Do NOT inline self recursive calls into other functions. This is causing the
pool allocator no end of trouble, and doesn't make a lot of sense anyway. This
does not solve the problem with mutually recursive functions, but they are much less common.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9828 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/Inliner.cpp b/lib/Transforms/IPO/Inliner.cpp
index 6c7a191..8ad72ab 100644
--- a/lib/Transforms/IPO/Inliner.cpp
+++ b/lib/Transforms/IPO/Inliner.cpp
@@ -64,10 +64,13 @@
if (isa<CallInst>(I) || isa<InvokeInst>(I)) {
CallSite CS = CallSite::get(I);
if (Function *Callee = CS.getCalledFunction())
- if (!Callee->isExternal()) {
+ if (!Callee->isExternal() && !IsRecursiveFunction.count(Callee)) {
// Determine whether this is a function IN the SCC...
bool inSCC = SCCFunctions.count(Callee);
+ // Keep track of whether this is a directly recursive function.
+ if (Callee == F) IsRecursiveFunction.insert(F);
+
// If the policy determines that we should inline this function,
// try to do so...
int InlineCost = inSCC ? getRecursiveInlineCost(CS) :