &,
+ legacy::PassManagerBase &PM) {
+ PM.add(new SkeletonPass());
+}
+static RegisterStandardPasses
+ RegisterMyPass(PassManagerBuilder::EP_EarlyAsPossible,
+ registerSkeletonPass);
--
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