From 3e28eecfea377ea5127ae4c44958630ea34ae9ec Mon Sep 17 00:00:00 2001
From: David Nadlinger <code@klickverbot.at>
Date: Wed, 20 Apr 2011 20:44:49 +0200
Subject: [PATCH] Quick workaround for a LLVM 2.9 crash with higher
 optimization levels.

createFunctionAttrsPass() is a LLVM pass and the crash is deep in LLVM code, maybe something is wrong with the pass manager state.
---
 gen/optimizer.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/gen/optimizer.cpp b/gen/optimizer.cpp
index 280b9541..2c4fd738 100644
--- a/gen/optimizer.cpp
+++ b/gen/optimizer.cpp
@@ -124,7 +124,11 @@ static void addPassesForOptLevel(PassManager& pm) {
         addPass(pm, createInstructionCombiningPass());
         addPass(pm, createCFGSimplificationPass());
         addPass(pm, createPruneEHPass());
-        addPass(pm, createFunctionAttrsPass());
+        
+        // FIXME: Adding this pass crashes LLVM 2.9 in
+        // PMTopLevelManager::schedulePass(), commented out for a quick fix.
+        // addPass(pm, createFunctionAttrsPass());
+
         addPass(pm, createTailCallEliminationPass());
         addPass(pm, createCFGSimplificationPass());
         addPass(pm, createGVNPass());