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Strip off CPR's manually, because if we don't, the inliner doesn't delete dead

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functions.  GRR


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9641 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-31 21:05:58 +00:00
parent 07a38e7b77
commit bb9ae1512e
1 changed files with 9 additions and 2 deletions
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9
lib/Transforms/IPO/Inliner.cpp
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@ -13,6 +13,7 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "Inliner.h" #include "Inliner.h"
#include "llvm/Constants.h" // ConstantPointerRef should die
#include "llvm/Module.h" #include "llvm/Module.h"
#include "llvm/iOther.h" #include "llvm/iOther.h"
#include "llvm/iTerminators.h" #include "llvm/iTerminators.h"
@ -109,11 +110,17 @@ bool Inliner::performInlining(CallSite CS, std::set<Function*> &SCC) {
if (!InlineFunction(CS)) return false; if (!InlineFunction(CS)) return false;
++NumInlined; ++NumInlined;
if (Callee->hasOneUse())
if (ConstantPointerRef *CPR =
dyn_cast<ConstantPointerRef>(Callee->use_back()))
if (CPR->use_empty())
CPR->destroyConstant();
// If we inlined the last possible call site to the function, // If we inlined the last possible call site to the function,
// delete the function body now. // delete the function body now.
if (Callee->use_empty() && Callee != Caller && if (Callee->use_empty() && Callee != Caller &&
(Callee->hasInternalLinkage() || Callee->hasLinkOnceLinkage())) { (Callee->hasInternalLinkage() || Callee->hasLinkOnceLinkage())) {
DEBUG(std::cerr << " -> Deleting dead function: " DEBUG(std::cerr << " -> Deleting dead function: " << (void*)Callee
<< Callee->getName() << "\n"); << Callee->getName() << "\n");
std::set<Function*>::iterator I = SCC.find(Callee); std::set<Function*>::iterator I = SCC.find(Callee);
if (I != SCC.end()) // Remove function from this SCC... if (I != SCC.end()) // Remove function from this SCC...